==============================
[](https://www.npmjs.com/package/qone)
.NET LINQ 在 javascript 中的实现
## 缘由
最近刚好修改了腾讯文档 Excel 表格公式的一些 bug，主要是修改公式的 parser 。比如下面的脚本怎么转成 javascript 运行？
``` js
= IF(SUM(J6:J7) + SUM(J6:J7) > 10, "A2 是 foo", "A2 不是 foo")
```
公式或一些脚本语言的实现包含几个主要步骤:
scanner > lexer > parser > ast > code string
得到 code string 之后可以动态运行，比如 js 里使用 eval ，eval 能保留上下文信息，缺点是执行代码包含编译器代码，eval 的安全性等。
得到 code string 之后也可直接使用生成的 code string 运行，缺点是依赖构建工具或者编辑器插件去动态替换源代码。
比如 wind 同时支持 JIT 和 AOT, qone 的思路和上面类似，但不完全相同， qone 的如下:
scanner > lexer > parser > ast > method(ast)
这个后面写原理时候再细说。
总的来说，因为腾讯文档公式相关工作、早年的 kmdjs 开发 (uglify2) 和 .NET 开发，所以有了 qone 。
- [LINQ](#linq)
- [qone 安装](#qone-安装)
- [qone 关键字与运算符](#qone-关键字与运算符)
- [qone 方法注入](#qone-方法注入)
- [qone select 输出](#qone-select-输出)
- [qone orderby](#qone-orderby)
- [qone groupby](#qone-groupby)
- [qone 多数据源](#qone-多数据源)
- [qone 嵌套子数据源](#qone-嵌套子数据源)
- [qone limit 与分页查询](#qone-limit-与分页查询)
- [links](#star--fork--pr--repl--follow-me)
---
## LINQ
LINQ (语言集成查询) 是 .NET Framework 3.5 版中引入的一项创新功能。在 Visual Studio 中，可以用 Visual Basic 或 C# 为以下数据源编写 LINQ 查询：SQL Server 数据库、XML 文档、ADO.NET 数据集，以及可枚举的 Objects(即 LINQ to Objects)。
qone 是一款让 Web 前端工程师在 javascript 使用 .NET 平台下类似 LINQ 语法的前端库。qone 让 Web 前端工程师通过字符串的形式实现了 LINQ to Objects 的调用（下面统一叫做 qone to objects），Objects即 JSON 组成的 Array。举个简单的例子(qone 远比下面的例子强大):
``` js
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }
]
var result = qone({ list }).query(`
from n in list
where n.age > 18
select n
`)
assert.deepEqual(result, [{ "name": "dntzhang", "age": 28 }])
```
与 LINQ 一样，和 SQL 不同，qone 的 from 也在前面，为后面语句能够有智能提示，qone 是基于 string 的实时编译，不是 javasript 的原生语法，所以虽然 from 写在前面但不支持智能提示，但可以专门为 qone 写个编辑器插件去实现智能提示，所以 qone 语法设计上依然把 from 放在前面。
从根本上说，qone to objects 表示一种新的处理集合的方法。 采用旧方法，您必须编写指定如何从集合检索数据的复杂的 foreach 循环。 而采用 qone 方法，您只需编写描述要检索的内容的声明性代码。
另外，与传统的 foreach 循环相比，qone 查询具有三大优势：
* 它们更简明、更易读，尤其在筛选多个条件时
* 它们使用最少的应用程序代码提供强大的筛选、排序和分组功能
* 无需修改或只需做很小的修改即可将它们移植到其他数据源
通常，您要对数据执行的操作越复杂，就越能体会到 qone 相较于传统迭代技术的优势。
## qone 安装
``` bash
npm install qone
```
CDN:
* [https://unpkg.com/qone@1.0.0/qone.js](https://unpkg.com/qone@1.0.0/qone.js)
* [https://unpkg.com/qone@1.0.0/qone.min.js](https://unpkg.com/qone@1.0.0/qone.min.js)
## qone 关键字与运算符
* from
* in
* where
* select
* orderby
* desc
* asc
* groupby
* limit
其中 from 和 in 一起使用，orderby 和 desc 或者 asc 一起使用。
from 也可以把子属性作为 dataSource:
``` js
from n in data.list
```
qone 支持下面三类运算符:
* 括号：( )
* 比较运算符： = , > , < , >= , <= , !=
* 与或非: && , || , !
条件判断语句也支持 null, undefined, true, false。
通过上面各种组合，你可以写出很复杂的查询条件。比如:
``` js
qone({ list }).query(`
from n in list
where !(n.age > 17 || n.age < 2) && n.name != 'dntzhang'
select n
`)
```
也支持 bool 类型的查询:
``` js
var list = [
{ name: 'qone', age: 1, isBaby: true },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }]
var result = qone({ list }).query(`
from a in list
where a.isBaby && n.name = 'qone'
select a
`)
assert.deepEqual(result, [{ name: 'qone', age: 1, isBaby: true }])
```
其中 isBaby 是 bool 类型，同样的写法:
a.isBaby = true (等同于: a.isBaby)
a.isBaby = false (等同于: !a.isBaby)
## qone 方法注入
通过上面介绍发现 qone 不支持加减乘除位求模运算？怎么才能图灵完备？方法注入搞定一切！如下所示:
``` js
QUnit.test("Method test 8", function (assert) {
var arr = [1, 2, 3, 4, 5]
qone('square', function (num) {
return num * num
})
qone('sqrt', function (num) {
return Math.sqrt(num)
})
var result = qone({ arr }).query(`
from n in arr
where sqrt(n) >= 2
select { squareValue : square(n) }
`)
assert.deepEqual(result, [{ "squareValue": 16 }, { "squareValue": 25 }])
})
```
方法也是支持多参数传入，所以可以写出任意的查询条件。其中select, where, orderby, groupby 语句都支持方法注入。
## qone select 输出
通过 select 可以输出各种格式和字段的数据:
``` js
QUnit.test("Select JSON test", function (assert) {
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }
]
var result = qone({ list }).query(`
from n in list
where n.age < 20
select {n.age, n.name}
`)
assert.deepEqual(result, [
{ "age": 1 , "name": "qone" },
{ "age": 18, "name": "linq" }
])
})
```
把所有场景列举一下:
* `select n` 输出源 item
* `select n.name` 输出一维表
* `select n.name, n.age` 输出二维表
* `select { n.age, n.name }` 缺省方式输出 JSON Array(key自动使用 age 和 name)
* `select { a: n.age, b: n.name }` 指定 key 输出 JSON Array
* `select { a: methodName(n.age), b: n.name }` 注入方法
* `select methodName(n.age), n.name` 注入方法
* `select methodName(n.age, n.name, 1, true, 'abc')` 注入方法并传递参数
## qone orderby
``` js
var result = qone({ list }).query(`
from n in list
where n.age > 0
orderby n.age asc, n.name desc
select n
`)
```
如果没有标记 asc 或者 desc，使用默认排序 asc。
## qone groupby
``` js
QUnit.test("Simple groupby test 1", function (assert) {
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang1', age: 28 },
{ name: 'dntzhang2', age: 28 },
{ name: 'dntzhang3', age: 29 }
]
var result = qone({ list }).query(`
from n in list
where n.age > 18
groupby n.age
`)
assert.deepEqual(result, [
[{ "name": "dntzhang1", "age": 28 }, { "name": "dntzhang2", "age": 28 }],
[{ "name": "dntzhang3", "age": 29 }]])
})
```
groupby 可以作为结束语句，不用跟着也不能跟着 select 语句，groupby 也可以支持方法注入。
## qone 多数据源
``` js
QUnit.test("Multi datasource with props condition", function (assert) {
var listA = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }]
var listB = [
{ name: 'x', age: 11 },
{ name: 'xx', age: 18 },
{ name: 'xxx', age: 13 }
]
var result = qone({ listA, listB }).query(`
from a in listA
from b in listB
where a.age = b.age
select a, b
`)
assert.deepEqual(result, [[{ "name": "linq", "age": 18 }, { "name": "xx", "age": 18 }]])
})
```
多数据源会产生笛卡儿积。
## qone 嵌套子数据源
``` js
QUnit.test("Multi deep from test ", function (assert) {
var list = [
{ name: 'qone', age: 1, isBaby: true, colors: [{ xx: [1, 2, 3] }, { xx: [11, 2, 3] }] },
{ name: 'linq', age: 18, colors: [{ xx: [100, 2, 3] }, { xx: [11, 2, 3] }] },
{ name: 'dntzhang', age: 28, colors: [{ xx: [1, 2, 3] }, { xx: [11, 2, 3] }] }]
var result = qone({ list }).query(`
from a in list
from c in a.colors
from d in c.xx
where d === 100
select a.name, c,d
`)
assert.deepEqual(result, [["linq", { "xx": [100, 2, 3] }, 100]])
})
```
也可以和自身的数据源会产生笛卡儿积。
## qone limit 与分页查询
通过 limit 可以应付最常见的两种查询场景 - top N 和 分页。
查询top3:
``` js
QUnit.test("Limit top 3", function (assert) {
var list = [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 },
{ name: 'dntzhang4', age: 4 },
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 },
{ name: 'dntzhang9', age: 9 },
{ name: 'dntzhang10', age: 10 }
]
var pageIndex = 1,
pageSize = 4
var result = qone({ list }).query(`
from n in list
select n
limit 0, 3
`)
assert.deepEqual(result, [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 }
])
})
```
分页查询:
``` js
QUnit.test("Limit one page test", function (assert) {
var list = [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 },
{ name: 'dntzhang4', age: 4 },
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 },
{ name: 'dntzhang9', age: 9 },
{ name: 'dntzhang10', age: 10 }
]
var pageIndex = 1,
pageSize = 4
var result = qone({ list }).query(`
from n in list
where n.age > 0
select n
limit ${pageIndex * pageSize}, ${pageSize}
`)
assert.deepEqual(result, [
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 }])
})
```
## star & fork & pr & repl & follow me
* [https://github.com/dntzhang/qone](https://github.com/dntzhang/qone)
* [https://dntzhang.github.io/qone](https://dntzhang.github.io/qone)
* [https://github.com/dntzhang](https://github.com/dntzhang)
================================================
FILE: README.md
================================================
English | [简体中文](./README-CN.md)
==============================
[](https://www.npmjs.com/package/qone)
.NET LINQ in javascript
## The reason
Recently, it has just changed some bug of the Excel formula of the Tencent document, mainly modifying the parser of the formula.
For example, how can the following script be transformed to JavaScript?
``` js
= IF(SUM(J6:J7) + SUM(J6:J7) > 10, "A2 is foo", "A2 is not foo")
```
The implementation of formulas or scripting languages includes several main steps:
Scanner > lexer > parser > ast > code string
After getting code string, you can run (JIT) dynamically, such as using Eval in JS, Eval can retain context information, the disadvantage is that the execution code contains compiler code, and it is unsafe, and so on.
After getting code string, you can also use the generated code string to run (AOT) directly, and the disadvantage is to rely on the build tool or editor plug-in to dynamically replace the source code.
For example, wind supports JIT and AOT at the same time. Qone's thinking is similar to that above, but not exactly the same. Qone is as follows:
Scanner > lexer > parser > ast > method(ast)
The detailed principles will be written later. In general, the reasons are the work of the Tencent document formula, early kmdjs development (uglify2) and.NET development, so there is Qone.
- [LINQ](#linq)
- [qone install](#qone-install)
- [qone keyword and operator](#qone-keyword-and-operator)
- [qone method](#qone-method)
- [qone select](#qone-select)
- [qone orderby](#qone-orderby)
- [qone groupby](#qone-groupby)
- [qone multiple data source](#qone-multiple-data-source)
- [qone subdata source](#qone-subdata-source)
- [qone limit and pagination](#qone-limit-and-pagination)
- [links](#star--fork--pr--repl--follow-me)
---
## LINQ
LINQ (language integrated query) is an innovative function introduced in.NET Framework 3.5. In Visual Studio, you can write LINQ queries with Visual Basic or C# for the following data sources: the SQL Server database, XML document, ADO.NET data set, and enumerable Objects.
Qone allows Web front-end engineers to use LINQ to Objects through js string or js template string, Objects is an array of JSON. Let me give you a simple example (Qone is much stronger than the following example):
``` js
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }
]
var result = qone({ list }).query(`
from n in list
where n.age > 18
select n
`)
assert.deepEqual(result, [{ "name": "dntzhang", "age": 28 }])
```
Qone's `from` keyword is also in front like LINQ, with intelligent prompts for the later statements,but qone is real-time compilation based on string, not the native syntax of javasript, so although from is written in the front but does not support intelligent hints.
## qone install
``` bash
npm install qone
```
or get it by CDN:
* [https://unpkg.com/qone@1.0.0/qone.js](https://unpkg.com/qone@1.0.0/qone.js)
* [https://unpkg.com/qone@1.0.0/qone.min.js](https://unpkg.com/qone@1.0.0/qone.min.js)
## qone keyword and operator
* from
* in
* where
* select
* orderby
* desc
* asc
* groupby
* limit
from and in are used together, orderby and desc or asc are used together.
from can also take the sub attributes as dataSource:
``` js
from n in data.list
```
Qone supports the following three class operators:
* brackets：( )
* comparison operator： = , > , < , >= , <= , !=
* and or not: && , || , !
Conditional judgement also supports null, undefined, true, false.
Through the above combinations, you can write complex query conditions. For example:
``` js
qone({ list }).query(`
from n in list
where !(n.age > 17 || n.age < 2) && n.name != 'dntzhang'
select n
`)
```
The bool type of query is also supported:
``` js
var list = [
{ name: 'qone', age: 1, isBaby: true },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }]
var result = qone({ list }).query(`
from a in list
where a.isBaby && n.name = 'qone'
select a
`)
assert.deepEqual(result, [{ name: 'qone', age: 1, isBaby: true }])
```
isBaby is the bool type, and the same way:
a.isBaby = true (equivalent to: a.isBaby)
a.isBaby = false (equivalent to: !a.isBaby)
## qone method
From the above, it is found that QOne does not support arithmetic operations of addition, subtraction, multiplication and division. How can be turing-complete ? Method injection to do everything! As shown below:
``` js
QUnit.test("Method test 8", function (assert) {
var arr = [1, 2, 3, 4, 5]
qone('square', function (num) {
return num * num
})
qone('sqrt', function (num) {
return Math.sqrt(num)
})
var result = qone({ arr }).query(`
from n in arr
where sqrt(n) >= 2
select { squareValue : square(n) }
`)
assert.deepEqual(result, [{ "squareValue": 16 }, { "squareValue": 25 }])
})
```
The method also supports the introduction of multiple parameters, so it can write arbitrary query conditions. select, where, orderby, groupby statements support method injection.
## qone select
select can output data of various formats and fields:
``` js
QUnit.test("Select JSON test", function (assert) {
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }
]
var result = qone({ list }).query(`
from n in list
where n.age < 20
select {n.age, n.name}
`)
assert.deepEqual(result, [
{ "age": 1 , "name": "qone" },
{ "age": 18, "name": "linq" }
])
})
```
List all the scenes:
* `select n` Output source item
* `select n.name` Output one-dimensional table
* `select n.name, n.age` Output two-dimensional table
* `select { n.age, n.name }` Output JSON Array by default (key automatically uses age and name).
* `select { a: n.age, b: n.name }` Specify the key output JSON Array
* `select { a: methodName(n.age), b: n.name }` Injection method
* `select methodName(n.age), n.name` Injection method
* `select methodName(n.age, n.name, 1, true, 'abc')` Injection method and transfer parameters
## qone orderby
``` js
var result = qone({ list }).query(`
from n in list
where n.age > 0
orderby n.age asc, n.name desc
select n
`)
```
If no asc or desc is marked, use the default sort asc.
## qone groupby
``` js
QUnit.test("Simple groupby test 1", function (assert) {
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang1', age: 28 },
{ name: 'dntzhang2', age: 28 },
{ name: 'dntzhang3', age: 29 }
]
var result = qone({ list }).query(`
from n in list
where n.age > 18
groupby n.age
`)
assert.deepEqual(result, [
[{ "name": "dntzhang1", "age": 28 }, { "name": "dntzhang2", "age": 28 }],
[{ "name": "dntzhang3", "age": 29 }]])
})
```
groupby can be used as an ending statement, without following or following select statements. groupby can also support method injection.
## qone multiple data source
``` js
QUnit.test("Multi datasource with props condition", function (assert) {
var listA = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'dntzhang', age: 28 }]
var listB = [
{ name: 'x', age: 11 },
{ name: 'xx', age: 18 },
{ name: 'xxx', age: 13 }
]
var result = qone({ listA, listB }).query(`
from a in listA
from b in listB
where a.age = b.age
select a, b
`)
assert.deepEqual(result, [[{ "name": "linq", "age": 18 }, { "name": "xx", "age": 18 }]])
})
```
The multi data source produces Cartesian product.
## qone subdata source
``` js
QUnit.test("Multi deep from test ", function (assert) {
var list = [
{ name: 'qone', age: 1, isBaby: true, colors: [{ xx: [1, 2, 3] }, { xx: [11, 2, 3] }] },
{ name: 'linq', age: 18, colors: [{ xx: [100, 2, 3] }, { xx: [11, 2, 3] }] },
{ name: 'dntzhang', age: 28, colors: [{ xx: [1, 2, 3] }, { xx: [11, 2, 3] }] }]
var result = qone({ list }).query(`
from a in list
from c in a.colors
from d in c.xx
where d === 100
select a.name, c,d
`)
assert.deepEqual(result, [["linq", { "xx": [100, 2, 3] }, 100]])
})
```
It can also produce Cartesian product with its own data source.
## qone limit and pagination
Limit can cope with the two most common query scenarios - top N and paging.
Query top3:
``` js
QUnit.test("Limit top 3", function (assert) {
var list = [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 },
{ name: 'dntzhang4', age: 4 },
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 },
{ name: 'dntzhang9', age: 9 },
{ name: 'dntzhang10', age: 10 }
]
var pageIndex = 1,
pageSize = 4
var result = qone({ list }).query(`
from n in list
select n
limit 0, 3
`)
assert.deepEqual(result, [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 }
])
})
```
Paging query:
``` js
QUnit.test("Limit one page test", function (assert) {
var list = [
{ name: 'dntzhang1', age: 1 },
{ name: 'dntzhang2', age: 2 },
{ name: 'dntzhang3', age: 3 },
{ name: 'dntzhang4', age: 4 },
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 },
{ name: 'dntzhang9', age: 9 },
{ name: 'dntzhang10', age: 10 }
]
var pageIndex = 1,
pageSize = 4
var result = qone({ list }).query(`
from n in list
where n.age > 0
select n
limit ${pageIndex * pageSize}, ${pageSize}
`)
assert.deepEqual(result, [
{ name: 'dntzhang5', age: 5 },
{ name: 'dntzhang6', age: 6 },
{ name: 'dntzhang7', age: 7 },
{ name: 'dntzhang8', age: 8 }])
})
```
## star & fork & pr & repl & follow me
* [https://github.com/dntzhang/qone](https://github.com/dntzhang/qone)
* [https://dntzhang.github.io/qone](https://dntzhang.github.io/qone)
* [https://github.com/dntzhang](https://github.com/dntzhang)
================================================
FILE: asset/codemirror.css
================================================
/* BASICS */
.CodeMirror {
/* Set height, width, borders, and global font properties here */
font-family: monospace;
height: 300px;
color: black;
direction: ltr;
}
/* PADDING */
.CodeMirror-lines {
padding: 4px 0; /* Vertical padding around content */
}
.CodeMirror pre {
padding: 0 4px; /* Horizontal padding of content */
}
.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
background-color: white; /* The little square between H and V scrollbars */
}
/* GUTTER */
.CodeMirror-gutters {
border-right: 1px solid #ddd;
background-color: #f7f7f7;
white-space: nowrap;
}
.CodeMirror-linenumbers {}
.CodeMirror-linenumber {
padding: 0 3px 0 5px;
min-width: 20px;
text-align: right;
color: #999;
white-space: nowrap;
}
.CodeMirror-guttermarker { color: black; }
.CodeMirror-guttermarker-subtle { color: #999; }
/* CURSOR */
.CodeMirror-cursor {
border-left: 1px solid black;
border-right: none;
width: 0;
}
/* Shown when moving in bi-directional text */
.CodeMirror div.CodeMirror-secondarycursor {
border-left: 1px solid silver;
}
.cm-fat-cursor .CodeMirror-cursor {
width: auto;
border: 0 !important;
background: #7e7;
}
.cm-fat-cursor div.CodeMirror-cursors {
z-index: 1;
}
.cm-fat-cursor-mark {
background-color: rgba(20, 255, 20, 0.5);
-webkit-animation: blink 1.06s steps(1) infinite;
-moz-animation: blink 1.06s steps(1) infinite;
animation: blink 1.06s steps(1) infinite;
}
.cm-animate-fat-cursor {
width: auto;
border: 0;
-webkit-animation: blink 1.06s steps(1) infinite;
-moz-animation: blink 1.06s steps(1) infinite;
animation: blink 1.06s steps(1) infinite;
background-color: #7e7;
}
@-moz-keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
@-webkit-keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
@keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
/* Can style cursor different in overwrite (non-insert) mode */
.CodeMirror-overwrite .CodeMirror-cursor {}
.cm-tab { display: inline-block; text-decoration: inherit; }
.CodeMirror-rulers {
position: absolute;
left: 0; right: 0; top: -50px; bottom: -20px;
overflow: hidden;
}
.CodeMirror-ruler {
border-left: 1px solid #ccc;
top: 0; bottom: 0;
position: absolute;
}
/* DEFAULT THEME */
.cm-s-default .cm-header {color: blue;}
.cm-s-default .cm-quote {color: #090;}
.cm-negative {color: #d44;}
.cm-positive {color: #292;}
.cm-header, .cm-strong {font-weight: bold;}
.cm-em {font-style: italic;}
.cm-link {text-decoration: underline;}
.cm-strikethrough {text-decoration: line-through;}
.cm-s-default .cm-keyword {color: #708;}
.cm-s-default .cm-atom {color: #219;}
.cm-s-default .cm-number {color: #164;}
.cm-s-default .cm-def {color: #00f;}
.cm-s-default .cm-variable,
.cm-s-default .cm-punctuation,
.cm-s-default .cm-property,
.cm-s-default .cm-operator {}
.cm-s-default .cm-variable-2 {color: #05a;}
.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
.cm-s-default .cm-comment {color: #a50;}
.cm-s-default .cm-string {color: #a11;}
.cm-s-default .cm-string-2 {color: #f50;}
.cm-s-default .cm-meta {color: #555;}
.cm-s-default .cm-qualifier {color: #555;}
.cm-s-default .cm-builtin {color: #30a;}
.cm-s-default .cm-bracket {color: #997;}
.cm-s-default .cm-tag {color: #170;}
.cm-s-default .cm-attribute {color: #00c;}
.cm-s-default .cm-hr {color: #999;}
.cm-s-default .cm-link {color: #00c;}
.cm-s-default .cm-error {color: #f00;}
.cm-invalidchar {color: #f00;}
.CodeMirror-composing { border-bottom: 2px solid; }
/* Default styles for common addons */
div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
.CodeMirror-activeline-background {background: #e8f2ff;}
/* STOP */
/* The rest of this file contains styles related to the mechanics of
the editor. You probably shouldn't touch them. */
.CodeMirror {
position: relative;
overflow: hidden;
background: white;
}
.CodeMirror-scroll {
overflow: scroll !important; /* Things will break if this is overridden */
/* 30px is the magic margin used to hide the element's real scrollbars */
/* See overflow: hidden in .CodeMirror */
margin-bottom: -30px; margin-right: -30px;
padding-bottom: 30px;
height: 100%;
outline: none; /* Prevent dragging from highlighting the element */
position: relative;
}
.CodeMirror-sizer {
position: relative;
border-right: 30px solid transparent;
}
/* The fake, visible scrollbars. Used to force redraw during scrolling
before actual scrolling happens, thus preventing shaking and
flickering artifacts. */
.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
position: absolute;
z-index: 6;
display: none;
}
.CodeMirror-vscrollbar {
right: 0; top: 0;
overflow-x: hidden;
overflow-y: scroll;
}
.CodeMirror-hscrollbar {
bottom: 0; left: 0;
overflow-y: hidden;
overflow-x: scroll;
}
.CodeMirror-scrollbar-filler {
right: 0; bottom: 0;
}
.CodeMirror-gutter-filler {
left: 0; bottom: 0;
}
.CodeMirror-gutters {
position: absolute; left: 0; top: 0;
min-height: 100%;
z-index: 3;
}
.CodeMirror-gutter {
white-space: normal;
height: 100%;
display: inline-block;
vertical-align: top;
margin-bottom: -30px;
}
.CodeMirror-gutter-wrapper {
position: absolute;
z-index: 4;
background: none !important;
border: none !important;
}
.CodeMirror-gutter-background {
position: absolute;
top: 0; bottom: 0;
z-index: 4;
}
.CodeMirror-gutter-elt {
position: absolute;
cursor: default;
z-index: 4;
}
.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
.CodeMirror-lines {
cursor: text;
min-height: 1px; /* prevents collapsing before first draw */
}
.CodeMirror pre {
/* Reset some styles that the rest of the page might have set */
-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
border-width: 0;
background: transparent;
font-family: inherit;
font-size: inherit;
margin: 0;
white-space: pre;
word-wrap: normal;
line-height: inherit;
color: inherit;
z-index: 2;
position: relative;
overflow: visible;
-webkit-tap-highlight-color: transparent;
-webkit-font-variant-ligatures: contextual;
font-variant-ligatures: contextual;
}
.CodeMirror-wrap pre {
word-wrap: break-word;
white-space: pre-wrap;
word-break: normal;
}
.CodeMirror-linebackground {
position: absolute;
left: 0; right: 0; top: 0; bottom: 0;
z-index: 0;
}
.CodeMirror-linewidget {
position: relative;
z-index: 2;
padding: 0.1px; /* Force widget margins to stay inside of the container */
}
.CodeMirror-widget {}
.CodeMirror-rtl pre { direction: rtl; }
.CodeMirror-code {
outline: none;
}
/* Force content-box sizing for the elements where we expect it */
.CodeMirror-scroll,
.CodeMirror-sizer,
.CodeMirror-gutter,
.CodeMirror-gutters,
.CodeMirror-linenumber {
-moz-box-sizing: content-box;
box-sizing: content-box;
}
.CodeMirror-measure {
position: absolute;
width: 100%;
height: 0;
overflow: hidden;
visibility: hidden;
}
.CodeMirror-cursor {
position: absolute;
pointer-events: none;
}
.CodeMirror-measure pre { position: static; }
div.CodeMirror-cursors {
visibility: hidden;
position: relative;
z-index: 3;
}
div.CodeMirror-dragcursors {
visibility: visible;
}
.CodeMirror-focused div.CodeMirror-cursors {
visibility: visible;
}
.CodeMirror-selected { background: #d9d9d9; }
.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
.CodeMirror-crosshair { cursor: crosshair; }
.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
.cm-searching {
background-color: #ffa;
background-color: rgba(255, 255, 0, .4);
}
/* Used to force a border model for a node */
.cm-force-border { padding-right: .1px; }
@media print {
/* Hide the cursor when printing */
.CodeMirror div.CodeMirror-cursors {
visibility: hidden;
}
}
/* See issue #2901 */
.cm-tab-wrap-hack:after { content: ''; }
/* Help users use markselection to safely style text background */
span.CodeMirror-selectedtext { background: none; }
================================================
FILE: asset/codemirror.js
================================================
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// This is CodeMirror (http://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.CodeMirror = factory());
}(this, (function () { 'use strict';
// Kludges for bugs and behavior differences that can't be feature
// detected are enabled based on userAgent etc sniffing.
var userAgent = navigator.userAgent
var platform = navigator.platform
var gecko = /gecko\/\d/i.test(userAgent)
var ie_upto10 = /MSIE \d/.test(userAgent)
var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
var ie = ie_upto10 || ie_11up
var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1])
var webkit = /WebKit\//.test(userAgent)
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
var chrome = /Chrome\//.test(userAgent)
var presto = /Opera\//.test(userAgent)
var safari = /Apple Computer/.test(navigator.vendor)
var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
var phantom = /PhantomJS/.test(userAgent)
var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
// This is woefully incomplete. Suggestions for alternative methods welcome.
var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
var mac = ios || /Mac/.test(platform)
var chromeOS = /\bCrOS\b/.test(userAgent)
var windows = /win/i.test(platform)
var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
if (presto_version) { presto_version = Number(presto_version[1]) }
if (presto_version && presto_version >= 15) { presto = false; webkit = true }
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
var captureRightClick = gecko || (ie && ie_version >= 9)
function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
var rmClass = function(node, cls) {
var current = node.className
var match = classTest(cls).exec(current)
if (match) {
var after = current.slice(match.index + match[0].length)
node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
}
}
function removeChildren(e) {
for (var count = e.childNodes.length; count > 0; --count)
{ e.removeChild(e.firstChild) }
return e
}
function removeChildrenAndAdd(parent, e) {
return removeChildren(parent).appendChild(e)
}
function elt(tag, content, className, style) {
var e = document.createElement(tag)
if (className) { e.className = className }
if (style) { e.style.cssText = style }
if (typeof content == "string") { e.appendChild(document.createTextNode(content)) }
else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } }
return e
}
var range
if (document.createRange) { range = function(node, start, end, endNode) {
var r = document.createRange()
r.setEnd(endNode || node, end)
r.setStart(node, start)
return r
} }
else { range = function(node, start, end) {
var r = document.body.createTextRange()
try { r.moveToElementText(node.parentNode) }
catch(e) { return r }
r.collapse(true)
r.moveEnd("character", end)
r.moveStart("character", start)
return r
} }
function contains(parent, child) {
if (child.nodeType == 3) // Android browser always returns false when child is a textnode
{ child = child.parentNode }
if (parent.contains)
{ return parent.contains(child) }
do {
if (child.nodeType == 11) { child = child.host }
if (child == parent) { return true }
} while (child = child.parentNode)
}
var activeElt = function() {
var activeElement = document.activeElement
while (activeElement && activeElement.root && activeElement.root.activeElement)
{ activeElement = activeElement.root.activeElement }
return activeElement
}
// Older versions of IE throws unspecified error when touching
// document.activeElement in some cases (during loading, in iframe)
if (ie && ie_version < 11) { activeElt = function() {
try { return document.activeElement }
catch(e) { return document.body }
} }
function addClass(node, cls) {
var current = node.className
if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls }
}
function joinClasses(a, b) {
var as = a.split(" ")
for (var i = 0; i < as.length; i++)
{ if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i] } }
return b
}
var selectInput = function(node) { node.select() }
if (ios) // Mobile Safari apparently has a bug where select() is broken.
{ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } }
else if (ie) // Suppress mysterious IE10 errors
{ selectInput = function(node) { try { node.select() } catch(_e) {} } }
function bind(f) {
var args = Array.prototype.slice.call(arguments, 1)
return function(){return f.apply(null, args)}
}
function copyObj(obj, target, overwrite) {
if (!target) { target = {} }
for (var prop in obj)
{ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
{ target[prop] = obj[prop] } }
return target
}
// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
function countColumn(string, end, tabSize, startIndex, startValue) {
if (end == null) {
end = string.search(/[^\s\u00a0]/)
if (end == -1) { end = string.length }
}
for (var i = startIndex || 0, n = startValue || 0;;) {
var nextTab = string.indexOf("\t", i)
if (nextTab < 0 || nextTab >= end)
{ return n + (end - i) }
n += nextTab - i
n += tabSize - (n % tabSize)
i = nextTab + 1
}
}
function Delayed() {this.id = null}
Delayed.prototype.set = function(ms, f) {
clearTimeout(this.id)
this.id = setTimeout(f, ms)
}
function indexOf(array, elt) {
for (var i = 0; i < array.length; ++i)
{ if (array[i] == elt) { return i } }
return -1
}
// Number of pixels added to scroller and sizer to hide scrollbar
var scrollerGap = 30
// Returned or thrown by various protocols to signal 'I'm not
// handling this'.
var Pass = {toString: function(){return "CodeMirror.Pass"}}
// Reused option objects for setSelection & friends
var sel_dontScroll = {scroll: false};
var sel_mouse = {origin: "*mouse"};
var sel_move = {origin: "+move"};
// The inverse of countColumn -- find the offset that corresponds to
// a particular column.
function findColumn(string, goal, tabSize) {
for (var pos = 0, col = 0;;) {
var nextTab = string.indexOf("\t", pos)
if (nextTab == -1) { nextTab = string.length }
var skipped = nextTab - pos
if (nextTab == string.length || col + skipped >= goal)
{ return pos + Math.min(skipped, goal - col) }
col += nextTab - pos
col += tabSize - (col % tabSize)
pos = nextTab + 1
if (col >= goal) { return pos }
}
}
var spaceStrs = [""]
function spaceStr(n) {
while (spaceStrs.length <= n)
{ spaceStrs.push(lst(spaceStrs) + " ") }
return spaceStrs[n]
}
function lst(arr) { return arr[arr.length-1] }
function map(array, f) {
var out = []
for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) }
return out
}
function insertSorted(array, value, score) {
var pos = 0, priority = score(value)
while (pos < array.length && score(array[pos]) <= priority) { pos++ }
array.splice(pos, 0, value)
}
function nothing() {}
function createObj(base, props) {
var inst
if (Object.create) {
inst = Object.create(base)
} else {
nothing.prototype = base
inst = new nothing()
}
if (props) { copyObj(props, inst) }
return inst
}
var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
function isWordCharBasic(ch) {
return /\w/.test(ch) || ch > "\x80" &&
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
}
function isWordChar(ch, helper) {
if (!helper) { return isWordCharBasic(ch) }
if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
return helper.test(ch)
}
function isEmpty(obj) {
for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
return true
}
// Extending unicode characters. A series of a non-extending char +
// any number of extending chars is treated as a single unit as far
// as editing and measuring is concerned. This is not fully correct,
// since some scripts/fonts/browsers also treat other configurations
// of code points as a group.
var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
// The display handles the DOM integration, both for input reading
// and content drawing. It holds references to DOM nodes and
// display-related state.
function Display(place, doc, input) {
var d = this
this.input = input
// Covers bottom-right square when both scrollbars are present.
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
d.scrollbarFiller.setAttribute("cm-not-content", "true")
// Covers bottom of gutter when coverGutterNextToScrollbar is on
// and h scrollbar is present.
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
d.gutterFiller.setAttribute("cm-not-content", "true")
// Will contain the actual code, positioned to cover the viewport.
d.lineDiv = elt("div", null, "CodeMirror-code")
// Elements are added to these to represent selection and cursors.
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
d.cursorDiv = elt("div", null, "CodeMirror-cursors")
// A visibility: hidden element used to find the size of things.
d.measure = elt("div", null, "CodeMirror-measure")
// When lines outside of the viewport are measured, they are drawn in this.
d.lineMeasure = elt("div", null, "CodeMirror-measure")
// Wraps everything that needs to exist inside the vertically-padded coordinate system
d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
null, "position: relative; outline: none")
// Moved around its parent to cover visible view.
d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative")
// Set to the height of the document, allowing scrolling.
d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
d.sizerWidth = null
// Behavior of elts with overflow: auto and padding is
// inconsistent across browsers. This is used to ensure the
// scrollable area is big enough.
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
// Will contain the gutters, if any.
d.gutters = elt("div", null, "CodeMirror-gutters")
d.lineGutter = null
// Actual scrollable element.
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
d.scroller.setAttribute("tabIndex", "-1")
// The element in which the editor lives.
d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true }
if (place) {
if (place.appendChild) { place.appendChild(d.wrapper) }
else { place(d.wrapper) }
}
// Current rendered range (may be bigger than the view window).
d.viewFrom = d.viewTo = doc.first
d.reportedViewFrom = d.reportedViewTo = doc.first
// Information about the rendered lines.
d.view = []
d.renderedView = null
// Holds info about a single rendered line when it was rendered
// for measurement, while not in view.
d.externalMeasured = null
// Empty space (in pixels) above the view
d.viewOffset = 0
d.lastWrapHeight = d.lastWrapWidth = 0
d.updateLineNumbers = null
d.nativeBarWidth = d.barHeight = d.barWidth = 0
d.scrollbarsClipped = false
// Used to only resize the line number gutter when necessary (when
// the amount of lines crosses a boundary that makes its width change)
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
// Set to true when a non-horizontal-scrolling line widget is
// added. As an optimization, line widget aligning is skipped when
// this is false.
d.alignWidgets = false
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
// Tracks the maximum line length so that the horizontal scrollbar
// can be kept static when scrolling.
d.maxLine = null
d.maxLineLength = 0
d.maxLineChanged = false
// Used for measuring wheel scrolling granularity
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
// True when shift is held down.
d.shift = false
// Used to track whether anything happened since the context menu
// was opened.
d.selForContextMenu = null
d.activeTouch = null
input.init(d)
}
// Find the line object corresponding to the given line number.
function getLine(doc, n) {
n -= doc.first
if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
var chunk = doc
while (!chunk.lines) {
for (var i = 0;; ++i) {
var child = chunk.children[i], sz = child.chunkSize()
if (n < sz) { chunk = child; break }
n -= sz
}
}
return chunk.lines[n]
}
// Get the part of a document between two positions, as an array of
// strings.
function getBetween(doc, start, end) {
var out = [], n = start.line
doc.iter(start.line, end.line + 1, function (line) {
var text = line.text
if (n == end.line) { text = text.slice(0, end.ch) }
if (n == start.line) { text = text.slice(start.ch) }
out.push(text)
++n
})
return out
}
// Get the lines between from and to, as array of strings.
function getLines(doc, from, to) {
var out = []
doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value
return out
}
// Update the height of a line, propagating the height change
// upwards to parent nodes.
function updateLineHeight(line, height) {
var diff = height - line.height
if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } }
}
// Given a line object, find its line number by walking up through
// its parent links.
function lineNo(line) {
if (line.parent == null) { return null }
var cur = line.parent, no = indexOf(cur.lines, line)
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
for (var i = 0;; ++i) {
if (chunk.children[i] == cur) { break }
no += chunk.children[i].chunkSize()
}
}
return no + cur.first
}
// Find the line at the given vertical position, using the height
// information in the document tree.
function lineAtHeight(chunk, h) {
var n = chunk.first
outer: do {
for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
var child = chunk.children[i$1], ch = child.height
if (h < ch) { chunk = child; continue outer }
h -= ch
n += child.chunkSize()
}
return n
} while (!chunk.lines)
var i = 0
for (; i < chunk.lines.length; ++i) {
var line = chunk.lines[i], lh = line.height
if (h < lh) { break }
h -= lh
}
return n + i
}
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
function lineNumberFor(options, i) {
return String(options.lineNumberFormatter(i + options.firstLineNumber))
}
// A Pos instance represents a position within the text.
function Pos (line, ch) {
if (!(this instanceof Pos)) { return new Pos(line, ch) }
this.line = line; this.ch = ch
}
// Compare two positions, return 0 if they are the same, a negative
// number when a is less, and a positive number otherwise.
function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
function copyPos(x) {return Pos(x.line, x.ch)}
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
// Most of the external API clips given positions to make sure they
// actually exist within the document.
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
function clipPos(doc, pos) {
if (pos.line < doc.first) { return Pos(doc.first, 0) }
var last = doc.first + doc.size - 1
if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
return clipToLen(pos, getLine(doc, pos.line).text.length)
}
function clipToLen(pos, linelen) {
var ch = pos.ch
if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
else if (ch < 0) { return Pos(pos.line, 0) }
else { return pos }
}
function clipPosArray(doc, array) {
var out = []
for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) }
return out
}
// Optimize some code when these features are not used.
var sawReadOnlySpans = false;
var sawCollapsedSpans = false;
function seeReadOnlySpans() {
sawReadOnlySpans = true
}
function seeCollapsedSpans() {
sawCollapsedSpans = true
}
// TEXTMARKER SPANS
function MarkedSpan(marker, from, to) {
this.marker = marker
this.from = from; this.to = to
}
// Search an array of spans for a span matching the given marker.
function getMarkedSpanFor(spans, marker) {
if (spans) { for (var i = 0; i < spans.length; ++i) {
var span = spans[i]
if (span.marker == marker) { return span }
} }
}
// Remove a span from an array, returning undefined if no spans are
// left (we don't store arrays for lines without spans).
function removeMarkedSpan(spans, span) {
var r
for (var i = 0; i < spans.length; ++i)
{ if (spans[i] != span) { (r || (r = [])).push(spans[i]) } }
return r
}
// Add a span to a line.
function addMarkedSpan(line, span) {
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
span.marker.attachLine(line)
}
// Used for the algorithm that adjusts markers for a change in the
// document. These functions cut an array of spans at a given
// character position, returning an array of remaining chunks (or
// undefined if nothing remains).
function markedSpansBefore(old, startCh, isInsert) {
var nw
if (old) { for (var i = 0; i < old.length; ++i) {
var span = old[i], marker = span.marker
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
}
} }
return nw
}
function markedSpansAfter(old, endCh, isInsert) {
var nw
if (old) { for (var i = 0; i < old.length; ++i) {
var span = old[i], marker = span.marker
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
span.to == null ? null : span.to - endCh))
}
} }
return nw
}
// Given a change object, compute the new set of marker spans that
// cover the line in which the change took place. Removes spans
// entirely within the change, reconnects spans belonging to the
// same marker that appear on both sides of the change, and cuts off
// spans partially within the change. Returns an array of span
// arrays with one element for each line in (after) the change.
function stretchSpansOverChange(doc, change) {
if (change.full) { return null }
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
if (!oldFirst && !oldLast) { return null }
var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
// Get the spans that 'stick out' on both sides
var first = markedSpansBefore(oldFirst, startCh, isInsert)
var last = markedSpansAfter(oldLast, endCh, isInsert)
// Next, merge those two ends
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
if (first) {
// Fix up .to properties of first
for (var i = 0; i < first.length; ++i) {
var span = first[i]
if (span.to == null) {
var found = getMarkedSpanFor(last, span.marker)
if (!found) { span.to = startCh }
else if (sameLine) { span.to = found.to == null ? null : found.to + offset }
}
}
}
if (last) {
// Fix up .from in last (or move them into first in case of sameLine)
for (var i$1 = 0; i$1 < last.length; ++i$1) {
var span$1 = last[i$1]
if (span$1.to != null) { span$1.to += offset }
if (span$1.from == null) {
var found$1 = getMarkedSpanFor(first, span$1.marker)
if (!found$1) {
span$1.from = offset
if (sameLine) { (first || (first = [])).push(span$1) }
}
} else {
span$1.from += offset
if (sameLine) { (first || (first = [])).push(span$1) }
}
}
}
// Make sure we didn't create any zero-length spans
if (first) { first = clearEmptySpans(first) }
if (last && last != first) { last = clearEmptySpans(last) }
var newMarkers = [first]
if (!sameLine) {
// Fill gap with whole-line-spans
var gap = change.text.length - 2, gapMarkers
if (gap > 0 && first)
{ for (var i$2 = 0; i$2 < first.length; ++i$2)
{ if (first[i$2].to == null)
{ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } }
for (var i$3 = 0; i$3 < gap; ++i$3)
{ newMarkers.push(gapMarkers) }
newMarkers.push(last)
}
return newMarkers
}
// Remove spans that are empty and don't have a clearWhenEmpty
// option of false.
function clearEmptySpans(spans) {
for (var i = 0; i < spans.length; ++i) {
var span = spans[i]
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
{ spans.splice(i--, 1) }
}
if (!spans.length) { return null }
return spans
}
// Used to 'clip' out readOnly ranges when making a change.
function removeReadOnlyRanges(doc, from, to) {
var markers = null
doc.iter(from.line, to.line + 1, function (line) {
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
var mark = line.markedSpans[i].marker
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
{ (markers || (markers = [])).push(mark) }
} }
})
if (!markers) { return null }
var parts = [{from: from, to: to}]
for (var i = 0; i < markers.length; ++i) {
var mk = markers[i], m = mk.find(0)
for (var j = 0; j < parts.length; ++j) {
var p = parts[j]
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
{ newParts.push({from: p.from, to: m.from}) }
if (dto > 0 || !mk.inclusiveRight && !dto)
{ newParts.push({from: m.to, to: p.to}) }
parts.splice.apply(parts, newParts)
j += newParts.length - 1
}
}
return parts
}
// Connect or disconnect spans from a line.
function detachMarkedSpans(line) {
var spans = line.markedSpans
if (!spans) { return }
for (var i = 0; i < spans.length; ++i)
{ spans[i].marker.detachLine(line) }
line.markedSpans = null
}
function attachMarkedSpans(line, spans) {
if (!spans) { return }
for (var i = 0; i < spans.length; ++i)
{ spans[i].marker.attachLine(line) }
line.markedSpans = spans
}
// Helpers used when computing which overlapping collapsed span
// counts as the larger one.
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
// Returns a number indicating which of two overlapping collapsed
// spans is larger (and thus includes the other). Falls back to
// comparing ids when the spans cover exactly the same range.
function compareCollapsedMarkers(a, b) {
var lenDiff = a.lines.length - b.lines.length
if (lenDiff != 0) { return lenDiff }
var aPos = a.find(), bPos = b.find()
var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
if (fromCmp) { return -fromCmp }
var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
if (toCmp) { return toCmp }
return b.id - a.id
}
// Find out whether a line ends or starts in a collapsed span. If
// so, return the marker for that span.
function collapsedSpanAtSide(line, start) {
var sps = sawCollapsedSpans && line.markedSpans, found
if (sps) { for (var sp = void 0, i = 0; i < sps.length; ++i) {
sp = sps[i]
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
(!found || compareCollapsedMarkers(found, sp.marker) < 0))
{ found = sp.marker }
} }
return found
}
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
// Test whether there exists a collapsed span that partially
// overlaps (covers the start or end, but not both) of a new span.
// Such overlap is not allowed.
function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
var line = getLine(doc, lineNo)
var sps = sawCollapsedSpans && line.markedSpans
if (sps) { for (var i = 0; i < sps.length; ++i) {
var sp = sps[i]
if (!sp.marker.collapsed) { continue }
var found = sp.marker.find(0)
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
{ return true }
} }
}
// A visual line is a line as drawn on the screen. Folding, for
// example, can cause multiple logical lines to appear on the same
// visual line. This finds the start of the visual line that the
// given line is part of (usually that is the line itself).
function visualLine(line) {
var merged
while (merged = collapsedSpanAtStart(line))
{ line = merged.find(-1, true).line }
return line
}
// Returns an array of logical lines that continue the visual line
// started by the argument, or undefined if there are no such lines.
function visualLineContinued(line) {
var merged, lines
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line
;(lines || (lines = [])).push(line)
}
return lines
}
// Get the line number of the start of the visual line that the
// given line number is part of.
function visualLineNo(doc, lineN) {
var line = getLine(doc, lineN), vis = visualLine(line)
if (line == vis) { return lineN }
return lineNo(vis)
}
// Get the line number of the start of the next visual line after
// the given line.
function visualLineEndNo(doc, lineN) {
if (lineN > doc.lastLine()) { return lineN }
var line = getLine(doc, lineN), merged
if (!lineIsHidden(doc, line)) { return lineN }
while (merged = collapsedSpanAtEnd(line))
{ line = merged.find(1, true).line }
return lineNo(line) + 1
}
// Compute whether a line is hidden. Lines count as hidden when they
// are part of a visual line that starts with another line, or when
// they are entirely covered by collapsed, non-widget span.
function lineIsHidden(doc, line) {
var sps = sawCollapsedSpans && line.markedSpans
if (sps) { for (var sp = void 0, i = 0; i < sps.length; ++i) {
sp = sps[i]
if (!sp.marker.collapsed) { continue }
if (sp.from == null) { return true }
if (sp.marker.widgetNode) { continue }
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
{ return true }
} }
}
function lineIsHiddenInner(doc, line, span) {
if (span.to == null) {
var end = span.marker.find(1, true)
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
}
if (span.marker.inclusiveRight && span.to == line.text.length)
{ return true }
for (var sp = void 0, i = 0; i < line.markedSpans.length; ++i) {
sp = line.markedSpans[i]
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
(sp.to == null || sp.to != span.from) &&
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
lineIsHiddenInner(doc, line, sp)) { return true }
}
}
// Find the height above the given line.
function heightAtLine(lineObj) {
lineObj = visualLine(lineObj)
var h = 0, chunk = lineObj.parent
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i]
if (line == lineObj) { break }
else { h += line.height }
}
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
var cur = p.children[i$1]
if (cur == chunk) { break }
else { h += cur.height }
}
}
return h
}
// Compute the character length of a line, taking into account
// collapsed ranges (see markText) that might hide parts, and join
// other lines onto it.
function lineLength(line) {
if (line.height == 0) { return 0 }
var len = line.text.length, merged, cur = line
while (merged = collapsedSpanAtStart(cur)) {
var found = merged.find(0, true)
cur = found.from.line
len += found.from.ch - found.to.ch
}
cur = line
while (merged = collapsedSpanAtEnd(cur)) {
var found$1 = merged.find(0, true)
len -= cur.text.length - found$1.from.ch
cur = found$1.to.line
len += cur.text.length - found$1.to.ch
}
return len
}
// Find the longest line in the document.
function findMaxLine(cm) {
var d = cm.display, doc = cm.doc
d.maxLine = getLine(doc, doc.first)
d.maxLineLength = lineLength(d.maxLine)
d.maxLineChanged = true
doc.iter(function (line) {
var len = lineLength(line)
if (len > d.maxLineLength) {
d.maxLineLength = len
d.maxLine = line
}
})
}
// BIDI HELPERS
function iterateBidiSections(order, from, to, f) {
if (!order) { return f(from, to, "ltr") }
var found = false
for (var i = 0; i < order.length; ++i) {
var part = order[i]
if (part.from < to && part.to > from || from == to && part.to == from) {
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr")
found = true
}
}
if (!found) { f(from, to, "ltr") }
}
function bidiLeft(part) { return part.level % 2 ? part.to : part.from }
function bidiRight(part) { return part.level % 2 ? part.from : part.to }
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0 }
function lineRight(line) {
var order = getOrder(line)
if (!order) { return line.text.length }
return bidiRight(lst(order))
}
function compareBidiLevel(order, a, b) {
var linedir = order[0].level
if (a == linedir) { return true }
if (b == linedir) { return false }
return a < b
}
var bidiOther = null
function getBidiPartAt(order, pos) {
var found
bidiOther = null
for (var i = 0; i < order.length; ++i) {
var cur = order[i]
if (cur.from < pos && cur.to > pos) { return i }
if ((cur.from == pos || cur.to == pos)) {
if (found == null) {
found = i
} else if (compareBidiLevel(order, cur.level, order[found].level)) {
if (cur.from != cur.to) { bidiOther = found }
return i
} else {
if (cur.from != cur.to) { bidiOther = i }
return found
}
}
}
return found
}
function moveInLine(line, pos, dir, byUnit) {
if (!byUnit) { return pos + dir }
do { pos += dir }
while (pos > 0 && isExtendingChar(line.text.charAt(pos)))
return pos
}
// This is needed in order to move 'visually' through bi-directional
// text -- i.e., pressing left should make the cursor go left, even
// when in RTL text. The tricky part is the 'jumps', where RTL and
// LTR text touch each other. This often requires the cursor offset
// to move more than one unit, in order to visually move one unit.
function moveVisually(line, start, dir, byUnit) {
var bidi = getOrder(line)
if (!bidi) { return moveLogically(line, start, dir, byUnit) }
var pos = getBidiPartAt(bidi, start), part = bidi[pos]
var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit)
for (;;) {
if (target > part.from && target < part.to) { return target }
if (target == part.from || target == part.to) {
if (getBidiPartAt(bidi, target) == pos) { return target }
part = bidi[pos += dir]
return (dir > 0) == part.level % 2 ? part.to : part.from
} else {
part = bidi[pos += dir]
if (!part) { return null }
if ((dir > 0) == part.level % 2)
{ target = moveInLine(line, part.to, -1, byUnit) }
else
{ target = moveInLine(line, part.from, 1, byUnit) }
}
}
}
function moveLogically(line, start, dir, byUnit) {
var target = start + dir
if (byUnit) { while (target > 0 && isExtendingChar(line.text.charAt(target))) { target += dir } }
return target < 0 || target > line.text.length ? null : target
}
// Bidirectional ordering algorithm
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
// that this (partially) implements.
// One-char codes used for character types:
// L (L): Left-to-Right
// R (R): Right-to-Left
// r (AL): Right-to-Left Arabic
// 1 (EN): European Number
// + (ES): European Number Separator
// % (ET): European Number Terminator
// n (AN): Arabic Number
// , (CS): Common Number Separator
// m (NSM): Non-Spacing Mark
// b (BN): Boundary Neutral
// s (B): Paragraph Separator
// t (S): Segment Separator
// w (WS): Whitespace
// N (ON): Other Neutrals
// Returns null if characters are ordered as they appear
// (left-to-right), or an array of sections ({from, to, level}
// objects) in the order in which they occur visually.
var bidiOrdering = (function() {
// Character types for codepoints 0 to 0xff
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
// Character types for codepoints 0x600 to 0x6ff
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"
function charType(code) {
if (code <= 0xf7) { return lowTypes.charAt(code) }
else if (0x590 <= code && code <= 0x5f4) { return "R" }
else if (0x600 <= code && code <= 0x6ed) { return arabicTypes.charAt(code - 0x600) }
else if (0x6ee <= code && code <= 0x8ac) { return "r" }
else if (0x2000 <= code && code <= 0x200b) { return "w" }
else if (code == 0x200c) { return "b" }
else { return "L" }
}
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
// Browsers seem to always treat the boundaries of block elements as being L.
var outerType = "L"
function BidiSpan(level, from, to) {
this.level = level
this.from = from; this.to = to
}
return function(str) {
if (!bidiRE.test(str)) { return false }
var len = str.length, types = []
for (var i = 0; i < len; ++i)
{ types.push(charType(str.charCodeAt(i))) }
// W1. Examine each non-spacing mark (NSM) in the level run, and
// change the type of the NSM to the type of the previous
// character. If the NSM is at the start of the level run, it will
// get the type of sor.
for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
var type = types[i$1]
if (type == "m") { types[i$1] = prev }
else { prev = type }
}
// W2. Search backwards from each instance of a European number
// until the first strong type (R, L, AL, or sor) is found. If an
// AL is found, change the type of the European number to Arabic
// number.
// W3. Change all ALs to R.
for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
var type$1 = types[i$2]
if (type$1 == "1" && cur == "r") { types[i$2] = "n" }
else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R" } }
}
// W4. A single European separator between two European numbers
// changes to a European number. A single common separator between
// two numbers of the same type changes to that type.
for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
var type$2 = types[i$3]
if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1" }
else if (type$2 == "," && prev$1 == types[i$3+1] &&
(prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1 }
prev$1 = type$2
}
// W5. A sequence of European terminators adjacent to European
// numbers changes to all European numbers.
// W6. Otherwise, separators and terminators change to Other
// Neutral.
for (var i$4 = 0; i$4 < len; ++i$4) {
var type$3 = types[i$4]
if (type$3 == ",") { types[i$4] = "N" }
else if (type$3 == "%") {
var end = void 0
for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
for (var j = i$4; j < end; ++j) { types[j] = replace }
i$4 = end - 1
}
}
// W7. Search backwards from each instance of a European number
// until the first strong type (R, L, or sor) is found. If an L is
// found, then change the type of the European number to L.
for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
var type$4 = types[i$5]
if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L" }
else if (isStrong.test(type$4)) { cur$1 = type$4 }
}
// N1. A sequence of neutrals takes the direction of the
// surrounding strong text if the text on both sides has the same
// direction. European and Arabic numbers act as if they were R in
// terms of their influence on neutrals. Start-of-level-run (sor)
// and end-of-level-run (eor) are used at level run boundaries.
// N2. Any remaining neutrals take the embedding direction.
for (var i$6 = 0; i$6 < len; ++i$6) {
if (isNeutral.test(types[i$6])) {
var end$1 = void 0
for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
var before = (i$6 ? types[i$6-1] : outerType) == "L"
var after = (end$1 < len ? types[end$1] : outerType) == "L"
var replace$1 = before || after ? "L" : "R"
for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 }
i$6 = end$1 - 1
}
}
// Here we depart from the documented algorithm, in order to avoid
// building up an actual levels array. Since there are only three
// levels (0, 1, 2) in an implementation that doesn't take
// explicit embedding into account, we can build up the order on
// the fly, without following the level-based algorithm.
var order = [], m
for (var i$7 = 0; i$7 < len;) {
if (countsAsLeft.test(types[i$7])) {
var start = i$7
for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
order.push(new BidiSpan(0, start, i$7))
} else {
var pos = i$7, at = order.length
for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
for (var j$2 = pos; j$2 < i$7;) {
if (countsAsNum.test(types[j$2])) {
if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) }
var nstart = j$2
for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
order.splice(at, 0, new BidiSpan(2, nstart, j$2))
pos = j$2
} else { ++j$2 }
}
if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) }
}
}
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
order[0].from = m[0].length
order.unshift(new BidiSpan(0, 0, m[0].length))
}
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
lst(order).to -= m[0].length
order.push(new BidiSpan(0, len - m[0].length, len))
}
if (order[0].level == 2)
{ order.unshift(new BidiSpan(1, order[0].to, order[0].to)) }
if (order[0].level != lst(order).level)
{ order.push(new BidiSpan(order[0].level, len, len)) }
return order
}
})()
// Get the bidi ordering for the given line (and cache it). Returns
// false for lines that are fully left-to-right, and an array of
// BidiSpan objects otherwise.
function getOrder(line) {
var order = line.order
if (order == null) { order = line.order = bidiOrdering(line.text) }
return order
}
// EVENT HANDLING
// Lightweight event framework. on/off also work on DOM nodes,
// registering native DOM handlers.
var on = function(emitter, type, f) {
if (emitter.addEventListener)
{ emitter.addEventListener(type, f, false) }
else if (emitter.attachEvent)
{ emitter.attachEvent("on" + type, f) }
else {
var map = emitter._handlers || (emitter._handlers = {})
var arr = map[type] || (map[type] = [])
arr.push(f)
}
}
var noHandlers = []
function getHandlers(emitter, type, copy) {
var arr = emitter._handlers && emitter._handlers[type]
if (copy) { return arr && arr.length > 0 ? arr.slice() : noHandlers }
else { return arr || noHandlers }
}
function off(emitter, type, f) {
if (emitter.removeEventListener)
{ emitter.removeEventListener(type, f, false) }
else if (emitter.detachEvent)
{ emitter.detachEvent("on" + type, f) }
else {
var handlers = getHandlers(emitter, type, false)
for (var i = 0; i < handlers.length; ++i)
{ if (handlers[i] == f) { handlers.splice(i, 1); break } }
}
}
function signal(emitter, type /*, values...*/) {
var handlers = getHandlers(emitter, type, true)
if (!handlers.length) { return }
var args = Array.prototype.slice.call(arguments, 2)
for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) }
}
// The DOM events that CodeMirror handles can be overridden by
// registering a (non-DOM) handler on the editor for the event name,
// and preventDefault-ing the event in that handler.
function signalDOMEvent(cm, e, override) {
if (typeof e == "string")
{ e = {type: e, preventDefault: function() { this.defaultPrevented = true }} }
signal(cm, override || e.type, cm, e)
return e_defaultPrevented(e) || e.codemirrorIgnore
}
function signalCursorActivity(cm) {
var arr = cm._handlers && cm._handlers.cursorActivity
if (!arr) { return }
var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
{ set.push(arr[i]) } }
}
function hasHandler(emitter, type) {
return getHandlers(emitter, type).length > 0
}
// Add on and off methods to a constructor's prototype, to make
// registering events on such objects more convenient.
function eventMixin(ctor) {
ctor.prototype.on = function(type, f) {on(this, type, f)}
ctor.prototype.off = function(type, f) {off(this, type, f)}
}
// Due to the fact that we still support jurassic IE versions, some
// compatibility wrappers are needed.
function e_preventDefault(e) {
if (e.preventDefault) { e.preventDefault() }
else { e.returnValue = false }
}
function e_stopPropagation(e) {
if (e.stopPropagation) { e.stopPropagation() }
else { e.cancelBubble = true }
}
function e_defaultPrevented(e) {
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
}
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
function e_target(e) {return e.target || e.srcElement}
function e_button(e) {
var b = e.which
if (b == null) {
if (e.button & 1) { b = 1 }
else if (e.button & 2) { b = 3 }
else if (e.button & 4) { b = 2 }
}
if (mac && e.ctrlKey && b == 1) { b = 3 }
return b
}
// Detect drag-and-drop
var dragAndDrop = function() {
// There is *some* kind of drag-and-drop support in IE6-8, but I
// couldn't get it to work yet.
if (ie && ie_version < 9) { return false }
var div = elt('div')
return "draggable" in div || "dragDrop" in div
}()
var zwspSupported
function zeroWidthElement(measure) {
if (zwspSupported == null) {
var test = elt("span", "\u200b")
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
if (measure.firstChild.offsetHeight != 0)
{ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) }
}
var node = zwspSupported ? elt("span", "\u200b") :
elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
node.setAttribute("cm-text", "")
return node
}
// Feature-detect IE's crummy client rect reporting for bidi text
var badBidiRects
function hasBadBidiRects(measure) {
if (badBidiRects != null) { return badBidiRects }
var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
var r0 = range(txt, 0, 1).getBoundingClientRect()
var r1 = range(txt, 1, 2).getBoundingClientRect()
removeChildren(measure)
if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
return badBidiRects = (r1.right - r0.right < 3)
}
// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
var pos = 0, result = [], l = string.length
while (pos <= l) {
var nl = string.indexOf("\n", pos)
if (nl == -1) { nl = string.length }
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
var rt = line.indexOf("\r")
if (rt != -1) {
result.push(line.slice(0, rt))
pos += rt + 1
} else {
result.push(line)
pos = nl + 1
}
}
return result
} : function (string) { return string.split(/\r\n?|\n/); }
var hasSelection = window.getSelection ? function (te) {
try { return te.selectionStart != te.selectionEnd }
catch(e) { return false }
} : function (te) {
var range
try {range = te.ownerDocument.selection.createRange()}
catch(e) {}
if (!range || range.parentElement() != te) { return false }
return range.compareEndPoints("StartToEnd", range) != 0
}
var hasCopyEvent = (function () {
var e = elt("div")
if ("oncopy" in e) { return true }
e.setAttribute("oncopy", "return;")
return typeof e.oncopy == "function"
})()
var badZoomedRects = null
function hasBadZoomedRects(measure) {
if (badZoomedRects != null) { return badZoomedRects }
var node = removeChildrenAndAdd(measure, elt("span", "x"))
var normal = node.getBoundingClientRect()
var fromRange = range(node, 0, 1).getBoundingClientRect()
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
}
var modes = {};
var mimeModes = {};
// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
function defineMode(name, mode) {
if (arguments.length > 2)
{ mode.dependencies = Array.prototype.slice.call(arguments, 2) }
modes[name] = mode
}
function defineMIME(mime, spec) {
mimeModes[mime] = spec
}
// Given a MIME type, a {name, ...options} config object, or a name
// string, return a mode config object.
function resolveMode(spec) {
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
spec = mimeModes[spec]
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
var found = mimeModes[spec.name]
if (typeof found == "string") { found = {name: found} }
spec = createObj(found, spec)
spec.name = found.name
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
return resolveMode("application/xml")
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
return resolveMode("application/json")
}
if (typeof spec == "string") { return {name: spec} }
else { return spec || {name: "null"} }
}
// Given a mode spec (anything that resolveMode accepts), find and
// initialize an actual mode object.
function getMode(options, spec) {
spec = resolveMode(spec)
var mfactory = modes[spec.name]
if (!mfactory) { return getMode(options, "text/plain") }
var modeObj = mfactory(options, spec)
if (modeExtensions.hasOwnProperty(spec.name)) {
var exts = modeExtensions[spec.name]
for (var prop in exts) {
if (!exts.hasOwnProperty(prop)) { continue }
if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop] }
modeObj[prop] = exts[prop]
}
}
modeObj.name = spec.name
if (spec.helperType) { modeObj.helperType = spec.helperType }
if (spec.modeProps) { for (var prop$1 in spec.modeProps)
{ modeObj[prop$1] = spec.modeProps[prop$1] } }
return modeObj
}
// This can be used to attach properties to mode objects from
// outside the actual mode definition.
var modeExtensions = {}
function extendMode(mode, properties) {
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
copyObj(properties, exts)
}
function copyState(mode, state) {
if (state === true) { return state }
if (mode.copyState) { return mode.copyState(state) }
var nstate = {}
for (var n in state) {
var val = state[n]
if (val instanceof Array) { val = val.concat([]) }
nstate[n] = val
}
return nstate
}
// Given a mode and a state (for that mode), find the inner mode and
// state at the position that the state refers to.
function innerMode(mode, state) {
var info
while (mode.innerMode) {
info = mode.innerMode(state)
if (!info || info.mode == mode) { break }
state = info.state
mode = info.mode
}
return info || {mode: mode, state: state}
}
function startState(mode, a1, a2) {
return mode.startState ? mode.startState(a1, a2) : true
}
// STRING STREAM
// Fed to the mode parsers, provides helper functions to make
// parsers more succinct.
var StringStream = function(string, tabSize) {
this.pos = this.start = 0
this.string = string
this.tabSize = tabSize || 8
this.lastColumnPos = this.lastColumnValue = 0
this.lineStart = 0
}
StringStream.prototype = {
eol: function() {return this.pos >= this.string.length},
sol: function() {return this.pos == this.lineStart},
peek: function() {return this.string.charAt(this.pos) || undefined},
next: function() {
if (this.pos < this.string.length)
{ return this.string.charAt(this.pos++) }
},
eat: function(match) {
var ch = this.string.charAt(this.pos)
var ok
if (typeof match == "string") { ok = ch == match }
else { ok = ch && (match.test ? match.test(ch) : match(ch)) }
if (ok) {++this.pos; return ch}
},
eatWhile: function(match) {
var start = this.pos
while (this.eat(match)){}
return this.pos > start
},
eatSpace: function() {
var this$1 = this;
var start = this.pos
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos }
return this.pos > start
},
skipToEnd: function() {this.pos = this.string.length},
skipTo: function(ch) {
var found = this.string.indexOf(ch, this.pos)
if (found > -1) {this.pos = found; return true}
},
backUp: function(n) {this.pos -= n},
column: function() {
if (this.lastColumnPos < this.start) {
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
this.lastColumnPos = this.start
}
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
},
indentation: function() {
return countColumn(this.string, null, this.tabSize) -
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
},
match: function(pattern, consume, caseInsensitive) {
if (typeof pattern == "string") {
var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }
var substr = this.string.substr(this.pos, pattern.length)
if (cased(substr) == cased(pattern)) {
if (consume !== false) { this.pos += pattern.length }
return true
}
} else {
var match = this.string.slice(this.pos).match(pattern)
if (match && match.index > 0) { return null }
if (match && consume !== false) { this.pos += match[0].length }
return match
}
},
current: function(){return this.string.slice(this.start, this.pos)},
hideFirstChars: function(n, inner) {
this.lineStart += n
try { return inner() }
finally { this.lineStart -= n }
}
}
// Compute a style array (an array starting with a mode generation
// -- for invalidation -- followed by pairs of end positions and
// style strings), which is used to highlight the tokens on the
// line.
function highlightLine(cm, line, state, forceToEnd) {
// A styles array always starts with a number identifying the
// mode/overlays that it is based on (for easy invalidation).
var st = [cm.state.modeGen], lineClasses = {}
// Compute the base array of styles
runMode(cm, line.text, cm.doc.mode, state, function (end, style) { return st.push(end, style); },
lineClasses, forceToEnd)
// Run overlays, adjust style array.
var loop = function ( o ) {
var overlay = cm.state.overlays[o], i = 1, at = 0
runMode(cm, line.text, overlay.mode, true, function (end, style) {
var start = i
// Ensure there's a token end at the current position, and that i points at it
while (at < end) {
var i_end = st[i]
if (i_end > end)
{ st.splice(i, 1, end, st[i+1], i_end) }
i += 2
at = Math.min(end, i_end)
}
if (!style) { return }
if (overlay.opaque) {
st.splice(start, i - start, end, "overlay " + style)
i = start + 2
} else {
for (; start < i; start += 2) {
var cur = st[start+1]
st[start+1] = (cur ? cur + " " : "") + "overlay " + style
}
}
}, lineClasses)
};
for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
}
function getLineStyles(cm, line, updateFrontier) {
if (!line.styles || line.styles[0] != cm.state.modeGen) {
var state = getStateBefore(cm, lineNo(line))
var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state)
line.stateAfter = state
line.styles = result.styles
if (result.classes) { line.styleClasses = result.classes }
else if (line.styleClasses) { line.styleClasses = null }
if (updateFrontier === cm.doc.frontier) { cm.doc.frontier++ }
}
return line.styles
}
function getStateBefore(cm, n, precise) {
var doc = cm.doc, display = cm.display
if (!doc.mode.startState) { return true }
var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter
if (!state) { state = startState(doc.mode) }
else { state = copyState(doc.mode, state) }
doc.iter(pos, n, function (line) {
processLine(cm, line.text, state)
var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo
line.stateAfter = save ? copyState(doc.mode, state) : null
++pos
})
if (precise) { doc.frontier = pos }
return state
}
// Lightweight form of highlight -- proceed over this line and
// update state, but don't save a style array. Used for lines that
// aren't currently visible.
function processLine(cm, text, state, startAt) {
var mode = cm.doc.mode
var stream = new StringStream(text, cm.options.tabSize)
stream.start = stream.pos = startAt || 0
if (text == "") { callBlankLine(mode, state) }
while (!stream.eol()) {
readToken(mode, stream, state)
stream.start = stream.pos
}
}
function callBlankLine(mode, state) {
if (mode.blankLine) { return mode.blankLine(state) }
if (!mode.innerMode) { return }
var inner = innerMode(mode, state)
if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
}
function readToken(mode, stream, state, inner) {
for (var i = 0; i < 10; i++) {
if (inner) { inner[0] = innerMode(mode, state).mode }
var style = mode.token(stream, state)
if (stream.pos > stream.start) { return style }
}
throw new Error("Mode " + mode.name + " failed to advance stream.")
}
// Utility for getTokenAt and getLineTokens
function takeToken(cm, pos, precise, asArray) {
var getObj = function (copy) { return ({
start: stream.start, end: stream.pos,
string: stream.current(),
type: style || null,
state: copy ? copyState(doc.mode, state) : state
}); }
var doc = cm.doc, mode = doc.mode, style
pos = clipPos(doc, pos)
var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise)
var stream = new StringStream(line.text, cm.options.tabSize), tokens
if (asArray) { tokens = [] }
while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
stream.start = stream.pos
style = readToken(mode, stream, state)
if (asArray) { tokens.push(getObj(true)) }
}
return asArray ? tokens : getObj()
}
function extractLineClasses(type, output) {
if (type) { for (;;) {
var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
if (!lineClass) { break }
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
var prop = lineClass[1] ? "bgClass" : "textClass"
if (output[prop] == null)
{ output[prop] = lineClass[2] }
else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
{ output[prop] += " " + lineClass[2] }
} }
return type
}
// Run the given mode's parser over a line, calling f for each token.
function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
var flattenSpans = mode.flattenSpans
if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans }
var curStart = 0, curStyle = null
var stream = new StringStream(text, cm.options.tabSize), style
var inner = cm.options.addModeClass && [null]
if (text == "") { extractLineClasses(callBlankLine(mode, state), lineClasses) }
while (!stream.eol()) {
if (stream.pos > cm.options.maxHighlightLength) {
flattenSpans = false
if (forceToEnd) { processLine(cm, text, state, stream.pos) }
stream.pos = text.length
style = null
} else {
style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses)
}
if (inner) {
var mName = inner[0].name
if (mName) { style = "m-" + (style ? mName + " " + style : mName) }
}
if (!flattenSpans || curStyle != style) {
while (curStart < stream.start) {
curStart = Math.min(stream.start, curStart + 5000)
f(curStart, curStyle)
}
curStyle = style
}
stream.start = stream.pos
}
while (curStart < stream.pos) {
// Webkit seems to refuse to render text nodes longer than 57444
// characters, and returns inaccurate measurements in nodes
// starting around 5000 chars.
var pos = Math.min(stream.pos, curStart + 5000)
f(pos, curStyle)
curStart = pos
}
}
// Finds the line to start with when starting a parse. Tries to
// find a line with a stateAfter, so that it can start with a
// valid state. If that fails, it returns the line with the
// smallest indentation, which tends to need the least context to
// parse correctly.
function findStartLine(cm, n, precise) {
var minindent, minline, doc = cm.doc
var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
for (var search = n; search > lim; --search) {
if (search <= doc.first) { return doc.first }
var line = getLine(doc, search - 1)
if (line.stateAfter && (!precise || search <= doc.frontier)) { return search }
var indented = countColumn(line.text, null, cm.options.tabSize)
if (minline == null || minindent > indented) {
minline = search - 1
minindent = indented
}
}
return minline
}
// LINE DATA STRUCTURE
// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
function Line(text, markedSpans, estimateHeight) {
this.text = text
attachMarkedSpans(this, markedSpans)
this.height = estimateHeight ? estimateHeight(this) : 1
}
eventMixin(Line)
Line.prototype.lineNo = function() { return lineNo(this) }
// Change the content (text, markers) of a line. Automatically
// invalidates cached information and tries to re-estimate the
// line's height.
function updateLine(line, text, markedSpans, estimateHeight) {
line.text = text
if (line.stateAfter) { line.stateAfter = null }
if (line.styles) { line.styles = null }
if (line.order != null) { line.order = null }
detachMarkedSpans(line)
attachMarkedSpans(line, markedSpans)
var estHeight = estimateHeight ? estimateHeight(line) : 1
if (estHeight != line.height) { updateLineHeight(line, estHeight) }
}
// Detach a line from the document tree and its markers.
function cleanUpLine(line) {
line.parent = null
detachMarkedSpans(line)
}
// Convert a style as returned by a mode (either null, or a string
// containing one or more styles) to a CSS style. This is cached,
// and also looks for line-wide styles.
var styleToClassCache = {};
var styleToClassCacheWithMode = {};
function interpretTokenStyle(style, options) {
if (!style || /^\s*$/.test(style)) { return null }
var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
return cache[style] ||
(cache[style] = style.replace(/\S+/g, "cm-$&"))
}
// Render the DOM representation of the text of a line. Also builds
// up a 'line map', which points at the DOM nodes that represent
// specific stretches of text, and is used by the measuring code.
// The returned object contains the DOM node, this map, and
// information about line-wide styles that were set by the mode.
function buildLineContent(cm, lineView) {
// The padding-right forces the element to have a 'border', which
// is needed on Webkit to be able to get line-level bounding
// rectangles for it (in measureChar).
var content = elt("span", null, null, webkit ? "padding-right: .1px" : null)
var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
col: 0, pos: 0, cm: cm,
trailingSpace: false,
splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}
lineView.measure = {}
// Iterate over the logical lines that make up this visual line.
for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
var line = i ? lineView.rest[i - 1] : lineView.line, order = void 0
builder.pos = 0
builder.addToken = buildToken
// Optionally wire in some hacks into the token-rendering
// algorithm, to deal with browser quirks.
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
{ builder.addToken = buildTokenBadBidi(builder.addToken, order) }
builder.map = []
var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
if (line.styleClasses) {
if (line.styleClasses.bgClass)
{ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "") }
if (line.styleClasses.textClass)
{ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "") }
}
// Ensure at least a single node is present, for measuring.
if (builder.map.length == 0)
{ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) }
// Store the map and a cache object for the current logical line
if (i == 0) {
lineView.measure.map = builder.map
lineView.measure.cache = {}
} else {
;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
}
}
// See issue #2901
if (webkit) {
var last = builder.content.lastChild
if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
{ builder.content.className = "cm-tab-wrap-hack" }
}
signal(cm, "renderLine", cm, lineView.line, builder.pre)
if (builder.pre.className)
{ builder.textClass = joinClasses(builder.pre.className, builder.textClass || "") }
return builder
}
function defaultSpecialCharPlaceholder(ch) {
var token = elt("span", "\u2022", "cm-invalidchar")
token.title = "\\u" + ch.charCodeAt(0).toString(16)
token.setAttribute("aria-label", token.title)
return token
}
// Build up the DOM representation for a single token, and add it to
// the line map. Takes care to render special characters separately.
function buildToken(builder, text, style, startStyle, endStyle, title, css) {
if (!text) { return }
var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
var special = builder.cm.state.specialChars, mustWrap = false
var content
if (!special.test(text)) {
builder.col += text.length
content = document.createTextNode(displayText)
builder.map.push(builder.pos, builder.pos + text.length, content)
if (ie && ie_version < 9) { mustWrap = true }
builder.pos += text.length
} else {
content = document.createDocumentFragment()
var pos = 0
while (true) {
special.lastIndex = pos
var m = special.exec(text)
var skipped = m ? m.index - pos : text.length - pos
if (skipped) {
var txt = document.createTextNode(displayText.slice(pos, pos + skipped))
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])) }
else { content.appendChild(txt) }
builder.map.push(builder.pos, builder.pos + skipped, txt)
builder.col += skipped
builder.pos += skipped
}
if (!m) { break }
pos += skipped + 1
var txt$1 = void 0
if (m[0] == "\t") {
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
txt$1.setAttribute("role", "presentation")
txt$1.setAttribute("cm-text", "\t")
builder.col += tabWidth
} else if (m[0] == "\r" || m[0] == "\n") {
txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
txt$1.setAttribute("cm-text", m[0])
builder.col += 1
} else {
txt$1 = builder.cm.options.specialCharPlaceholder(m[0])
txt$1.setAttribute("cm-text", m[0])
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])) }
else { content.appendChild(txt$1) }
builder.col += 1
}
builder.map.push(builder.pos, builder.pos + 1, txt$1)
builder.pos++
}
}
builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
if (style || startStyle || endStyle || mustWrap || css) {
var fullStyle = style || ""
if (startStyle) { fullStyle += startStyle }
if (endStyle) { fullStyle += endStyle }
var token = elt("span", [content], fullStyle, css)
if (title) { token.title = title }
return builder.content.appendChild(token)
}
builder.content.appendChild(content)
}
function splitSpaces(text, trailingBefore) {
if (text.length > 1 && !/ /.test(text)) { return text }
var spaceBefore = trailingBefore, result = ""
for (var i = 0; i < text.length; i++) {
var ch = text.charAt(i)
if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
{ ch = "\u00a0" }
result += ch
spaceBefore = ch == " "
}
return result
}
// Work around nonsense dimensions being reported for stretches of
// right-to-left text.
function buildTokenBadBidi(inner, order) {
return function (builder, text, style, startStyle, endStyle, title, css) {
style = style ? style + " cm-force-border" : "cm-force-border"
var start = builder.pos, end = start + text.length
for (;;) {
// Find the part that overlaps with the start of this text
var part = void 0
for (var i = 0; i < order.length; i++) {
part = order[i]
if (part.to > start && part.from <= start) { break }
}
if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }
inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)
startStyle = null
text = text.slice(part.to - start)
start = part.to
}
}
}
function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
var widget = !ignoreWidget && marker.widgetNode
if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) }
if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
if (!widget)
{ widget = builder.content.appendChild(document.createElement("span")) }
widget.setAttribute("cm-marker", marker.id)
}
if (widget) {
builder.cm.display.input.setUneditable(widget)
builder.content.appendChild(widget)
}
builder.pos += size
builder.trailingSpace = false
}
// Outputs a number of spans to make up a line, taking highlighting
// and marked text into account.
function insertLineContent(line, builder, styles) {
var spans = line.markedSpans, allText = line.text, at = 0
if (!spans) {
for (var i$1 = 1; i$1 < styles.length; i$1+=2)
{ builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) }
return
}
var len = allText.length, pos = 0, i = 1, text = "", style, css
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed
for (;;) {
if (nextChange == pos) { // Update current marker set
spanStyle = spanEndStyle = spanStartStyle = title = css = ""
collapsed = null; nextChange = Infinity
var foundBookmarks = [], endStyles = void 0
for (var j = 0; j < spans.length; ++j) {
var sp = spans[j], m = sp.marker
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
foundBookmarks.push(m)
} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
if (sp.to != null && sp.to != pos && nextChange > sp.to) {
nextChange = sp.to
spanEndStyle = ""
}
if (m.className) { spanStyle += " " + m.className }
if (m.css) { css = (css ? css + ";" : "") + m.css }
if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle }
if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) }
if (m.title && !title) { title = m.title }
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
{ collapsed = sp }
} else if (sp.from > pos && nextChange > sp.from) {
nextChange = sp.from
}
}
if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
{ if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1] } } }
if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
{ buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } }
if (collapsed && (collapsed.from || 0) == pos) {
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
collapsed.marker, collapsed.from == null)
if (collapsed.to == null) { return }
if (collapsed.to == pos) { collapsed = false }
}
}
if (pos >= len) { break }
var upto = Math.min(len, nextChange)
while (true) {
if (text) {
var end = pos + text.length
if (!collapsed) {
var tokenText = end > upto ? text.slice(0, upto - pos) : text
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css)
}
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
pos = end
spanStartStyle = ""
}
text = allText.slice(at, at = styles[i++])
style = interpretTokenStyle(styles[i++], builder.cm.options)
}
}
}
// These objects are used to represent the visible (currently drawn)
// part of the document. A LineView may correspond to multiple
// logical lines, if those are connected by collapsed ranges.
function LineView(doc, line, lineN) {
// The starting line
this.line = line
// Continuing lines, if any
this.rest = visualLineContinued(line)
// Number of logical lines in this visual line
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
this.node = this.text = null
this.hidden = lineIsHidden(doc, line)
}
// Create a range of LineView objects for the given lines.
function buildViewArray(cm, from, to) {
var array = [], nextPos
for (var pos = from; pos < to; pos = nextPos) {
var view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
nextPos = pos + view.size
array.push(view)
}
return array
}
var operationGroup = null
function pushOperation(op) {
if (operationGroup) {
operationGroup.ops.push(op)
} else {
op.ownsGroup = operationGroup = {
ops: [op],
delayedCallbacks: []
}
}
}
function fireCallbacksForOps(group) {
// Calls delayed callbacks and cursorActivity handlers until no
// new ones appear
var callbacks = group.delayedCallbacks, i = 0
do {
for (; i < callbacks.length; i++)
{ callbacks[i].call(null) }
for (var j = 0; j < group.ops.length; j++) {
var op = group.ops[j]
if (op.cursorActivityHandlers)
{ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
{ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } }
}
} while (i < callbacks.length)
}
function finishOperation(op, endCb) {
var group = op.ownsGroup
if (!group) { return }
try { fireCallbacksForOps(group) }
finally {
operationGroup = null
endCb(group)
}
}
var orphanDelayedCallbacks = null
// Often, we want to signal events at a point where we are in the
// middle of some work, but don't want the handler to start calling
// other methods on the editor, which might be in an inconsistent
// state or simply not expect any other events to happen.
// signalLater looks whether there are any handlers, and schedules
// them to be executed when the last operation ends, or, if no
// operation is active, when a timeout fires.
function signalLater(emitter, type /*, values...*/) {
var arr = getHandlers(emitter, type, false)
if (!arr.length) { return }
var args = Array.prototype.slice.call(arguments, 2), list
if (operationGroup) {
list = operationGroup.delayedCallbacks
} else if (orphanDelayedCallbacks) {
list = orphanDelayedCallbacks
} else {
list = orphanDelayedCallbacks = []
setTimeout(fireOrphanDelayed, 0)
}
var loop = function ( i ) {
list.push(function () { return arr[i].apply(null, args); })
};
for (var i = 0; i < arr.length; ++i)
loop( i );
}
function fireOrphanDelayed() {
var delayed = orphanDelayedCallbacks
orphanDelayedCallbacks = null
for (var i = 0; i < delayed.length; ++i) { delayed[i]() }
}
// When an aspect of a line changes, a string is added to
// lineView.changes. This updates the relevant part of the line's
// DOM structure.
function updateLineForChanges(cm, lineView, lineN, dims) {
for (var j = 0; j < lineView.changes.length; j++) {
var type = lineView.changes[j]
if (type == "text") { updateLineText(cm, lineView) }
else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims) }
else if (type == "class") { updateLineClasses(lineView) }
else if (type == "widget") { updateLineWidgets(cm, lineView, dims) }
}
lineView.changes = null
}
// Lines with gutter elements, widgets or a background class need to
// be wrapped, and have the extra elements added to the wrapper div
function ensureLineWrapped(lineView) {
if (lineView.node == lineView.text) {
lineView.node = elt("div", null, null, "position: relative")
if (lineView.text.parentNode)
{ lineView.text.parentNode.replaceChild(lineView.node, lineView.text) }
lineView.node.appendChild(lineView.text)
if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 }
}
return lineView.node
}
function updateLineBackground(lineView) {
var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
if (cls) { cls += " CodeMirror-linebackground" }
if (lineView.background) {
if (cls) { lineView.background.className = cls }
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
} else if (cls) {
var wrap = ensureLineWrapped(lineView)
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
}
}
// Wrapper around buildLineContent which will reuse the structure
// in display.externalMeasured when possible.
function getLineContent(cm, lineView) {
var ext = cm.display.externalMeasured
if (ext && ext.line == lineView.line) {
cm.display.externalMeasured = null
lineView.measure = ext.measure
return ext.built
}
return buildLineContent(cm, lineView)
}
// Redraw the line's text. Interacts with the background and text
// classes because the mode may output tokens that influence these
// classes.
function updateLineText(cm, lineView) {
var cls = lineView.text.className
var built = getLineContent(cm, lineView)
if (lineView.text == lineView.node) { lineView.node = built.pre }
lineView.text.parentNode.replaceChild(built.pre, lineView.text)
lineView.text = built.pre
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
lineView.bgClass = built.bgClass
lineView.textClass = built.textClass
updateLineClasses(lineView)
} else if (cls) {
lineView.text.className = cls
}
}
function updateLineClasses(lineView) {
updateLineBackground(lineView)
if (lineView.line.wrapClass)
{ ensureLineWrapped(lineView).className = lineView.line.wrapClass }
else if (lineView.node != lineView.text)
{ lineView.node.className = "" }
var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
lineView.text.className = textClass || ""
}
function updateLineGutter(cm, lineView, lineN, dims) {
if (lineView.gutter) {
lineView.node.removeChild(lineView.gutter)
lineView.gutter = null
}
if (lineView.gutterBackground) {
lineView.node.removeChild(lineView.gutterBackground)
lineView.gutterBackground = null
}
if (lineView.line.gutterClass) {
var wrap = ensureLineWrapped(lineView)
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"))
wrap.insertBefore(lineView.gutterBackground, lineView.text)
}
var markers = lineView.line.gutterMarkers
if (cm.options.lineNumbers || markers) {
var wrap$1 = ensureLineWrapped(lineView)
var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"))
cm.display.input.setUneditable(gutterWrap)
wrap$1.insertBefore(gutterWrap, lineView.text)
if (lineView.line.gutterClass)
{ gutterWrap.className += " " + lineView.line.gutterClass }
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
{ lineView.lineNumber = gutterWrap.appendChild(
elt("div", lineNumberFor(cm.options, lineN),
"CodeMirror-linenumber CodeMirror-gutter-elt",
("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))) }
if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]
if (found)
{ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))) }
} }
}
}
function updateLineWidgets(cm, lineView, dims) {
if (lineView.alignable) { lineView.alignable = null }
for (var node = lineView.node.firstChild, next = void 0; node; node = next) {
next = node.nextSibling
if (node.className == "CodeMirror-linewidget")
{ lineView.node.removeChild(node) }
}
insertLineWidgets(cm, lineView, dims)
}
// Build a line's DOM representation from scratch
function buildLineElement(cm, lineView, lineN, dims) {
var built = getLineContent(cm, lineView)
lineView.text = lineView.node = built.pre
if (built.bgClass) { lineView.bgClass = built.bgClass }
if (built.textClass) { lineView.textClass = built.textClass }
updateLineClasses(lineView)
updateLineGutter(cm, lineView, lineN, dims)
insertLineWidgets(cm, lineView, dims)
return lineView.node
}
// A lineView may contain multiple logical lines (when merged by
// collapsed spans). The widgets for all of them need to be drawn.
function insertLineWidgets(cm, lineView, dims) {
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
{ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } }
}
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
if (!line.widgets) { return }
var wrap = ensureLineWrapped(lineView)
for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget")
if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true") }
positionLineWidget(widget, node, lineView, dims)
cm.display.input.setUneditable(node)
if (allowAbove && widget.above)
{ wrap.insertBefore(node, lineView.gutter || lineView.text) }
else
{ wrap.appendChild(node) }
signalLater(widget, "redraw")
}
}
function positionLineWidget(widget, node, lineView, dims) {
if (widget.noHScroll) {
;(lineView.alignable || (lineView.alignable = [])).push(node)
var width = dims.wrapperWidth
node.style.left = dims.fixedPos + "px"
if (!widget.coverGutter) {
width -= dims.gutterTotalWidth
node.style.paddingLeft = dims.gutterTotalWidth + "px"
}
node.style.width = width + "px"
}
if (widget.coverGutter) {
node.style.zIndex = 5
node.style.position = "relative"
if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px" }
}
}
function widgetHeight(widget) {
if (widget.height != null) { return widget.height }
var cm = widget.doc.cm
if (!cm) { return 0 }
if (!contains(document.body, widget.node)) {
var parentStyle = "position: relative;"
if (widget.coverGutter)
{ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;" }
if (widget.noHScroll)
{ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;" }
removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
}
return widget.height = widget.node.parentNode.offsetHeight
}
// Return true when the given mouse event happened in a widget
function eventInWidget(display, e) {
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
(n.parentNode == display.sizer && n != display.mover))
{ return true }
}
}
// POSITION MEASUREMENT
function paddingTop(display) {return display.lineSpace.offsetTop}
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
function paddingH(display) {
if (display.cachedPaddingH) { return display.cachedPaddingH }
var e = removeChildrenAndAdd(display.measure, elt("pre", "x"))
var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data }
return data
}
function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
function displayWidth(cm) {
return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
}
function displayHeight(cm) {
return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
}
// Ensure the lineView.wrapping.heights array is populated. This is
// an array of bottom offsets for the lines that make up a drawn
// line. When lineWrapping is on, there might be more than one
// height.
function ensureLineHeights(cm, lineView, rect) {
var wrapping = cm.options.lineWrapping
var curWidth = wrapping && displayWidth(cm)
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
var heights = lineView.measure.heights = []
if (wrapping) {
lineView.measure.width = curWidth
var rects = lineView.text.firstChild.getClientRects()
for (var i = 0; i < rects.length - 1; i++) {
var cur = rects[i], next = rects[i + 1]
if (Math.abs(cur.bottom - next.bottom) > 2)
{ heights.push((cur.bottom + next.top) / 2 - rect.top) }
}
}
heights.push(rect.bottom - rect.top)
}
}
// Find a line map (mapping character offsets to text nodes) and a
// measurement cache for the given line number. (A line view might
// contain multiple lines when collapsed ranges are present.)
function mapFromLineView(lineView, line, lineN) {
if (lineView.line == line)
{ return {map: lineView.measure.map, cache: lineView.measure.cache} }
for (var i = 0; i < lineView.rest.length; i++)
{ if (lineView.rest[i] == line)
{ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
{ if (lineNo(lineView.rest[i$1]) > lineN)
{ return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
}
// Render a line into the hidden node display.externalMeasured. Used
// when measurement is needed for a line that's not in the viewport.
function updateExternalMeasurement(cm, line) {
line = visualLine(line)
var lineN = lineNo(line)
var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
view.lineN = lineN
var built = view.built = buildLineContent(cm, view)
view.text = built.pre
removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
return view
}
// Get a {top, bottom, left, right} box (in line-local coordinates)
// for a given character.
function measureChar(cm, line, ch, bias) {
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
}
// Find a line view that corresponds to the given line number.
function findViewForLine(cm, lineN) {
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
{ return cm.display.view[findViewIndex(cm, lineN)] }
var ext = cm.display.externalMeasured
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
{ return ext }
}
// Measurement can be split in two steps, the set-up work that
// applies to the whole line, and the measurement of the actual
// character. Functions like coordsChar, that need to do a lot of
// measurements in a row, can thus ensure that the set-up work is
// only done once.
function prepareMeasureForLine(cm, line) {
var lineN = lineNo(line)
var view = findViewForLine(cm, lineN)
if (view && !view.text) {
view = null
} else if (view && view.changes) {
updateLineForChanges(cm, view, lineN, getDimensions(cm))
cm.curOp.forceUpdate = true
}
if (!view)
{ view = updateExternalMeasurement(cm, line) }
var info = mapFromLineView(view, line, lineN)
return {
line: line, view: view, rect: null,
map: info.map, cache: info.cache, before: info.before,
hasHeights: false
}
}
// Given a prepared measurement object, measures the position of an
// actual character (or fetches it from the cache).
function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
if (prepared.before) { ch = -1 }
var key = ch + (bias || ""), found
if (prepared.cache.hasOwnProperty(key)) {
found = prepared.cache[key]
} else {
if (!prepared.rect)
{ prepared.rect = prepared.view.text.getBoundingClientRect() }
if (!prepared.hasHeights) {
ensureLineHeights(cm, prepared.view, prepared.rect)
prepared.hasHeights = true
}
found = measureCharInner(cm, prepared, ch, bias)
if (!found.bogus) { prepared.cache[key] = found }
}
return {left: found.left, right: found.right,
top: varHeight ? found.rtop : found.top,
bottom: varHeight ? found.rbottom : found.bottom}
}
var nullRect = {left: 0, right: 0, top: 0, bottom: 0}
function nodeAndOffsetInLineMap(map, ch, bias) {
var node, start, end, collapse, mStart, mEnd
// First, search the line map for the text node corresponding to,
// or closest to, the target character.
for (var i = 0; i < map.length; i += 3) {
mStart = map[i]
mEnd = map[i + 1]
if (ch < mStart) {
start = 0; end = 1
collapse = "left"
} else if (ch < mEnd) {
start = ch - mStart
end = start + 1
} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
end = mEnd - mStart
start = end - 1
if (ch >= mEnd) { collapse = "right" }
}
if (start != null) {
node = map[i + 2]
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
{ collapse = bias }
if (bias == "left" && start == 0)
{ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
node = map[(i -= 3) + 2]
collapse = "left"
} }
if (bias == "right" && start == mEnd - mStart)
{ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
node = map[(i += 3) + 2]
collapse = "right"
} }
break
}
}
return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
}
function getUsefulRect(rects, bias) {
var rect = nullRect
if (bias == "left") { for (var i = 0; i < rects.length; i++) {
if ((rect = rects[i]).left != rect.right) { break }
} } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
if ((rect = rects[i$1]).left != rect.right) { break }
} }
return rect
}
function measureCharInner(cm, prepared, ch, bias) {
var place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
var node = place.node, start = place.start, end = place.end, collapse = place.collapse
var rect
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start }
while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end }
if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
{ rect = node.parentNode.getBoundingClientRect() }
else
{ rect = getUsefulRect(range(node, start, end).getClientRects(), bias) }
if (rect.left || rect.right || start == 0) { break }
end = start
start = start - 1
collapse = "right"
}
if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) }
} else { // If it is a widget, simply get the box for the whole widget.
if (start > 0) { collapse = bias = "right" }
var rects
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
{ rect = rects[bias == "right" ? rects.length - 1 : 0] }
else
{ rect = node.getBoundingClientRect() }
}
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
var rSpan = node.parentNode.getClientRects()[0]
if (rSpan)
{ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} }
else
{ rect = nullRect }
}
var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
var mid = (rtop + rbot) / 2
var heights = prepared.view.measure.heights
var i = 0
for (; i < heights.length - 1; i++)
{ if (mid < heights[i]) { break } }
var top = i ? heights[i - 1] : 0, bot = heights[i]
var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
top: top, bottom: bot}
if (!rect.left && !rect.right) { result.bogus = true }
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
return result
}
// Work around problem with bounding client rects on ranges being
// returned incorrectly when zoomed on IE10 and below.
function maybeUpdateRectForZooming(measure, rect) {
if (!window.screen || screen.logicalXDPI == null ||
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
{ return rect }
var scaleX = screen.logicalXDPI / screen.deviceXDPI
var scaleY = screen.logicalYDPI / screen.deviceYDPI
return {left: rect.left * scaleX, right: rect.right * scaleX,
top: rect.top * scaleY, bottom: rect.bottom * scaleY}
}
function clearLineMeasurementCacheFor(lineView) {
if (lineView.measure) {
lineView.measure.cache = {}
lineView.measure.heights = null
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
{ lineView.measure.caches[i] = {} } }
}
}
function clearLineMeasurementCache(cm) {
cm.display.externalMeasure = null
removeChildren(cm.display.lineMeasure)
for (var i = 0; i < cm.display.view.length; i++)
{ clearLineMeasurementCacheFor(cm.display.view[i]) }
}
function clearCaches(cm) {
clearLineMeasurementCache(cm)
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true }
cm.display.lineNumChars = null
}
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft }
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop }
// Converts a {top, bottom, left, right} box from line-local
// coordinates into another coordinate system. Context may be one of
// "line", "div" (display.lineDiv), "local"./null (editor), "window",
// or "page".
function intoCoordSystem(cm, lineObj, rect, context) {
if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) {
var size = widgetHeight(lineObj.widgets[i])
rect.top += size; rect.bottom += size
} } }
if (context == "line") { return rect }
if (!context) { context = "local" }
var yOff = heightAtLine(lineObj)
if (context == "local") { yOff += paddingTop(cm.display) }
else { yOff -= cm.display.viewOffset }
if (context == "page" || context == "window") {
var lOff = cm.display.lineSpace.getBoundingClientRect()
yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
rect.left += xOff; rect.right += xOff
}
rect.top += yOff; rect.bottom += yOff
return rect
}
// Coverts a box from "div" coords to another coordinate system.
// Context may be "window", "page", "div", or "local"./null.
function fromCoordSystem(cm, coords, context) {
if (context == "div") { return coords }
var left = coords.left, top = coords.top
// First move into "page" coordinate system
if (context == "page") {
left -= pageScrollX()
top -= pageScrollY()
} else if (context == "local" || !context) {
var localBox = cm.display.sizer.getBoundingClientRect()
left += localBox.left
top += localBox.top
}
var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
}
function charCoords(cm, pos, context, lineObj, bias) {
if (!lineObj) { lineObj = getLine(cm.doc, pos.line) }
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
}
// Returns a box for a given cursor position, which may have an
// 'other' property containing the position of the secondary cursor
// on a bidi boundary.
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
lineObj = lineObj || getLine(cm.doc, pos.line)
if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
function get(ch, right) {
var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
if (right) { m.left = m.right; } else { m.right = m.left }
return intoCoordSystem(cm, lineObj, m, context)
}
function getBidi(ch, partPos) {
var part = order[partPos], right = part.level % 2
if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
part = order[--partPos]
ch = bidiRight(part) - (part.level % 2 ? 0 : 1)
right = true
} else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
part = order[++partPos]
ch = bidiLeft(part) - part.level % 2
right = false
}
if (right && ch == part.to && ch > part.from) { return get(ch - 1) }
return get(ch, right)
}
var order = getOrder(lineObj), ch = pos.ch
if (!order) { return get(ch) }
var partPos = getBidiPartAt(order, ch)
var val = getBidi(ch, partPos)
if (bidiOther != null) { val.other = getBidi(ch, bidiOther) }
return val
}
// Used to cheaply estimate the coordinates for a position. Used for
// intermediate scroll updates.
function estimateCoords(cm, pos) {
var left = 0
pos = clipPos(cm.doc, pos)
if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch }
var lineObj = getLine(cm.doc, pos.line)
var top = heightAtLine(lineObj) + paddingTop(cm.display)
return {left: left, right: left, top: top, bottom: top + lineObj.height}
}
// Positions returned by coordsChar contain some extra information.
// xRel is the relative x position of the input coordinates compared
// to the found position (so xRel > 0 means the coordinates are to
// the right of the character position, for example). When outside
// is true, that means the coordinates lie outside the line's
// vertical range.
function PosWithInfo(line, ch, outside, xRel) {
var pos = Pos(line, ch)
pos.xRel = xRel
if (outside) { pos.outside = true }
return pos
}
// Compute the character position closest to the given coordinates.
// Input must be lineSpace-local ("div" coordinate system).
function coordsChar(cm, x, y) {
var doc = cm.doc
y += cm.display.viewOffset
if (y < 0) { return PosWithInfo(doc.first, 0, true, -1) }
var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
if (lineN > last)
{ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1) }
if (x < 0) { x = 0 }
var lineObj = getLine(doc, lineN)
for (;;) {
var found = coordsCharInner(cm, lineObj, lineN, x, y)
var merged = collapsedSpanAtEnd(lineObj)
var mergedPos = merged && merged.find(0, true)
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
{ lineN = lineNo(lineObj = mergedPos.to.line) }
else
{ return found }
}
}
function coordsCharInner(cm, lineObj, lineNo, x, y) {
var innerOff = y - heightAtLine(lineObj)
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth
var preparedMeasure = prepareMeasureForLine(cm, lineObj)
function getX(ch) {
var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure)
wrongLine = true
if (innerOff > sp.bottom) { return sp.left - adjust }
else if (innerOff < sp.top) { return sp.left + adjust }
else { wrongLine = false }
return sp.left
}
var bidi = getOrder(lineObj), dist = lineObj.text.length
var from = lineLeft(lineObj), to = lineRight(lineObj)
var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine
if (x > toX) { return PosWithInfo(lineNo, to, toOutside, 1) }
// Do a binary search between these bounds.
for (;;) {
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
var ch = x < fromX || x - fromX <= toX - x ? from : to
var outside = ch == from ? fromOutside : toOutside
var xDiff = x - (ch == from ? fromX : toX)
// This is a kludge to handle the case where the coordinates
// are after a line-wrapped line. We should replace it with a
// more general handling of cursor positions around line
// breaks. (Issue #4078)
if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 &&
ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) {
var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right")
if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) {
outside = false
ch++
xDiff = x - charSize.right
}
}
while (isExtendingChar(lineObj.text.charAt(ch))) { ++ch }
var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0)
return pos
}
var step = Math.ceil(dist / 2), middle = from + step
if (bidi) {
middle = from
for (var i = 0; i < step; ++i) { middle = moveVisually(lineObj, middle, 1) }
}
var middleX = getX(middle)
if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) { toX += 1000; } dist = step}
else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step}
}
}
var measureText
// Compute the default text height.
function textHeight(display) {
if (display.cachedTextHeight != null) { return display.cachedTextHeight }
if (measureText == null) {
measureText = elt("pre")
// Measure a bunch of lines, for browsers that compute
// fractional heights.
for (var i = 0; i < 49; ++i) {
measureText.appendChild(document.createTextNode("x"))
measureText.appendChild(elt("br"))
}
measureText.appendChild(document.createTextNode("x"))
}
removeChildrenAndAdd(display.measure, measureText)
var height = measureText.offsetHeight / 50
if (height > 3) { display.cachedTextHeight = height }
removeChildren(display.measure)
return height || 1
}
// Compute the default character width.
function charWidth(display) {
if (display.cachedCharWidth != null) { return display.cachedCharWidth }
var anchor = elt("span", "xxxxxxxxxx")
var pre = elt("pre", [anchor])
removeChildrenAndAdd(display.measure, pre)
var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
if (width > 2) { display.cachedCharWidth = width }
return width || 10
}
// Do a bulk-read of the DOM positions and sizes needed to draw the
// view, so that we don't interleave reading and writing to the DOM.
function getDimensions(cm) {
var d = cm.display, left = {}, width = {}
var gutterLeft = d.gutters.clientLeft
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft
width[cm.options.gutters[i]] = n.clientWidth
}
return {fixedPos: compensateForHScroll(d),
gutterTotalWidth: d.gutters.offsetWidth,
gutterLeft: left,
gutterWidth: width,
wrapperWidth: d.wrapper.clientWidth}
}
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
// but using getBoundingClientRect to get a sub-pixel-accurate
// result.
function compensateForHScroll(display) {
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
}
// Returns a function that estimates the height of a line, to use as
// first approximation until the line becomes visible (and is thus
// properly measurable).
function estimateHeight(cm) {
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
return function (line) {
if (lineIsHidden(cm.doc, line)) { return 0 }
var widgetsHeight = 0
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height }
} }
if (wrapping)
{ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
else
{ return widgetsHeight + th }
}
}
function estimateLineHeights(cm) {
var doc = cm.doc, est = estimateHeight(cm)
doc.iter(function (line) {
var estHeight = est(line)
if (estHeight != line.height) { updateLineHeight(line, estHeight) }
})
}
// Given a mouse event, find the corresponding position. If liberal
// is false, it checks whether a gutter or scrollbar was clicked,
// and returns null if it was. forRect is used by rectangular
// selections, and tries to estimate a character position even for
// coordinates beyond the right of the text.
function posFromMouse(cm, e, liberal, forRect) {
var display = cm.display
if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
var x, y, space = display.lineSpace.getBoundingClientRect()
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
try { x = e.clientX - space.left; y = e.clientY - space.top }
catch (e) { return null }
var coords = coordsChar(cm, x, y), line
if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
}
return coords
}
// Find the view element corresponding to a given line. Return null
// when the line isn't visible.
function findViewIndex(cm, n) {
if (n >= cm.display.viewTo) { return null }
n -= cm.display.viewFrom
if (n < 0) { return null }
var view = cm.display.view
for (var i = 0; i < view.length; i++) {
n -= view[i].size
if (n < 0) { return i }
}
}
function updateSelection(cm) {
cm.display.input.showSelection(cm.display.input.prepareSelection())
}
function prepareSelection(cm, primary) {
var doc = cm.doc, result = {}
var curFragment = result.cursors = document.createDocumentFragment()
var selFragment = result.selection = document.createDocumentFragment()
for (var i = 0; i < doc.sel.ranges.length; i++) {
if (primary === false && i == doc.sel.primIndex) { continue }
var range = doc.sel.ranges[i]
if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
var collapsed = range.empty()
if (collapsed || cm.options.showCursorWhenSelecting)
{ drawSelectionCursor(cm, range.head, curFragment) }
if (!collapsed)
{ drawSelectionRange(cm, range, selFragment) }
}
return result
}
// Draws a cursor for the given range
function drawSelectionCursor(cm, head, output) {
var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
cursor.style.left = pos.left + "px"
cursor.style.top = pos.top + "px"
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
if (pos.other) {
// Secondary cursor, shown when on a 'jump' in bi-directional text
var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
otherCursor.style.display = ""
otherCursor.style.left = pos.other.left + "px"
otherCursor.style.top = pos.other.top + "px"
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
}
}
// Draws the given range as a highlighted selection
function drawSelectionRange(cm, range, output) {
var display = cm.display, doc = cm.doc
var fragment = document.createDocumentFragment()
var padding = paddingH(cm.display), leftSide = padding.left
var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
function add(left, top, width, bottom) {
if (top < 0) { top = 0 }
top = Math.round(top)
bottom = Math.round(bottom)
fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")))
}
function drawForLine(line, fromArg, toArg) {
var lineObj = getLine(doc, line)
var lineLen = lineObj.text.length
var start, end
function coords(ch, bias) {
return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
}
iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) {
var leftPos = coords(from, "left"), rightPos, left, right
if (from == to) {
rightPos = leftPos
left = right = leftPos.left
} else {
rightPos = coords(to - 1, "right")
if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp }
left = leftPos.left
right = rightPos.right
}
if (fromArg == null && from == 0) { left = leftSide }
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
add(left, leftPos.top, null, leftPos.bottom)
left = leftSide
if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top) }
}
if (toArg == null && to == lineLen) { right = rightSide }
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
{ start = leftPos }
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
{ end = rightPos }
if (left < leftSide + 1) { left = leftSide }
add(left, rightPos.top, right - left, rightPos.bottom)
})
return {start: start, end: end}
}
var sFrom = range.from(), sTo = range.to()
if (sFrom.line == sTo.line) {
drawForLine(sFrom.line, sFrom.ch, sTo.ch)
} else {
var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
var singleVLine = visualLine(fromLine) == visualLine(toLine)
var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
if (singleVLine) {
if (leftEnd.top < rightStart.top - 2) {
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
} else {
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
}
}
if (leftEnd.bottom < rightStart.top)
{ add(leftSide, leftEnd.bottom, null, rightStart.top) }
}
output.appendChild(fragment)
}
// Cursor-blinking
function restartBlink(cm) {
if (!cm.state.focused) { return }
var display = cm.display
clearInterval(display.blinker)
var on = true
display.cursorDiv.style.visibility = ""
if (cm.options.cursorBlinkRate > 0)
{ display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
cm.options.cursorBlinkRate) }
else if (cm.options.cursorBlinkRate < 0)
{ display.cursorDiv.style.visibility = "hidden" }
}
function ensureFocus(cm) {
if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
}
function delayBlurEvent(cm) {
cm.state.delayingBlurEvent = true
setTimeout(function () { if (cm.state.delayingBlurEvent) {
cm.state.delayingBlurEvent = false
onBlur(cm)
} }, 100)
}
function onFocus(cm, e) {
if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false }
if (cm.options.readOnly == "nocursor") { return }
if (!cm.state.focused) {
signal(cm, "focus", cm, e)
cm.state.focused = true
addClass(cm.display.wrapper, "CodeMirror-focused")
// This test prevents this from firing when a context
// menu is closed (since the input reset would kill the
// select-all detection hack)
if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
cm.display.input.reset()
if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730
}
cm.display.input.receivedFocus()
}
restartBlink(cm)
}
function onBlur(cm, e) {
if (cm.state.delayingBlurEvent) { return }
if (cm.state.focused) {
signal(cm, "blur", cm, e)
cm.state.focused = false
rmClass(cm.display.wrapper, "CodeMirror-focused")
}
clearInterval(cm.display.blinker)
setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150)
}
// Re-align line numbers and gutter marks to compensate for
// horizontal scrolling.
function alignHorizontally(cm) {
var display = cm.display, view = display.view
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
var gutterW = display.gutters.offsetWidth, left = comp + "px"
for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
if (cm.options.fixedGutter) {
if (view[i].gutter)
{ view[i].gutter.style.left = left }
if (view[i].gutterBackground)
{ view[i].gutterBackground.style.left = left }
}
var align = view[i].alignable
if (align) { for (var j = 0; j < align.length; j++)
{ align[j].style.left = left } }
} }
if (cm.options.fixedGutter)
{ display.gutters.style.left = (comp + gutterW) + "px" }
}
// Used to ensure that the line number gutter is still the right
// size for the current document size. Returns true when an update
// is needed.
function maybeUpdateLineNumberWidth(cm) {
if (!cm.options.lineNumbers) { return false }
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
if (last.length != display.lineNumChars) {
var test = display.measure.appendChild(elt("div", [elt("div", last)],
"CodeMirror-linenumber CodeMirror-gutter-elt"))
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
display.lineGutter.style.width = ""
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
display.lineNumWidth = display.lineNumInnerWidth + padding
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
display.lineGutter.style.width = display.lineNumWidth + "px"
updateGutterSpace(cm)
return true
}
return false
}
// Read the actual heights of the rendered lines, and update their
// stored heights to match.
function updateHeightsInViewport(cm) {
var display = cm.display
var prevBottom = display.lineDiv.offsetTop
for (var i = 0; i < display.view.length; i++) {
var cur = display.view[i], height = void 0
if (cur.hidden) { continue }
if (ie && ie_version < 8) {
var bot = cur.node.offsetTop + cur.node.offsetHeight
height = bot - prevBottom
prevBottom = bot
} else {
var box = cur.node.getBoundingClientRect()
height = box.bottom - box.top
}
var diff = cur.line.height - height
if (height < 2) { height = textHeight(display) }
if (diff > .001 || diff < -.001) {
updateLineHeight(cur.line, height)
updateWidgetHeight(cur.line)
if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
{ updateWidgetHeight(cur.rest[j]) } }
}
}
}
// Read and store the height of line widgets associated with the
// given line.
function updateWidgetHeight(line) {
if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i)
{ line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight } }
}
// Compute the lines that are visible in a given viewport (defaults
// the the current scroll position). viewport may contain top,
// height, and ensure (see op.scrollToPos) properties.
function visibleLines(display, doc, viewport) {
var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
top = Math.floor(top - paddingTop(display))
var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
// forces those lines into the viewport (if possible).
if (viewport && viewport.ensure) {
var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
if (ensureFrom < from) {
from = ensureFrom
to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
to = ensureTo
}
}
return {from: from, to: Math.max(to, from + 1)}
}
// Sync the scrollable area and scrollbars, ensure the viewport
// covers the visible area.
function setScrollTop(cm, val) {
if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
cm.doc.scrollTop = val
if (!gecko) { updateDisplaySimple(cm, {top: val}) }
if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val }
cm.display.scrollbars.setScrollTop(val)
if (gecko) { updateDisplaySimple(cm) }
startWorker(cm, 100)
}
// Sync scroller and scrollbar, ensure the gutter elements are
// aligned.
function setScrollLeft(cm, val, isScroller) {
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) { return }
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)
cm.doc.scrollLeft = val
alignHorizontally(cm)
if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val }
cm.display.scrollbars.setScrollLeft(val)
}
// Since the delta values reported on mouse wheel events are
// unstandardized between browsers and even browser versions, and
// generally horribly unpredictable, this code starts by measuring
// the scroll effect that the first few mouse wheel events have,
// and, from that, detects the way it can convert deltas to pixel
// offsets afterwards.
//
// The reason we want to know the amount a wheel event will scroll
// is that it gives us a chance to update the display before the
// actual scrolling happens, reducing flickering.
var wheelSamples = 0;
var wheelPixelsPerUnit = null;
// Fill in a browser-detected starting value on browsers where we
// know one. These don't have to be accurate -- the result of them
// being wrong would just be a slight flicker on the first wheel
// scroll (if it is large enough).
if (ie) { wheelPixelsPerUnit = -.53 }
else if (gecko) { wheelPixelsPerUnit = 15 }
else if (chrome) { wheelPixelsPerUnit = -.7 }
else if (safari) { wheelPixelsPerUnit = -1/3 }
function wheelEventDelta(e) {
var dx = e.wheelDeltaX, dy = e.wheelDeltaY
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail }
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail }
else if (dy == null) { dy = e.wheelDelta }
return {x: dx, y: dy}
}
function wheelEventPixels(e) {
var delta = wheelEventDelta(e)
delta.x *= wheelPixelsPerUnit
delta.y *= wheelPixelsPerUnit
return delta
}
function onScrollWheel(cm, e) {
var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
var display = cm.display, scroll = display.scroller
// Quit if there's nothing to scroll here
var canScrollX = scroll.scrollWidth > scroll.clientWidth
var canScrollY = scroll.scrollHeight > scroll.clientHeight
if (!(dx && canScrollX || dy && canScrollY)) { return }
// Webkit browsers on OS X abort momentum scrolls when the target
// of the scroll event is removed from the scrollable element.
// This hack (see related code in patchDisplay) makes sure the
// element is kept around.
if (dy && mac && webkit) {
outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
for (var i = 0; i < view.length; i++) {
if (view[i].node == cur) {
cm.display.currentWheelTarget = cur
break outer
}
}
}
}
// On some browsers, horizontal scrolling will cause redraws to
// happen before the gutter has been realigned, causing it to
// wriggle around in a most unseemly way. When we have an
// estimated pixels/delta value, we just handle horizontal
// scrolling entirely here. It'll be slightly off from native, but
// better than glitching out.
if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
if (dy && canScrollY)
{ setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))) }
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)))
// Only prevent default scrolling if vertical scrolling is
// actually possible. Otherwise, it causes vertical scroll
// jitter on OSX trackpads when deltaX is small and deltaY
// is large (issue #3579)
if (!dy || (dy && canScrollY))
{ e_preventDefault(e) }
display.wheelStartX = null // Abort measurement, if in progress
return
}
// 'Project' the visible viewport to cover the area that is being
// scrolled into view (if we know enough to estimate it).
if (dy && wheelPixelsPerUnit != null) {
var pixels = dy * wheelPixelsPerUnit
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
if (pixels < 0) { top = Math.max(0, top + pixels - 50) }
else { bot = Math.min(cm.doc.height, bot + pixels + 50) }
updateDisplaySimple(cm, {top: top, bottom: bot})
}
if (wheelSamples < 20) {
if (display.wheelStartX == null) {
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
display.wheelDX = dx; display.wheelDY = dy
setTimeout(function () {
if (display.wheelStartX == null) { return }
var movedX = scroll.scrollLeft - display.wheelStartX
var movedY = scroll.scrollTop - display.wheelStartY
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
(movedX && display.wheelDX && movedX / display.wheelDX)
display.wheelStartX = display.wheelStartY = null
if (!sample) { return }
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
++wheelSamples
}, 200)
} else {
display.wheelDX += dx; display.wheelDY += dy
}
}
}
// SCROLLBARS
// Prepare DOM reads needed to update the scrollbars. Done in one
// shot to minimize update/measure roundtrips.
function measureForScrollbars(cm) {
var d = cm.display, gutterW = d.gutters.offsetWidth
var docH = Math.round(cm.doc.height + paddingVert(cm.display))
return {
clientHeight: d.scroller.clientHeight,
viewHeight: d.wrapper.clientHeight,
scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
viewWidth: d.wrapper.clientWidth,
barLeft: cm.options.fixedGutter ? gutterW : 0,
docHeight: docH,
scrollHeight: docH + scrollGap(cm) + d.barHeight,
nativeBarWidth: d.nativeBarWidth,
gutterWidth: gutterW
}
}
function NativeScrollbars(place, scroll, cm) {
this.cm = cm
var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
place(vert); place(horiz)
on(vert, "scroll", function () {
if (vert.clientHeight) { scroll(vert.scrollTop, "vertical") }
})
on(horiz, "scroll", function () {
if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal") }
})
this.checkedZeroWidth = false
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px" }
}
NativeScrollbars.prototype = copyObj({
update: function(measure) {
var needsH = measure.scrollWidth > measure.clientWidth + 1
var needsV = measure.scrollHeight > measure.clientHeight + 1
var sWidth = measure.nativeBarWidth
if (needsV) {
this.vert.style.display = "block"
this.vert.style.bottom = needsH ? sWidth + "px" : "0"
var totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
// A bug in IE8 can cause this value to be negative, so guard it.
this.vert.firstChild.style.height =
Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
} else {
this.vert.style.display = ""
this.vert.firstChild.style.height = "0"
}
if (needsH) {
this.horiz.style.display = "block"
this.horiz.style.right = needsV ? sWidth + "px" : "0"
this.horiz.style.left = measure.barLeft + "px"
var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
this.horiz.firstChild.style.width =
(measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
} else {
this.horiz.style.display = ""
this.horiz.firstChild.style.width = "0"
}
if (!this.checkedZeroWidth && measure.clientHeight > 0) {
if (sWidth == 0) { this.zeroWidthHack() }
this.checkedZeroWidth = true
}
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
},
setScrollLeft: function(pos) {
if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos }
if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz) }
},
setScrollTop: function(pos) {
if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos }
if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert) }
},
zeroWidthHack: function() {
var w = mac && !mac_geMountainLion ? "12px" : "18px"
this.horiz.style.height = this.vert.style.width = w
this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
this.disableHoriz = new Delayed
this.disableVert = new Delayed
},
enableZeroWidthBar: function(bar, delay) {
bar.style.pointerEvents = "auto"
function maybeDisable() {
// To find out whether the scrollbar is still visible, we
// check whether the element under the pixel in the bottom
// left corner of the scrollbar box is the scrollbar box
// itself (when the bar is still visible) or its filler child
// (when the bar is hidden). If it is still visible, we keep
// it enabled, if it's hidden, we disable pointer events.
var box = bar.getBoundingClientRect()
var elt = document.elementFromPoint(box.left + 1, box.bottom - 1)
if (elt != bar) { bar.style.pointerEvents = "none" }
else { delay.set(1000, maybeDisable) }
}
delay.set(1000, maybeDisable)
},
clear: function() {
var parent = this.horiz.parentNode
parent.removeChild(this.horiz)
parent.removeChild(this.vert)
}
}, NativeScrollbars.prototype)
function NullScrollbars() {}
NullScrollbars.prototype = copyObj({
update: function() { return {bottom: 0, right: 0} },
setScrollLeft: function() {},
setScrollTop: function() {},
clear: function() {}
}, NullScrollbars.prototype)
function updateScrollbars(cm, measure) {
if (!measure) { measure = measureForScrollbars(cm) }
var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
updateScrollbarsInner(cm, measure)
for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
{ updateHeightsInViewport(cm) }
updateScrollbarsInner(cm, measureForScrollbars(cm))
startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
}
}
// Re-synchronize the fake scrollbars with the actual size of the
// content.
function updateScrollbarsInner(cm, measure) {
var d = cm.display
var sizes = d.scrollbars.update(measure)
d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
if (sizes.right && sizes.bottom) {
d.scrollbarFiller.style.display = "block"
d.scrollbarFiller.style.height = sizes.bottom + "px"
d.scrollbarFiller.style.width = sizes.right + "px"
} else { d.scrollbarFiller.style.display = "" }
if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
d.gutterFiller.style.display = "block"
d.gutterFiller.style.height = sizes.bottom + "px"
d.gutterFiller.style.width = measure.gutterWidth + "px"
} else { d.gutterFiller.style.display = "" }
}
var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
function initScrollbars(cm) {
if (cm.display.scrollbars) {
cm.display.scrollbars.clear()
if (cm.display.scrollbars.addClass)
{ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
}
cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
// Prevent clicks in the scrollbars from killing focus
on(node, "mousedown", function () {
if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) }
})
node.setAttribute("cm-not-content", "true")
}, function (pos, axis) {
if (axis == "horizontal") { setScrollLeft(cm, pos) }
else { setScrollTop(cm, pos) }
}, cm)
if (cm.display.scrollbars.addClass)
{ addClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
}
// SCROLLING THINGS INTO VIEW
// If an editor sits on the top or bottom of the window, partially
// scrolled out of view, this ensures that the cursor is visible.
function maybeScrollWindow(cm, coords) {
if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
if (coords.top + box.top < 0) { doScroll = true }
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false }
if (doScroll != null && !phantom) {
var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (coords.left) + "px; width: 2px;"))
cm.display.lineSpace.appendChild(scrollNode)
scrollNode.scrollIntoView(doScroll)
cm.display.lineSpace.removeChild(scrollNode)
}
}
// Scroll a given position into view (immediately), verifying that
// it actually became visible (as line heights are accurately
// measured, the position of something may 'drift' during drawing).
function scrollPosIntoView(cm, pos, end, margin) {
if (margin == null) { margin = 0 }
var coords
for (var limit = 0; limit < 5; limit++) {
var changed = false
coords = cursorCoords(cm, pos)
var endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
Math.min(coords.top, endCoords.top) - margin,
Math.max(coords.left, endCoords.left),
Math.max(coords.bottom, endCoords.bottom) + margin)
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
if (scrollPos.scrollTop != null) {
setScrollTop(cm, scrollPos.scrollTop)
if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true }
}
if (scrollPos.scrollLeft != null) {
setScrollLeft(cm, scrollPos.scrollLeft)
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true }
}
if (!changed) { break }
}
return coords
}
// Scroll a given set of coordinates into view (immediately).
function scrollIntoView(cm, x1, y1, x2, y2) {
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2)
if (scrollPos.scrollTop != null) { setScrollTop(cm, scrollPos.scrollTop) }
if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) }
}
// Calculate a new scroll position needed to scroll the given
// rectangle into view. Returns an object with scrollTop and
// scrollLeft properties. When these are undefined, the
// vertical/horizontal position does not need to be adjusted.
function calculateScrollPos(cm, x1, y1, x2, y2) {
var display = cm.display, snapMargin = textHeight(cm.display)
if (y1 < 0) { y1 = 0 }
var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
var screen = displayHeight(cm), result = {}
if (y2 - y1 > screen) { y2 = y1 + screen }
var docBottom = cm.doc.height + paddingVert(display)
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin
if (y1 < screentop) {
result.scrollTop = atTop ? 0 : y1
} else if (y2 > screentop + screen) {
var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen)
if (newTop != screentop) { result.scrollTop = newTop }
}
var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
var tooWide = x2 - x1 > screenw
if (tooWide) { x2 = x1 + screenw }
if (x1 < 10)
{ result.scrollLeft = 0 }
else if (x1 < screenleft)
{ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)) }
else if (x2 > screenw + screenleft - 3)
{ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw }
return result
}
// Store a relative adjustment to the scroll position in the current
// operation (to be applied when the operation finishes).
function addToScrollPos(cm, left, top) {
if (left != null || top != null) { resolveScrollToPos(cm) }
if (left != null)
{ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left }
if (top != null)
{ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top }
}
// Make sure that at the end of the operation the current cursor is
// shown.
function ensureCursorVisible(cm) {
resolveScrollToPos(cm)
var cur = cm.getCursor(), from = cur, to = cur
if (!cm.options.lineWrapping) {
from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur
to = Pos(cur.line, cur.ch + 1)
}
cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}
}
// When an operation has its scrollToPos property set, and another
// scroll action is applied before the end of the operation, this
// 'simulates' scrolling that position into view in a cheap way, so
// that the effect of intermediate scroll commands is not ignored.
function resolveScrollToPos(cm) {
var range = cm.curOp.scrollToPos
if (range) {
cm.curOp.scrollToPos = null
var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
Math.min(from.top, to.top) - range.margin,
Math.max(from.right, to.right),
Math.max(from.bottom, to.bottom) + range.margin)
cm.scrollTo(sPos.scrollLeft, sPos.scrollTop)
}
}
// Operations are used to wrap a series of changes to the editor
// state in such a way that each change won't have to update the
// cursor and display (which would be awkward, slow, and
// error-prone). Instead, display updates are batched and then all
// combined and executed at once.
var nextOpId = 0
// Start a new operation.
function startOperation(cm) {
cm.curOp = {
cm: cm,
viewChanged: false, // Flag that indicates that lines might need to be redrawn
startHeight: cm.doc.height, // Used to detect need to update scrollbar
forceUpdate: false, // Used to force a redraw
updateInput: null, // Whether to reset the input textarea
typing: false, // Whether this reset should be careful to leave existing text (for compositing)
changeObjs: null, // Accumulated changes, for firing change events
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
selectionChanged: false, // Whether the selection needs to be redrawn
updateMaxLine: false, // Set when the widest line needs to be determined anew
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
scrollToPos: null, // Used to scroll to a specific position
focus: false,
id: ++nextOpId // Unique ID
}
pushOperation(cm.curOp)
}
// Finish an operation, updating the display and signalling delayed events
function endOperation(cm) {
var op = cm.curOp
finishOperation(op, function (group) {
for (var i = 0; i < group.ops.length; i++)
{ group.ops[i].cm.curOp = null }
endOperations(group)
})
}
// The DOM updates done when an operation finishes are batched so
// that the minimum number of relayouts are required.
function endOperations(group) {
var ops = group.ops
for (var i = 0; i < ops.length; i++) // Read DOM
{ endOperation_R1(ops[i]) }
for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
{ endOperation_W1(ops[i$1]) }
for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
{ endOperation_R2(ops[i$2]) }
for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
{ endOperation_W2(ops[i$3]) }
for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
{ endOperation_finish(ops[i$4]) }
}
function endOperation_R1(op) {
var cm = op.cm, display = cm.display
maybeClipScrollbars(cm)
if (op.updateMaxLine) { findMaxLine(cm) }
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
op.scrollToPos.to.line >= display.viewTo) ||
display.maxLineChanged && cm.options.lineWrapping
op.update = op.mustUpdate &&
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
}
function endOperation_W1(op) {
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
}
function endOperation_R2(op) {
var cm = op.cm, display = cm.display
if (op.updatedDisplay) { updateHeightsInViewport(cm) }
op.barMeasure = measureForScrollbars(cm)
// If the max line changed since it was last measured, measure it,
// and ensure the document's width matches it.
// updateDisplay_W2 will use these properties to do the actual resizing
if (display.maxLineChanged && !cm.options.lineWrapping) {
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
cm.display.sizerWidth = op.adjustWidthTo
op.barMeasure.scrollWidth =
Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
}
if (op.updatedDisplay || op.selectionChanged)
{ op.preparedSelection = display.input.prepareSelection(op.focus) }
}
function endOperation_W2(op) {
var cm = op.cm
if (op.adjustWidthTo != null) {
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
if (op.maxScrollLeft < cm.doc.scrollLeft)
{ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) }
cm.display.maxLineChanged = false
}
var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
if (op.preparedSelection)
{ cm.display.input.showSelection(op.preparedSelection, takeFocus) }
if (op.updatedDisplay || op.startHeight != cm.doc.height)
{ updateScrollbars(cm, op.barMeasure) }
if (op.updatedDisplay)
{ setDocumentHeight(cm, op.barMeasure) }
if (op.selectionChanged) { restartBlink(cm) }
if (cm.state.focused && op.updateInput)
{ cm.display.input.reset(op.typing) }
if (takeFocus) { ensureFocus(op.cm) }
}
function endOperation_finish(op) {
var cm = op.cm, display = cm.display, doc = cm.doc
if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) }
// Abort mouse wheel delta measurement, when scrolling explicitly
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
{ display.wheelStartX = display.wheelStartY = null }
// Propagate the scroll position to the actual DOM scroller
if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop))
display.scrollbars.setScrollTop(doc.scrollTop)
display.scroller.scrollTop = doc.scrollTop
}
if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft))
display.scrollbars.setScrollLeft(doc.scrollLeft)
display.scroller.scrollLeft = doc.scrollLeft
alignHorizontally(cm)
}
// If we need to scroll a specific position into view, do so.
if (op.scrollToPos) {
var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
if (op.scrollToPos.isCursor && cm.state.focused) { maybeScrollWindow(cm, coords) }
}
// Fire events for markers that are hidden/unidden by editing or
// undoing
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
if (hidden) { for (var i = 0; i < hidden.length; ++i)
{ if (!hidden[i].lines.length) { signal(hidden[i], "hide") } } }
if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
{ if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide") } } }
if (display.wrapper.offsetHeight)
{ doc.scrollTop = cm.display.scroller.scrollTop }
// Fire change events, and delayed event handlers
if (op.changeObjs)
{ signal(cm, "changes", cm, op.changeObjs) }
if (op.update)
{ op.update.finish() }
}
// Run the given function in an operation
function runInOp(cm, f) {
if (cm.curOp) { return f() }
startOperation(cm)
try { return f() }
finally { endOperation(cm) }
}
// Wraps a function in an operation. Returns the wrapped function.
function operation(cm, f) {
return function() {
if (cm.curOp) { return f.apply(cm, arguments) }
startOperation(cm)
try { return f.apply(cm, arguments) }
finally { endOperation(cm) }
}
}
// Used to add methods to editor and doc instances, wrapping them in
// operations.
function methodOp(f) {
return function() {
if (this.curOp) { return f.apply(this, arguments) }
startOperation(this)
try { return f.apply(this, arguments) }
finally { endOperation(this) }
}
}
function docMethodOp(f) {
return function() {
var cm = this.cm
if (!cm || cm.curOp) { return f.apply(this, arguments) }
startOperation(cm)
try { return f.apply(this, arguments) }
finally { endOperation(cm) }
}
}
// Updates the display.view data structure for a given change to the
// document. From and to are in pre-change coordinates. Lendiff is
// the amount of lines added or subtracted by the change. This is
// used for changes that span multiple lines, or change the way
// lines are divided into visual lines. regLineChange (below)
// registers single-line changes.
function regChange(cm, from, to, lendiff) {
if (from == null) { from = cm.doc.first }
if (to == null) { to = cm.doc.first + cm.doc.size }
if (!lendiff) { lendiff = 0 }
var display = cm.display
if (lendiff && to < display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers > from))
{ display.updateLineNumbers = from }
cm.curOp.viewChanged = true
if (from >= display.viewTo) { // Change after
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
{ resetView(cm) }
} else if (to <= display.viewFrom) { // Change before
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
resetView(cm)
} else {
display.viewFrom += lendiff
display.viewTo += lendiff
}
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
resetView(cm)
} else if (from <= display.viewFrom) { // Top overlap
var cut = viewCuttingPoint(cm, to, to + lendiff, 1)
if (cut) {
display.view = display.view.slice(cut.index)
display.viewFrom = cut.lineN
display.viewTo += lendiff
} else {
resetView(cm)
}
} else if (to >= display.viewTo) { // Bottom overlap
var cut$1 = viewCuttingPoint(cm, from, from, -1)
if (cut$1) {
display.view = display.view.slice(0, cut$1.index)
display.viewTo = cut$1.lineN
} else {
resetView(cm)
}
} else { // Gap in the middle
var cutTop = viewCuttingPoint(cm, from, from, -1)
var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
if (cutTop && cutBot) {
display.view = display.view.slice(0, cutTop.index)
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
.concat(display.view.slice(cutBot.index))
display.viewTo += lendiff
} else {
resetView(cm)
}
}
var ext = display.externalMeasured
if (ext) {
if (to < ext.lineN)
{ ext.lineN += lendiff }
else if (from < ext.lineN + ext.size)
{ display.externalMeasured = null }
}
}
// Register a change to a single line. Type must be one of "text",
// "gutter", "class", "widget"
function regLineChange(cm, line, type) {
cm.curOp.viewChanged = true
var display = cm.display, ext = cm.display.externalMeasured
if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
{ display.externalMeasured = null }
if (line < display.viewFrom || line >= display.viewTo) { return }
var lineView = display.view[findViewIndex(cm, line)]
if (lineView.node == null) { return }
var arr = lineView.changes || (lineView.changes = [])
if (indexOf(arr, type) == -1) { arr.push(type) }
}
// Clear the view.
function resetView(cm) {
cm.display.viewFrom = cm.display.viewTo = cm.doc.first
cm.display.view = []
cm.display.viewOffset = 0
}
function viewCuttingPoint(cm, oldN, newN, dir) {
var index = findViewIndex(cm, oldN), diff, view = cm.display.view
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
{ return {index: index, lineN: newN} }
var n = cm.display.viewFrom
for (var i = 0; i < index; i++)
{ n += view[i].size }
if (n != oldN) {
if (dir > 0) {
if (index == view.length - 1) { return null }
diff = (n + view[index].size) - oldN
index++
} else {
diff = n - oldN
}
oldN += diff; newN += diff
}
while (visualLineNo(cm.doc, newN) != newN) {
if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
newN += dir * view[index - (dir < 0 ? 1 : 0)].size
index += dir
}
return {index: index, lineN: newN}
}
// Force the view to cover a given range, adding empty view element
// or clipping off existing ones as needed.
function adjustView(cm, from, to) {
var display = cm.display, view = display.view
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
display.view = buildViewArray(cm, from, to)
display.viewFrom = from
} else {
if (display.viewFrom > from)
{ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) }
else if (display.viewFrom < from)
{ display.view = display.view.slice(findViewIndex(cm, from)) }
display.viewFrom = from
if (display.viewTo < to)
{ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) }
else if (display.viewTo > to)
{ display.view = display.view.slice(0, findViewIndex(cm, to)) }
}
display.viewTo = to
}
// Count the number of lines in the view whose DOM representation is
// out of date (or nonexistent).
function countDirtyView(cm) {
var view = cm.display.view, dirty = 0
for (var i = 0; i < view.length; i++) {
var lineView = view[i]
if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty }
}
return dirty
}
// HIGHLIGHT WORKER
function startWorker(cm, time) {
if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
{ cm.state.highlight.set(time, bind(highlightWorker, cm)) }
}
function highlightWorker(cm) {
var doc = cm.doc
if (doc.frontier < doc.first) { doc.frontier = doc.first }
if (doc.frontier >= cm.display.viewTo) { return }
var end = +new Date + cm.options.workTime
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier))
var changedLines = []
doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
if (doc.frontier >= cm.display.viewFrom) { // Visible
var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength
var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true)
line.styles = highlighted.styles
var oldCls = line.styleClasses, newCls = highlighted.classes
if (newCls) { line.styleClasses = newCls }
else if (oldCls) { line.styleClasses = null }
var ischange = !oldStyles || oldStyles.length != line.styles.length ||
oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] }
if (ischange) { changedLines.push(doc.frontier) }
line.stateAfter = tooLong ? state : copyState(doc.mode, state)
} else {
if (line.text.length <= cm.options.maxHighlightLength)
{ processLine(cm, line.text, state) }
line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null
}
++doc.frontier
if (+new Date > end) {
startWorker(cm, cm.options.workDelay)
return true
}
})
if (changedLines.length) { runInOp(cm, function () {
for (var i = 0; i < changedLines.length; i++)
{ regLineChange(cm, changedLines[i], "text") }
}) }
}
// DISPLAY DRAWING
function DisplayUpdate(cm, viewport, force) {
var display = cm.display
this.viewport = viewport
// Store some values that we'll need later (but don't want to force a relayout for)
this.visible = visibleLines(display, cm.doc, viewport)
this.editorIsHidden = !display.wrapper.offsetWidth
this.wrapperHeight = display.wrapper.clientHeight
this.wrapperWidth = display.wrapper.clientWidth
this.oldDisplayWidth = displayWidth(cm)
this.force = force
this.dims = getDimensions(cm)
this.events = []
}
DisplayUpdate.prototype.signal = function(emitter, type) {
if (hasHandler(emitter, type))
{ this.events.push(arguments) }
}
DisplayUpdate.prototype.finish = function() {
var this$1 = this;
for (var i = 0; i < this.events.length; i++)
{ signal.apply(null, this$1.events[i]) }
}
function maybeClipScrollbars(cm) {
var display = cm.display
if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
display.heightForcer.style.height = scrollGap(cm) + "px"
display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
display.scrollbarsClipped = true
}
}
// Does the actual updating of the line display. Bails out
// (returning false) when there is nothing to be done and forced is
// false.
function updateDisplayIfNeeded(cm, update) {
var display = cm.display, doc = cm.doc
if (update.editorIsHidden) {
resetView(cm)
return false
}
// Bail out if the visible area is already rendered and nothing changed.
if (!update.force &&
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
display.renderedView == display.view && countDirtyView(cm) == 0)
{ return false }
if (maybeUpdateLineNumberWidth(cm)) {
resetView(cm)
update.dims = getDimensions(cm)
}
// Compute a suitable new viewport (from & to)
var end = doc.first + doc.size
var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
var to = Math.min(end, update.visible.to + cm.options.viewportMargin)
if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) }
if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) }
if (sawCollapsedSpans) {
from = visualLineNo(cm.doc, from)
to = visualLineEndNo(cm.doc, to)
}
var different = from != display.viewFrom || to != display.viewTo ||
display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
adjustView(cm, from, to)
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
// Position the mover div to align with the current scroll position
cm.display.mover.style.top = display.viewOffset + "px"
var toUpdate = countDirtyView(cm)
if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
{ return false }
// For big changes, we hide the enclosing element during the
// update, since that speeds up the operations on most browsers.
var focused = activeElt()
if (toUpdate > 4) { display.lineDiv.style.display = "none" }
patchDisplay(cm, display.updateLineNumbers, update.dims)
if (toUpdate > 4) { display.lineDiv.style.display = "" }
display.renderedView = display.view
// There might have been a widget with a focused element that got
// hidden or updated, if so re-focus it.
if (focused && activeElt() != focused && focused.offsetHeight) { focused.focus() }
// Prevent selection and cursors from interfering with the scroll
// width and height.
removeChildren(display.cursorDiv)
removeChildren(display.selectionDiv)
display.gutters.style.height = display.sizer.style.minHeight = 0
if (different) {
display.lastWrapHeight = update.wrapperHeight
display.lastWrapWidth = update.wrapperWidth
startWorker(cm, 400)
}
display.updateLineNumbers = null
return true
}
function postUpdateDisplay(cm, update) {
var viewport = update.viewport
for (var first = true;; first = false) {
if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
// Clip forced viewport to actual scrollable area.
if (viewport && viewport.top != null)
{ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} }
// Updated line heights might result in the drawn area not
// actually covering the viewport. Keep looping until it does.
update.visible = visibleLines(cm.display, cm.doc, viewport)
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
{ break }
}
if (!updateDisplayIfNeeded(cm, update)) { break }
updateHeightsInViewport(cm)
var barMeasure = measureForScrollbars(cm)
updateSelection(cm)
updateScrollbars(cm, barMeasure)
setDocumentHeight(cm, barMeasure)
}
update.signal(cm, "update", cm)
if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
}
}
function updateDisplaySimple(cm, viewport) {
var update = new DisplayUpdate(cm, viewport)
if (updateDisplayIfNeeded(cm, update)) {
updateHeightsInViewport(cm)
postUpdateDisplay(cm, update)
var barMeasure = measureForScrollbars(cm)
updateSelection(cm)
updateScrollbars(cm, barMeasure)
setDocumentHeight(cm, barMeasure)
update.finish()
}
}
// Sync the actual display DOM structure with display.view, removing
// nodes for lines that are no longer in view, and creating the ones
// that are not there yet, and updating the ones that are out of
// date.
function patchDisplay(cm, updateNumbersFrom, dims) {
var display = cm.display, lineNumbers = cm.options.lineNumbers
var container = display.lineDiv, cur = container.firstChild
function rm(node) {
var next = node.nextSibling
// Works around a throw-scroll bug in OS X Webkit
if (webkit && mac && cm.display.currentWheelTarget == node)
{ node.style.display = "none" }
else
{ node.parentNode.removeChild(node) }
return next
}
var view = display.view, lineN = display.viewFrom
// Loop over the elements in the view, syncing cur (the DOM nodes
// in display.lineDiv) with the view as we go.
for (var i = 0; i < view.length; i++) {
var lineView = view[i]
if (lineView.hidden) {
} else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
var node = buildLineElement(cm, lineView, lineN, dims)
container.insertBefore(node, cur)
} else { // Already drawn
while (cur != lineView.node) { cur = rm(cur) }
var updateNumber = lineNumbers && updateNumbersFrom != null &&
updateNumbersFrom <= lineN && lineView.lineNumber
if (lineView.changes) {
if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false }
updateLineForChanges(cm, lineView, lineN, dims)
}
if (updateNumber) {
removeChildren(lineView.lineNumber)
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
}
cur = lineView.node.nextSibling
}
lineN += lineView.size
}
while (cur) { cur = rm(cur) }
}
function updateGutterSpace(cm) {
var width = cm.display.gutters.offsetWidth
cm.display.sizer.style.marginLeft = width + "px"
}
function setDocumentHeight(cm, measure) {
cm.display.sizer.style.minHeight = measure.docHeight + "px"
cm.display.heightForcer.style.top = measure.docHeight + "px"
cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
}
// Rebuild the gutter elements, ensure the margin to the left of the
// code matches their width.
function updateGutters(cm) {
var gutters = cm.display.gutters, specs = cm.options.gutters
removeChildren(gutters)
var i = 0
for (; i < specs.length; ++i) {
var gutterClass = specs[i]
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass))
if (gutterClass == "CodeMirror-linenumbers") {
cm.display.lineGutter = gElt
gElt.style.width = (cm.display.lineNumWidth || 1) + "px"
}
}
gutters.style.display = i ? "" : "none"
updateGutterSpace(cm)
}
// Make sure the gutters options contains the element
// "CodeMirror-linenumbers" when the lineNumbers option is true.
function setGuttersForLineNumbers(options) {
var found = indexOf(options.gutters, "CodeMirror-linenumbers")
if (found == -1 && options.lineNumbers) {
options.gutters = options.gutters.concat(["CodeMirror-linenumbers"])
} else if (found > -1 && !options.lineNumbers) {
options.gutters = options.gutters.slice(0)
options.gutters.splice(found, 1)
}
}
// Selection objects are immutable. A new one is created every time
// the selection changes. A selection is one or more non-overlapping
// (and non-touching) ranges, sorted, and an integer that indicates
// which one is the primary selection (the one that's scrolled into
// view, that getCursor returns, etc).
function Selection(ranges, primIndex) {
this.ranges = ranges
this.primIndex = primIndex
}
Selection.prototype = {
primary: function() { return this.ranges[this.primIndex] },
equals: function(other) {
var this$1 = this;
if (other == this) { return true }
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
for (var i = 0; i < this.ranges.length; i++) {
var here = this$1.ranges[i], there = other.ranges[i]
if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) { return false }
}
return true
},
deepCopy: function() {
var this$1 = this;
var out = []
for (var i = 0; i < this.ranges.length; i++)
{ out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) }
return new Selection(out, this.primIndex)
},
somethingSelected: function() {
var this$1 = this;
for (var i = 0; i < this.ranges.length; i++)
{ if (!this$1.ranges[i].empty()) { return true } }
return false
},
contains: function(pos, end) {
var this$1 = this;
if (!end) { end = pos }
for (var i = 0; i < this.ranges.length; i++) {
var range = this$1.ranges[i]
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
{ return i }
}
return -1
}
}
function Range(anchor, head) {
this.anchor = anchor; this.head = head
}
Range.prototype = {
from: function() { return minPos(this.anchor, this.head) },
to: function() { return maxPos(this.anchor, this.head) },
empty: function() {
return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch
}
}
// Take an unsorted, potentially overlapping set of ranges, and
// build a selection out of it. 'Consumes' ranges array (modifying
// it).
function normalizeSelection(ranges, primIndex) {
var prim = ranges[primIndex]
ranges.sort(function (a, b) { return cmp(a.from(), b.from()); })
primIndex = indexOf(ranges, prim)
for (var i = 1; i < ranges.length; i++) {
var cur = ranges[i], prev = ranges[i - 1]
if (cmp(prev.to(), cur.from()) >= 0) {
var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
if (i <= primIndex) { --primIndex }
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
}
}
return new Selection(ranges, primIndex)
}
function simpleSelection(anchor, head) {
return new Selection([new Range(anchor, head || anchor)], 0)
}
// Compute the position of the end of a change (its 'to' property
// refers to the pre-change end).
function changeEnd(change) {
if (!change.text) { return change.to }
return Pos(change.from.line + change.text.length - 1,
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
}
// Adjust a position to refer to the post-change position of the
// same text, or the end of the change if the change covers it.
function adjustForChange(pos, change) {
if (cmp(pos, change.from) < 0) { return pos }
if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch }
return Pos(line, ch)
}
function computeSelAfterChange(doc, change) {
var out = []
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i]
out.push(new Range(adjustForChange(range.anchor, change),
adjustForChange(range.head, change)))
}
return normalizeSelection(out, doc.sel.primIndex)
}
function offsetPos(pos, old, nw) {
if (pos.line == old.line)
{ return Pos(nw.line, pos.ch - old.ch + nw.ch) }
else
{ return Pos(nw.line + (pos.line - old.line), pos.ch) }
}
// Used by replaceSelections to allow moving the selection to the
// start or around the replaced test. Hint may be "start" or "around".
function computeReplacedSel(doc, changes, hint) {
var out = []
var oldPrev = Pos(doc.first, 0), newPrev = oldPrev
for (var i = 0; i < changes.length; i++) {
var change = changes[i]
var from = offsetPos(change.from, oldPrev, newPrev)
var to = offsetPos(changeEnd(change), oldPrev, newPrev)
oldPrev = change.to
newPrev = to
if (hint == "around") {
var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
out[i] = new Range(inv ? to : from, inv ? from : to)
} else {
out[i] = new Range(from, from)
}
}
return new Selection(out, doc.sel.primIndex)
}
// Used to get the editor into a consistent state again when options change.
function loadMode(cm) {
cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
resetModeState(cm)
}
function resetModeState(cm) {
cm.doc.iter(function (line) {
if (line.stateAfter) { line.stateAfter = null }
if (line.styles) { line.styles = null }
})
cm.doc.frontier = cm.doc.first
startWorker(cm, 100)
cm.state.modeGen++
if (cm.curOp) { regChange(cm) }
}
// DOCUMENT DATA STRUCTURE
// By default, updates that start and end at the beginning of a line
// are treated specially, in order to make the association of line
// widgets and marker elements with the text behave more intuitive.
function isWholeLineUpdate(doc, change) {
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
(!doc.cm || doc.cm.options.wholeLineUpdateBefore)
}
// Perform a change on the document data structure.
function updateDoc(doc, change, markedSpans, estimateHeight) {
function spansFor(n) {return markedSpans ? markedSpans[n] : null}
function update(line, text, spans) {
updateLine(line, text, spans, estimateHeight)
signalLater(line, "change", line, change)
}
function linesFor(start, end) {
var result = []
for (var i = start; i < end; ++i)
{ result.push(new Line(text[i], spansFor(i), estimateHeight)) }
return result
}
var from = change.from, to = change.to, text = change.text
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
// Adjust the line structure
if (change.full) {
doc.insert(0, linesFor(0, text.length))
doc.remove(text.length, doc.size - text.length)
} else if (isWholeLineUpdate(doc, change)) {
// This is a whole-line replace. Treated specially to make
// sure line objects move the way they are supposed to.
var added = linesFor(0, text.length - 1)
update(lastLine, lastLine.text, lastSpans)
if (nlines) { doc.remove(from.line, nlines) }
if (added.length) { doc.insert(from.line, added) }
} else if (firstLine == lastLine) {
if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
} else {
var added$1 = linesFor(1, text.length - 1)
added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
doc.insert(from.line + 1, added$1)
}
} else if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
doc.remove(from.line + 1, nlines)
} else {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
var added$2 = linesFor(1, text.length - 1)
if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) }
doc.insert(from.line + 1, added$2)
}
signalLater(doc, "change", doc, change)
}
// Call f for all linked documents.
function linkedDocs(doc, f, sharedHistOnly) {
function propagate(doc, skip, sharedHist) {
if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
var rel = doc.linked[i]
if (rel.doc == skip) { continue }
var shared = sharedHist && rel.sharedHist
if (sharedHistOnly && !shared) { continue }
f(rel.doc, shared)
propagate(rel.doc, doc, shared)
} }
}
propagate(doc, null, true)
}
// Attach a document to an editor.
function attachDoc(cm, doc) {
if (doc.cm) { throw new Error("This document is already in use.") }
cm.doc = doc
doc.cm = cm
estimateLineHeights(cm)
loadMode(cm)
if (!cm.options.lineWrapping) { findMaxLine(cm) }
cm.options.mode = doc.modeOption
regChange(cm)
}
function History(startGen) {
// Arrays of change events and selections. Doing something adds an
// event to done and clears undo. Undoing moves events from done
// to undone, redoing moves them in the other direction.
this.done = []; this.undone = []
this.undoDepth = Infinity
// Used to track when changes can be merged into a single undo
// event
this.lastModTime = this.lastSelTime = 0
this.lastOp = this.lastSelOp = null
this.lastOrigin = this.lastSelOrigin = null
// Used by the isClean() method
this.generation = this.maxGeneration = startGen || 1
}
// Create a history change event from an updateDoc-style change
// object.
function historyChangeFromChange(doc, change) {
var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true)
return histChange
}
// Pop all selection events off the end of a history array. Stop at
// a change event.
function clearSelectionEvents(array) {
while (array.length) {
var last = lst(array)
if (last.ranges) { array.pop() }
else { break }
}
}
// Find the top change event in the history. Pop off selection
// events that are in the way.
function lastChangeEvent(hist, force) {
if (force) {
clearSelectionEvents(hist.done)
return lst(hist.done)
} else if (hist.done.length && !lst(hist.done).ranges) {
return lst(hist.done)
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
hist.done.pop()
return lst(hist.done)
}
}
// Register a change in the history. Merges changes that are within
// a single operation, or are close together with an origin that
// allows merging (starting with "+") into a single event.
function addChangeToHistory(doc, change, selAfter, opId) {
var hist = doc.history
hist.undone.length = 0
var time = +new Date, cur
var last
if ((hist.lastOp == opId ||
hist.lastOrigin == change.origin && change.origin &&
((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
change.origin.charAt(0) == "*")) &&
(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
// Merge this change into the last event
last = lst(cur.changes)
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
// Optimized case for simple insertion -- don't want to add
// new changesets for every character typed
last.to = changeEnd(change)
} else {
// Add new sub-event
cur.changes.push(historyChangeFromChange(doc, change))
}
} else {
// Can not be merged, start a new event.
var before = lst(hist.done)
if (!before || !before.ranges)
{ pushSelectionToHistory(doc.sel, hist.done) }
cur = {changes: [historyChangeFromChange(doc, change)],
generation: hist.generation}
hist.done.push(cur)
while (hist.done.length > hist.undoDepth) {
hist.done.shift()
if (!hist.done[0].ranges) { hist.done.shift() }
}
}
hist.done.push(selAfter)
hist.generation = ++hist.maxGeneration
hist.lastModTime = hist.lastSelTime = time
hist.lastOp = hist.lastSelOp = opId
hist.lastOrigin = hist.lastSelOrigin = change.origin
if (!last) { signal(doc, "historyAdded") }
}
function selectionEventCanBeMerged(doc, origin, prev, sel) {
var ch = origin.charAt(0)
return ch == "*" ||
ch == "+" &&
prev.ranges.length == sel.ranges.length &&
prev.somethingSelected() == sel.somethingSelected() &&
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
}
// Called whenever the selection changes, sets the new selection as
// the pending selection in the history, and pushes the old pending
// selection into the 'done' array when it was significantly
// different (in number of selected ranges, emptiness, or time).
function addSelectionToHistory(doc, sel, opId, options) {
var hist = doc.history, origin = options && options.origin
// A new event is started when the previous origin does not match
// the current, or the origins don't allow matching. Origins
// starting with * are always merged, those starting with + are
// merged when similar and close together in time.
if (opId == hist.lastSelOp ||
(origin && hist.lastSelOrigin == origin &&
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
{ hist.done[hist.done.length - 1] = sel }
else
{ pushSelectionToHistory(sel, hist.done) }
hist.lastSelTime = +new Date
hist.lastSelOrigin = origin
hist.lastSelOp = opId
if (options && options.clearRedo !== false)
{ clearSelectionEvents(hist.undone) }
}
function pushSelectionToHistory(sel, dest) {
var top = lst(dest)
if (!(top && top.ranges && top.equals(sel)))
{ dest.push(sel) }
}
// Used to store marked span information in the history.
function attachLocalSpans(doc, change, from, to) {
var existing = change["spans_" + doc.id], n = 0
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
if (line.markedSpans)
{ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans }
++n
})
}
// When un/re-doing restores text containing marked spans, those
// that have been explicitly cleared should not be restored.
function removeClearedSpans(spans) {
if (!spans) { return null }
var out
for (var i = 0; i < spans.length; ++i) {
if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } }
else if (out) { out.push(spans[i]) }
}
return !out ? spans : out.length ? out : null
}
// Retrieve and filter the old marked spans stored in a change event.
function getOldSpans(doc, change) {
var found = change["spans_" + doc.id]
if (!found) { return null }
var nw = []
for (var i = 0; i < change.text.length; ++i)
{ nw.push(removeClearedSpans(found[i])) }
return nw
}
// Used for un/re-doing changes from the history. Combines the
// result of computing the existing spans with the set of spans that
// existed in the history (so that deleting around a span and then
// undoing brings back the span).
function mergeOldSpans(doc, change) {
var old = getOldSpans(doc, change)
var stretched = stretchSpansOverChange(doc, change)
if (!old) { return stretched }
if (!stretched) { return old }
for (var i = 0; i < old.length; ++i) {
var oldCur = old[i], stretchCur = stretched[i]
if (oldCur && stretchCur) {
spans: for (var j = 0; j < stretchCur.length; ++j) {
var span = stretchCur[j]
for (var k = 0; k < oldCur.length; ++k)
{ if (oldCur[k].marker == span.marker) { continue spans } }
oldCur.push(span)
}
} else if (stretchCur) {
old[i] = stretchCur
}
}
return old
}
// Used both to provide a JSON-safe object in .getHistory, and, when
// detaching a document, to split the history in two
function copyHistoryArray(events, newGroup, instantiateSel) {
var copy = []
for (var i = 0; i < events.length; ++i) {
var event = events[i]
if (event.ranges) {
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
continue
}
var changes = event.changes, newChanges = []
copy.push({changes: newChanges})
for (var j = 0; j < changes.length; ++j) {
var change = changes[j], m = void 0
newChanges.push({from: change.from, to: change.to, text: change.text})
if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
if (indexOf(newGroup, Number(m[1])) > -1) {
lst(newChanges)[prop] = change[prop]
delete change[prop]
}
} } }
}
}
return copy
}
// The 'scroll' parameter given to many of these indicated whether
// the new cursor position should be scrolled into view after
// modifying the selection.
// If shift is held or the extend flag is set, extends a range to
// include a given position (and optionally a second position).
// Otherwise, simply returns the range between the given positions.
// Used for cursor motion and such.
function extendRange(doc, range, head, other) {
if (doc.cm && doc.cm.display.shift || doc.extend) {
var anchor = range.anchor
if (other) {
var posBefore = cmp(head, anchor) < 0
if (posBefore != (cmp(other, anchor) < 0)) {
anchor = head
head = other
} else if (posBefore != (cmp(head, other) < 0)) {
head = other
}
}
return new Range(anchor, head)
} else {
return new Range(other || head, head)
}
}
// Extend the primary selection range, discard the rest.
function extendSelection(doc, head, other, options) {
setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options)
}
// Extend all selections (pos is an array of selections with length
// equal the number of selections)
function extendSelections(doc, heads, options) {
var out = []
for (var i = 0; i < doc.sel.ranges.length; i++)
{ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null) }
var newSel = normalizeSelection(out, doc.sel.primIndex)
setSelection(doc, newSel, options)
}
// Updates a single range in the selection.
function replaceOneSelection(doc, i, range, options) {
var ranges = doc.sel.ranges.slice(0)
ranges[i] = range
setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)
}
// Reset the selection to a single range.
function setSimpleSelection(doc, anchor, head, options) {
setSelection(doc, simpleSelection(anchor, head), options)
}
// Give beforeSelectionChange handlers a change to influence a
// selection update.
function filterSelectionChange(doc, sel, options) {
var obj = {
ranges: sel.ranges,
update: function(ranges) {
var this$1 = this;
this.ranges = []
for (var i = 0; i < ranges.length; i++)
{ this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
clipPos(doc, ranges[i].head)) }
},
origin: options && options.origin
}
signal(doc, "beforeSelectionChange", doc, obj)
if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj) }
if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }
else { return sel }
}
function setSelectionReplaceHistory(doc, sel, options) {
var done = doc.history.done, last = lst(done)
if (last && last.ranges) {
done[done.length - 1] = sel
setSelectionNoUndo(doc, sel, options)
} else {
setSelection(doc, sel, options)
}
}
// Set a new selection.
function setSelection(doc, sel, options) {
setSelectionNoUndo(doc, sel, options)
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
}
function setSelectionNoUndo(doc, sel, options) {
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
{ sel = filterSelectionChange(doc, sel, options) }
var bias = options && options.bias ||
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
if (!(options && options.scroll === false) && doc.cm)
{ ensureCursorVisible(doc.cm) }
}
function setSelectionInner(doc, sel) {
if (sel.equals(doc.sel)) { return }
doc.sel = sel
if (doc.cm) {
doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true
signalCursorActivity(doc.cm)
}
signalLater(doc, "cursorActivity", doc)
}
// Verify that the selection does not partially select any atomic
// marked ranges.
function reCheckSelection(doc) {
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll)
}
// Return a selection that does not partially select any atomic
// ranges.
function skipAtomicInSelection(doc, sel, bias, mayClear) {
var out
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i]
var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
if (out || newAnchor != range.anchor || newHead != range.head) {
if (!out) { out = sel.ranges.slice(0, i) }
out[i] = new Range(newAnchor, newHead)
}
}
return out ? normalizeSelection(out, sel.primIndex) : sel
}
function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
var line = getLine(doc, pos.line)
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
var sp = line.markedSpans[i], m = sp.marker
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
(sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
if (mayClear) {
signal(m, "beforeCursorEnter")
if (m.explicitlyCleared) {
if (!line.markedSpans) { break }
else {--i; continue}
}
}
if (!m.atomic) { continue }
if (oldPos) {
var near = m.find(dir < 0 ? 1 : -1), diff = void 0
if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
{ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) }
if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
{ return skipAtomicInner(doc, near, pos, dir, mayClear) }
}
var far = m.find(dir < 0 ? -1 : 1)
if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
{ far = movePos(doc, far, dir, far.line == pos.line ? line : null) }
return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
}
} }
return pos
}
// Ensure a given position is not inside an atomic range.
function skipAtomic(doc, pos, oldPos, bias, mayClear) {
var dir = bias || 1
var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
if (!found) {
doc.cantEdit = true
return Pos(doc.first, 0)
}
return found
}
function movePos(doc, pos, dir, line) {
if (dir < 0 && pos.ch == 0) {
if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
else { return null }
} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
else { return null }
} else {
return new Pos(pos.line, pos.ch + dir)
}
}
function selectAll(cm) {
cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
}
// UPDATING
// Allow "beforeChange" event handlers to influence a change
function filterChange(doc, change, update) {
var obj = {
canceled: false,
from: change.from,
to: change.to,
text: change.text,
origin: change.origin,
cancel: function () { return obj.canceled = true; }
}
if (update) { obj.update = function (from, to, text, origin) {
if (from) { obj.from = clipPos(doc, from) }
if (to) { obj.to = clipPos(doc, to) }
if (text) { obj.text = text }
if (origin !== undefined) { obj.origin = origin }
} }
signal(doc, "beforeChange", doc, obj)
if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj) }
if (obj.canceled) { return null }
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
}
// Apply a change to a document, and add it to the document's
// history, and propagating it to all linked documents.
function makeChange(doc, change, ignoreReadOnly) {
if (doc.cm) {
if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
if (doc.cm.state.suppressEdits) { return }
}
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
change = filterChange(doc, change, true)
if (!change) { return }
}
// Possibly split or suppress the update based on the presence
// of read-only spans in its range.
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
if (split) {
for (var i = split.length - 1; i >= 0; --i)
{ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}) }
} else {
makeChangeInner(doc, change)
}
}
function makeChangeInner(doc, change) {
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
var selAfter = computeSelAfterChange(doc, change)
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
var rebased = []
linkedDocs(doc, function (doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change)
rebased.push(doc.history)
}
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
})
}
// Revert a change stored in a document's history.
function makeChangeFromHistory(doc, type, allowSelectionOnly) {
if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return }
var hist = doc.history, event, selAfter = doc.sel
var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
// Verify that there is a useable event (so that ctrl-z won't
// needlessly clear selection events)
var i = 0
for (; i < source.length; i++) {
event = source[i]
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
{ break }
}
if (i == source.length) { return }
hist.lastOrigin = hist.lastSelOrigin = null
for (;;) {
event = source.pop()
if (event.ranges) {
pushSelectionToHistory(event, dest)
if (allowSelectionOnly && !event.equals(doc.sel)) {
setSelection(doc, event, {clearRedo: false})
return
}
selAfter = event
}
else { break }
}
// Build up a reverse change object to add to the opposite history
// stack (redo when undoing, and vice versa).
var antiChanges = []
pushSelectionToHistory(selAfter, dest)
dest.push({changes: antiChanges, generation: hist.generation})
hist.generation = event.generation || ++hist.maxGeneration
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
var loop = function ( i ) {
var change = event.changes[i]
change.origin = type
if (filter && !filterChange(doc, change, false)) {
source.length = 0
return {}
}
antiChanges.push(historyChangeFromChange(doc, change))
var after = i ? computeSelAfterChange(doc, change) : lst(source)
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) }
var rebased = []
// Propagate to the linked documents
linkedDocs(doc, function (doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change)
rebased.push(doc.history)
}
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
})
};
for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
var returned = loop( i$1 );
if ( returned ) return returned.v;
}
}
// Sub-views need their line numbers shifted when text is added
// above or below them in the parent document.
function shiftDoc(doc, distance) {
if (distance == 0) { return }
doc.first += distance
doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
Pos(range.anchor.line + distance, range.anchor.ch),
Pos(range.head.line + distance, range.head.ch)
); }), doc.sel.primIndex)
if (doc.cm) {
regChange(doc.cm, doc.first, doc.first - distance, distance)
for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
{ regLineChange(doc.cm, l, "gutter") }
}
}
// More lower-level change function, handling only a single document
// (not linked ones).
function makeChangeSingleDoc(doc, change, selAfter, spans) {
if (doc.cm && !doc.cm.curOp)
{ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
if (change.to.line < doc.first) {
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
return
}
if (change.from.line > doc.lastLine()) { return }
// Clip the change to the size of this doc
if (change.from.line < doc.first) {
var shift = change.text.length - 1 - (doc.first - change.from.line)
shiftDoc(doc, shift)
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
text: [lst(change.text)], origin: change.origin}
}
var last = doc.lastLine()
if (change.to.line > last) {
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
text: [change.text[0]], origin: change.origin}
}
change.removed = getBetween(doc, change.from, change.to)
if (!selAfter) { selAfter = computeSelAfterChange(doc, change) }
if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) }
else { updateDoc(doc, change, spans) }
setSelectionNoUndo(doc, selAfter, sel_dontScroll)
}
// Handle the interaction of a change to a document with the editor
// that this document is part of.
function makeChangeSingleDocInEditor(cm, change, spans) {
var doc = cm.doc, display = cm.display, from = change.from, to = change.to
var recomputeMaxLength = false, checkWidthStart = from.line
if (!cm.options.lineWrapping) {
checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
doc.iter(checkWidthStart, to.line + 1, function (line) {
if (line == display.maxLine) {
recomputeMaxLength = true
return true
}
})
}
if (doc.sel.contains(change.from, change.to) > -1)
{ signalCursorActivity(cm) }
updateDoc(doc, change, spans, estimateHeight(cm))
if (!cm.options.lineWrapping) {
doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
var len = lineLength(line)
if (len > display.maxLineLength) {
display.maxLine = line
display.maxLineLength = len
display.maxLineChanged = true
recomputeMaxLength = false
}
})
if (recomputeMaxLength) { cm.curOp.updateMaxLine = true }
}
// Adjust frontier, schedule worker
doc.frontier = Math.min(doc.frontier, from.line)
startWorker(cm, 400)
var lendiff = change.text.length - (to.line - from.line) - 1
// Remember that these lines changed, for updating the display
if (change.full)
{ regChange(cm) }
else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
{ regLineChange(cm, from.line, "text") }
else
{ regChange(cm, from.line, to.line + 1, lendiff) }
var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
if (changeHandler || changesHandler) {
var obj = {
from: from, to: to,
text: change.text,
removed: change.removed,
origin: change.origin
}
if (changeHandler) { signalLater(cm, "change", cm, obj) }
if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) }
}
cm.display.selForContextMenu = null
}
function replaceRange(doc, code, from, to, origin) {
if (!to) { to = from }
if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp }
if (typeof code == "string") { code = doc.splitLines(code) }
makeChange(doc, {from: from, to: to, text: code, origin: origin})
}
// Rebasing/resetting history to deal with externally-sourced changes
function rebaseHistSelSingle(pos, from, to, diff) {
if (to < pos.line) {
pos.line += diff
} else if (from < pos.line) {
pos.line = from
pos.ch = 0
}
}
// Tries to rebase an array of history events given a change in the
// document. If the change touches the same lines as the event, the
// event, and everything 'behind' it, is discarded. If the change is
// before the event, the event's positions are updated. Uses a
// copy-on-write scheme for the positions, to avoid having to
// reallocate them all on every rebase, but also avoid problems with
// shared position objects being unsafely updated.
function rebaseHistArray(array, from, to, diff) {
for (var i = 0; i < array.length; ++i) {
var sub = array[i], ok = true
if (sub.ranges) {
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
for (var j = 0; j < sub.ranges.length; j++) {
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
}
continue
}
for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
var cur = sub.changes[j$1]
if (to < cur.from.line) {
cur.from = Pos(cur.from.line + diff, cur.from.ch)
cur.to = Pos(cur.to.line + diff, cur.to.ch)
} else if (from <= cur.to.line) {
ok = false
break
}
}
if (!ok) {
array.splice(0, i + 1)
i = 0
}
}
}
function rebaseHist(hist, change) {
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
rebaseHistArray(hist.done, from, to, diff)
rebaseHistArray(hist.undone, from, to, diff)
}
// Utility for applying a change to a line by handle or number,
// returning the number and optionally registering the line as
// changed.
function changeLine(doc, handle, changeType, op) {
var no = handle, line = handle
if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)) }
else { no = lineNo(handle) }
if (no == null) { return null }
if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) }
return line
}
// The document is represented as a BTree consisting of leaves, with
// chunk of lines in them, and branches, with up to ten leaves or
// other branch nodes below them. The top node is always a branch
// node, and is the document object itself (meaning it has
// additional methods and properties).
//
// All nodes have parent links. The tree is used both to go from
// line numbers to line objects, and to go from objects to numbers.
// It also indexes by height, and is used to convert between height
// and line object, and to find the total height of the document.
//
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
function LeafChunk(lines) {
var this$1 = this;
this.lines = lines
this.parent = null
var height = 0
for (var i = 0; i < lines.length; ++i) {
lines[i].parent = this$1
height += lines[i].height
}
this.height = height
}
LeafChunk.prototype = {
chunkSize: function() { return this.lines.length },
// Remove the n lines at offset 'at'.
removeInner: function(at, n) {
var this$1 = this;
for (var i = at, e = at + n; i < e; ++i) {
var line = this$1.lines[i]
this$1.height -= line.height
cleanUpLine(line)
signalLater(line, "delete")
}
this.lines.splice(at, n)
},
// Helper used to collapse a small branch into a single leaf.
collapse: function(lines) {
lines.push.apply(lines, this.lines)
},
// Insert the given array of lines at offset 'at', count them as
// having the given height.
insertInner: function(at, lines, height) {
var this$1 = this;
this.height += height
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 }
},
// Used to iterate over a part of the tree.
iterN: function(at, n, op) {
var this$1 = this;
for (var e = at + n; at < e; ++at)
{ if (op(this$1.lines[at])) { return true } }
}
}
function BranchChunk(children) {
var this$1 = this;
this.children = children
var size = 0, height = 0
for (var i = 0; i < children.length; ++i) {
var ch = children[i]
size += ch.chunkSize(); height += ch.height
ch.parent = this$1
}
this.size = size
this.height = height
this.parent = null
}
BranchChunk.prototype = {
chunkSize: function() { return this.size },
removeInner: function(at, n) {
var this$1 = this;
this.size -= n
for (var i = 0; i < this.children.length; ++i) {
var child = this$1.children[i], sz = child.chunkSize()
if (at < sz) {
var rm = Math.min(n, sz - at), oldHeight = child.height
child.removeInner(at, rm)
this$1.height -= oldHeight - child.height
if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null }
if ((n -= rm) == 0) { break }
at = 0
} else { at -= sz }
}
// If the result is smaller than 25 lines, ensure that it is a
// single leaf node.
if (this.size - n < 25 &&
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
var lines = []
this.collapse(lines)
this.children = [new LeafChunk(lines)]
this.children[0].parent = this
}
},
collapse: function(lines) {
var this$1 = this;
for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) }
},
insertInner: function(at, lines, height) {
var this$1 = this;
this.size += lines.length
this.height += height
for (var i = 0; i < this.children.length; ++i) {
var child = this$1.children[i], sz = child.chunkSize()
if (at <= sz) {
child.insertInner(at, lines, height)
if (child.lines && child.lines.length > 50) {
// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
var remaining = child.lines.length % 25 + 25
for (var pos = remaining; pos < child.lines.length;) {
var leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
child.height -= leaf.height
this$1.children.splice(++i, 0, leaf)
leaf.parent = this$1
}
child.lines = child.lines.slice(0, remaining)
this$1.maybeSpill()
}
break
}
at -= sz
}
},
// When a node has grown, check whether it should be split.
maybeSpill: function() {
if (this.children.length <= 10) { return }
var me = this
do {
var spilled = me.children.splice(me.children.length - 5, 5)
var sibling = new BranchChunk(spilled)
if (!me.parent) { // Become the parent node
var copy = new BranchChunk(me.children)
copy.parent = me
me.children = [copy, sibling]
me = copy
} else {
me.size -= sibling.size
me.height -= sibling.height
var myIndex = indexOf(me.parent.children, me)
me.parent.children.splice(myIndex + 1, 0, sibling)
}
sibling.parent = me.parent
} while (me.children.length > 10)
me.parent.maybeSpill()
},
iterN: function(at, n, op) {
var this$1 = this;
for (var i = 0; i < this.children.length; ++i) {
var child = this$1.children[i], sz = child.chunkSize()
if (at < sz) {
var used = Math.min(n, sz - at)
if (child.iterN(at, used, op)) { return true }
if ((n -= used) == 0) { break }
at = 0
} else { at -= sz }
}
}
}
// Line widgets are block elements displayed above or below a line.
function LineWidget(doc, node, options) {
var this$1 = this;
if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
{ this$1[opt] = options[opt] } } }
this.doc = doc
this.node = node
}
eventMixin(LineWidget)
function adjustScrollWhenAboveVisible(cm, line, diff) {
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
{ addToScrollPos(cm, null, diff) }
}
LineWidget.prototype.clear = function() {
var this$1 = this;
var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
if (no == null || !ws) { return }
for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } }
if (!ws.length) { line.widgets = null }
var height = widgetHeight(this)
updateLineHeight(line, Math.max(0, line.height - height))
if (cm) { runInOp(cm, function () {
adjustScrollWhenAboveVisible(cm, line, -height)
regLineChange(cm, no, "widget")
}) }
}
LineWidget.prototype.changed = function() {
var oldH = this.height, cm = this.doc.cm, line = this.line
this.height = null
var diff = widgetHeight(this) - oldH
if (!diff) { return }
updateLineHeight(line, line.height + diff)
if (cm) { runInOp(cm, function () {
cm.curOp.forceUpdate = true
adjustScrollWhenAboveVisible(cm, line, diff)
}) }
}
function addLineWidget(doc, handle, node, options) {
var widget = new LineWidget(doc, node, options)
var cm = doc.cm
if (cm && widget.noHScroll) { cm.display.alignWidgets = true }
changeLine(doc, handle, "widget", function (line) {
var widgets = line.widgets || (line.widgets = [])
if (widget.insertAt == null) { widgets.push(widget) }
else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) }
widget.line = line
if (cm && !lineIsHidden(doc, line)) {
var aboveVisible = heightAtLine(line) < doc.scrollTop
updateLineHeight(line, line.height + widgetHeight(widget))
if (aboveVisible) { addToScrollPos(cm, null, widget.height) }
cm.curOp.forceUpdate = true
}
return true
})
return widget
}
// TEXTMARKERS
// Created with markText and setBookmark methods. A TextMarker is a
// handle that can be used to clear or find a marked position in the
// document. Line objects hold arrays (markedSpans) containing
// {from, to, marker} object pointing to such marker objects, and
// indicating that such a marker is present on that line. Multiple
// lines may point to the same marker when it spans across lines.
// The spans will have null for their from/to properties when the
// marker continues beyond the start/end of the line. Markers have
// links back to the lines they currently touch.
// Collapsed markers have unique ids, in order to be able to order
// them, which is needed for uniquely determining an outer marker
// when they overlap (they may nest, but not partially overlap).
var nextMarkerId = 0
function TextMarker(doc, type) {
this.lines = []
this.type = type
this.doc = doc
this.id = ++nextMarkerId
}
eventMixin(TextMarker)
// Clear the marker.
TextMarker.prototype.clear = function() {
var this$1 = this;
if (this.explicitlyCleared) { return }
var cm = this.doc.cm, withOp = cm && !cm.curOp
if (withOp) { startOperation(cm) }
if (hasHandler(this, "clear")) {
var found = this.find()
if (found) { signalLater(this, "clear", found.from, found.to) }
}
var min = null, max = null
for (var i = 0; i < this.lines.length; ++i) {
var line = this$1.lines[i]
var span = getMarkedSpanFor(line.markedSpans, this$1)
if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text") }
else if (cm) {
if (span.to != null) { max = lineNo(line) }
if (span.from != null) { min = lineNo(line) }
}
line.markedSpans = removeMarkedSpan(line.markedSpans, span)
if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
{ updateLineHeight(line, textHeight(cm.display)) }
}
if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual)
if (len > cm.display.maxLineLength) {
cm.display.maxLine = visual
cm.display.maxLineLength = len
cm.display.maxLineChanged = true
}
} }
if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) }
this.lines.length = 0
this.explicitlyCleared = true
if (this.atomic && this.doc.cantEdit) {
this.doc.cantEdit = false
if (cm) { reCheckSelection(cm.doc) }
}
if (cm) { signalLater(cm, "markerCleared", cm, this) }
if (withOp) { endOperation(cm) }
if (this.parent) { this.parent.clear() }
}
// Find the position of the marker in the document. Returns a {from,
// to} object by default. Side can be passed to get a specific side
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
// Pos objects returned contain a line object, rather than a line
// number (used to prevent looking up the same line twice).
TextMarker.prototype.find = function(side, lineObj) {
var this$1 = this;
if (side == null && this.type == "bookmark") { side = 1 }
var from, to
for (var i = 0; i < this.lines.length; ++i) {
var line = this$1.lines[i]
var span = getMarkedSpanFor(line.markedSpans, this$1)
if (span.from != null) {
from = Pos(lineObj ? line : lineNo(line), span.from)
if (side == -1) { return from }
}
if (span.to != null) {
to = Pos(lineObj ? line : lineNo(line), span.to)
if (side == 1) { return to }
}
}
return from && {from: from, to: to}
}
// Signals that the marker's widget changed, and surrounding layout
// should be recomputed.
TextMarker.prototype.changed = function() {
var pos = this.find(-1, true), widget = this, cm = this.doc.cm
if (!pos || !cm) { return }
runInOp(cm, function () {
var line = pos.line, lineN = lineNo(pos.line)
var view = findViewForLine(cm, lineN)
if (view) {
clearLineMeasurementCacheFor(view)
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
}
cm.curOp.updateMaxLine = true
if (!lineIsHidden(widget.doc, line) && widget.height != null) {
var oldHeight = widget.height
widget.height = null
var dHeight = widgetHeight(widget) - oldHeight
if (dHeight)
{ updateLineHeight(line, line.height + dHeight) }
}
})
}
TextMarker.prototype.attachLine = function(line) {
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
{ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) }
}
this.lines.push(line)
}
TextMarker.prototype.detachLine = function(line) {
this.lines.splice(indexOf(this.lines, line), 1)
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp
;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
}
}
// Create a marker, wire it up to the right lines, and
function markText(doc, from, to, options, type) {
// Shared markers (across linked documents) are handled separately
// (markTextShared will call out to this again, once per
// document).
if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
// Ensure we are in an operation.
if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
var marker = new TextMarker(doc, type), diff = cmp(from, to)
if (options) { copyObj(options, marker, false) }
// Don't connect empty markers unless clearWhenEmpty is false
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
{ return marker }
if (marker.replacedWith) {
// Showing up as a widget implies collapsed (widget replaces text)
marker.collapsed = true
marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget")
if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true") }
if (options.insertLeft) { marker.widgetNode.insertLeft = true }
}
if (marker.collapsed) {
if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
{ throw new Error("Inserting collapsed marker partially overlapping an existing one") }
seeCollapsedSpans()
}
if (marker.addToHistory)
{ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN) }
var curLine = from.line, cm = doc.cm, updateMaxLine
doc.iter(curLine, to.line + 1, function (line) {
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
{ updateMaxLine = true }
if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) }
addMarkedSpan(line, new MarkedSpan(marker,
curLine == from.line ? from.ch : null,
curLine == to.line ? to.ch : null))
++curLine
})
// lineIsHidden depends on the presence of the spans, so needs a second pass
if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) }
}) }
if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }) }
if (marker.readOnly) {
seeReadOnlySpans()
if (doc.history.done.length || doc.history.undone.length)
{ doc.clearHistory() }
}
if (marker.collapsed) {
marker.id = ++nextMarkerId
marker.atomic = true
}
if (cm) {
// Sync editor state
if (updateMaxLine) { cm.curOp.updateMaxLine = true }
if (marker.collapsed)
{ regChange(cm, from.line, to.line + 1) }
else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
{ for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text") } }
if (marker.atomic) { reCheckSelection(cm.doc) }
signalLater(cm, "markerAdded", cm, marker)
}
return marker
}
// SHARED TEXTMARKERS
// A shared marker spans multiple linked documents. It is
// implemented as a meta-marker-object controlling multiple normal
// markers.
function SharedTextMarker(markers, primary) {
var this$1 = this;
this.markers = markers
this.primary = primary
for (var i = 0; i < markers.length; ++i)
{ markers[i].parent = this$1 }
}
eventMixin(SharedTextMarker)
SharedTextMarker.prototype.clear = function() {
var this$1 = this;
if (this.explicitlyCleared) { return }
this.explicitlyCleared = true
for (var i = 0; i < this.markers.length; ++i)
{ this$1.markers[i].clear() }
signalLater(this, "clear")
}
SharedTextMarker.prototype.find = function(side, lineObj) {
return this.primary.find(side, lineObj)
}
function markTextShared(doc, from, to, options, type) {
options = copyObj(options)
options.shared = false
var markers = [markText(doc, from, to, options, type)], primary = markers[0]
var widget = options.widgetNode
linkedDocs(doc, function (doc) {
if (widget) { options.widgetNode = widget.cloneNode(true) }
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
for (var i = 0; i < doc.linked.length; ++i)
{ if (doc.linked[i].isParent) { return } }
primary = lst(markers)
})
return new SharedTextMarker(markers, primary)
}
function findSharedMarkers(doc) {
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
}
function copySharedMarkers(doc, markers) {
for (var i = 0; i < markers.length; i++) {
var marker = markers[i], pos = marker.find()
var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
if (cmp(mFrom, mTo)) {
var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
marker.markers.push(subMark)
subMark.parent = marker
}
}
}
function detachSharedMarkers(markers) {
var loop = function ( i ) {
var marker = markers[i], linked = [marker.primary.doc]
linkedDocs(marker.primary.doc, function (d) { return linked.push(d); })
for (var j = 0; j < marker.markers.length; j++) {
var subMarker = marker.markers[j]
if (indexOf(linked, subMarker.doc) == -1) {
subMarker.parent = null
marker.markers.splice(j--, 1)
}
}
};
for (var i = 0; i < markers.length; i++) loop( i );
}
var nextDocId = 0
var Doc = function(text, mode, firstLine, lineSep) {
if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep) }
if (firstLine == null) { firstLine = 0 }
BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
this.first = firstLine
this.scrollTop = this.scrollLeft = 0
this.cantEdit = false
this.cleanGeneration = 1
this.frontier = firstLine
var start = Pos(firstLine, 0)
this.sel = simpleSelection(start)
this.history = new History(null)
this.id = ++nextDocId
this.modeOption = mode
this.lineSep = lineSep
this.extend = false
if (typeof text == "string") { text = this.splitLines(text) }
updateDoc(this, {from: start, to: start, text: text})
setSelection(this, simpleSelection(start), sel_dontScroll)
}
Doc.prototype = createObj(BranchChunk.prototype, {
constructor: Doc,
// Iterate over the document. Supports two forms -- with only one
// argument, it calls that for each line in the document. With
// three, it iterates over the range given by the first two (with
// the second being non-inclusive).
iter: function(from, to, op) {
if (op) { this.iterN(from - this.first, to - from, op) }
else { this.iterN(this.first, this.first + this.size, from) }
},
// Non-public interface for adding and removing lines.
insert: function(at, lines) {
var height = 0
for (var i = 0; i < lines.length; ++i) { height += lines[i].height }
this.insertInner(at - this.first, lines, height)
},
remove: function(at, n) { this.removeInner(at - this.first, n) },
// From here, the methods are part of the public interface. Most
// are also available from CodeMirror (editor) instances.
getValue: function(lineSep) {
var lines = getLines(this, this.first, this.first + this.size)
if (lineSep === false) { return lines }
return lines.join(lineSep || this.lineSeparator())
},
setValue: docMethodOp(function(code) {
var top = Pos(this.first, 0), last = this.first + this.size - 1
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
text: this.splitLines(code), origin: "setValue", full: true}, true)
setSelection(this, simpleSelection(top))
}),
replaceRange: function(code, from, to, origin) {
from = clipPos(this, from)
to = to ? clipPos(this, to) : from
replaceRange(this, code, from, to, origin)
},
getRange: function(from, to, lineSep) {
var lines = getBetween(this, clipPos(this, from), clipPos(this, to))
if (lineSep === false) { return lines }
return lines.join(lineSep || this.lineSeparator())
},
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
getLineNumber: function(line) {return lineNo(line)},
getLineHandleVisualStart: function(line) {
if (typeof line == "number") { line = getLine(this, line) }
return visualLine(line)
},
lineCount: function() {return this.size},
firstLine: function() {return this.first},
lastLine: function() {return this.first + this.size - 1},
clipPos: function(pos) {return clipPos(this, pos)},
getCursor: function(start) {
var range = this.sel.primary(), pos
if (start == null || start == "head") { pos = range.head }
else if (start == "anchor") { pos = range.anchor }
else if (start == "end" || start == "to" || start === false) { pos = range.to() }
else { pos = range.from() }
return pos
},
listSelections: function() { return this.sel.ranges },
somethingSelected: function() {return this.sel.somethingSelected()},
setCursor: docMethodOp(function(line, ch, options) {
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
}),
setSelection: docMethodOp(function(anchor, head, options) {
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
}),
extendSelection: docMethodOp(function(head, other, options) {
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
}),
extendSelections: docMethodOp(function(heads, options) {
extendSelections(this, clipPosArray(this, heads), options)
}),
extendSelectionsBy: docMethodOp(function(f, options) {
var heads = map(this.sel.ranges, f)
extendSelections(this, clipPosArray(this, heads), options)
}),
setSelections: docMethodOp(function(ranges, primary, options) {
var this$1 = this;
if (!ranges.length) { return }
var out = []
for (var i = 0; i < ranges.length; i++)
{ out[i] = new Range(clipPos(this$1, ranges[i].anchor),
clipPos(this$1, ranges[i].head)) }
if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) }
setSelection(this, normalizeSelection(out, primary), options)
}),
addSelection: docMethodOp(function(anchor, head, options) {
var ranges = this.sel.ranges.slice(0)
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)
}),
getSelection: function(lineSep) {
var this$1 = this;
var ranges = this.sel.ranges, lines
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
lines = lines ? lines.concat(sel) : sel
}
if (lineSep === false) { return lines }
else { return lines.join(lineSep || this.lineSeparator()) }
},
getSelections: function(lineSep) {
var this$1 = this;
var parts = [], ranges = this.sel.ranges
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) }
parts[i] = sel
}
return parts
},
replaceSelection: function(code, collapse, origin) {
var dup = []
for (var i = 0; i < this.sel.ranges.length; i++)
{ dup[i] = code }
this.replaceSelections(dup, collapse, origin || "+input")
},
replaceSelections: docMethodOp(function(code, collapse, origin) {
var this$1 = this;
var changes = [], sel = this.sel
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i]
changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin}
}
var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
{ makeChange(this$1, changes[i$1]) }
if (newSel) { setSelectionReplaceHistory(this, newSel) }
else if (this.cm) { ensureCursorVisible(this.cm) }
}),
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
setExtending: function(val) {this.extend = val},
getExtending: function() {return this.extend},
historySize: function() {
var hist = this.history, done = 0, undone = 0
for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } }
for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } }
return {undo: done, redo: undone}
},
clearHistory: function() {this.history = new History(this.history.maxGeneration)},
markClean: function() {
this.cleanGeneration = this.changeGeneration(true)
},
changeGeneration: function(forceSplit) {
if (forceSplit)
{ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null }
return this.history.generation
},
isClean: function (gen) {
return this.history.generation == (gen || this.cleanGeneration)
},
getHistory: function() {
return {done: copyHistoryArray(this.history.done),
undone: copyHistoryArray(this.history.undone)}
},
setHistory: function(histData) {
var hist = this.history = new History(this.history.maxGeneration)
hist.done = copyHistoryArray(histData.done.slice(0), null, true)
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
},
addLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
var prop = where == "text" ? "textClass"
: where == "background" ? "bgClass"
: where == "gutter" ? "gutterClass" : "wrapClass"
if (!line[prop]) { line[prop] = cls }
else if (classTest(cls).test(line[prop])) { return false }
else { line[prop] += " " + cls }
return true
})
}),
removeLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
var prop = where == "text" ? "textClass"
: where == "background" ? "bgClass"
: where == "gutter" ? "gutterClass" : "wrapClass"
var cur = line[prop]
if (!cur) { return false }
else if (cls == null) { line[prop] = null }
else {
var found = cur.match(classTest(cls))
if (!found) { return false }
var end = found.index + found[0].length
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
}
return true
})
}),
addLineWidget: docMethodOp(function(handle, node, options) {
return addLineWidget(this, handle, node, options)
}),
removeLineWidget: function(widget) { widget.clear() },
markText: function(from, to, options) {
return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
},
setBookmark: function(pos, options) {
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
insertLeft: options && options.insertLeft,
clearWhenEmpty: false, shared: options && options.shared,
handleMouseEvents: options && options.handleMouseEvents}
pos = clipPos(this, pos)
return markText(this, pos, pos, realOpts, "bookmark")
},
findMarksAt: function(pos) {
pos = clipPos(this, pos)
var markers = [], spans = getLine(this, pos.line).markedSpans
if (spans) { for (var i = 0; i < spans.length; ++i) {
var span = spans[i]
if ((span.from == null || span.from <= pos.ch) &&
(span.to == null || span.to >= pos.ch))
{ markers.push(span.marker.parent || span.marker) }
} }
return markers
},
findMarks: function(from, to, filter) {
from = clipPos(this, from); to = clipPos(this, to)
var found = [], lineNo = from.line
this.iter(from.line, to.line + 1, function (line) {
var spans = line.markedSpans
if (spans) { for (var i = 0; i < spans.length; i++) {
var span = spans[i]
if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
span.from == null && lineNo != from.line ||
span.from != null && lineNo == to.line && span.from >= to.ch) &&
(!filter || filter(span.marker)))
{ found.push(span.marker.parent || span.marker) }
} }
++lineNo
})
return found
},
getAllMarks: function() {
var markers = []
this.iter(function (line) {
var sps = line.markedSpans
if (sps) { for (var i = 0; i < sps.length; ++i)
{ if (sps[i].from != null) { markers.push(sps[i].marker) } } }
})
return markers
},
posFromIndex: function(off) {
var ch, lineNo = this.first, sepSize = this.lineSeparator().length
this.iter(function (line) {
var sz = line.text.length + sepSize
if (sz > off) { ch = off; return true }
off -= sz
++lineNo
})
return clipPos(this, Pos(lineNo, ch))
},
indexFromPos: function (coords) {
coords = clipPos(this, coords)
var index = coords.ch
if (coords.line < this.first || coords.ch < 0) { return 0 }
var sepSize = this.lineSeparator().length
this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
index += line.text.length + sepSize
})
return index
},
copy: function(copyHistory) {
var doc = new Doc(getLines(this, this.first, this.first + this.size),
this.modeOption, this.first, this.lineSep)
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
doc.sel = this.sel
doc.extend = false
if (copyHistory) {
doc.history.undoDepth = this.history.undoDepth
doc.setHistory(this.getHistory())
}
return doc
},
linkedDoc: function(options) {
if (!options) { options = {} }
var from = this.first, to = this.first + this.size
if (options.from != null && options.from > from) { from = options.from }
if (options.to != null && options.to < to) { to = options.to }
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep)
if (options.sharedHist) { copy.history = this.history
; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
copySharedMarkers(copy, findSharedMarkers(this))
return copy
},
unlinkDoc: function(other) {
var this$1 = this;
if (other instanceof CodeMirror) { other = other.doc }
if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
var link = this$1.linked[i]
if (link.doc != other) { continue }
this$1.linked.splice(i, 1)
other.unlinkDoc(this$1)
detachSharedMarkers(findSharedMarkers(this$1))
break
} }
// If the histories were shared, split them again
if (other.history == this.history) {
var splitIds = [other.id]
linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true)
other.history = new History(null)
other.history.done = copyHistoryArray(this.history.done, splitIds)
other.history.undone = copyHistoryArray(this.history.undone, splitIds)
}
},
iterLinkedDocs: function(f) {linkedDocs(this, f)},
getMode: function() {return this.mode},
getEditor: function() {return this.cm},
splitLines: function(str) {
if (this.lineSep) { return str.split(this.lineSep) }
return splitLinesAuto(str)
},
lineSeparator: function() { return this.lineSep || "\n" }
})
// Public alias.
Doc.prototype.eachLine = Doc.prototype.iter
// Kludge to work around strange IE behavior where it'll sometimes
// re-fire a series of drag-related events right after the drop (#1551)
var lastDrop = 0
function onDrop(e) {
var cm = this
clearDragCursor(cm)
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
{ return }
e_preventDefault(e)
if (ie) { lastDrop = +new Date }
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
if (!pos || cm.isReadOnly()) { return }
// Might be a file drop, in which case we simply extract the text
// and insert it.
if (files && files.length && window.FileReader && window.File) {
var n = files.length, text = Array(n), read = 0
var loadFile = function (file, i) {
if (cm.options.allowDropFileTypes &&
indexOf(cm.options.allowDropFileTypes, file.type) == -1)
{ return }
var reader = new FileReader
reader.onload = operation(cm, function () {
var content = reader.result
if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = "" }
text[i] = content
if (++read == n) {
pos = clipPos(cm.doc, pos)
var change = {from: pos, to: pos,
text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
origin: "paste"}
makeChange(cm.doc, change)
setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))
}
})
reader.readAsText(file)
}
for (var i = 0; i < n; ++i) { loadFile(files[i], i) }
} else { // Normal drop
// Don't do a replace if the drop happened inside of the selected text.
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
cm.state.draggingText(e)
// Ensure the editor is re-focused
setTimeout(function () { return cm.display.input.focus(); }, 20)
return
}
try {
var text$1 = e.dataTransfer.getData("Text")
if (text$1) {
var selected
if (cm.state.draggingText && !cm.state.draggingText.copy)
{ selected = cm.listSelections() }
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
{ replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag") } }
cm.replaceSelection(text$1, "around", "paste")
cm.display.input.focus()
}
}
catch(e){}
}
}
function onDragStart(cm, e) {
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
e.dataTransfer.setData("Text", cm.getSelection())
e.dataTransfer.effectAllowed = "copyMove"
// Use dummy image instead of default browsers image.
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
if (e.dataTransfer.setDragImage && !safari) {
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
if (presto) {
img.width = img.height = 1
cm.display.wrapper.appendChild(img)
// Force a relayout, or Opera won't use our image for some obscure reason
img._top = img.offsetTop
}
e.dataTransfer.setDragImage(img, 0, 0)
if (presto) { img.parentNode.removeChild(img) }
}
}
function onDragOver(cm, e) {
var pos = posFromMouse(cm, e)
if (!pos) { return }
var frag = document.createDocumentFragment()
drawSelectionCursor(cm, pos, frag)
if (!cm.display.dragCursor) {
cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
}
removeChildrenAndAdd(cm.display.dragCursor, frag)
}
function clearDragCursor(cm) {
if (cm.display.dragCursor) {
cm.display.lineSpace.removeChild(cm.display.dragCursor)
cm.display.dragCursor = null
}
}
// These must be handled carefully, because naively registering a
// handler for each editor will cause the editors to never be
// garbage collected.
function forEachCodeMirror(f) {
if (!document.body.getElementsByClassName) { return }
var byClass = document.body.getElementsByClassName("CodeMirror")
for (var i = 0; i < byClass.length; i++) {
var cm = byClass[i].CodeMirror
if (cm) { f(cm) }
}
}
var globalsRegistered = false
function ensureGlobalHandlers() {
if (globalsRegistered) { return }
registerGlobalHandlers()
globalsRegistered = true
}
function registerGlobalHandlers() {
// When the window resizes, we need to refresh active editors.
var resizeTimer
on(window, "resize", function () {
if (resizeTimer == null) { resizeTimer = setTimeout(function () {
resizeTimer = null
forEachCodeMirror(onResize)
}, 100) }
})
// When the window loses focus, we want to show the editor as blurred
on(window, "blur", function () { return forEachCodeMirror(onBlur); })
}
// Called when the window resizes
function onResize(cm) {
var d = cm.display
if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
{ return }
// Might be a text scaling operation, clear size caches.
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
d.scrollbarsClipped = false
cm.setSize()
}
var keyNames = {
3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
}
// Number keys
for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) }
// Alphabetic keys
for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) }
// Function keys
for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2 }
var keyMap = {}
keyMap.basic = {
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
"Tab": "defaultTab", "Shift-Tab": "indentAuto",
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
"Esc": "singleSelection"
}
// Note that the save and find-related commands aren't defined by
// default. User code or addons can define them. Unknown commands
// are simply ignored.
keyMap.pcDefault = {
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
fallthrough: "basic"
}
// Very basic readline/emacs-style bindings, which are standard on Mac.
keyMap.emacsy = {
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
"Ctrl-O": "openLine"
}
keyMap.macDefault = {
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
fallthrough: ["basic", "emacsy"]
}
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
// KEYMAP DISPATCH
function normalizeKeyName(name) {
var parts = name.split(/-(?!$)/)
name = parts[parts.length - 1]
var alt, ctrl, shift, cmd
for (var i = 0; i < parts.length - 1; i++) {
var mod = parts[i]
if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true }
else if (/^a(lt)?$/i.test(mod)) { alt = true }
else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true }
else if (/^s(hift)?$/i.test(mod)) { shift = true }
else { throw new Error("Unrecognized modifier name: " + mod) }
}
if (alt) { name = "Alt-" + name }
if (ctrl) { name = "Ctrl-" + name }
if (cmd) { name = "Cmd-" + name }
if (shift) { name = "Shift-" + name }
return name
}
// This is a kludge to keep keymaps mostly working as raw objects
// (backwards compatibility) while at the same time support features
// like normalization and multi-stroke key bindings. It compiles a
// new normalized keymap, and then updates the old object to reflect
// this.
function normalizeKeyMap(keymap) {
var copy = {}
for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
var value = keymap[keyname]
if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
if (value == "...") { delete keymap[keyname]; continue }
var keys = map(keyname.split(" "), normalizeKeyName)
for (var i = 0; i < keys.length; i++) {
var val = void 0, name = void 0
if (i == keys.length - 1) {
name = keys.join(" ")
val = value
} else {
name = keys.slice(0, i + 1).join(" ")
val = "..."
}
var prev = copy[name]
if (!prev) { copy[name] = val }
else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
}
delete keymap[keyname]
} }
for (var prop in copy) { keymap[prop] = copy[prop] }
return keymap
}
function lookupKey(key, map, handle, context) {
map = getKeyMap(map)
var found = map.call ? map.call(key, context) : map[key]
if (found === false) { return "nothing" }
if (found === "...") { return "multi" }
if (found != null && handle(found)) { return "handled" }
if (map.fallthrough) {
if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
{ return lookupKey(key, map.fallthrough, handle, context) }
for (var i = 0; i < map.fallthrough.length; i++) {
var result = lookupKey(key, map.fallthrough[i], handle, context)
if (result) { return result }
}
}
}
// Modifier key presses don't count as 'real' key presses for the
// purpose of keymap fallthrough.
function isModifierKey(value) {
var name = typeof value == "string" ? value : keyNames[value.keyCode]
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
}
// Look up the name of a key as indicated by an event object.
function keyName(event, noShift) {
if (presto && event.keyCode == 34 && event["char"]) { return false }
var base = keyNames[event.keyCode], name = base
if (name == null || event.altGraphKey) { return false }
if (event.altKey && base != "Alt") { name = "Alt-" + name }
if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name }
if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name }
if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name }
return name
}
function getKeyMap(val) {
return typeof val == "string" ? keyMap[val] : val
}
// Helper for deleting text near the selection(s), used to implement
// backspace, delete, and similar functionality.
function deleteNearSelection(cm, compute) {
var ranges = cm.doc.sel.ranges, kill = []
// Build up a set of ranges to kill first, merging overlapping
// ranges.
for (var i = 0; i < ranges.length; i++) {
var toKill = compute(ranges[i])
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
var replaced = kill.pop()
if (cmp(replaced.from, toKill.from) < 0) {
toKill.from = replaced.from
break
}
}
kill.push(toKill)
}
// Next, remove those actual ranges.
runInOp(cm, function () {
for (var i = kill.length - 1; i >= 0; i--)
{ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete") }
ensureCursorVisible(cm)
})
}
// Commands are parameter-less actions that can be performed on an
// editor, mostly used for keybindings.
var commands = {
selectAll: selectAll,
singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
killLine: function (cm) { return deleteNearSelection(cm, function (range) {
if (range.empty()) {
var len = getLine(cm.doc, range.head.line).text.length
if (range.head.ch == len && range.head.line < cm.lastLine())
{ return {from: range.head, to: Pos(range.head.line + 1, 0)} }
else
{ return {from: range.head, to: Pos(range.head.line, len)} }
} else {
return {from: range.from(), to: range.to()}
}
}); },
deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
from: Pos(range.from().line, 0),
to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
}); }); },
delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
from: Pos(range.from().line, 0), to: range.from()
}); }); },
delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
var top = cm.charCoords(range.head, "div").top + 5
var leftPos = cm.coordsChar({left: 0, top: top}, "div")
return {from: leftPos, to: range.from()}
}); },
delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
var top = cm.charCoords(range.head, "div").top + 5
var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
return {from: range.from(), to: rightPos }
}); },
undo: function (cm) { return cm.undo(); },
redo: function (cm) { return cm.redo(); },
undoSelection: function (cm) { return cm.undoSelection(); },
redoSelection: function (cm) { return cm.redoSelection(); },
goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
{origin: "+move", bias: 1}
); },
goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
{origin: "+move", bias: 1}
); },
goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
{origin: "+move", bias: -1}
); },
goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
var top = cm.charCoords(range.head, "div").top + 5
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
}, sel_move); },
goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
var top = cm.charCoords(range.head, "div").top + 5
return cm.coordsChar({left: 0, top: top}, "div")
}, sel_move); },
goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
var top = cm.charCoords(range.head, "div").top + 5
var pos = cm.coordsChar({left: 0, top: top}, "div")
if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
return pos
}, sel_move); },
goLineUp: function (cm) { return cm.moveV(-1, "line"); },
goLineDown: function (cm) { return cm.moveV(1, "line"); },
goPageUp: function (cm) { return cm.moveV(-1, "page"); },
goPageDown: function (cm) { return cm.moveV(1, "page"); },
goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
goCharRight: function (cm) { return cm.moveH(1, "char"); },
goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
goColumnRight: function (cm) { return cm.moveH(1, "column"); },
goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
goGroupRight: function (cm) { return cm.moveH(1, "group"); },
goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
goWordRight: function (cm) { return cm.moveH(1, "word"); },
delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
indentAuto: function (cm) { return cm.indentSelection("smart"); },
indentMore: function (cm) { return cm.indentSelection("add"); },
indentLess: function (cm) { return cm.indentSelection("subtract"); },
insertTab: function (cm) { return cm.replaceSelection("\t"); },
insertSoftTab: function (cm) {
var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize
for (var i = 0; i < ranges.length; i++) {
var pos = ranges[i].from()
var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)
spaces.push(spaceStr(tabSize - col % tabSize))
}
cm.replaceSelections(spaces)
},
defaultTab: function (cm) {
if (cm.somethingSelected()) { cm.indentSelection("add") }
else { cm.execCommand("insertTab") }
},
// Swap the two chars left and right of each selection's head.
// Move cursor behind the two swapped characters afterwards.
//
// Doesn't consider line feeds a character.
// Doesn't scan more than one line above to find a character.
// Doesn't do anything on an empty line.
// Doesn't do anything with non-empty selections.
transposeChars: function (cm) { return runInOp(cm, function () {
var ranges = cm.listSelections(), newSel = []
for (var i = 0; i < ranges.length; i++) {
if (!ranges[i].empty()) { continue }
var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text
if (line) {
if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1) }
if (cur.ch > 0) {
cur = new Pos(cur.line, cur.ch + 1)
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
Pos(cur.line, cur.ch - 2), cur, "+transpose")
} else if (cur.line > cm.doc.first) {
var prev = getLine(cm.doc, cur.line - 1).text
if (prev) {
cur = new Pos(cur.line, 1)
cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
prev.charAt(prev.length - 1),
Pos(cur.line - 1, prev.length - 1), cur, "+transpose")
}
}
}
newSel.push(new Range(cur, cur))
}
cm.setSelections(newSel)
}); },
newlineAndIndent: function (cm) { return runInOp(cm, function () {
var sels = cm.listSelections()
for (var i = sels.length - 1; i >= 0; i--)
{ cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input") }
sels = cm.listSelections()
for (var i$1 = 0; i$1 < sels.length; i$1++)
{ cm.indentLine(sels[i$1].from().line, null, true) }
ensureCursorVisible(cm)
}); },
openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
}
function lineStart(cm, lineN) {
var line = getLine(cm.doc, lineN)
var visual = visualLine(line)
if (visual != line) { lineN = lineNo(visual) }
var order = getOrder(visual)
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual)
return Pos(lineN, ch)
}
function lineEnd(cm, lineN) {
var merged, line = getLine(cm.doc, lineN)
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line
lineN = null
}
var order = getOrder(line)
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line)
return Pos(lineN == null ? lineNo(line) : lineN, ch)
}
function lineStartSmart(cm, pos) {
var start = lineStart(cm, pos.line)
var line = getLine(cm.doc, start.line)
var order = getOrder(line)
if (!order || order[0].level == 0) {
var firstNonWS = Math.max(0, line.text.search(/\S/))
var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch
return Pos(start.line, inWS ? 0 : firstNonWS)
}
return start
}
// Run a handler that was bound to a key.
function doHandleBinding(cm, bound, dropShift) {
if (typeof bound == "string") {
bound = commands[bound]
if (!bound) { return false }
}
// Ensure previous input has been read, so that the handler sees a
// consistent view of the document
cm.display.input.ensurePolled()
var prevShift = cm.display.shift, done = false
try {
if (cm.isReadOnly()) { cm.state.suppressEdits = true }
if (dropShift) { cm.display.shift = false }
done = bound(cm) != Pass
} finally {
cm.display.shift = prevShift
cm.state.suppressEdits = false
}
return done
}
function lookupKeyForEditor(cm, name, handle) {
for (var i = 0; i < cm.state.keyMaps.length; i++) {
var result = lookupKey(name, cm.state.keyMaps[i], handle, cm)
if (result) { return result }
}
return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
|| lookupKey(name, cm.options.keyMap, handle, cm)
}
var stopSeq = new Delayed
function dispatchKey(cm, name, e, handle) {
var seq = cm.state.keySeq
if (seq) {
if (isModifierKey(name)) { return "handled" }
stopSeq.set(50, function () {
if (cm.state.keySeq == seq) {
cm.state.keySeq = null
cm.display.input.reset()
}
})
name = seq + " " + name
}
var result = lookupKeyForEditor(cm, name, handle)
if (result == "multi")
{ cm.state.keySeq = name }
if (result == "handled")
{ signalLater(cm, "keyHandled", cm, name, e) }
if (result == "handled" || result == "multi") {
e_preventDefault(e)
restartBlink(cm)
}
if (seq && !result && /\'$/.test(name)) {
e_preventDefault(e)
return true
}
return !!result
}
// Handle a key from the keydown event.
function handleKeyBinding(cm, e) {
var name = keyName(e, true)
if (!name) { return false }
if (e.shiftKey && !cm.state.keySeq) {
// First try to resolve full name (including 'Shift-'). Failing
// that, see if there is a cursor-motion command (starting with
// 'go') bound to the keyname without 'Shift-'.
return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
|| dispatchKey(cm, name, e, function (b) {
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
{ return doHandleBinding(cm, b) }
})
} else {
return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
}
}
// Handle a key from the keypress event
function handleCharBinding(cm, e, ch) {
return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
}
var lastStoppedKey = null
function onKeyDown(e) {
var cm = this
cm.curOp.focus = activeElt()
if (signalDOMEvent(cm, e)) { return }
// IE does strange things with escape.
if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false }
var code = e.keyCode
cm.display.shift = code == 16 || e.shiftKey
var handled = handleKeyBinding(cm, e)
if (presto) {
lastStoppedKey = handled ? code : null
// Opera has no cut event... we try to at least catch the key combo
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
{ cm.replaceSelection("", null, "cut") }
}
// Turn mouse into crosshair when Alt is held on Mac.
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
{ showCrossHair(cm) }
}
function showCrossHair(cm) {
var lineDiv = cm.display.lineDiv
addClass(lineDiv, "CodeMirror-crosshair")
function up(e) {
if (e.keyCode == 18 || !e.altKey) {
rmClass(lineDiv, "CodeMirror-crosshair")
off(document, "keyup", up)
off(document, "mouseover", up)
}
}
on(document, "keyup", up)
on(document, "mouseover", up)
}
function onKeyUp(e) {
if (e.keyCode == 16) { this.doc.sel.shift = false }
signalDOMEvent(this, e)
}
function onKeyPress(e) {
var cm = this
if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
var keyCode = e.keyCode, charCode = e.charCode
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
var ch = String.fromCharCode(charCode == null ? keyCode : charCode)
// Some browsers fire keypress events for backspace
if (ch == "\x08") { return }
if (handleCharBinding(cm, e, ch)) { return }
cm.display.input.onKeyPress(e)
}
// A mouse down can be a single click, double click, triple click,
// start of selection drag, start of text drag, new cursor
// (ctrl-click), rectangle drag (alt-drag), or xwin
// middle-click-paste. Or it might be a click on something we should
// not interfere with, such as a scrollbar or widget.
function onMouseDown(e) {
var cm = this, display = cm.display
if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
display.shift = e.shiftKey
if (eventInWidget(display, e)) {
if (!webkit) {
// Briefly turn off draggability, to allow widgets to do
// normal dragging things.
display.scroller.draggable = false
setTimeout(function () { return display.scroller.draggable = true; }, 100)
}
return
}
if (clickInGutter(cm, e)) { return }
var start = posFromMouse(cm, e)
window.focus()
switch (e_button(e)) {
case 1:
// #3261: make sure, that we're not starting a second selection
if (cm.state.selectingText)
{ cm.state.selectingText(e) }
else if (start)
{ leftButtonDown(cm, e, start) }
else if (e_target(e) == display.scroller)
{ e_preventDefault(e) }
break
case 2:
if (webkit) { cm.state.lastMiddleDown = +new Date }
if (start) { extendSelection(cm.doc, start) }
setTimeout(function () { return display.input.focus(); }, 20)
e_preventDefault(e)
break
case 3:
if (captureRightClick) { onContextMenu(cm, e) }
else { delayBlurEvent(cm) }
break
}
}
var lastClick;
var lastDoubleClick;
function leftButtonDown(cm, e, start) {
if (ie) { setTimeout(bind(ensureFocus, cm), 0) }
else { cm.curOp.focus = activeElt() }
var now = +new Date, type
if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
type = "triple"
} else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
type = "double"
lastDoubleClick = {time: now, pos: start}
} else {
type = "single"
lastClick = {time: now, pos: start}
}
var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained
if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
type == "single" && (contained = sel.contains(start)) > -1 &&
(cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
(cmp(contained.to(), start) > 0 || start.xRel < 0))
{ leftButtonStartDrag(cm, e, start, modifier) }
else
{ leftButtonSelect(cm, e, start, type, modifier) }
}
// Start a text drag. When it ends, see if any dragging actually
// happen, and treat as a click if it didn't.
function leftButtonStartDrag(cm, e, start, modifier) {
var display = cm.display, startTime = +new Date
var dragEnd = operation(cm, function (e2) {
if (webkit) { display.scroller.draggable = false }
cm.state.draggingText = false
off(document, "mouseup", dragEnd)
off(display.scroller, "drop", dragEnd)
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
e_preventDefault(e2)
if (!modifier && +new Date - 200 < startTime)
{ extendSelection(cm.doc, start) }
// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
if (webkit || ie && ie_version == 9)
{ setTimeout(function () {document.body.focus(); display.input.focus()}, 20) }
else
{ display.input.focus() }
}
})
// Let the drag handler handle this.
if (webkit) { display.scroller.draggable = true }
cm.state.draggingText = dragEnd
dragEnd.copy = mac ? e.altKey : e.ctrlKey
// IE's approach to draggable
if (display.scroller.dragDrop) { display.scroller.dragDrop() }
on(document, "mouseup", dragEnd)
on(display.scroller, "drop", dragEnd)
}
// Normal selection, as opposed to text dragging.
function leftButtonSelect(cm, e, start, type, addNew) {
var display = cm.display, doc = cm.doc
e_preventDefault(e)
var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges
if (addNew && !e.shiftKey) {
ourIndex = doc.sel.contains(start)
if (ourIndex > -1)
{ ourRange = ranges[ourIndex] }
else
{ ourRange = new Range(start, start) }
} else {
ourRange = doc.sel.primary()
ourIndex = doc.sel.primIndex
}
if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) {
type = "rect"
if (!addNew) { ourRange = new Range(start, start) }
start = posFromMouse(cm, e, true, true)
ourIndex = -1
} else if (type == "double") {
var word = cm.findWordAt(start)
if (cm.display.shift || doc.extend)
{ ourRange = extendRange(doc, ourRange, word.anchor, word.head) }
else
{ ourRange = word }
} else if (type == "triple") {
var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)))
if (cm.display.shift || doc.extend)
{ ourRange = extendRange(doc, ourRange, line.anchor, line.head) }
else
{ ourRange = line }
} else {
ourRange = extendRange(doc, ourRange, start)
}
if (!addNew) {
ourIndex = 0
setSelection(doc, new Selection([ourRange], 0), sel_mouse)
startSel = doc.sel
} else if (ourIndex == -1) {
ourIndex = ranges.length
setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
{scroll: false, origin: "*mouse"})
} else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
{scroll: false, origin: "*mouse"})
startSel = doc.sel
} else {
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)
}
var lastPos = start
function extendTo(pos) {
if (cmp(lastPos, pos) == 0) { return }
lastPos = pos
if (type == "rect") {
var ranges = [], tabSize = cm.options.tabSize
var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)
for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
line <= end; line++) {
var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)
if (left == right)
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))) }
else if (text.length > leftPos)
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))) }
}
if (!ranges.length) { ranges.push(new Range(start, start)) }
setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
{origin: "*mouse", scroll: false})
cm.scrollIntoView(pos)
} else {
var oldRange = ourRange
var anchor = oldRange.anchor, head = pos
if (type != "single") {
var range
if (type == "double")
{ range = cm.findWordAt(pos) }
else
{ range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))) }
if (cmp(range.anchor, anchor) > 0) {
head = range.head
anchor = minPos(oldRange.from(), range.anchor)
} else {
head = range.anchor
anchor = maxPos(oldRange.to(), range.head)
}
}
var ranges$1 = startSel.ranges.slice(0)
ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head)
setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse)
}
}
var editorSize = display.wrapper.getBoundingClientRect()
// Used to ensure timeout re-tries don't fire when another extend
// happened in the meantime (clearTimeout isn't reliable -- at
// least on Chrome, the timeouts still happen even when cleared,
// if the clear happens after their scheduled firing time).
var counter = 0
function extend(e) {
var curCount = ++counter
var cur = posFromMouse(cm, e, true, type == "rect")
if (!cur) { return }
if (cmp(cur, lastPos) != 0) {
cm.curOp.focus = activeElt()
extendTo(cur)
var visible = visibleLines(display, doc)
if (cur.line >= visible.to || cur.line < visible.from)
{ setTimeout(operation(cm, function () {if (counter == curCount) { extend(e) }}), 150) }
} else {
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0
if (outside) { setTimeout(operation(cm, function () {
if (counter != curCount) { return }
display.scroller.scrollTop += outside
extend(e)
}), 50) }
}
}
function done(e) {
cm.state.selectingText = false
counter = Infinity
e_preventDefault(e)
display.input.focus()
off(document, "mousemove", move)
off(document, "mouseup", up)
doc.history.lastSelOrigin = null
}
var move = operation(cm, function (e) {
if (!e_button(e)) { done(e) }
else { extend(e) }
})
var up = operation(cm, done)
cm.state.selectingText = up
on(document, "mousemove", move)
on(document, "mouseup", up)
}
// Determines whether an event happened in the gutter, and fires the
// handlers for the corresponding event.
function gutterEvent(cm, e, type, prevent) {
var mX, mY
try { mX = e.clientX; mY = e.clientY }
catch(e) { return false }
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
if (prevent) { e_preventDefault(e) }
var display = cm.display
var lineBox = display.lineDiv.getBoundingClientRect()
if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
mY -= lineBox.top - display.viewOffset
for (var i = 0; i < cm.options.gutters.length; ++i) {
var g = display.gutters.childNodes[i]
if (g && g.getBoundingClientRect().right >= mX) {
var line = lineAtHeight(cm.doc, mY)
var gutter = cm.options.gutters[i]
signal(cm, type, cm, line, gutter, e)
return e_defaultPrevented(e)
}
}
}
function clickInGutter(cm, e) {
return gutterEvent(cm, e, "gutterClick", true)
}
// CONTEXT MENU HANDLING
// To make the context menu work, we need to briefly unhide the
// textarea (making it as unobtrusive as possible) to let the
// right-click take effect on it.
function onContextMenu(cm, e) {
if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
if (signalDOMEvent(cm, e, "contextmenu")) { return }
cm.display.input.onContextMenu(e)
}
function contextMenuInGutter(cm, e) {
if (!hasHandler(cm, "gutterContextMenu")) { return false }
return gutterEvent(cm, e, "gutterContextMenu", false)
}
function themeChanged(cm) {
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-")
clearCaches(cm)
}
var Init = {toString: function(){return "CodeMirror.Init"}}
var defaults = {}
var optionHandlers = {}
function defineOptions(CodeMirror) {
var optionHandlers = CodeMirror.optionHandlers
function option(name, deflt, handle, notOnInit) {
CodeMirror.defaults[name] = deflt
if (handle) { optionHandlers[name] =
notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old) }} : handle }
}
CodeMirror.defineOption = option
// Passed to option handlers when there is no old value.
CodeMirror.Init = Init
// These two are, on init, called from the constructor because they
// have to be initialized before the editor can start at all.
option("value", "", function (cm, val) { return cm.setValue(val); }, true)
option("mode", null, function (cm, val) {
cm.doc.modeOption = val
loadMode(cm)
}, true)
option("indentUnit", 2, loadMode, true)
option("indentWithTabs", false)
option("smartIndent", true)
option("tabSize", 4, function (cm) {
resetModeState(cm)
clearCaches(cm)
regChange(cm)
}, true)
option("lineSeparator", null, function (cm, val) {
cm.doc.lineSep = val
if (!val) { return }
var newBreaks = [], lineNo = cm.doc.first
cm.doc.iter(function (line) {
for (var pos = 0;;) {
var found = line.text.indexOf(val, pos)
if (found == -1) { break }
pos = found + val.length
newBreaks.push(Pos(lineNo, found))
}
lineNo++
})
for (var i = newBreaks.length - 1; i >= 0; i--)
{ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) }
})
option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) {
cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g")
if (old != Init) { cm.refresh() }
})
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true)
option("electricChars", true)
option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
}, true)
option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true)
option("rtlMoveVisually", !windows)
option("wholeLineUpdateBefore", true)
option("theme", "default", function (cm) {
themeChanged(cm)
guttersChanged(cm)
}, true)
option("keyMap", "default", function (cm, val, old) {
var next = getKeyMap(val)
var prev = old != Init && getKeyMap(old)
if (prev && prev.detach) { prev.detach(cm, next) }
if (next.attach) { next.attach(cm, prev || null) }
})
option("extraKeys", null)
option("lineWrapping", false, wrappingChanged, true)
option("gutters", [], function (cm) {
setGuttersForLineNumbers(cm.options)
guttersChanged(cm)
}, true)
option("fixedGutter", true, function (cm, val) {
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"
cm.refresh()
}, true)
option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true)
option("scrollbarStyle", "native", function (cm) {
initScrollbars(cm)
updateScrollbars(cm)
cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)
cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)
}, true)
option("lineNumbers", false, function (cm) {
setGuttersForLineNumbers(cm.options)
guttersChanged(cm)
}, true)
option("firstLineNumber", 1, guttersChanged, true)
option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true)
option("showCursorWhenSelecting", false, updateSelection, true)
option("resetSelectionOnContextMenu", true)
option("lineWiseCopyCut", true)
option("readOnly", false, function (cm, val) {
if (val == "nocursor") {
onBlur(cm)
cm.display.input.blur()
cm.display.disabled = true
} else {
cm.display.disabled = false
}
cm.display.input.readOnlyChanged(val)
})
option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset() }}, true)
option("dragDrop", true, dragDropChanged)
option("allowDropFileTypes", null)
option("cursorBlinkRate", 530)
option("cursorScrollMargin", 0)
option("cursorHeight", 1, updateSelection, true)
option("singleCursorHeightPerLine", true, updateSelection, true)
option("workTime", 100)
option("workDelay", 100)
option("flattenSpans", true, resetModeState, true)
option("addModeClass", false, resetModeState, true)
option("pollInterval", 100)
option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; })
option("historyEventDelay", 1250)
option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true)
option("maxHighlightLength", 10000, resetModeState, true)
option("moveInputWithCursor", true, function (cm, val) {
if (!val) { cm.display.input.resetPosition() }
})
option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; })
option("autofocus", null)
}
function guttersChanged(cm) {
updateGutters(cm)
regChange(cm)
setTimeout(function () { return alignHorizontally(cm); }, 20)
}
function dragDropChanged(cm, value, old) {
var wasOn = old && old != Init
if (!value != !wasOn) {
var funcs = cm.display.dragFunctions
var toggle = value ? on : off
toggle(cm.display.scroller, "dragstart", funcs.start)
toggle(cm.display.scroller, "dragenter", funcs.enter)
toggle(cm.display.scroller, "dragover", funcs.over)
toggle(cm.display.scroller, "dragleave", funcs.leave)
toggle(cm.display.scroller, "drop", funcs.drop)
}
}
function wrappingChanged(cm) {
if (cm.options.lineWrapping) {
addClass(cm.display.wrapper, "CodeMirror-wrap")
cm.display.sizer.style.minWidth = ""
cm.display.sizerWidth = null
} else {
rmClass(cm.display.wrapper, "CodeMirror-wrap")
findMaxLine(cm)
}
estimateLineHeights(cm)
regChange(cm)
clearCaches(cm)
setTimeout(function () { return updateScrollbars(cm); }, 100)
}
// A CodeMirror instance represents an editor. This is the object
// that user code is usually dealing with.
function CodeMirror(place, options) {
var this$1 = this;
if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
this.options = options = options ? copyObj(options) : {}
// Determine effective options based on given values and defaults.
copyObj(defaults, options, false)
setGuttersForLineNumbers(options)
var doc = options.value
if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator) }
this.doc = doc
var input = new CodeMirror.inputStyles[options.inputStyle](this)
var display = this.display = new Display(place, doc, input)
display.wrapper.CodeMirror = this
updateGutters(this)
themeChanged(this)
if (options.lineWrapping)
{ this.display.wrapper.className += " CodeMirror-wrap" }
if (options.autofocus && !mobile) { display.input.focus() }
initScrollbars(this)
this.state = {
keyMaps: [], // stores maps added by addKeyMap
overlays: [], // highlighting overlays, as added by addOverlay
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
overwrite: false,
delayingBlurEvent: false,
focused: false,
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
selectingText: false,
draggingText: false,
highlight: new Delayed(), // stores highlight worker timeout
keySeq: null, // Unfinished key sequence
specialChars: null
}
// Override magic textarea content restore that IE sometimes does
// on our hidden textarea on reload
if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20) }
registerEventHandlers(this)
ensureGlobalHandlers()
startOperation(this)
this.curOp.forceUpdate = true
attachDoc(this, doc)
if ((options.autofocus && !mobile) || this.hasFocus())
{ setTimeout(bind(onFocus, this), 20) }
else
{ onBlur(this) }
for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
{ optionHandlers[opt](this$1, options[opt], Init) } }
maybeUpdateLineNumberWidth(this)
if (options.finishInit) { options.finishInit(this) }
for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1) }
endOperation(this)
// Suppress optimizelegibility in Webkit, since it breaks text
// measuring on line wrapping boundaries.
if (webkit && options.lineWrapping &&
getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
{ display.lineDiv.style.textRendering = "auto" }
}
// The default configuration options.
CodeMirror.defaults = defaults
// Functions to run when options are changed.
CodeMirror.optionHandlers = optionHandlers
// Attach the necessary event handlers when initializing the editor
function registerEventHandlers(cm) {
var d = cm.display
on(d.scroller, "mousedown", operation(cm, onMouseDown))
// Older IE's will not fire a second mousedown for a double click
if (ie && ie_version < 11)
{ on(d.scroller, "dblclick", operation(cm, function (e) {
if (signalDOMEvent(cm, e)) { return }
var pos = posFromMouse(cm, e)
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
e_preventDefault(e)
var word = cm.findWordAt(pos)
extendSelection(cm.doc, word.anchor, word.head)
})) }
else
{ on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }) }
// Some browsers fire contextmenu *after* opening the menu, at
// which point we can't mess with it anymore. Context menu is
// handled in onMouseDown for these browsers.
if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }) }
// Used to suppress mouse event handling when a touch happens
var touchFinished, prevTouch = {end: 0}
function finishTouch() {
if (d.activeTouch) {
touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000)
prevTouch = d.activeTouch
prevTouch.end = +new Date
}
}
function isMouseLikeTouchEvent(e) {
if (e.touches.length != 1) { return false }
var touch = e.touches[0]
return touch.radiusX <= 1 && touch.radiusY <= 1
}
function farAway(touch, other) {
if (other.left == null) { return true }
var dx = other.left - touch.left, dy = other.top - touch.top
return dx * dx + dy * dy > 20 * 20
}
on(d.scroller, "touchstart", function (e) {
if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
clearTimeout(touchFinished)
var now = +new Date
d.activeTouch = {start: now, moved: false,
prev: now - prevTouch.end <= 300 ? prevTouch : null}
if (e.touches.length == 1) {
d.activeTouch.left = e.touches[0].pageX
d.activeTouch.top = e.touches[0].pageY
}
}
})
on(d.scroller, "touchmove", function () {
if (d.activeTouch) { d.activeTouch.moved = true }
})
on(d.scroller, "touchend", function (e) {
var touch = d.activeTouch
if (touch && !eventInWidget(d, e) && touch.left != null &&
!touch.moved && new Date - touch.start < 300) {
var pos = cm.coordsChar(d.activeTouch, "page"), range
if (!touch.prev || farAway(touch, touch.prev)) // Single tap
{ range = new Range(pos, pos) }
else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
{ range = cm.findWordAt(pos) }
else // Triple tap
{ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
cm.setSelection(range.anchor, range.head)
cm.focus()
e_preventDefault(e)
}
finishTouch()
})
on(d.scroller, "touchcancel", finishTouch)
// Sync scrolling between fake scrollbars and real scrollable
// area, ensure viewport is updated when scrolling.
on(d.scroller, "scroll", function () {
if (d.scroller.clientHeight) {
setScrollTop(cm, d.scroller.scrollTop)
setScrollLeft(cm, d.scroller.scrollLeft, true)
signal(cm, "scroll", cm)
}
})
// Listen to wheel events in order to try and update the viewport on time.
on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); })
on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); })
// Prevent wrapper from ever scrolling
on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; })
d.dragFunctions = {
enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e) }},
over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},
start: function (e) { return onDragStart(cm, e); },
drop: operation(cm, onDrop),
leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}
}
var inp = d.input.getField()
on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); })
on(inp, "keydown", operation(cm, onKeyDown))
on(inp, "keypress", operation(cm, onKeyPress))
on(inp, "focus", function (e) { return onFocus(cm, e); })
on(inp, "blur", function (e) { return onBlur(cm, e); })
}
var initHooks = []
CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }
// Indent the given line. The how parameter can be "smart",
// "add"/null, "subtract", or "prev". When aggressive is false
// (typically set to true for forced single-line indents), empty
// lines are not indented, and places where the mode returns Pass
// are left alone.
function indentLine(cm, n, how, aggressive) {
var doc = cm.doc, state
if (how == null) { how = "add" }
if (how == "smart") {
// Fall back to "prev" when the mode doesn't have an indentation
// method.
if (!doc.mode.indent) { how = "prev" }
else { state = getStateBefore(cm, n) }
}
var tabSize = cm.options.tabSize
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)
if (line.stateAfter) { line.stateAfter = null }
var curSpaceString = line.text.match(/^\s*/)[0], indentation
if (!aggressive && !/\S/.test(line.text)) {
indentation = 0
how = "not"
} else if (how == "smart") {
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)
if (indentation == Pass || indentation > 150) {
if (!aggressive) { return }
how = "prev"
}
}
if (how == "prev") {
if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize) }
else { indentation = 0 }
} else if (how == "add") {
indentation = curSpace + cm.options.indentUnit
} else if (how == "subtract") {
indentation = curSpace - cm.options.indentUnit
} else if (typeof how == "number") {
indentation = curSpace + how
}
indentation = Math.max(0, indentation)
var indentString = "", pos = 0
if (cm.options.indentWithTabs)
{ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"} }
if (pos < indentation) { indentString += spaceStr(indentation - pos) }
if (indentString != curSpaceString) {
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input")
line.stateAfter = null
return true
} else {
// Ensure that, if the cursor was in the whitespace at the start
// of the line, it is moved to the end of that space.
for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
var range = doc.sel.ranges[i$1]
if (range.head.line == n && range.head.ch < curSpaceString.length) {
var pos$1 = Pos(n, curSpaceString.length)
replaceOneSelection(doc, i$1, new Range(pos$1, pos$1))
break
}
}
}
}
// This will be set to a {lineWise: bool, text: [string]} object, so
// that, when pasting, we know what kind of selections the copied
// text was made out of.
var lastCopied = null
function setLastCopied(newLastCopied) {
lastCopied = newLastCopied
}
function applyTextInput(cm, inserted, deleted, sel, origin) {
var doc = cm.doc
cm.display.shift = false
if (!sel) { sel = doc.sel }
var paste = cm.state.pasteIncoming || origin == "paste"
var textLines = splitLinesAuto(inserted), multiPaste = null
// When pasing N lines into N selections, insert one line per selection
if (paste && sel.ranges.length > 1) {
if (lastCopied && lastCopied.text.join("\n") == inserted) {
if (sel.ranges.length % lastCopied.text.length == 0) {
multiPaste = []
for (var i = 0; i < lastCopied.text.length; i++)
{ multiPaste.push(doc.splitLines(lastCopied.text[i])) }
}
} else if (textLines.length == sel.ranges.length) {
multiPaste = map(textLines, function (l) { return [l]; })
}
}
var updateInput
// Normal behavior is to insert the new text into every selection
for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
var range = sel.ranges[i$1]
var from = range.from(), to = range.to()
if (range.empty()) {
if (deleted && deleted > 0) // Handle deletion
{ from = Pos(from.line, from.ch - deleted) }
else if (cm.state.overwrite && !paste) // Handle overwrite
{ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)) }
else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
{ from = to = Pos(from.line, 0) }
}
updateInput = cm.curOp.updateInput
var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}
makeChange(cm.doc, changeEvent)
signalLater(cm, "inputRead", cm, changeEvent)
}
if (inserted && !paste)
{ triggerElectric(cm, inserted) }
ensureCursorVisible(cm)
cm.curOp.updateInput = updateInput
cm.curOp.typing = true
cm.state.pasteIncoming = cm.state.cutIncoming = false
}
function handlePaste(e, cm) {
var pasted = e.clipboardData && e.clipboardData.getData("Text")
if (pasted) {
e.preventDefault()
if (!cm.isReadOnly() && !cm.options.disableInput)
{ runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }) }
return true
}
}
function triggerElectric(cm, inserted) {
// When an 'electric' character is inserted, immediately trigger a reindent
if (!cm.options.electricChars || !cm.options.smartIndent) { return }
var sel = cm.doc.sel
for (var i = sel.ranges.length - 1; i >= 0; i--) {
var range = sel.ranges[i]
if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
var mode = cm.getModeAt(range.head)
var indented = false
if (mode.electricChars) {
for (var j = 0; j < mode.electricChars.length; j++)
{ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
indented = indentLine(cm, range.head.line, "smart")
break
} }
} else if (mode.electricInput) {
if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
{ indented = indentLine(cm, range.head.line, "smart") }
}
if (indented) { signalLater(cm, "electricInput", cm, range.head.line) }
}
}
function copyableRanges(cm) {
var text = [], ranges = []
for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
var line = cm.doc.sel.ranges[i].head.line
var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
ranges.push(lineRange)
text.push(cm.getRange(lineRange.anchor, lineRange.head))
}
return {text: text, ranges: ranges}
}
function disableBrowserMagic(field, spellcheck) {
field.setAttribute("autocorrect", "off")
field.setAttribute("autocapitalize", "off")
field.setAttribute("spellcheck", !!spellcheck)
}
function hiddenTextarea() {
var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
// The textarea is kept positioned near the cursor to prevent the
// fact that it'll be scrolled into view on input from scrolling
// our fake cursor out of view. On webkit, when wrap=off, paste is
// very slow. So make the area wide instead.
if (webkit) { te.style.width = "1000px" }
else { te.setAttribute("wrap", "off") }
// If border: 0; -- iOS fails to open keyboard (issue #1287)
if (ios) { te.style.border = "1px solid black" }
disableBrowserMagic(te)
return div
}
// The publicly visible API. Note that methodOp(f) means
// 'wrap f in an operation, performed on its `this` parameter'.
// This is not the complete set of editor methods. Most of the
// methods defined on the Doc type are also injected into
// CodeMirror.prototype, for backwards compatibility and
// convenience.
function addEditorMethods(CodeMirror) {
var optionHandlers = CodeMirror.optionHandlers
var helpers = CodeMirror.helpers = {}
CodeMirror.prototype = {
constructor: CodeMirror,
focus: function(){window.focus(); this.display.input.focus()},
setOption: function(option, value) {
var options = this.options, old = options[option]
if (options[option] == value && option != "mode") { return }
options[option] = value
if (optionHandlers.hasOwnProperty(option))
{ operation(this, optionHandlers[option])(this, value, old) }
},
getOption: function(option) {return this.options[option]},
getDoc: function() {return this.doc},
addKeyMap: function(map, bottom) {
this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map))
},
removeKeyMap: function(map) {
var maps = this.state.keyMaps
for (var i = 0; i < maps.length; ++i)
{ if (maps[i] == map || maps[i].name == map) {
maps.splice(i, 1)
return true
} }
},
addOverlay: methodOp(function(spec, options) {
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)
if (mode.startState) { throw new Error("Overlays may not be stateful.") }
insertSorted(this.state.overlays,
{mode: mode, modeSpec: spec, opaque: options && options.opaque,
priority: (options && options.priority) || 0},
function (overlay) { return overlay.priority; })
this.state.modeGen++
regChange(this)
}),
removeOverlay: methodOp(function(spec) {
var this$1 = this;
var overlays = this.state.overlays
for (var i = 0; i < overlays.length; ++i) {
var cur = overlays[i].modeSpec
if (cur == spec || typeof spec == "string" && cur.name == spec) {
overlays.splice(i, 1)
this$1.state.modeGen++
regChange(this$1)
return
}
}
}),
indentLine: methodOp(function(n, dir, aggressive) {
if (typeof dir != "string" && typeof dir != "number") {
if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev" }
else { dir = dir ? "add" : "subtract" }
}
if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive) }
}),
indentSelection: methodOp(function(how) {
var this$1 = this;
var ranges = this.doc.sel.ranges, end = -1
for (var i = 0; i < ranges.length; i++) {
var range = ranges[i]
if (!range.empty()) {
var from = range.from(), to = range.to()
var start = Math.max(end, from.line)
end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1
for (var j = start; j < end; ++j)
{ indentLine(this$1, j, how) }
var newRanges = this$1.doc.sel.ranges
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
{ replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll) }
} else if (range.head.line > end) {
indentLine(this$1, range.head.line, how, true)
end = range.head.line
if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1) }
}
}
}),
// Fetch the parser token for a given character. Useful for hacks
// that want to inspect the mode state (say, for completion).
getTokenAt: function(pos, precise) {
return takeToken(this, pos, precise)
},
getLineTokens: function(line, precise) {
return takeToken(this, Pos(line), precise, true)
},
getTokenTypeAt: function(pos) {
pos = clipPos(this.doc, pos)
var styles = getLineStyles(this, getLine(this.doc, pos.line))
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch
var type
if (ch == 0) { type = styles[2] }
else { for (;;) {
var mid = (before + after) >> 1
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid }
else if (styles[mid * 2 + 1] < ch) { before = mid + 1 }
else { type = styles[mid * 2 + 2]; break }
} }
var cut = type ? type.indexOf("overlay ") : -1
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
},
getModeAt: function(pos) {
var mode = this.doc.mode
if (!mode.innerMode) { return mode }
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
},
getHelper: function(pos, type) {
return this.getHelpers(pos, type)[0]
},
getHelpers: function(pos, type) {
var this$1 = this;
var found = []
if (!helpers.hasOwnProperty(type)) { return found }
var help = helpers[type], mode = this.getModeAt(pos)
if (typeof mode[type] == "string") {
if (help[mode[type]]) { found.push(help[mode[type]]) }
} else if (mode[type]) {
for (var i = 0; i < mode[type].length; i++) {
var val = help[mode[type][i]]
if (val) { found.push(val) }
}
} else if (mode.helperType && help[mode.helperType]) {
found.push(help[mode.helperType])
} else if (help[mode.name]) {
found.push(help[mode.name])
}
for (var i$1 = 0; i$1 < help._global.length; i$1++) {
var cur = help._global[i$1]
if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
{ found.push(cur.val) }
}
return found
},
getStateAfter: function(line, precise) {
var doc = this.doc
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)
return getStateBefore(this, line + 1, precise)
},
cursorCoords: function(start, mode) {
var pos, range = this.doc.sel.primary()
if (start == null) { pos = range.head }
else if (typeof start == "object") { pos = clipPos(this.doc, start) }
else { pos = start ? range.from() : range.to() }
return cursorCoords(this, pos, mode || "page")
},
charCoords: function(pos, mode) {
return charCoords(this, clipPos(this.doc, pos), mode || "page")
},
coordsChar: function(coords, mode) {
coords = fromCoordSystem(this, coords, mode || "page")
return coordsChar(this, coords.left, coords.top)
},
lineAtHeight: function(height, mode) {
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top
return lineAtHeight(this.doc, height + this.display.viewOffset)
},
heightAtLine: function(line, mode) {
var end = false, lineObj
if (typeof line == "number") {
var last = this.doc.first + this.doc.size - 1
if (line < this.doc.first) { line = this.doc.first }
else if (line > last) { line = last; end = true }
lineObj = getLine(this.doc, line)
} else {
lineObj = line
}
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
(end ? this.doc.height - heightAtLine(lineObj) : 0)
},
defaultTextHeight: function() { return textHeight(this.display) },
defaultCharWidth: function() { return charWidth(this.display) },
setGutterMarker: methodOp(function(line, gutterID, value) {
return changeLine(this.doc, line, "gutter", function (line) {
var markers = line.gutterMarkers || (line.gutterMarkers = {})
markers[gutterID] = value
if (!value && isEmpty(markers)) { line.gutterMarkers = null }
return true
})
}),
clearGutter: methodOp(function(gutterID) {
var this$1 = this;
var doc = this.doc, i = doc.first
doc.iter(function (line) {
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
line.gutterMarkers[gutterID] = null
regLineChange(this$1, i, "gutter")
if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null }
}
++i
})
}),
lineInfo: function(line) {
var n
if (typeof line == "number") {
if (!isLine(this.doc, line)) { return null }
n = line
line = getLine(this.doc, line)
if (!line) { return null }
} else {
n = lineNo(line)
if (n == null) { return null }
}
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
widgets: line.widgets}
},
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
addWidget: function(pos, node, scroll, vert, horiz) {
var display = this.display
pos = cursorCoords(this, clipPos(this.doc, pos))
var top = pos.bottom, left = pos.left
node.style.position = "absolute"
node.setAttribute("cm-ignore-events", "true")
this.display.input.setUneditable(node)
display.sizer.appendChild(node)
if (vert == "over") {
top = pos.top
} else if (vert == "above" || vert == "near") {
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)
// Default to positioning above (if specified and possible); otherwise default to positioning below
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
{ top = pos.top - node.offsetHeight }
else if (pos.bottom + node.offsetHeight <= vspace)
{ top = pos.bottom }
if (left + node.offsetWidth > hspace)
{ left = hspace - node.offsetWidth }
}
node.style.top = top + "px"
node.style.left = node.style.right = ""
if (horiz == "right") {
left = display.sizer.clientWidth - node.offsetWidth
node.style.right = "0px"
} else {
if (horiz == "left") { left = 0 }
else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2 }
node.style.left = left + "px"
}
if (scroll)
{ scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight) }
},
triggerOnKeyDown: methodOp(onKeyDown),
triggerOnKeyPress: methodOp(onKeyPress),
triggerOnKeyUp: onKeyUp,
execCommand: function(cmd) {
if (commands.hasOwnProperty(cmd))
{ return commands[cmd].call(null, this) }
},
triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),
findPosH: function(from, amount, unit, visually) {
var this$1 = this;
var dir = 1
if (amount < 0) { dir = -1; amount = -amount }
var cur = clipPos(this.doc, from)
for (var i = 0; i < amount; ++i) {
cur = findPosH(this$1.doc, cur, dir, unit, visually)
if (cur.hitSide) { break }
}
return cur
},
moveH: methodOp(function(dir, unit) {
var this$1 = this;
this.extendSelectionsBy(function (range) {
if (this$1.display.shift || this$1.doc.extend || range.empty())
{ return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
else
{ return dir < 0 ? range.from() : range.to() }
}, sel_move)
}),
deleteH: methodOp(function(dir, unit) {
var sel = this.doc.sel, doc = this.doc
if (sel.somethingSelected())
{ doc.replaceSelection("", null, "+delete") }
else
{ deleteNearSelection(this, function (range) {
var other = findPosH(doc, range.head, dir, unit, false)
return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
}) }
}),
findPosV: function(from, amount, unit, goalColumn) {
var this$1 = this;
var dir = 1, x = goalColumn
if (amount < 0) { dir = -1; amount = -amount }
var cur = clipPos(this.doc, from)
for (var i = 0; i < amount; ++i) {
var coords = cursorCoords(this$1, cur, "div")
if (x == null) { x = coords.left }
else { coords.left = x }
cur = findPosV(this$1, coords, dir, unit)
if (cur.hitSide) { break }
}
return cur
},
moveV: methodOp(function(dir, unit) {
var this$1 = this;
var doc = this.doc, goals = []
var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()
doc.extendSelectionsBy(function (range) {
if (collapse)
{ return dir < 0 ? range.from() : range.to() }
var headPos = cursorCoords(this$1, range.head, "div")
if (range.goalColumn != null) { headPos.left = range.goalColumn }
goals.push(headPos.left)
var pos = findPosV(this$1, headPos, dir, unit)
if (unit == "page" && range == doc.sel.primary())
{ addToScrollPos(this$1, null, charCoords(this$1, pos, "div").top - headPos.top) }
return pos
}, sel_move)
if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
{ doc.sel.ranges[i].goalColumn = goals[i] } }
}),
// Find the word at the given position (as returned by coordsChar).
findWordAt: function(pos) {
var doc = this.doc, line = getLine(doc, pos.line).text
var start = pos.ch, end = pos.ch
if (line) {
var helper = this.getHelper(pos, "wordChars")
if ((pos.xRel < 0 || end == line.length) && start) { --start; } else { ++end }
var startChar = line.charAt(start)
var check = isWordChar(startChar, helper)
? function (ch) { return isWordChar(ch, helper); }
: /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
: function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }
while (start > 0 && check(line.charAt(start - 1))) { --start }
while (end < line.length && check(line.charAt(end))) { ++end }
}
return new Range(Pos(pos.line, start), Pos(pos.line, end))
},
toggleOverwrite: function(value) {
if (value != null && value == this.state.overwrite) { return }
if (this.state.overwrite = !this.state.overwrite)
{ addClass(this.display.cursorDiv, "CodeMirror-overwrite") }
else
{ rmClass(this.display.cursorDiv, "CodeMirror-overwrite") }
signal(this, "overwriteToggle", this, this.state.overwrite)
},
hasFocus: function() { return this.display.input.getField() == activeElt() },
isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
scrollTo: methodOp(function(x, y) {
if (x != null || y != null) { resolveScrollToPos(this) }
if (x != null) { this.curOp.scrollLeft = x }
if (y != null) { this.curOp.scrollTop = y }
}),
getScrollInfo: function() {
var scroller = this.display.scroller
return {left: scroller.scrollLeft, top: scroller.scrollTop,
height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
},
scrollIntoView: methodOp(function(range, margin) {
if (range == null) {
range = {from: this.doc.sel.primary().head, to: null}
if (margin == null) { margin = this.options.cursorScrollMargin }
} else if (typeof range == "number") {
range = {from: Pos(range, 0), to: null}
} else if (range.from == null) {
range = {from: range, to: null}
}
if (!range.to) { range.to = range.from }
range.margin = margin || 0
if (range.from.line != null) {
resolveScrollToPos(this)
this.curOp.scrollToPos = range
} else {
var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
Math.min(range.from.top, range.to.top) - range.margin,
Math.max(range.from.right, range.to.right),
Math.max(range.from.bottom, range.to.bottom) + range.margin)
this.scrollTo(sPos.scrollLeft, sPos.scrollTop)
}
}),
setSize: methodOp(function(width, height) {
var this$1 = this;
var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }
if (width != null) { this.display.wrapper.style.width = interpret(width) }
if (height != null) { this.display.wrapper.style.height = interpret(height) }
if (this.options.lineWrapping) { clearLineMeasurementCache(this) }
var lineNo = this.display.viewFrom
this.doc.iter(lineNo, this.display.viewTo, function (line) {
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
{ if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
++lineNo
})
this.curOp.forceUpdate = true
signal(this, "refresh", this)
}),
operation: function(f){return runInOp(this, f)},
refresh: methodOp(function() {
var oldHeight = this.display.cachedTextHeight
regChange(this)
this.curOp.forceUpdate = true
clearCaches(this)
this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop)
updateGutterSpace(this)
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
{ estimateLineHeights(this) }
signal(this, "refresh", this)
}),
swapDoc: methodOp(function(doc) {
var old = this.doc
old.cm = null
attachDoc(this, doc)
clearCaches(this)
this.display.input.reset()
this.scrollTo(doc.scrollLeft, doc.scrollTop)
this.curOp.forceScroll = true
signalLater(this, "swapDoc", this, old)
return old
}),
getInputField: function(){return this.display.input.getField()},
getWrapperElement: function(){return this.display.wrapper},
getScrollerElement: function(){return this.display.scroller},
getGutterElement: function(){return this.display.gutters}
}
eventMixin(CodeMirror)
CodeMirror.registerHelper = function(type, name, value) {
if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []} }
helpers[type][name] = value
}
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
CodeMirror.registerHelper(type, name, value)
helpers[type]._global.push({pred: predicate, val: value})
}
}
// Used for horizontal relative motion. Dir is -1 or 1 (left or
// right), unit can be "char", "column" (like char, but doesn't
// cross line boundaries), "word" (across next word), or "group" (to
// the start of next group of word or non-word-non-whitespace
// chars). The visually param controls whether, in right-to-left
// text, direction 1 means to move towards the next index in the
// string, or towards the character to the right of the current
// position. The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosH(doc, pos, dir, unit, visually) {
var line = pos.line, ch = pos.ch, origDir = dir
var lineObj = getLine(doc, line)
function findNextLine() {
var l = line + dir
if (l < doc.first || l >= doc.first + doc.size) { return false }
line = l
return lineObj = getLine(doc, l)
}
function moveOnce(boundToLine) {
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true)
if (next == null) {
if (!boundToLine && findNextLine()) {
if (visually) { ch = (dir < 0 ? lineRight : lineLeft)(lineObj) }
else { ch = dir < 0 ? lineObj.text.length : 0 }
} else { return false }
} else { ch = next }
return true
}
if (unit == "char") {
moveOnce()
} else if (unit == "column") {
moveOnce(true)
} else if (unit == "word" || unit == "group") {
var sawType = null, group = unit == "group"
var helper = doc.cm && doc.cm.getHelper(pos, "wordChars")
for (var first = true;; first = false) {
if (dir < 0 && !moveOnce(!first)) { break }
var cur = lineObj.text.charAt(ch) || "\n"
var type = isWordChar(cur, helper) ? "w"
: group && cur == "\n" ? "n"
: !group || /\s/.test(cur) ? null
: "p"
if (group && !first && !type) { type = "s" }
if (sawType && sawType != type) {
if (dir < 0) {dir = 1; moveOnce()}
break
}
if (type) { sawType = type }
if (dir > 0 && !moveOnce(!first)) { break }
}
}
var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true)
if (!cmp(pos, result)) { result.hitSide = true }
return result
}
// For relative vertical movement. Dir may be -1 or 1. Unit can be
// "page" or "line". The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosV(cm, pos, dir, unit) {
var doc = cm.doc, x = pos.left, y
if (unit == "page") {
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)
y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
} else if (unit == "line") {
y = dir > 0 ? pos.bottom + 3 : pos.top - 3
}
var target
for (;;) {
target = coordsChar(cm, x, y)
if (!target.outside) { break }
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
y += dir * 5
}
return target
}
// CONTENTEDITABLE INPUT STYLE
function ContentEditableInput(cm) {
this.cm = cm
this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null
this.polling = new Delayed()
this.gracePeriod = false
}
ContentEditableInput.prototype = copyObj({
init: function(display) {
var input = this, cm = input.cm
var div = input.div = display.lineDiv
disableBrowserMagic(div, cm.options.spellcheck)
on(div, "paste", function (e) {
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
// IE doesn't fire input events, so we schedule a read for the pasted content in this way
if (ie_version <= 11) { setTimeout(operation(cm, function () {
if (!input.pollContent()) { regChange(cm) }
}), 20) }
})
on(div, "compositionstart", function (e) {
var data = e.data
input.composing = {sel: cm.doc.sel, data: data, startData: data}
if (!data) { return }
var prim = cm.doc.sel.primary()
var line = cm.getLine(prim.head.line)
var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length))
if (found > -1 && found <= prim.head.ch)
{ input.composing.sel = simpleSelection(Pos(prim.head.line, found),
Pos(prim.head.line, found + data.length)) }
})
on(div, "compositionupdate", function (e) { return input.composing.data = e.data; })
on(div, "compositionend", function (e) {
var ours = input.composing
if (!ours) { return }
if (e.data != ours.startData && !/\u200b/.test(e.data))
{ ours.data = e.data }
// Need a small delay to prevent other code (input event,
// selection polling) from doing damage when fired right after
// compositionend.
setTimeout(function () {
if (!ours.handled)
{ input.applyComposition(ours) }
if (input.composing == ours)
{ input.composing = null }
}, 50)
})
on(div, "touchstart", function () { return input.forceCompositionEnd(); })
on(div, "input", function () {
if (input.composing) { return }
if (cm.isReadOnly() || !input.pollContent())
{ runInOp(input.cm, function () { return regChange(cm); }) }
})
function onCopyCut(e) {
if (signalDOMEvent(cm, e)) { return }
if (cm.somethingSelected()) {
setLastCopied({lineWise: false, text: cm.getSelections()})
if (e.type == "cut") { cm.replaceSelection("", null, "cut") }
} else if (!cm.options.lineWiseCopyCut) {
return
} else {
var ranges = copyableRanges(cm)
setLastCopied({lineWise: true, text: ranges.text})
if (e.type == "cut") {
cm.operation(function () {
cm.setSelections(ranges.ranges, 0, sel_dontScroll)
cm.replaceSelection("", null, "cut")
})
}
}
if (e.clipboardData) {
e.clipboardData.clearData()
var content = lastCopied.text.join("\n")
// iOS exposes the clipboard API, but seems to discard content inserted into it
e.clipboardData.setData("Text", content)
if (e.clipboardData.getData("Text") == content) {
e.preventDefault()
return
}
}
// Old-fashioned briefly-focus-a-textarea hack
var kludge = hiddenTextarea(), te = kludge.firstChild
cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)
te.value = lastCopied.text.join("\n")
var hadFocus = document.activeElement
selectInput(te)
setTimeout(function () {
cm.display.lineSpace.removeChild(kludge)
hadFocus.focus()
if (hadFocus == div) { input.showPrimarySelection() }
}, 50)
}
on(div, "copy", onCopyCut)
on(div, "cut", onCopyCut)
},
prepareSelection: function() {
var result = prepareSelection(this.cm, false)
result.focus = this.cm.state.focused
return result
},
showSelection: function(info, takeFocus) {
if (!info || !this.cm.display.view.length) { return }
if (info.focus || takeFocus) { this.showPrimarySelection() }
this.showMultipleSelections(info)
},
showPrimarySelection: function() {
var sel = window.getSelection(), prim = this.cm.doc.sel.primary()
var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset)
var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset)
if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
{ return }
var start = posToDOM(this.cm, prim.from())
var end = posToDOM(this.cm, prim.to())
if (!start && !end) { return }
var view = this.cm.display.view
var old = sel.rangeCount && sel.getRangeAt(0)
if (!start) {
start = {node: view[0].measure.map[2], offset: 0}
} else if (!end) { // FIXME dangerously hacky
var measure = view[view.length - 1].measure
var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map
end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}
}
var rng
try { rng = range(start.node, start.offset, end.offset, end.node) }
catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
if (rng) {
if (!gecko && this.cm.state.focused) {
sel.collapse(start.node, start.offset)
if (!rng.collapsed) {
sel.removeAllRanges()
sel.addRange(rng)
}
} else {
sel.removeAllRanges()
sel.addRange(rng)
}
if (old && sel.anchorNode == null) { sel.addRange(old) }
else if (gecko) { this.startGracePeriod() }
}
this.rememberSelection()
},
startGracePeriod: function() {
var this$1 = this;
clearTimeout(this.gracePeriod)
this.gracePeriod = setTimeout(function () {
this$1.gracePeriod = false
if (this$1.selectionChanged())
{ this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }) }
}, 20)
},
showMultipleSelections: function(info) {
removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)
removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)
},
rememberSelection: function() {
var sel = window.getSelection()
this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset
this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset
},
selectionInEditor: function() {
var sel = window.getSelection()
if (!sel.rangeCount) { return false }
var node = sel.getRangeAt(0).commonAncestorContainer
return contains(this.div, node)
},
focus: function() {
if (this.cm.options.readOnly != "nocursor") { this.div.focus() }
},
blur: function() { this.div.blur() },
getField: function() { return this.div },
supportsTouch: function() { return true },
receivedFocus: function() {
var input = this
if (this.selectionInEditor())
{ this.pollSelection() }
else
{ runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }) }
function poll() {
if (input.cm.state.focused) {
input.pollSelection()
input.polling.set(input.cm.options.pollInterval, poll)
}
}
this.polling.set(this.cm.options.pollInterval, poll)
},
selectionChanged: function() {
var sel = window.getSelection()
return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
},
pollSelection: function() {
if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
var sel = window.getSelection(), cm = this.cm
this.rememberSelection()
var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
var head = domToPos(cm, sel.focusNode, sel.focusOffset)
if (anchor && head) { runInOp(cm, function () {
setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)
if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true }
}) }
}
},
pollContent: function() {
var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()
var from = sel.from(), to = sel.to()
if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
var fromIndex, fromLine, fromNode
if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
fromLine = lineNo(display.view[0].line)
fromNode = display.view[0].node
} else {
fromLine = lineNo(display.view[fromIndex].line)
fromNode = display.view[fromIndex - 1].node.nextSibling
}
var toIndex = findViewIndex(cm, to.line)
var toLine, toNode
if (toIndex == display.view.length - 1) {
toLine = display.viewTo - 1
toNode = display.lineDiv.lastChild
} else {
toLine = lineNo(display.view[toIndex + 1].line) - 1
toNode = display.view[toIndex + 1].node.previousSibling
}
var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))
var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))
while (newText.length > 1 && oldText.length > 1) {
if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }
else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }
else { break }
}
var cutFront = 0, cutEnd = 0
var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)
while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
{ ++cutFront }
var newBot = lst(newText), oldBot = lst(oldText)
var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
oldBot.length - (oldText.length == 1 ? cutFront : 0))
while (cutEnd < maxCutEnd &&
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
{ ++cutEnd }
newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd)
newText[0] = newText[0].slice(cutFront)
var chFrom = Pos(fromLine, cutFront)
var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)
if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
replaceRange(cm.doc, newText, chFrom, chTo, "+input")
return true
}
},
ensurePolled: function() {
this.forceCompositionEnd()
},
reset: function() {
this.forceCompositionEnd()
},
forceCompositionEnd: function() {
if (!this.composing || this.composing.handled) { return }
this.applyComposition(this.composing)
this.composing.handled = true
this.div.blur()
this.div.focus()
},
applyComposition: function(composing) {
if (this.cm.isReadOnly())
{ operation(this.cm, regChange)(this.cm) }
else if (composing.data && composing.data != composing.startData)
{ operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel) }
},
setUneditable: function(node) {
node.contentEditable = "false"
},
onKeyPress: function(e) {
e.preventDefault()
if (!this.cm.isReadOnly())
{ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0) }
},
readOnlyChanged: function(val) {
this.div.contentEditable = String(val != "nocursor")
},
onContextMenu: nothing,
resetPosition: nothing,
needsContentAttribute: true
}, ContentEditableInput.prototype)
function posToDOM(cm, pos) {
var view = findViewForLine(cm, pos.line)
if (!view || view.hidden) { return null }
var line = getLine(cm.doc, pos.line)
var info = mapFromLineView(view, line, pos.line)
var order = getOrder(line), side = "left"
if (order) {
var partPos = getBidiPartAt(order, pos.ch)
side = partPos % 2 ? "right" : "left"
}
var result = nodeAndOffsetInLineMap(info.map, pos.ch, side)
result.offset = result.collapse == "right" ? result.end : result.start
return result
}
function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
function domTextBetween(cm, from, to, fromLine, toLine) {
var text = "", closing = false, lineSep = cm.doc.lineSeparator()
function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
function walk(node) {
if (node.nodeType == 1) {
var cmText = node.getAttribute("cm-text")
if (cmText != null) {
if (cmText == "") { cmText = node.textContent.replace(/\u200b/g, "") }
text += cmText
return
}
var markerID = node.getAttribute("cm-marker"), range
if (markerID) {
var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))
if (found.length && (range = found[0].find()))
{ text += getBetween(cm.doc, range.from, range.to).join(lineSep) }
return
}
if (node.getAttribute("contenteditable") == "false") { return }
for (var i = 0; i < node.childNodes.length; i++)
{ walk(node.childNodes[i]) }
if (/^(pre|div|p)$/i.test(node.nodeName))
{ closing = true }
} else if (node.nodeType == 3) {
var val = node.nodeValue
if (!val) { return }
if (closing) {
text += lineSep
closing = false
}
text += val
}
}
for (;;) {
walk(from)
if (from == to) { break }
from = from.nextSibling
}
return text
}
function domToPos(cm, node, offset) {
var lineNode
if (node == cm.display.lineDiv) {
lineNode = cm.display.lineDiv.childNodes[offset]
if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
node = null; offset = 0
} else {
for (lineNode = node;; lineNode = lineNode.parentNode) {
if (!lineNode || lineNode == cm.display.lineDiv) { return null }
if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
}
}
for (var i = 0; i < cm.display.view.length; i++) {
var lineView = cm.display.view[i]
if (lineView.node == lineNode)
{ return locateNodeInLineView(lineView, node, offset) }
}
}
function locateNodeInLineView(lineView, node, offset) {
var wrapper = lineView.text.firstChild, bad = false
if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
if (node == wrapper) {
bad = true
node = wrapper.childNodes[offset]
offset = 0
if (!node) {
var line = lineView.rest ? lst(lineView.rest) : lineView.line
return badPos(Pos(lineNo(line), line.text.length), bad)
}
}
var textNode = node.nodeType == 3 ? node : null, topNode = node
if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
textNode = node.firstChild
if (offset) { offset = textNode.nodeValue.length }
}
while (topNode.parentNode != wrapper) { topNode = topNode.parentNode }
var measure = lineView.measure, maps = measure.maps
function find(textNode, topNode, offset) {
for (var i = -1; i < (maps ? maps.length : 0); i++) {
var map = i < 0 ? measure.map : maps[i]
for (var j = 0; j < map.length; j += 3) {
var curNode = map[j + 2]
if (curNode == textNode || curNode == topNode) {
var line = lineNo(i < 0 ? lineView.line : lineView.rest[i])
var ch = map[j] + offset
if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)] }
return Pos(line, ch)
}
}
}
}
var found = find(textNode, topNode, offset)
if (found) { return badPos(found, bad) }
// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
found = find(after, after.firstChild, 0)
if (found)
{ return badPos(Pos(found.line, found.ch - dist), bad) }
else
{ dist += after.textContent.length }
}
for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
found = find(before, before.firstChild, -1)
if (found)
{ return badPos(Pos(found.line, found.ch + dist$1), bad) }
else
{ dist$1 += before.textContent.length }
}
}
// TEXTAREA INPUT STYLE
function TextareaInput(cm) {
this.cm = cm
// See input.poll and input.reset
this.prevInput = ""
// Flag that indicates whether we expect input to appear real soon
// now (after some event like 'keypress' or 'input') and are
// polling intensively.
this.pollingFast = false
// Self-resetting timeout for the poller
this.polling = new Delayed()
// Tracks when input.reset has punted to just putting a short
// string into the textarea instead of the full selection.
this.inaccurateSelection = false
// Used to work around IE issue with selection being forgotten when focus moves away from textarea
this.hasSelection = false
this.composing = null
}
TextareaInput.prototype = copyObj({
init: function(display) {
var this$1 = this;
var input = this, cm = this.cm
// Wraps and hides input textarea
var div = this.wrapper = hiddenTextarea()
// The semihidden textarea that is focused when the editor is
// focused, and receives input.
var te = this.textarea = div.firstChild
display.wrapper.insertBefore(div, display.wrapper.firstChild)
// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
if (ios) { te.style.width = "0px" }
on(te, "input", function () {
if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null }
input.poll()
})
on(te, "paste", function (e) {
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
cm.state.pasteIncoming = true
input.fastPoll()
})
function prepareCopyCut(e) {
if (signalDOMEvent(cm, e)) { return }
if (cm.somethingSelected()) {
setLastCopied({lineWise: false, text: cm.getSelections()})
if (input.inaccurateSelection) {
input.prevInput = ""
input.inaccurateSelection = false
te.value = lastCopied.text.join("\n")
selectInput(te)
}
} else if (!cm.options.lineWiseCopyCut) {
return
} else {
var ranges = copyableRanges(cm)
setLastCopied({lineWise: true, text: ranges.text})
if (e.type == "cut") {
cm.setSelections(ranges.ranges, null, sel_dontScroll)
} else {
input.prevInput = ""
te.value = ranges.text.join("\n")
selectInput(te)
}
}
if (e.type == "cut") { cm.state.cutIncoming = true }
}
on(te, "cut", prepareCopyCut)
on(te, "copy", prepareCopyCut)
on(display.scroller, "paste", function (e) {
if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
cm.state.pasteIncoming = true
input.focus()
})
// Prevent normal selection in the editor (we handle our own)
on(display.lineSpace, "selectstart", function (e) {
if (!eventInWidget(display, e)) { e_preventDefault(e) }
})
on(te, "compositionstart", function () {
var start = cm.getCursor("from")
if (input.composing) { input.composing.range.clear() }
input.composing = {
start: start,
range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
}
})
on(te, "compositionend", function () {
if (input.composing) {
input.poll()
input.composing.range.clear()
input.composing = null
}
})
},
prepareSelection: function() {
// Redraw the selection and/or cursor
var cm = this.cm, display = cm.display, doc = cm.doc
var result = prepareSelection(cm)
// Move the hidden textarea near the cursor to prevent scrolling artifacts
if (cm.options.moveInputWithCursor) {
var headPos = cursorCoords(cm, doc.sel.primary().head, "div")
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
headPos.top + lineOff.top - wrapOff.top))
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
headPos.left + lineOff.left - wrapOff.left))
}
return result
},
showSelection: function(drawn) {
var cm = this.cm, display = cm.display
removeChildrenAndAdd(display.cursorDiv, drawn.cursors)
removeChildrenAndAdd(display.selectionDiv, drawn.selection)
if (drawn.teTop != null) {
this.wrapper.style.top = drawn.teTop + "px"
this.wrapper.style.left = drawn.teLeft + "px"
}
},
// Reset the input to correspond to the selection (or to be empty,
// when not typing and nothing is selected)
reset: function(typing) {
if (this.contextMenuPending) { return }
var minimal, selected, cm = this.cm, doc = cm.doc
if (cm.somethingSelected()) {
this.prevInput = ""
var range = doc.sel.primary()
minimal = hasCopyEvent &&
(range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000)
var content = minimal ? "-" : selected || cm.getSelection()
this.textarea.value = content
if (cm.state.focused) { selectInput(this.textarea) }
if (ie && ie_version >= 9) { this.hasSelection = content }
} else if (!typing) {
this.prevInput = this.textarea.value = ""
if (ie && ie_version >= 9) { this.hasSelection = null }
}
this.inaccurateSelection = minimal
},
getField: function() { return this.textarea },
supportsTouch: function() { return false },
focus: function() {
if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
try { this.textarea.focus() }
catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
}
},
blur: function() { this.textarea.blur() },
resetPosition: function() {
this.wrapper.style.top = this.wrapper.style.left = 0
},
receivedFocus: function() { this.slowPoll() },
// Poll for input changes, using the normal rate of polling. This
// runs as long as the editor is focused.
slowPoll: function() {
var this$1 = this;
if (this.pollingFast) { return }
this.polling.set(this.cm.options.pollInterval, function () {
this$1.poll()
if (this$1.cm.state.focused) { this$1.slowPoll() }
})
},
// When an event has just come in that is likely to add or change
// something in the input textarea, we poll faster, to ensure that
// the change appears on the screen quickly.
fastPoll: function() {
var missed = false, input = this
input.pollingFast = true
function p() {
var changed = input.poll()
if (!changed && !missed) {missed = true; input.polling.set(60, p)}
else {input.pollingFast = false; input.slowPoll()}
}
input.polling.set(20, p)
},
// Read input from the textarea, and update the document to match.
// When something is selected, it is present in the textarea, and
// selected (unless it is huge, in which case a placeholder is
// used). When nothing is selected, the cursor sits after previously
// seen text (can be empty), which is stored in prevInput (we must
// not reset the textarea when typing, because that breaks IME).
poll: function() {
var this$1 = this;
var cm = this.cm, input = this.textarea, prevInput = this.prevInput
// Since this is called a *lot*, try to bail out as cheaply as
// possible when it is clear that nothing happened. hasSelection
// will be the case when there is a lot of text in the textarea,
// in which case reading its value would be expensive.
if (this.contextMenuPending || !cm.state.focused ||
(hasSelection(input) && !prevInput && !this.composing) ||
cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
{ return false }
var text = input.value
// If nothing changed, bail.
if (text == prevInput && !cm.somethingSelected()) { return false }
// Work around nonsensical selection resetting in IE9/10, and
// inexplicable appearance of private area unicode characters on
// some key combos in Mac (#2689).
if (ie && ie_version >= 9 && this.hasSelection === text ||
mac && /[\uf700-\uf7ff]/.test(text)) {
cm.display.input.reset()
return false
}
if (cm.doc.sel == cm.display.selForContextMenu) {
var first = text.charCodeAt(0)
if (first == 0x200b && !prevInput) { prevInput = "\u200b" }
if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
}
// Find the part of the input that is actually new
var same = 0, l = Math.min(prevInput.length, text.length)
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same }
runInOp(cm, function () {
applyTextInput(cm, text.slice(same), prevInput.length - same,
null, this$1.composing ? "*compose" : null)
// Don't leave long text in the textarea, since it makes further polling slow
if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = "" }
else { this$1.prevInput = text }
if (this$1.composing) {
this$1.composing.range.clear()
this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
{className: "CodeMirror-composing"})
}
})
return true
},
ensurePolled: function() {
if (this.pollingFast && this.poll()) { this.pollingFast = false }
},
onKeyPress: function() {
if (ie && ie_version >= 9) { this.hasSelection = null }
this.fastPoll()
},
onContextMenu: function(e) {
var input = this, cm = input.cm, display = cm.display, te = input.textarea
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop
if (!pos || presto) { return } // Opera is difficult.
// Reset the current text selection only if the click is done outside of the selection
// and 'resetSelectionOnContextMenu' option is true.
var reset = cm.options.resetSelectionOnContextMenu
if (reset && cm.doc.sel.contains(pos) == -1)
{ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll) }
var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText
input.wrapper.style.cssText = "position: absolute"
var wrapperBox = input.wrapper.getBoundingClientRect()
te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"
var oldScrollY
if (webkit) { oldScrollY = window.scrollY } // Work around Chrome issue (#2712)
display.input.focus()
if (webkit) { window.scrollTo(null, oldScrollY) }
display.input.reset()
// Adds "Select all" to context menu in FF
if (!cm.somethingSelected()) { te.value = input.prevInput = " " }
input.contextMenuPending = true
display.selForContextMenu = cm.doc.sel
clearTimeout(display.detectingSelectAll)
// Select-all will be greyed out if there's nothing to select, so
// this adds a zero-width space so that we can later check whether
// it got selected.
function prepareSelectAllHack() {
if (te.selectionStart != null) {
var selected = cm.somethingSelected()
var extval = "\u200b" + (selected ? te.value : "")
te.value = "\u21da" // Used to catch context-menu undo
te.value = extval
input.prevInput = selected ? "" : "\u200b"
te.selectionStart = 1; te.selectionEnd = extval.length
// Re-set this, in case some other handler touched the
// selection in the meantime.
display.selForContextMenu = cm.doc.sel
}
}
function rehide() {
input.contextMenuPending = false
input.wrapper.style.cssText = oldWrapperCSS
te.style.cssText = oldCSS
if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos) }
// Try to detect the user choosing select-all
if (te.selectionStart != null) {
if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack() }
var i = 0, poll = function () {
if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
te.selectionEnd > 0 && input.prevInput == "\u200b")
{ operation(cm, selectAll)(cm) }
else if (i++ < 10) { display.detectingSelectAll = setTimeout(poll, 500) }
else { display.input.reset() }
}
display.detectingSelectAll = setTimeout(poll, 200)
}
}
if (ie && ie_version >= 9) { prepareSelectAllHack() }
if (captureRightClick) {
e_stop(e)
var mouseup = function () {
off(window, "mouseup", mouseup)
setTimeout(rehide, 20)
}
on(window, "mouseup", mouseup)
} else {
setTimeout(rehide, 50)
}
},
readOnlyChanged: function(val) {
if (!val) { this.reset() }
},
setUneditable: nothing,
needsContentAttribute: false
}, TextareaInput.prototype)
function fromTextArea(textarea, options) {
options = options ? copyObj(options) : {}
options.value = textarea.value
if (!options.tabindex && textarea.tabIndex)
{ options.tabindex = textarea.tabIndex }
if (!options.placeholder && textarea.placeholder)
{ options.placeholder = textarea.placeholder }
// Set autofocus to true if this textarea is focused, or if it has
// autofocus and no other element is focused.
if (options.autofocus == null) {
var hasFocus = activeElt()
options.autofocus = hasFocus == textarea ||
textarea.getAttribute("autofocus") != null && hasFocus == document.body
}
function save() {textarea.value = cm.getValue()}
var realSubmit
if (textarea.form) {
on(textarea.form, "submit", save)
// Deplorable hack to make the submit method do the right thing.
if (!options.leaveSubmitMethodAlone) {
var form = textarea.form
realSubmit = form.submit
try {
var wrappedSubmit = form.submit = function () {
save()
form.submit = realSubmit
form.submit()
form.submit = wrappedSubmit
}
} catch(e) {}
}
}
options.finishInit = function (cm) {
cm.save = save
cm.getTextArea = function () { return textarea; }
cm.toTextArea = function () {
cm.toTextArea = isNaN // Prevent this from being ran twice
save()
textarea.parentNode.removeChild(cm.getWrapperElement())
textarea.style.display = ""
if (textarea.form) {
off(textarea.form, "submit", save)
if (typeof textarea.form.submit == "function")
{ textarea.form.submit = realSubmit }
}
}
}
textarea.style.display = "none"
var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
options)
return cm
}
function addLegacyProps(CodeMirror) {
CodeMirror.off = off
CodeMirror.on = on
CodeMirror.wheelEventPixels = wheelEventPixels
CodeMirror.Doc = Doc
CodeMirror.splitLines = splitLinesAuto
CodeMirror.countColumn = countColumn
CodeMirror.findColumn = findColumn
CodeMirror.isWordChar = isWordCharBasic
CodeMirror.Pass = Pass
CodeMirror.signal = signal
CodeMirror.Line = Line
CodeMirror.changeEnd = changeEnd
CodeMirror.scrollbarModel = scrollbarModel
CodeMirror.Pos = Pos
CodeMirror.cmpPos = cmp
CodeMirror.modes = modes
CodeMirror.mimeModes = mimeModes
CodeMirror.resolveMode = resolveMode
CodeMirror.getMode = getMode
CodeMirror.modeExtensions = modeExtensions
CodeMirror.extendMode = extendMode
CodeMirror.copyState = copyState
CodeMirror.startState = startState
CodeMirror.innerMode = innerMode
CodeMirror.commands = commands
CodeMirror.keyMap = keyMap
CodeMirror.keyName = keyName
CodeMirror.isModifierKey = isModifierKey
CodeMirror.lookupKey = lookupKey
CodeMirror.normalizeKeyMap = normalizeKeyMap
CodeMirror.StringStream = StringStream
CodeMirror.SharedTextMarker = SharedTextMarker
CodeMirror.TextMarker = TextMarker
CodeMirror.LineWidget = LineWidget
CodeMirror.e_preventDefault = e_preventDefault
CodeMirror.e_stopPropagation = e_stopPropagation
CodeMirror.e_stop = e_stop
CodeMirror.addClass = addClass
CodeMirror.contains = contains
CodeMirror.rmClass = rmClass
CodeMirror.keyNames = keyNames
}
// EDITOR CONSTRUCTOR
defineOptions(CodeMirror)
addEditorMethods(CodeMirror)
// Set up methods on CodeMirror's prototype to redirect to the editor's document.
var dontDelegate = "iter insert remove copy getEditor constructor".split(" ")
for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
{ CodeMirror.prototype[prop] = (function(method) {
return function() {return method.apply(this.doc, arguments)}
})(Doc.prototype[prop]) } }
eventMixin(Doc)
// INPUT HANDLING
CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}
// MODE DEFINITION AND QUERYING
// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
CodeMirror.defineMode = function(name/*, mode, …*/) {
if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name }
defineMode.apply(this, arguments)
}
CodeMirror.defineMIME = defineMIME
// Minimal default mode.
CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); })
CodeMirror.defineMIME("text/plain", "null")
// EXTENSIONS
CodeMirror.defineExtension = function (name, func) {
CodeMirror.prototype[name] = func
}
CodeMirror.defineDocExtension = function (name, func) {
Doc.prototype[name] = func
}
CodeMirror.fromTextArea = fromTextArea
addLegacyProps(CodeMirror)
CodeMirror.version = "5.20.2"
return CodeMirror;
})));
================================================
FILE: asset/show-hint.js
================================================
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
var HINT_ELEMENT_CLASS = "CodeMirror-hint";
var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";
// This is the old interface, kept around for now to stay
// backwards-compatible.
CodeMirror.showHint = function(cm, getHints, options) {
if (!getHints) return cm.showHint(options);
if (options && options.async) getHints.async = true;
var newOpts = {hint: getHints};
if (options) for (var prop in options) newOpts[prop] = options[prop];
return cm.showHint(newOpts);
};
CodeMirror.defineExtension("showHint", function(options) {
options = parseOptions(this, this.getCursor("start"), options);
var selections = this.listSelections()
if (selections.length > 1) return;
// By default, don't allow completion when something is selected.
// A hint function can have a `supportsSelection` property to
// indicate that it can handle selections.
if (this.somethingSelected()) {
if (!options.hint.supportsSelection) return;
// Don't try with cross-line selections
for (var i = 0; i < selections.length; i++)
if (selections[i].head.line != selections[i].anchor.line) return;
}
if (this.state.completionActive) this.state.completionActive.close();
var completion = this.state.completionActive = new Completion(this, options);
if (!completion.options.hint) return;
CodeMirror.signal(this, "startCompletion", this);
completion.update(true);
});
function Completion(cm, options) {
this.cm = cm;
this.options = options;
this.widget = null;
this.debounce = 0;
this.tick = 0;
this.startPos = this.cm.getCursor("start");
this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length;
var self = this;
cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); });
}
var requestAnimationFrame = window.requestAnimationFrame || function(fn) {
return setTimeout(fn, 1000/60);
};
var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout;
Completion.prototype = {
close: function() {
if (!this.active()) return;
this.cm.state.completionActive = null;
this.tick = null;
this.cm.off("cursorActivity", this.activityFunc);
if (this.widget && this.data) CodeMirror.signal(this.data, "close");
if (this.widget) this.widget.close();
CodeMirror.signal(this.cm, "endCompletion", this.cm);
},
active: function() {
return this.cm.state.completionActive == this;
},
pick: function(data, i) {
var completion = data.list[i];
if (completion.hint) completion.hint(this.cm, data, completion);
else this.cm.replaceRange(getText(completion), completion.from || data.from,
completion.to || data.to, "complete");
CodeMirror.signal(data, "pick", completion);
this.close();
},
cursorActivity: function() {
if (this.debounce) {
cancelAnimationFrame(this.debounce);
this.debounce = 0;
}
var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
(pos.ch && this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
this.close();
} else {
var self = this;
this.debounce = requestAnimationFrame(function() {self.update();});
if (this.widget) this.widget.disable();
}
},
update: function(first) {
if (this.tick == null) return
var self = this, myTick = ++this.tick
fetchHints(this.options.hint, this.cm, this.options, function(data) {
if (self.tick == myTick) self.finishUpdate(data, first)
})
},
finishUpdate: function(data, first) {
if (this.data) CodeMirror.signal(this.data, "update");
var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
if (this.widget) this.widget.close();
this.data = data;
if (data && data.list.length) {
if (picked && data.list.length == 1) {
this.pick(data, 0);
} else {
this.widget = new Widget(this, data);
CodeMirror.signal(data, "shown");
}
}
}
};
function parseOptions(cm, pos, options) {
var editor = cm.options.hintOptions;
var out = {};
for (var prop in defaultOptions) out[prop] = defaultOptions[prop];
if (editor) for (var prop in editor)
if (editor[prop] !== undefined) out[prop] = editor[prop];
if (options) for (var prop in options)
if (options[prop] !== undefined) out[prop] = options[prop];
if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos)
return out;
}
function getText(completion) {
if (typeof completion == "string") return completion;
else return completion.text;
}
function buildKeyMap(completion, handle) {
var baseMap = {
Up: function() {handle.moveFocus(-1);},
Down: function() {handle.moveFocus(1);},
PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);},
PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);},
Home: function() {handle.setFocus(0);},
End: function() {handle.setFocus(handle.length - 1);},
Enter: handle.pick,
Tab: handle.pick,
Esc: handle.close
};
var custom = completion.options.customKeys;
var ourMap = custom ? {} : baseMap;
function addBinding(key, val) {
var bound;
if (typeof val != "string")
bound = function(cm) { return val(cm, handle); };
// This mechanism is deprecated
else if (baseMap.hasOwnProperty(val))
bound = baseMap[val];
else
bound = val;
ourMap[key] = bound;
}
if (custom)
for (var key in custom) if (custom.hasOwnProperty(key))
addBinding(key, custom[key]);
var extra = completion.options.extraKeys;
if (extra)
for (var key in extra) if (extra.hasOwnProperty(key))
addBinding(key, extra[key]);
return ourMap;
}
function getHintElement(hintsElement, el) {
while (el && el != hintsElement) {
if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el;
el = el.parentNode;
}
}
function Widget(completion, data) {
this.completion = completion;
this.data = data;
this.picked = false;
var widget = this, cm = completion.cm;
var hints = this.hints = document.createElement("ul");
hints.className = "CodeMirror-hints";
this.selectedHint = data.selectedHint || 0;
var completions = data.list;
for (var i = 0; i < completions.length; ++i) {
var elt = hints.appendChild(document.createElement("li")), cur = completions[i];
var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
if (cur.className != null) className = cur.className + " " + className;
elt.className = className;
if (cur.render) cur.render(elt, data, cur);
else elt.appendChild(document.createTextNode(cur.displayText || getText(cur)));
elt.hintId = i;
}
var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
var left = pos.left, top = pos.bottom, below = true;
hints.style.left = left + "px";
hints.style.top = top + "px";
// If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
(completion.options.container || document.body).appendChild(hints);
var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
var scrolls = hints.scrollHeight > hints.clientHeight + 1
var startScroll = cm.getScrollInfo();
if (overlapY > 0) {
var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top);
if (curTop - height > 0) { // Fits above cursor
hints.style.top = (top = pos.top - height) + "px";
below = false;
} else if (height > winH) {
hints.style.height = (winH - 5) + "px";
hints.style.top = (top = pos.bottom - box.top) + "px";
var cursor = cm.getCursor();
if (data.from.ch != cursor.ch) {
pos = cm.cursorCoords(cursor);
hints.style.left = (left = pos.left) + "px";
box = hints.getBoundingClientRect();
}
}
}
var overlapX = box.right - winW;
if (overlapX > 0) {
if (box.right - box.left > winW) {
hints.style.width = (winW - 5) + "px";
overlapX -= (box.right - box.left) - winW;
}
hints.style.left = (left = pos.left - overlapX) + "px";
}
if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling)
node.style.paddingRight = cm.display.nativeBarWidth + "px"
cm.addKeyMap(this.keyMap = buildKeyMap(completion, {
moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); },
setFocus: function(n) { widget.changeActive(n); },
menuSize: function() { return widget.screenAmount(); },
length: completions.length,
close: function() { completion.close(); },
pick: function() { widget.pick(); },
data: data
}));
if (completion.options.closeOnUnfocus) {
var closingOnBlur;
cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); });
cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); });
}
cm.on("scroll", this.onScroll = function() {
var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
var newTop = top + startScroll.top - curScroll.top;
var point = newTop - (window.pageYOffset || (document.documentElement || document.body).scrollTop);
if (!below) point += hints.offsetHeight;
if (point <= editor.top || point >= editor.bottom) return completion.close();
hints.style.top = newTop + "px";
hints.style.left = (left + startScroll.left - curScroll.left) + "px";
});
CodeMirror.on(hints, "dblclick", function(e) {
var t = getHintElement(hints, e.target || e.srcElement);
if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();}
});
CodeMirror.on(hints, "click", function(e) {
var t = getHintElement(hints, e.target || e.srcElement);
if (t && t.hintId != null) {
widget.changeActive(t.hintId);
if (completion.options.completeOnSingleClick) widget.pick();
}
});
CodeMirror.on(hints, "mousedown", function() {
setTimeout(function(){cm.focus();}, 20);
});
CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]);
return true;
}
Widget.prototype = {
close: function() {
if (this.completion.widget != this) return;
this.completion.widget = null;
this.hints.parentNode.removeChild(this.hints);
this.completion.cm.removeKeyMap(this.keyMap);
var cm = this.completion.cm;
if (this.completion.options.closeOnUnfocus) {
cm.off("blur", this.onBlur);
cm.off("focus", this.onFocus);
}
cm.off("scroll", this.onScroll);
},
disable: function() {
this.completion.cm.removeKeyMap(this.keyMap);
var widget = this;
this.keyMap = {Enter: function() { widget.picked = true; }};
this.completion.cm.addKeyMap(this.keyMap);
},
pick: function() {
this.completion.pick(this.data, this.selectedHint);
},
changeActive: function(i, avoidWrap) {
if (i >= this.data.list.length)
i = avoidWrap ? this.data.list.length - 1 : 0;
else if (i < 0)
i = avoidWrap ? 0 : this.data.list.length - 1;
if (this.selectedHint == i) return;
var node = this.hints.childNodes[this.selectedHint];
node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
node = this.hints.childNodes[this.selectedHint = i];
node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
if (node.offsetTop < this.hints.scrollTop)
this.hints.scrollTop = node.offsetTop - 3;
else if (node.offsetTop + node.offsetHeight > this.hints.scrollTop + this.hints.clientHeight)
this.hints.scrollTop = node.offsetTop + node.offsetHeight - this.hints.clientHeight + 3;
CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
},
screenAmount: function() {
return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
}
};
function applicableHelpers(cm, helpers) {
if (!cm.somethingSelected()) return helpers
var result = []
for (var i = 0; i < helpers.length; i++)
if (helpers[i].supportsSelection) result.push(helpers[i])
return result
}
function fetchHints(hint, cm, options, callback) {
if (hint.async) {
hint(cm, callback, options)
} else {
var result = hint(cm, options)
if (result && result.then) result.then(callback)
else callback(result)
}
}
function resolveAutoHints(cm, pos) {
var helpers = cm.getHelpers(pos, "hint"), words
if (helpers.length) {
var resolved = function(cm, callback, options) {
var app = applicableHelpers(cm, helpers);
function run(i) {
if (i == app.length) return callback(null)
fetchHints(app[i], cm, options, function(result) {
if (result && result.list.length > 0) callback(result)
else run(i + 1)
})
}
run(0)
}
resolved.async = true
resolved.supportsSelection = true
return resolved
} else if (words = cm.getHelper(cm.getCursor(), "hintWords")) {
return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) }
} else if (CodeMirror.hint.anyword) {
return function(cm, options) { return CodeMirror.hint.anyword(cm, options) }
} else {
return function() {}
}
}
CodeMirror.registerHelper("hint", "auto", {
resolve: resolveAutoHints
});
CodeMirror.registerHelper("hint", "fromList", function(cm, options) {
var cur = cm.getCursor(), token = cm.getTokenAt(cur)
var term, from = CodeMirror.Pos(cur.line, token.start), to = cur
if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) {
term = token.string.substr(0, cur.ch - token.start)
} else {
term = ""
from = cur
}
var found = [];
for (var i = 0; i < options.words.length; i++) {
var word = options.words[i];
if (word.slice(0, term.length) == term)
found.push(word);
}
if (found.length) return {list: found, from: from, to: to};
});
CodeMirror.commands.autocomplete = CodeMirror.showHint;
var defaultOptions = {
hint: CodeMirror.hint.auto,
completeSingle: true,
alignWithWord: true,
closeCharacters: /[\s()\[\]{};:>,]/,
closeOnUnfocus: true,
completeOnSingleClick: true,
container: null,
customKeys: null,
extraKeys: null
};
CodeMirror.defineOption("hintOptions", null);
});
================================================
FILE: asset/sql-hint.js
================================================
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../../mode/sql/sql"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../../mode/sql/sql"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
var tables;
var defaultTable;
var keywords;
var identifierQuote;
var CONS = {
QUERY_DIV: ";",
ALIAS_KEYWORD: "AS"
};
var Pos = CodeMirror.Pos, cmpPos = CodeMirror.cmpPos;
function isArray(val) { return Object.prototype.toString.call(val) == "[object Array]" }
function getKeywords(editor) {
var mode = editor.doc.modeOption;
if (mode === "sql") mode = "text/x-sql";
return CodeMirror.resolveMode(mode).keywords;
}
function getIdentifierQuote(editor) {
var mode = editor.doc.modeOption;
if (mode === "sql") mode = "text/x-sql";
return CodeMirror.resolveMode(mode).identifierQuote || "`";
}
function getText(item) {
return typeof item == "string" ? item : item.text;
}
function wrapTable(name, value) {
if (isArray(value)) value = {columns: value}
if (!value.text) value.text = name
return value
}
function parseTables(input) {
var result = {}
if (isArray(input)) {
for (var i = input.length - 1; i >= 0; i--) {
var item = input[i]
result[getText(item).toUpperCase()] = wrapTable(getText(item), item)
}
} else if (input) {
for (var name in input)
result[name.toUpperCase()] = wrapTable(name, input[name])
}
return result
}
function getTable(name) {
return tables[name.toUpperCase()]
}
function shallowClone(object) {
var result = {};
for (var key in object) if (object.hasOwnProperty(key))
result[key] = object[key];
return result;
}
function match(string, word) {
var len = string.length;
var sub = getText(word).substr(0, len);
return string.toUpperCase() === sub.toUpperCase();
}
function addMatches(result, search, wordlist, formatter) {
if (isArray(wordlist)) {
for (var i = 0; i < wordlist.length; i++)
if (match(search, wordlist[i])) result.push(formatter(wordlist[i]))
} else {
for (var word in wordlist) if (wordlist.hasOwnProperty(word)) {
var val = wordlist[word]
if (!val || val === true)
val = word
else
val = val.displayText ? {text: val.text, displayText: val.displayText} : val.text
if (match(search, val)) result.push(formatter(val))
}
}
}
function cleanName(name) {
// Get rid name from identifierQuote and preceding dot(.)
if (name.charAt(0) == ".") {
name = name.substr(1);
}
// replace doublicated identifierQuotes with single identifierQuotes
// and remove single identifierQuotes
var nameParts = name.split(identifierQuote+identifierQuote);
for (var i = 0; i < nameParts.length; i++)
nameParts[i] = nameParts[i].replace(new RegExp(identifierQuote,"g"), "");
return nameParts.join(identifierQuote);
}
function insertIdentifierQuotes(name) {
var nameParts = getText(name).split(".");
for (var i = 0; i < nameParts.length; i++)
nameParts[i] = identifierQuote +
// doublicate identifierQuotes
nameParts[i].replace(new RegExp(identifierQuote,"g"), identifierQuote+identifierQuote) +
identifierQuote;
var escaped = nameParts.join(".");
if (typeof name == "string") return escaped;
name = shallowClone(name);
name.text = escaped;
return name;
}
function nameCompletion(cur, token, result, editor) {
// Try to complete table, column names and return start position of completion
var useIdentifierQuotes = false;
var nameParts = [];
var start = token.start;
var cont = true;
while (cont) {
cont = (token.string.charAt(0) == ".");
useIdentifierQuotes = useIdentifierQuotes || (token.string.charAt(0) == identifierQuote);
start = token.start;
nameParts.unshift(cleanName(token.string));
token = editor.getTokenAt(Pos(cur.line, token.start));
if (token.string == ".") {
cont = true;
token = editor.getTokenAt(Pos(cur.line, token.start));
}
}
// Try to complete table names
var string = nameParts.join(".");
addMatches(result, string, tables, function(w) {
return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
});
// Try to complete columns from defaultTable
addMatches(result, string, defaultTable, function(w) {
return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
});
// Try to complete columns
string = nameParts.pop();
var table = nameParts.join(".");
var alias = false;
var aliasTable = table;
// Check if table is available. If not, find table by Alias
if (!getTable(table)) {
var oldTable = table;
table = findTableByAlias(table, editor);
if (table !== oldTable) alias = true;
}
var columns = getTable(table);
if (columns && columns.columns)
columns = columns.columns;
if (columns) {
addMatches(result, string, columns, function(w) {
var tableInsert = table;
if (alias == true) tableInsert = aliasTable;
if (typeof w == "string") {
w = tableInsert + "." + w;
} else {
w = shallowClone(w);
w.text = tableInsert + "." + w.text;
}
return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
});
}
return start;
}
function eachWord(lineText, f) {
var words = lineText.split(/\s+/)
for (var i = 0; i < words.length; i++)
if (words[i]) f(words[i].replace(/[,;]/g, ''))
}
function findTableByAlias(alias, editor) {
var doc = editor.doc;
var fullQuery = doc.getValue();
var aliasUpperCase = alias.toUpperCase();
var previousWord = "";
var table = "";
var separator = [];
var validRange = {
start: Pos(0, 0),
end: Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).length)
};
//add separator
var indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV);
while(indexOfSeparator != -1) {
separator.push(doc.posFromIndex(indexOfSeparator));
indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV, indexOfSeparator+1);
}
separator.unshift(Pos(0, 0));
separator.push(Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).text.length));
//find valid range
var prevItem = null;
var current = editor.getCursor()
for (var i = 0; i < separator.length; i++) {
if ((prevItem == null || cmpPos(current, prevItem) > 0) && cmpPos(current, separator[i]) <= 0) {
validRange = {start: prevItem, end: separator[i]};
break;
}
prevItem = separator[i];
}
if (validRange.start) {
var query = doc.getRange(validRange.start, validRange.end, false);
for (var i = 0; i < query.length; i++) {
var lineText = query[i];
eachWord(lineText, function(word) {
var wordUpperCase = word.toUpperCase();
if (wordUpperCase === aliasUpperCase && getTable(previousWord))
table = previousWord;
if (wordUpperCase !== CONS.ALIAS_KEYWORD)
previousWord = word;
});
if (table) break;
}
}
return table;
}
CodeMirror.registerHelper("hint", "sql", function(editor, options) {
tables = parseTables(options && options.tables)
var defaultTableName = options && options.defaultTable;
var disableKeywords = options && options.disableKeywords;
defaultTable = defaultTableName && getTable(defaultTableName);
keywords = getKeywords(editor);
identifierQuote = getIdentifierQuote(editor);
if (defaultTableName && !defaultTable)
defaultTable = findTableByAlias(defaultTableName, editor);
defaultTable = defaultTable || [];
if (defaultTable.columns)
defaultTable = defaultTable.columns;
var cur = editor.getCursor();
var result = [];
var token = editor.getTokenAt(cur), start, end, search;
if (token.end > cur.ch) {
token.end = cur.ch;
token.string = token.string.slice(0, cur.ch - token.start);
}
if (token.string.match(/^[.`"\w@]\w*$/)) {
search = token.string;
start = token.start;
end = token.end;
} else {
start = end = cur.ch;
search = "";
}
if (search.charAt(0) == "." || search.charAt(0) == identifierQuote) {
start = nameCompletion(cur, token, result, editor);
} else {
addMatches(result, search, defaultTable, function(w) {return {text:w, className: "CodeMirror-hint-table CodeMirror-hint-default-table"};});
addMatches(
result,
search,
tables,
function(w) {
if (typeof w === 'object') {
w.className = "CodeMirror-hint-table";
} else {
w = {text: w, className: "CodeMirror-hint-table"};
}
return w;
}
);
if (!disableKeywords)
addMatches(result, search, keywords, function(w) {return {text: w.toUpperCase(), className: "CodeMirror-hint-keyword"};});
}
return {list: result, from: Pos(cur.line, start), to: Pos(cur.line, end)};
});
});
================================================
FILE: asset/sql-qone.js
================================================
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode("sql", function(config, parserConfig) {
"use strict";
var client = parserConfig.client || {},
atoms = parserConfig.atoms || {"false": true, "true": true, "null": true},
builtin = parserConfig.builtin || {},
keywords = parserConfig.keywords || {},
operatorChars = parserConfig.operatorChars || /^[*+\-%<>!=&|~^]/,
support = parserConfig.support || {},
hooks = parserConfig.hooks || {},
dateSQL = parserConfig.dateSQL || {"date" : true, "time" : true, "timestamp" : true},
backslashStringEscapes = parserConfig.backslashStringEscapes !== false,
brackets = parserConfig.brackets || /^[\{}\(\)\[\]]/,
punctuation = parserConfig.punctuation || /^[;.,:]/
function tokenBase(stream, state) {
var ch = stream.next();
// call hooks from the mime type
if (hooks[ch]) {
var result = hooks[ch](stream, state);
if (result !== false) return result;
}
if (support.hexNumber &&
((ch == "0" && stream.match(/^[xX][0-9a-fA-F]+/))
|| (ch == "x" || ch == "X") && stream.match(/^'[0-9a-fA-F]+'/))) {
// hex
// ref: http://dev.mysql.com/doc/refman/5.5/en/hexadecimal-literals.html
return "number";
} else if (support.binaryNumber &&
(((ch == "b" || ch == "B") && stream.match(/^'[01]+'/))
|| (ch == "0" && stream.match(/^b[01]+/)))) {
// bitstring
// ref: http://dev.mysql.com/doc/refman/5.5/en/bit-field-literals.html
return "number";
} else if (ch.charCodeAt(0) > 47 && ch.charCodeAt(0) < 58) {
// numbers
// ref: http://dev.mysql.com/doc/refman/5.5/en/number-literals.html
stream.match(/^[0-9]*(\.[0-9]+)?([eE][-+]?[0-9]+)?/);
support.decimallessFloat && stream.match(/^\.(?!\.)/);
return "number";
} else if (ch == "?" && (stream.eatSpace() || stream.eol() || stream.eat(";"))) {
// placeholders
return "variable-3";
} else if (ch == "'" || (ch == '"' && support.doubleQuote)) {
// strings
// ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
state.tokenize = tokenLiteral(ch);
return state.tokenize(stream, state);
} else if ((((support.nCharCast && (ch == "n" || ch == "N"))
|| (support.charsetCast && ch == "_" && stream.match(/[a-z][a-z0-9]*/i)))
&& (stream.peek() == "'" || stream.peek() == '"'))) {
// charset casting: _utf8'str', N'str', n'str'
// ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
return "keyword";
} else if (support.commentSlashSlash && ch == "/" && stream.eat("/")) {
// 1-line comment
stream.skipToEnd();
return "comment";
} else if ((support.commentHash && ch == "#")
|| (ch == "-" && stream.eat("-") && (!support.commentSpaceRequired || stream.eat(" ")))) {
// 1-line comments
// ref: https://kb.askmonty.org/en/comment-syntax/
stream.skipToEnd();
return "comment";
} else if (ch == "/" && stream.eat("*")) {
// multi-line comments
// ref: https://kb.askmonty.org/en/comment-syntax/
state.tokenize = tokenComment(1);
return state.tokenize(stream, state);
} else if (ch == ".") {
// .1 for 0.1
if (support.zerolessFloat && stream.match(/^(?:\d+(?:e[+-]?\d+)?)/i))
return "number";
if (stream.match(/^\.+/))
return null
// .table_name (ODBC)
// // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
if (support.ODBCdotTable && stream.match(/^[\w\d_]+/))
return "variable-2";
} else if (operatorChars.test(ch)) {
// operators
stream.eatWhile(operatorChars);
return "operator";
} else if (brackets.test(ch)) {
// brackets
stream.eatWhile(brackets);
return "bracket";
} else if (punctuation.test(ch)) {
// punctuation
stream.eatWhile(punctuation);
return "punctuation";
} else if (ch == '{' &&
(stream.match(/^( )*(d|D|t|T|ts|TS)( )*'[^']*'( )*}/) || stream.match(/^( )*(d|D|t|T|ts|TS)( )*"[^"]*"( )*}/))) {
// dates (weird ODBC syntax)
// ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
return "number";
} else {
stream.eatWhile(/^[_\w\d]/);
var word = stream.current().toLowerCase();
// dates (standard SQL syntax)
// ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
if (dateSQL.hasOwnProperty(word) && (stream.match(/^( )+'[^']*'/) || stream.match(/^( )+"[^"]*"/)))
return "number";
if (atoms.hasOwnProperty(word)) return "atom";
if (builtin.hasOwnProperty(word)) return "builtin";
if (keywords.hasOwnProperty(word)) return "keyword";
if (client.hasOwnProperty(word)) return "string-2";
return null;
}
}
// 'string', with char specified in quote escaped by '\'
function tokenLiteral(quote) {
return function(stream, state) {
var escaped = false, ch;
while ((ch = stream.next()) != null) {
if (ch == quote && !escaped) {
state.tokenize = tokenBase;
break;
}
escaped = backslashStringEscapes && !escaped && ch == "\\";
}
return "string";
};
}
function tokenComment(depth) {
return function(stream, state) {
var m = stream.match(/^.*?(\/\*|\*\/)/)
if (!m) stream.skipToEnd()
else if (m[1] == "/*") state.tokenize = tokenComment(depth + 1)
else if (depth > 1) state.tokenize = tokenComment(depth - 1)
else state.tokenize = tokenBase
return "comment"
}
}
function pushContext(stream, state, type) {
state.context = {
prev: state.context,
indent: stream.indentation(),
col: stream.column(),
type: type
};
}
function popContext(state) {
state.indent = state.context.indent;
state.context = state.context.prev;
}
return {
startState: function() {
return {tokenize: tokenBase, context: null};
},
token: function(stream, state) {
if (stream.sol()) {
if (state.context && state.context.align == null)
state.context.align = false;
}
if (state.tokenize == tokenBase && stream.eatSpace()) return null;
var style = state.tokenize(stream, state);
if (style == "comment") return style;
if (state.context && state.context.align == null)
state.context.align = true;
var tok = stream.current();
if (tok == "(")
pushContext(stream, state, ")");
else if (tok == "[")
pushContext(stream, state, "]");
else if (state.context && state.context.type == tok)
popContext(state);
return style;
},
indent: function(state, textAfter) {
var cx = state.context;
if (!cx) return CodeMirror.Pass;
var closing = textAfter.charAt(0) == cx.type;
if (cx.align) return cx.col + (closing ? 0 : 1);
else return cx.indent + (closing ? 0 : config.indentUnit);
},
blockCommentStart: "/*",
blockCommentEnd: "*/",
lineComment: support.commentSlashSlash ? "//" : support.commentHash ? "#" : "--",
closeBrackets: "()[]{}''\"\"``"
};
});
(function() {
"use strict";
// `identifier`
function hookIdentifier(stream) {
// MySQL/MariaDB identifiers
// ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
var ch;
while ((ch = stream.next()) != null) {
if (ch == "`" && !stream.eat("`")) return "variable-2";
}
stream.backUp(stream.current().length - 1);
return stream.eatWhile(/\w/) ? "variable-2" : null;
}
// "identifier"
function hookIdentifierDoublequote(stream) {
// Standard SQL /SQLite identifiers
// ref: http://web.archive.org/web/20160813185132/http://savage.net.au/SQL/sql-99.bnf.html#delimited%20identifier
// ref: http://sqlite.org/lang_keywords.html
var ch;
while ((ch = stream.next()) != null) {
if (ch == "\"" && !stream.eat("\"")) return "variable-2";
}
stream.backUp(stream.current().length - 1);
return stream.eatWhile(/\w/) ? "variable-2" : null;
}
// variable token
function hookVar(stream) {
// variables
// @@prefix.varName @varName
// varName can be quoted with ` or ' or "
// ref: http://dev.mysql.com/doc/refman/5.5/en/user-variables.html
if (stream.eat("@")) {
stream.match(/^session\./);
stream.match(/^local\./);
stream.match(/^global\./);
}
if (stream.eat("'")) {
stream.match(/^.*'/);
return "variable-2";
} else if (stream.eat('"')) {
stream.match(/^.*"/);
return "variable-2";
} else if (stream.eat("`")) {
stream.match(/^.*`/);
return "variable-2";
} else if (stream.match(/^[0-9a-zA-Z$\.\_]+/)) {
return "variable-2";
}
return null;
};
// short client keyword token
function hookClient(stream) {
// \N means NULL
// ref: http://dev.mysql.com/doc/refman/5.5/en/null-values.html
if (stream.eat("N")) {
return "atom";
}
// \g, etc
// ref: http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html
return stream.match(/^[a-zA-Z.#!?]/) ? "variable-2" : null;
}
// these keywords are used by all SQL dialects (however, a mode can still overwrite it)
var sqlKeywords = "asc desc from in select where limit ";
// turn a space-separated list into an array
function set(str) {
var obj = {}, words = str.split(" ");
for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
return obj;
}
CodeMirror.defineMIME("text/qone", {
name: "sql",
keywords: set(sqlKeywords + "groupby orderby "),
builtin: set("bool boolean bit blob enum long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision real date datetime year unsigned signed decimal numeric"),
atoms: set("false true null undefined"),
operatorChars: /^[*+\-%<>!=]/,
dateSQL: set("date time timestamp"),
support: set("ODBCdotTable doubleQuote binaryNumber hexNumber")
});
}());
});
/*
How Properties of Mime Types are used by SQL Mode
=================================================
keywords:
A list of keywords you want to be highlighted.
builtin:
A list of builtin types you want to be highlighted (if you want types to be of class "builtin" instead of "keyword").
operatorChars:
All characters that must be handled as operators.
client:
Commands parsed and executed by the client (not the server).
support:
A list of supported syntaxes which are not common, but are supported by more than 1 DBMS.
* ODBCdotTable: .tableName
* zerolessFloat: .1
* doubleQuote
* nCharCast: N'string'
* charsetCast: _utf8'string'
* commentHash: use # char for comments
* commentSlashSlash: use // for comments
* commentSpaceRequired: require a space after -- for comments
atoms:
Keywords that must be highlighted as atoms,. Some DBMS's support more atoms than others:
UNKNOWN, INFINITY, UNDERFLOW, NaN...
dateSQL:
Used for date/time SQL standard syntax, because not all DBMS's support same temporal types.
*/
================================================
FILE: index.html
================================================
var list = [
{ name: 'qone', age: 1 },
{ name: 'linq', age: 18 },
{ name: 'tencent', age: 20 },
{ name: 'dntzhang', age: 28 }
]
var result = qone({ list }).query(`
`)
console.log(result)
================================================
FILE: package.json
================================================
{
"name": "qone",
"version": "2.0.0",
"main": "qone.js",
"description": "Next-generation web query language, extend .NET LINQ for javascript.",
"scripts": {
"lint": "eslint qone.js --fix",
"build": "uglifyjs -o qone.min.js --ie8 --compress --mangle -- qone.js"
},
"repository": {
"type": "git",
"url": "https://github.com/dntzhang/qone"
},
"keywords": [
"qone",
"linq",
"query"
],
"dependencies": {},
"devDependencies": {
"eslint": "^4.3.0",
"eslint-config-standard": "^10.2.1",
"eslint-plugin-import": "^2.7.0",
"eslint-plugin-node": "^5.1.1",
"eslint-plugin-promise": "^3.5.0",
"eslint-plugin-standard": "^3.0.1",
"uglifyjs": "^2.4.11"
},
"author": "dntzhang",
"license": "MIT",
"bugs": {
"url": "https://github.com/dntzhang/qone/issues/new"
},
"homepage": "https://dntzhang.github.io/qone/"
}
================================================
FILE: qone.js
================================================
/* qone v2.0.0 - Next-generation web query language, extend .NET LINQ for javascript.
* By dntzhang https://github.com/dntzhang
* Github: https://github.com/dntzhang/qone
* MIT Licensed.
*/
; (function(root, factory) {
if (typeof module === 'object' && module.exports) {
module.exports = factory()
} else {
root.qone = factory()
}
}(this, function() {
var WHITESPACE_CHARS = array2hash(characters(' \r\t\u200b'))
var OPERATOR_CHARS = array2hash(characters('+-*&%=<>!?|~^'))
var PUNC_CHARS = array2hash(characters('[]{}(),;:'))
var PUNC_BEFORE_EXPRESSION = array2hash(characters('[{}(,.;:'))
var KEYWORDS_ATOM = array2hash([
'false',
'null',
'true',
'undefined'
])
var atomMapping = { 'null': null, 'undefined': undefined, 'true': true, 'false': false }
function HOP(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop)
}
function isArray(item) {
return Object.prototype.toString.call(item) === '[object Array]'
}
function isObject(obj) {
return obj !== null && typeof obj === 'object' && !Array.isArray(obj);
}
function obj2keys(obj) {
var keys = []
for (var key in obj) keys.push(key)
return keys
}
function array2hash(a) {
var ret = {}
for (var i = 0; i < a.length; ++i) {
ret[a[i]] = true
}
return ret
}
function isDigit(ch) {
ch = ch.charCodeAt(0)
return ch >= 48 && ch <= 57 // XXX: find out if "UnicodeDigit" means something else than 0..9
}
function isAlphanumericChar(ch) {
return isDigit(ch) || isLetter(ch)
}
function characters(str) {
return str.split('')
}
var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i
var RE_OCT_NUMBER = /^0[0-7]+$/
var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i
function parseJsNumber(num) {
if (RE_HEX_NUMBER.test(num)) {
return parseInt(num.substr(2), 16)
} else if (RE_OCT_NUMBER.test(num)) {
return parseInt(num.substr(1), 8)
} else if (RE_DEC_NUMBER.test(num)) {
return parseFloat(num)
}
}
var KEYWORD = array2hash(['from', 'in', 'where', 'select', 'orderby', 'desc', 'asc', 'groupby', 'limit'])
var UNICODE = {
letter: new RegExp('[\\u0041-\\u005A\\u0061-\\u007A\\u00AA\\u00B5\\u00BA\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u0523\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971\\u0972\\u097B-\\u097F\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D3D\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC\\u0EDD\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8B\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10D0-\\u10FA\\u10FC\\u1100-\\u1159\\u115F-\\u11A2\\u11A8-\\u11F9\\u1200-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u1676\\u1681-\\u169A\\u16A0-\\u16EA\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u1900-\\u191C\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19A9\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u2094\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2C6F\\u2C71-\\u2C7D\\u2C80-\\u2CE4\\u2D00-\\u2D25\\u2D30-\\u2D65\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31B7\\u31F0-\\u31FF\\u3400\\u4DB5\\u4E00\\u9FC3\\uA000-\\uA48C\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA65F\\uA662-\\uA66E\\uA67F-\\uA697\\uA717-\\uA71F\\uA722-\\uA788\\uA78B\\uA78C\\uA7FB-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA90A-\\uA925\\uA930-\\uA946\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAC00\\uD7A3\\uF900-\\uFA2D\\uFA30-\\uFA6A\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]'),
non_spacing_mark: new RegExp('[\\u0300-\\u036F\\u0483-\\u0487\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065E\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0711\\u0730-\\u074A\\u07A6-\\u07B0\\u07EB-\\u07F3\\u0816-\\u0819\\u081B-\\u0823\\u0825-\\u0827\\u0829-\\u082D\\u0900-\\u0902\\u093C\\u0941-\\u0948\\u094D\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09BC\\u09C1-\\u09C4\\u09CD\\u09E2\\u09E3\\u0A01\\u0A02\\u0A3C\\u0A41\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A70\\u0A71\\u0A75\\u0A81\\u0A82\\u0ABC\\u0AC1-\\u0AC5\\u0AC7\\u0AC8\\u0ACD\\u0AE2\\u0AE3\\u0B01\\u0B3C\\u0B3F\\u0B41-\\u0B44\\u0B4D\\u0B56\\u0B62\\u0B63\\u0B82\\u0BC0\\u0BCD\\u0C3E-\\u0C40\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C62\\u0C63\\u0CBC\\u0CBF\\u0CC6\\u0CCC\\u0CCD\\u0CE2\\u0CE3\\u0D41-\\u0D44\\u0D4D\\u0D62\\u0D63\\u0DCA\\u0DD2-\\u0DD4\\u0DD6\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F71-\\u0F7E\\u0F80-\\u0F84\\u0F86\\u0F87\\u0F90-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u102D-\\u1030\\u1032-\\u1037\\u1039\\u103A\\u103D\\u103E\\u1058\\u1059\\u105E-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108D\\u109D\\u135F\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17B7-\\u17BD\\u17C6\\u17C9-\\u17D3\\u17DD\\u180B-\\u180D\\u18A9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193B\\u1A17\\u1A18\\u1A56\\u1A58-\\u1A5E\\u1A60\\u1A62\\u1A65-\\u1A6C\\u1A73-\\u1A7C\\u1A7F\\u1B00-\\u1B03\\u1B34\\u1B36-\\u1B3A\\u1B3C\\u1B42\\u1B6B-\\u1B73\\u1B80\\u1B81\\u1BA2-\\u1BA5\\u1BA8\\u1BA9\\u1C2C-\\u1C33\\u1C36\\u1C37\\u1CD0-\\u1CD2\\u1CD4-\\u1CE0\\u1CE2-\\u1CE8\\u1CED\\u1DC0-\\u1DE6\\u1DFD-\\u1DFF\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2CEF-\\u2CF1\\u2DE0-\\u2DFF\\u302A-\\u302F\\u3099\\u309A\\uA66F\\uA67C\\uA67D\\uA6F0\\uA6F1\\uA802\\uA806\\uA80B\\uA825\\uA826\\uA8C4\\uA8E0-\\uA8F1\\uA926-\\uA92D\\uA947-\\uA951\\uA980-\\uA982\\uA9B3\\uA9B6-\\uA9B9\\uA9BC\\uAA29-\\uAA2E\\uAA31\\uAA32\\uAA35\\uAA36\\uAA43\\uAA4C\\uAAB0\\uAAB2-\\uAAB4\\uAAB7\\uAAB8\\uAABE\\uAABF\\uAAC1\\uABE5\\uABE8\\uABED\\uFB1E\\uFE00-\\uFE0F\\uFE20-\\uFE26]'),
space_combining_mark: new RegExp('[\\u0903\\u093E-\\u0940\\u0949-\\u094C\\u094E\\u0982\\u0983\\u09BE-\\u09C0\\u09C7\\u09C8\\u09CB\\u09CC\\u09D7\\u0A03\\u0A3E-\\u0A40\\u0A83\\u0ABE-\\u0AC0\\u0AC9\\u0ACB\\u0ACC\\u0B02\\u0B03\\u0B3E\\u0B40\\u0B47\\u0B48\\u0B4B\\u0B4C\\u0B57\\u0BBE\\u0BBF\\u0BC1\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD7\\u0C01-\\u0C03\\u0C41-\\u0C44\\u0C82\\u0C83\\u0CBE\\u0CC0-\\u0CC4\\u0CC7\\u0CC8\\u0CCA\\u0CCB\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D57\\u0D82\\u0D83\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\\u0DF2\\u0DF3\\u0F3E\\u0F3F\\u0F7F\\u102B\\u102C\\u1031\\u1038\\u103B\\u103C\\u1056\\u1057\\u1062-\\u1064\\u1067-\\u106D\\u1083\\u1084\\u1087-\\u108C\\u108F\\u109A-\\u109C\\u17B6\\u17BE-\\u17C5\\u17C7\\u17C8\\u1923-\\u1926\\u1929-\\u192B\\u1930\\u1931\\u1933-\\u1938\\u19B0-\\u19C0\\u19C8\\u19C9\\u1A19-\\u1A1B\\u1A55\\u1A57\\u1A61\\u1A63\\u1A64\\u1A6D-\\u1A72\\u1B04\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43\\u1B44\\u1B82\\u1BA1\\u1BA6\\u1BA7\\u1BAA\\u1C24-\\u1C2B\\u1C34\\u1C35\\u1CE1\\u1CF2\\uA823\\uA824\\uA827\\uA880\\uA881\\uA8B4-\\uA8C3\\uA952\\uA953\\uA983\\uA9B4\\uA9B5\\uA9BA\\uA9BB\\uA9BD-\\uA9C0\\uAA2F\\uAA30\\uAA33\\uAA34\\uAA4D\\uAA7B\\uABE3\\uABE4\\uABE6\\uABE7\\uABE9\\uABEA\\uABEC]'),
connector_punctuation: new RegExp('[\\u005F\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]')
}
function isLetter(ch) {
return UNICODE.letter.test(ch) || ch==='_'
}
// deep-equal from npm
var deepEqual = function(actual, expected, opts) {
if (!opts) opts = {}
// 7.1. All identical values are equivalent, as determined by ===.
if (actual === expected) {
return true
} else if (actual instanceof Date && expected instanceof Date) {
return actual.getTime() === expected.getTime()
// 7.3. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if (!actual || !expected || typeof actual != 'object' && typeof expected != 'object') {
return opts.strict ? actual === expected : actual == expected
// 7.4. For all other Object pairs, including Array objects, equivalence is
// determined by having the same number of owned properties (as verified
// with Object.prototype.hasOwnProperty.call), the same set of keys
// (although not necessarily the same order), equivalent values for every
// corresponding key, and an identical 'prototype' property. Note: this
// accounts for both named and indexed properties on Arrays.
} else {
return objEquiv(actual, expected, opts)
}
}
function isUndefinedOrNull(value) {
return value === null || value === undefined
}
function objEquiv(a, b, opts) {
var i, key
if (isUndefinedOrNull(a) || isUndefinedOrNull(b)) { return false }
// an identical 'prototype' property.
if (a.prototype !== b.prototype) return false
// ~~~I've managed to break Object.keys through screwy arguments passing.
// Converting to array solves the problem.
try {
var ka = obj2keys(a),
kb = obj2keys(b)
} catch (e) { // happens when one is a string literal and the other isn't
return false
}
// having the same number of owned properties (keys incorporates
// hasOwnProperty)
if (ka.length != kb.length) { return false }
// the same set of keys (although not necessarily the same order),
ka.sort()
kb.sort()
// ~~~cheap key test
for (i = ka.length - 1; i >= 0; i--) {
if (ka[i] != kb[i]) { return false }
}
// equivalent values for every corresponding key, and
// ~~~possibly expensive deep test
for (i = ka.length - 1; i >= 0; i--) {
key = ka[i]
if (!deepEqual(a[key], b[key], opts)) return false
}
return typeof a === typeof b
}
/*
object-assign
(c) Sindre Sorhus
@license MIT
*/
var getOwnPropertySymbols = Object.getOwnPropertySymbols
var hasOwnProperty = Object.prototype.hasOwnProperty
var propIsEnumerable = Object.prototype.propertyIsEnumerable
function toObject(val) {
if (val === null || val === undefined) {
throw new TypeError('Object.assign cannot be called with null or undefined')
}
return Object(val)
}
function shouldUseNative() {
try {
if (!Object.assign) {
return false
}
// Detect buggy property enumeration order in older V8 versions.
// https://bugs.chromium.org/p/v8/issues/detail?id=4118
var test1 = new String('abc') // eslint-disable-line no-new-wrappers
test1[5] = 'de'
if (Object.getOwnPropertyNames(test1)[0] === '5') {
return false
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test2 = {}
for (var i = 0; i < 10; i++) {
test2['_' + String.fromCharCode(i)] = i
}
var order2 = Object.getOwnPropertyNames(test2).map(function(n) {
return test2[n]
})
if (order2.join('') !== '0123456789') {
return false
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test3 = {}
'abcdefghijklmnopqrst'.split('').forEach(function(letter) {
test3[letter] = letter
})
if (Object.keys(Object.assign({}, test3)).join('') !==
'abcdefghijklmnopqrst') {
return false
}
return true
} catch (err) {
// We don't expect any of the above to throw, but better to be safe.
return false
}
}
var objAssign = shouldUseNative() ? Object.assign : function(target, source) {
var from
var to = toObject(target)
var symbols
for (var s = 1; s < arguments.length; s++) {
from = Object(arguments[s])
for (var key in from) {
if (hasOwnProperty.call(from, key)) {
to[key] = from[key]
}
}
if (getOwnPropertySymbols) {
symbols = getOwnPropertySymbols(from)
for (var i = 0; i < symbols.length; i++) {
if (propIsEnumerable.call(from, symbols[i])) {
to[symbols[i]] = from[symbols[i]]
}
}
}
}
return to
}
var Lexer = function(text) {
this.line = 0
this.pos = 0
this.col = 0
this.text = text
this.list = []
}
Lexer.prototype = {
readNum: function(prefix) {
var has_e = false, after_e = false, has_x = false, has_dot = prefix == '.'
var num = this.readWhile(function(ch, i) {
if (ch == 'x' || ch == 'X') {
if (has_x) return false
return has_x = true
}
if (!has_x && (ch == 'E' || ch == 'e')) {
if (has_e) return false
return has_e = after_e = true
}
if (ch == '-') {
if (after_e || (i == 0 && !prefix)) return true
return false
}
if (ch == '+') return after_e
after_e = false
if (ch == '.') {
if (!has_dot && !has_x) { return has_dot = true }
return false
}
return isAlphanumericChar(ch)
})
if (prefix) { num = prefix + num }
return {
value: parseJsNumber(num),
type: 'number'
}
},
readWhile: function(pred) {
var ret = '', ch = this.peek(), i = 0
while (ch && pred(ch, i++)) {
ret += this.next()
ch = this.peek()
}
return ret
},
readName: function() {
var name = '', ch
while ((ch = this.peek()) != null) {
if (isLetter(ch) || isDigit(ch)) {
name += this.next()
} else {
break
}
}
return name
},
readString: function() {
var quote = this.next(), ret = ''
for (; ;) {
var ch = this.next()
// if (ch == "\\") ch = read_escaped_char();
if (ch == quote) break
ret += ch
}
return {
type: 'string',
value: ret,
line: this.line,
pos: this.pos,
col: this.col
}
},
readWord: function() {
var word = this.readName()
if (HOP(KEYWORD, word)) {
return {
type: 'keyword',
value: word,
line: this.line,
pos: this.pos,
col: this.col
}
} else if (HOP(KEYWORDS_ATOM, word)) {
return {
type: 'atom',
value: word,
line: this.line,
pos: this.pos,
col: this.col
}
} else {
return {
type: 'name',
value: word,
line: this.line,
pos: this.pos,
col: this.col
}
}
},
next: function() {
var ch = this.text.charAt(this.pos++)
if (ch == '\n') {
this.line++
this.col = 0
} else {
this.col++
}
return ch
},
peek: function() {
return this.text.charAt(this.pos)
},
skipWhitespace: function() {
while (HOP(WHITESPACE_CHARS, this.peek())) {
this.next()
}
},
scan: function() {
this.skipWhitespace()
var ch = this.peek()
if (isLetter(ch)) {
return this.readWord()
} else if (HOP(PUNC_CHARS, ch)) {
return {
type: 'punc',
value: this.next()
}
} else if (HOP(PUNC_BEFORE_EXPRESSION, ch)) {
return {
type: 'punc',
value: this.next()
}
} else if (HOP(OPERATOR_CHARS, ch)) {
if (ch === '&' && this.text.charAt(this.pos + 1) === '&') {
this.col += 2
this.pos += 2
return {
type: 'operator',
value: '&&'
}
} else if (ch === '|' && this.text.charAt(this.pos + 1) === '|') {
this.col += 2
this.pos += 2
return {
type: 'operator',
value: '||'
}
} else if (ch === '!' && this.text.charAt(this.pos + 1) === '=') {
if (this.text.charAt(this.pos + 2) === '=') {
this.col += 3
this.pos += 3
} else {
this.col += 2
this.pos += 2
}
return {
type: 'operator',
value: '!='
}
} else if (ch === '<' && this.text.charAt(this.pos + 1) === '>') {
this.col += 2
this.pos += 2
return {
type: 'operator',
value: '!='
}
} else if (ch === '=' && this.text.charAt(this.pos + 1) === '=') {
if (this.text.charAt(this.pos + 2) === '=') {
this.col += 3
this.pos += 3
} else {
this.col += 2
this.pos += 2
}
return {
type: 'operator',
value: '='
}
} else if (ch === '>' && this.text.charAt(this.pos + 1) === '=') {
this.col += 2
this.pos += 2
return {
type: 'operator',
value: '>='
}
} else if (ch === '<' && this.text.charAt(this.pos + 1) === '=') {
this.col += 2
this.pos += 2
return {
type: 'operator',
value: '<='
}
}
return {
type: 'operator',
value: this.next()
}
} else if (isDigit(ch)) {
return this.readNum()
} else if (ch == '\n') {
return {
type: 'br',
value: this.next()
}
} else if (ch == '"' || ch == "'") {
return this.readString()
}
},
start: function() {
var t = this.scan()
if (t !== undefined) {
this.list.push(t)
this.start()
}
}
}
var Parser = function(tokens) {
this.tokens = tokens
this.index = 0
this.ast = []
}
Parser.prototype = {
start: function() {
this.parse()
},
_isKeyword: function(item) {
return item.type === 'keyword' && (item.value === 'from' || item.value === 'where' || item.value === 'select' || item.value === 'orderby' || item.value === 'groupby' || item.value === 'limit')
},
_conditions: function() {
var exp = []
var item = this.tokens[this.index]
while (!this._isKeyword(item)) {
if (this._is('punc', '(')) {
this.index++
exp.push([this._conditionBlock()])
} else if (item.value === '&&' || item.value === '||') {
this.index++
exp.push(item.value)
exp.push(this._condition())
} else if (this._is(item, 'operator', '!')) {
var next = this.tokens[this.index + 1]
if (this._is(next, 'punc', '(')) {
this.index += 2
exp.push(['!', this._conditionBlock()])
} else if (next.type === 'name') {
this.index++
exp.push(['!', this._prop()])
}
} else {
var arr = this._condition()
if (arr.length > 0) {
exp.push(arr)
}
}
this.index++
item = this.tokens[this.index]
}
return exp
},
_conditionBlock: function() {
var exp = []
var item = this.tokens[this.index]
while (!(this._is(item, 'punc', ')') || this._isKeyword(item))) {
if (this._is(item, 'punc', '(')) {
this.index++
exp.push(this._conditionBlock())
} else if (item.value === '&&' || item.value === '||') {
this.index++
exp.push(item.value)
exp.push(this._condition())
} else if (this._is(item, 'operator', '!')) {
var next = this.tokens[this.index + 1]
if (this._is(next, 'punc', '(')) {
this.index += 2
exp.push(['!', this._conditionBlock()])
} else if (next.type === 'name') {
this.index++
exp.push(['!', this._prop()])
}
} else {
exp.push(this._condition())
}
this.index++
item = this.tokens[this.index]
}
return exp
},
_condition: function() {
var exp = []
var item = this.tokens[this.index]
while (!(
this._is(item, 'punc', ')') ||
((item.value === '&&' || item.value === '||') && item.type === 'operator') ||
this._isKeyword(item)
)) {
if (this._is(item, 'punc', '(')) {
this.index++
exp.push(this._conditionBlock())
} else if (item.type === 'name') {
exp.push(this._prop())
} else if (this._is(item, 'operator', '!')) {
var next = this.tokens[this.index + 1]
if (this._is(next, 'punc', '(')) {
this.index += 2
exp.push(['!', this._conditionBlock()])
} else if (next.type === 'name') {
this.index++
exp.push(['!', this._prop()])
}
} else if (item.type === 'atom') {
exp.push(atomMapping[item.value])
} else if (item.type !== 'br') {
exp.push(item.value)
}
this.index++
item = this.tokens[this.index]
}
this.index--
return exp
},
_prop: function() {
var result = []
var item = this.tokens[this.index]
if (item.type === 'name' &&this.tokens[this.index + 1] && this._is(this.tokens[this.index + 1], 'punc', '(')) {
this.index += 2
result = { name: item.value, args: this._args() }
} else {
while (item&&(item.type === 'string' || item.type === 'number' || item.type === 'name' || item.type === 'atom' ||
(item.type === 'punc' &&
(item.value === '.' || item.value === '[' || item.value === ']')))) {
if (!(item.type === 'punc' &&
(item.value === '.' || item.value === '[' || item.value === ']'))) {
if (result.length > 0 || item.type === 'name') {
result.push(item.value)
} else {
result = item
}
}
this.index++
item = this.tokens[this.index]
}
this.index--
}
return result
},
_parseCondition: function(preCond) {
var cond = this._splitArray(preCond, '||'),
self = this
cond.forEach(function(item, index) {
if (isArray(item)) {
cond[index] = self._parseCondition(item)
}
})
return cond
},
_splitArray: function(array, key) {
if (array.indexOf(key) === -1) {
return array
}
var result = [],
current = []
array.forEach(function(item) {
if (item !== key) {
current.push(item)
} else {
result.push(current)
result.push(key)
current = []
}
})
result.push(current)
return result
},
_select: function() {
var item = this.tokens[this.index]
if (item.value === '{') {
this.index++
if (this.tokens[this.index + 1].value === ':') {
return this._json()
} else {
return this._simpleJson()
}
} else {
return this._propList()
}
},
_json: function() {
var result = []
var item = this.tokens[this.index],
current = {}
while (item.value !== '}') {
if (this.tokens[this.index + 1].value === ':') {
current.key = this._prop()[0]
}
if (item.value === ':') {
this.index++
current.value = this._prop()
} else if (item.value === ',') {
this.index++
result.push(current)
current = {}
current.key = this._prop()[0]
}
this.index++
item = this.tokens[this.index]
}
result.push(current)
this.index--
return { json: result }
},
_simpleJson: function() {
var result = []
var item = this.tokens[this.index]
while (item.value !== '}') {
result = this._propList()
item = this.tokens[this.index]
}
this.index--
var jsonArr = []
result.forEach(function(item) {
jsonArr.push({ key: item[item.length - 1], value: item })
})
return { json: jsonArr }
},
_propList: function() {
var result = []
var item = this.tokens[this.index]
while (item && item.value !== '}' && !this._isKeyword(item)) {
if (item.value === ',' || item.type === 'br') {
this.index++
} else {
result.push(this._prop())
this.index++
}
item = this.tokens[this.index]
}
return result
},
_is: function(item, type, value) {
return item.type === type && item.value === value
},
_args: function() {
var result = [],
item = this.tokens[this.index]
while (!(this._is(item, 'punc', ')'))) {
if (this._is(this.tokens[this.index], 'punc', ',')) {
this.index++
}
var exp = this._prop()
result.push(exp)
this.index++
item = this.tokens[this.index]
}
return result
},
_orderby: function() {
var prop = []
var item = this.tokens[this.index]
var current = { desc: false }
while (!(item.type === 'keyword' && item.value !== 'desc' && item.value !== 'asc')) {
if (item.type === 'name') {
current.prop = this._prop()
} else if (this._is(item, 'keyword', 'desc')) {
current.desc = true
prop.push(current)
current = { desc: false }
} else if (this._is(item, 'punc', ',')) {
if (current.prop) {
prop.push(current)
}
current = { desc: false }
}
this.index++
item = this.tokens[this.index]
}
if (current.prop) {
prop.push(current)
}
return prop
},
_limit: function() {
var result = []
var item = this.tokens[this.index]
while (item && !this._isKeyword(item)) {
if (item.type === 'number') {
result.push(item.value)
}
this.index++
item = this.tokens[this.index]
}
return result
},
parse: function() {
var item = this.tokens[this.index]
if (!item) {
return
}
switch (item.type) {
case 'keyword':
switch (item.value) {
case 'from':
var key = this.tokens[this.index + 1].value
this.index += 3
this.ast.push(['from', [key, this._prop()]])
this.index += 1
this.parse()
break
case 'where':
this.index++
this.ast.push(['where', this._parseCondition(this._conditions())])
this.parse()
break
case 'select':
this.index++
this.ast.push(['select', this._select()])
this.parse()
break
case 'orderby':
this.index++
this.ast.push(['orderby', this._orderby()])
this.parse()
break
case 'groupby':
this.index++
this.ast.push(['groupby', this._propList()])
this.parse()
break
case 'limit':
this.index++
this.ast.push(['limit', this._limit()])
this.parse()
break
}
break
case 'br':
this.index++
this.parse()
break
}
}
}
var Qone = function(data) {
this.data = this.extend(data)
this.ast = null
this.keyMap = {}
}
Qone.methodMap = {}
Qone.prototype = {
extend: function(from, to) {
if (from == null || typeof from != 'object') return from
if (from.constructor != Object && from.constructor != Array) return from
if (from.constructor == Date || from.constructor == RegExp || from.constructor == Function ||
from.constructor == String || from.constructor == Number || from.constructor == Boolean) { return new from.constructor(from) }
to = to || new from.constructor()
for (var name in from) {
to[name] = typeof to[name] == 'undefined' ? this.extend(from[name], null) : to[name]
}
return to
},
query: function(text) {
var lexer = new Lexer(text)
lexer.start()
var parser = new Parser(lexer.list)
parser.start()
this.ast = parser.ast
this.exce()
return this.result
},
preprocessData: function(key, list) {
list.forEach(function(subItem, index, self) {
self[index] = {}
self[index][key] = subItem
})
},
productSelf: function(key, path) {
var self = this,
newCp = []
this.cp.forEach(function(item) {
var list = JSON.parse(JSON.stringify(self._getDataByPath(item, path)))
self.preprocessData(key, list)
self.productOut([item], list, newCp)
})
this.cp = newCp
},
exce: function() {
var ast = this.ast,
key
var i = 0, len = ast.length
for (; i < len; i++) {
var cmd = ast[i]
switch (cmd[0]) {
case 'from':
var topName = cmd[1][1][0]
if (this.keyMap[topName]) {
this.keyMap[cmd[1][0]] = cmd[1][1]
this.productSelf(cmd[1][0], cmd[1][1], this.keyMap, this.cp)
} else {
key = cmd[1][0]
var list = this._getDataByPath(this.data, cmd[1][1])
this.preprocessData(key, list)
if (this.cp) {
this.cp = this.product(this.cp, list)
} else {
this.cp = list
}
this.keyMap[cmd[1][0]] = cmd[1][1]
}
if (ast[i + 1][0] === 'where') {
this.filter(ast[i + 1][1])
i++
}
break
case 'where':
this.filter(ast[i][1])
break
case 'select':
this.select(cmd[1])
break
case 'orderby':
var keys = []
var orders = []
cmd[1].forEach(function(item) {
keys.push(item.prop)
orders.push(item.desc ? 'desc' : 'asc')
})
this._orderby(this.cp, keys, orders)
break
case 'groupby':
this.groupby(this.cp, cmd[1])
key = obj2keys(this.keyMap)[0]
this.result.forEach(function(arr) {
arr.forEach(function(item, index, scope) {
scope[index] = item[key]
})
})
break
case 'limit':
this.limitData(cmd[1])
break
}
}
},
limitData: function(arr) {
this.result = this.result.splice(arr[0], arr[1])
},
// grouper from npm
groupby: function(arr, props, opts) {
var comparator,
self = this
if (typeof props === 'function') {
comparator = props
} else {
if (isObject(props)) { // argument shuffling for grouping by object value
opts = props
props = []
}
opts = opts || {}
if (typeof opts.strict === 'undefined') {
opts.strict = true // default to strict `===`
}
props = [].concat(props).filter(Boolean)
var propsLen = props.length
if (propsLen === 0) {
comparator = function(a, b) {
return deepEqual(a, b, opts)
}
} else {
comparator = function(a, b) {
var k = -1
while (++k < propsLen) {
// check if `a` has the same values as `b` for every property in `props`
var prop = props[k],
left,
right
if (isArray(prop)) {
left = self._getDataByPath(a, prop)
right = self._getDataByPath(b, prop)
} else {
left = self.callMethod(a, prop.name, prop.args)
right = self.callMethod(b, prop.name, prop.args)
}
if (!deepEqual(left, right, opts)) {
return false
}
}
return true
}
}
}
var result = []
var arrLen = arr.length
var i = -1
// for every `arr[i]` in `arr`...
while (++i < arrLen) {
var wasAdded = false
var resultLen = result.length
var j = -1
// for every `result[j]` group in `result`...
while (++j < resultLen) {
// check if `arr[i]` belongs to the `result[j]` group
if (comparator(arr[i], result[j][0])) {
result[j].push(arr[i])
wasAdded = true
}
}
// if `arr[i]` was not added to any group, create a new group containing only
// `arr[i]` and add it to `result`
if (!wasAdded) {
result.push([arr[i]])
}
}
this.result = result
},
callMethod: function(scope, name, args) {
var argsValue = [],
self = this
args.forEach(function(arg) {
if (isArray(arg)) {
argsValue.push(self._getDataByPath(scope, arg))
} else {
argsValue.push(arg.value)
}
})
return Qone.methodMap[name].apply(null, argsValue)
},
select: function(cmd) {
var result = [],
self = this,
json = cmd.json,
data = null
if (json) {
this.cp.forEach(function(item) {
var obj = {}
if (json.length === 1) {
var prop = json[0]
if (isArray(prop.value)) {
data = self._getDataByPath(item, prop.value)
} else {
data = self.callMethod(item, prop.value.name, prop.value.args)
}
obj[prop.key] = data
result.push(obj)
} else {
json.forEach(function(prop) {
if (isArray(prop.value)) {
data = self._getDataByPath(item, prop.value)
} else {
data = self.callMethod(item, prop.value.name, prop.value.args)
}
obj[prop.key] = data
})
result.push(obj)
}
})
} else {
this.cp.forEach(function(item) {
if (cmd.length === 1) {
var prop = cmd[0]
if (isArray(prop)) {
data = self._getDataByPath(item, prop)
} else {
data = self.callMethod(item, prop.name, prop.args)
}
result.push(data)
} else {
var arr = []
cmd.forEach(function(prop) {
if (isArray(prop)) {
data = self._getDataByPath(item, prop)
} else {
data = self.callMethod(item, prop.name, prop.args)
}
arr.push(data)
})
result.push(arr)
}
})
}
this.result = result
},
filter: function(where) {
var self = this
var result = []
this.cp.forEach(function(item) {
if (self._check(item, where)) {
result.push(item)
}
})
this.result = result
this.cp = result
},
product: function(a, b) {
var result = []
a.forEach(function(itemA) {
b.forEach(function(itemB) {
result.push(objAssign({}, itemA, itemB))
})
})
return result
},
productOut: function(a, b, out) {
a.forEach(function(itemA) {
b.forEach(function(itemB) {
out.push(objAssign({}, itemA, itemB))
})
})
},
_isBool: function(cond) {
var result = true,
i = 0,
len = cond.length
for (; i < len; i++) {
if (typeof cond[i] === 'object') {
result = false
break
}
}
return result
},
_check: function(item, cond) {
var self = this
var len = cond.length
if (len === 1 && isArray(cond)) {
return this._check(item, cond[0])
} else if (len === 2 && cond[0] === '!') {
return !this._check(item, cond[1])
} else if (this._isBool(cond)) {
if (isArray(cond)) {
return this._getDataByPath(item, cond)
} else {
return this.callMethod(item, cond.name, cond.args)
}
} else if (len === 3 && (cond[1] !== '||' && cond[1] !== '&&')) {
return this._checkCond(item, cond)
} else {
var i = 0,
result = true
while (i < len) {
var condItem = cond[i]
result = self._check(item, condItem)
i++
if (result) {
if (cond[i] === '||') {
return true
}
} else {
if (cond[i] === '&&') {
return false
}
}
i++
}
return result
}
},
_checkCond: function(item, cond) {
var result = true,
left = cond[0],
right = cond[2]
if (isArray(left)) {
left = this._getDataByPath(item, left)
} else if (isObject(left)) {
left = this.callMethod(item, left.name, left.args)
}
if (isArray(right)) {
right = this._getDataByPath(item, right)
} else if (isObject(right)) {
right = this.callMethod(item, right.name, right.args)
}
if (!this._cond(left, cond[1], right)) {
result = false
}
return result
},
_cond: function(a, op, b) {
switch (op) {
case '>':
return a > b
case '<':
return a < b
case '>=':
return a >= b
case '<=':
return a <= b
case '=':
return a === b
case '!=':
return a !== b
}
},
_getDataByPath: function(root, arr) {
var current = root
arr.forEach(function(prop, index) {
current = current[prop]
})
return current
},
// ipe from https://gist.github.com/finom/727b971ca5d62d25a228
_orderby: function(arr, keys, orders) {
var defaultOrder = 'asc',
commonOrder,
self = this,
left,
right
if ('length' in arr && typeof arr == 'object') {
if (!(orders instanceof Array)) {
commonOrder = orders || defaultOrder
}
keys = keys instanceof Array ? keys : [keys]
return arr.sort(function(a, b) {
var length = keys.length,
i,
order,
key
if (a && b) {
for (i = 0; i < length; i++) {
key = keys[i]
order = (commonOrder || orders[i] || defaultOrder) == 'asc' ? -1 : 1
if (isArray(key)) {
left = self._getDataByPath(a, key)
right = self._getDataByPath(b, key)
} else {
left = self.callMethod(a, key.name, key.args)
right = self.callMethod(b, key.name, key.args)
}
if (left > right) {
return -order
} else if (left < right) {
return order
}
}
}
return 0
})
} else {
return []
}
}
}
var qone = function qone(data) {
if (arguments.length === 2) {
var methodName = arguments[0]
if (Qone.methodMap[methodName]) {
console.warn('[' + methodName + '] method has been defined. you will rewrite it.')
}
Qone.methodMap[methodName] = arguments[1]
} else {
return new Qone(data)
}
}
return qone
}))
================================================
FILE: test/clone.html
================================================
| Expected: | " + escapeText(expected) + " |
|---|---|
| Result: | " + escapeText(actual) + " |
| Diff: | " + diff + " |
| Source: | " + escapeText(details.source) + " |
| Source: | " + escapeText(details.source) + " |
|---|