Repository: iurimateus/luasnip-latex-snippets.nvim
Branch: main
Commit: a14821dd680d
Files: 16
Total size: 39.8 KB

Directory structure:
gitextract_zfiap6pl/

├── .luacheckrc
├── .stylua.toml
├── LICENSE
├── README.md
└── lua/
    └── luasnip-latex-snippets/
        ├── bwA.lua
        ├── init.lua
        ├── math_i.lua
        ├── math_iA.lua
        ├── math_iA_no_backslash.lua
        ├── math_rA_no_backslash.lua
        ├── math_wA_no_backslash.lua
        ├── math_wRA_no_backslash.lua
        ├── math_wrA.lua
        ├── util/
        │   ├── ts_utils.lua
        │   └── utils.lua
        └── wA.lua

================================================
FILE CONTENTS
================================================

================================================
FILE: .luacheckrc
================================================
-- vim: ft=lua tw=80

stds.nvim = {
  globals = {
    vim = { fields = { "g" } },
  },
  read_globals = {
    "vim",
  },
}
std = "lua51+nvim"

-- Don't report unused self arguments of methods.
self = false

ignore = {
  "631", -- max_line_length
  "212/_.*", -- unused argument, for vars with "_" prefix
}


================================================
FILE: .stylua.toml
================================================
column_width = 100
indent_type = "Spaces"
indent_width = 2
quote_style = "AutoPreferDouble"
no_call_parentheses = false


================================================
FILE: LICENSE
================================================
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================================================
FILE: README.md
================================================
# luasnip-latex-snippets

A port of [Gilles Castel's](https://github.com/gillescastel/latex-snippets)
snippets for the [LuaSnip Engine](https://github.com/L3MON4D3/LuaSnip).

## Why?

UltiSnips felt unbearably slow. See
<https://github.com/neovim/neovim/issues/7063> and
<https://github.com/SirVer/ultisnips/issues?q=label%3A%22neovim+only%22+is%3Aclosed>.

## Installation

Depends on [vimtex](https://github.com/lervag/vimtex) to determine if the
cursor is within math mode. Alternatively, you can use
[nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter) (experimental) by passing `{ use_treesitter = true }` to the setup call.

It's necessary to enable `autosnippets` in luasnip: `require("luasnip").config.setup { enable_autosnippets = true }`.

Can be installed like any neovim plugin. If using
[wbthomason/packer.nvim](https://github.com/wbthomason/packer.nvim):

```lua
use {
  "iurimateus/luasnip-latex-snippets.nvim",
  -- vimtex isn't required if using treesitter
  requires = { "L3MON4D3/LuaSnip", "lervag/vimtex" },
  config = function()
    require'luasnip-latex-snippets'.setup()
    -- or setup({ use_treesitter = true })
    require("luasnip").config.setup { enable_autosnippets = true }
  end,
}
```

## Configuration

```
{
  use_treesitter = false, -- whether to use treesitter to determine if cursor is in math mode; if false, vimtex is used
  allow_on_markdown = true, -- whether to add snippets to markdown filetype
}
```

## Misc

The following convention, from
[SirVer/ultisnips](https://github.com/SirVer/ultisnips), is used for naming lua
tables and respective files:

```
A: Automatic snippet expansion - snippets will activate as soon as their trigger
matches.

w: Word boundary - With this option the snippet trigger will match when the
trigger is a word boundary character. This is the default behavior.

b: Beginning of line expansion - A snippet with this option is expanded only if
the trigger is the first word on the line (i.e., only whitespace precedes the
trigger).
```

Note that the _regex_ term used in LuaSnip is misleading: it is not a POSIX
regexp. What's actually being used is Lua pattern matching, which has some
limitations. In particular, it lacks positive lookbehind and alternation `|`.
The first which is used in postfix completions (e.g. match `delta`, but not
`\delta`) and can be handled with simple functions. The second was solved by
splitting and/or partially rewriting the expressions.

### Adding your own snippets / overrides

See discussion https://github.com/iurimateus/luasnip-latex-snippets.nvim/discussions/3#discussioncomment-11348745

```lua
local ls = require("luasnip")
local utils = require("luasnip-latex-snippets.util.utils")
local not_math = utils.not_math() -- pass true if using Treesitter

-- set a higher priority (defaults to 0 for most snippets)
local snip = ls.parser.parse_snippet(
  { trig = "mk", name = "Math", condition = not_math, priority = 10 },
  "$ ${1:${TM_SELECTED_TEXT}} $$0"
)

ls.add_snippets("tex", { snip }, {
  type = "autosnippets",
})
```

## Roadmap

- [ ] Tests


================================================
FILE: lua/luasnip-latex-snippets/bwA.lua
================================================
local ls = require("luasnip")
local t = ls.text_node
local i = ls.insert_node

local M = {}

function M.retrieve(not_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe = utils.pipe

  local conds = require("luasnip.extras.expand_conditions")
  local condition = pipe({ conds.line_begin, not_math })

  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    condition = condition,
  }) --[[@as function]]

  local s = ls.extend_decorator.apply(ls.snippet, {
    condition = condition,
  }) --[[@as function]]

  return {
    s(
      { trig = "ali", name = "Align" },
      { t({ "\\begin{align*}", "\t" }), i(1), t({ "", "\\end{align*}" }) }
    ),

    parse_snippet({ trig = "beg", name = "begin{} / end{}" }, "\\begin{$1}\n\t$0\n\\end{$1}"),

    s({ trig = "bigfun", name = "Big function" }, {
      t({ "\\begin{align*}", "\t" }),
      i(1),
      t(":"),
      t(" "),
      i(2),
      t("&\\longrightarrow "),
      i(3),
      t({ " \\", "\t" }),
      i(4),
      t("&\\longmapsto "),
      i(1),
      t("("),
      i(4),
      t(")"),
      t(" = "),
      i(0),
      t({ "", "\\end{align*}" }),
    }),
  }
end

return M


================================================
FILE: lua/luasnip-latex-snippets/init.lua
================================================
local M = {}

local default_opts = {
  use_treesitter = false,
  allow_on_markdown = true,
}

M.setup = function(opts)
  opts = vim.tbl_deep_extend("force", default_opts, opts or {})

  local augroup = vim.api.nvim_create_augroup("luasnip-latex-snippets", {})
  vim.api.nvim_create_autocmd("FileType", {
    pattern = "tex",
    group = augroup,
    once = true,
    callback = function()
      local utils = require("luasnip-latex-snippets.util.utils")
      local is_math = utils.with_opts(utils.is_math, opts.use_treesitter)
      local not_math = utils.with_opts(utils.not_math, opts.use_treesitter)
      M.setup_tex(is_math, not_math)
    end,
  })

  if opts.allow_on_markdown then
    vim.api.nvim_create_autocmd("FileType", {
      pattern = { "markdown", "quarto" },
      group = augroup,
      once = true,
      callback = function()
        M.setup_markdown()
      end,
    })
  end
end

local _autosnippets = function(is_math, not_math)
  local autosnippets = {}

  for _, s in ipairs({
    "math_wRA_no_backslash",
    "math_rA_no_backslash",
    "math_wA_no_backslash",
    "math_iA_no_backslash",
    "math_iA",
    "math_wrA",
  }) do
    vim.list_extend(
      autosnippets,
      require(("luasnip-latex-snippets.%s"):format(s)).retrieve(is_math)
    )
  end

  for _, s in ipairs({
    "wA",
    "bwA",
  }) do
    vim.list_extend(
      autosnippets,
      require(("luasnip-latex-snippets.%s"):format(s)).retrieve(not_math)
    )
  end

  return autosnippets
end

M.setup_tex = function(is_math, not_math)
  local ls = require("luasnip")
  ls.add_snippets("tex", {
    ls.parser.parse_snippet(
      { trig = "pac", name = "Package" },
      "\\usepackage[${1:options}]{${2:package}}$0"
    ),

    -- ls.parser.parse_snippet({ trig = "nn", name = "Tikz node" }, {
    --   "$0",
    --   -- "\\node[$5] (${1/[^0-9a-zA-Z]//g}${2}) ${3:at (${4:0,0}) }{$${1}$};",
    --   "\\node[$5] (${1}${2}) ${3:at (${4:0,0}) }{$${1}$};",
    -- }),
  })

  local math_i = require("luasnip-latex-snippets/math_i").retrieve(is_math)

  ls.add_snippets("tex", math_i, { default_priority = 0 })

  ls.add_snippets("tex", _autosnippets(is_math, not_math), {
    type = "autosnippets",
    default_priority = 0,
  })
end

M.setup_markdown = function()
  local ls = require("luasnip")
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe = utils.pipe

  local is_math = utils.with_opts(utils.is_math, true)
  local not_math = utils.with_opts(utils.not_math, true)

  local math_i = require("luasnip-latex-snippets/math_i").retrieve(is_math)
  ls.add_snippets("markdown", math_i, { default_priority = 0 })

  local autosnippets = _autosnippets(is_math, not_math)
  local trigger_of_snip = function(s)
    return s.trigger
  end

  local to_filter = {}
  for _, str in ipairs({
    "wA",
    "bwA",
  }) do
    local t = require(("luasnip-latex-snippets.%s"):format(str)).retrieve(not_math)
    vim.list_extend(to_filter, vim.tbl_map(trigger_of_snip, t))
  end

  local filtered = vim.tbl_filter(function(s)
    return not vim.tbl_contains(to_filter, s.trigger)
  end, autosnippets)

  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    condition = pipe({ not_math }),
  }) --[[@as function]]

  -- tex delimiters
  local normal_wA_tex = {
    parse_snippet({ trig = "mk", name = "Math" }, "$${1:${TM_SELECTED_TEXT}}$"),
    parse_snippet({ trig = "dm", name = "Block Math" }, "$$\n\t${1:${TM_SELECTED_TEXT}}\n$$"),
  }
  vim.list_extend(filtered, normal_wA_tex)

  ls.add_snippets("markdown", filtered, {
    type = "autosnippets",
    default_priority = 0,
  })
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_i.lua
================================================
local M = {}

local ls = require("luasnip")
local utils = require("luasnip-latex-snippets.util.utils")
local pipe = utils.pipe

function M.retrieve(is_math)
  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    wordTrig = false,
    condition = pipe({ is_math }),
    show_condition = is_math,
  }) --[[@as function]]

  return {
    parse_snippet({ trig = "sum", name = "sum" }, "\\sum_{n=${1:1}}^{${2:\\infty}} ${3:a_n z^n}"),

    parse_snippet(
      { trig = "taylor", name = "taylor" },
      "\\sum_{${1:k}=${2:0}}^{${3:\\infty}} ${4:c_$1} (x-a)^$1 $0"
    ),

    parse_snippet({ trig = "lim", name = "limit" }, "\\lim_{${1:n} \\to ${2:\\infty}} "),
    parse_snippet({ trig = "limsup", name = "limsup" }, "\\limsup_{${1:n} \\to ${2:\\infty}} "),

    parse_snippet(
      { trig = "prod", name = "product" },
      "\\prod_{${1:n=${2:1}}}^{${3:\\infty}} ${4:${TM_SELECTED_TEXT}} $0"
    ),

    parse_snippet(
      { trig = "part", name = "d/dx" },
      "\\frac{\\partial ${1:V}}{\\partial ${2:x}} $0"
    ),
    parse_snippet(
      { trig = "ddx", name = "d/dx" },
      "\\frac{\\mathrm{d${1:V}}}{\\mathrm{d${2:x}}} $0"
    ),

    parse_snippet({ trig = "pmat", name = "pmat" }, "\\begin{pmatrix} $1 \\end{pmatrix} $0"),

    parse_snippet(
      { trig = "lr", name = "left( right)" },
      "\\left( ${1:${TM_SELECTED_TEXT}} \\right) $0"
    ),
    parse_snippet(
      { trig = "lr(", name = "left( right)" },
      "\\left( ${1:${TM_SELECTED_TEXT}} \\right) $0"
    ),
    parse_snippet(
      { trig = "lr|", name = "left| right|" },
      "\\left| ${1:${TM_SELECTED_TEXT}} \\right| $0"
    ),
    parse_snippet(
      { trig = "lr{", name = "left{ right}" },
      "\\left\\{ ${1:${TM_SELECTED_TEXT}} \\right\\\\} $0"
    ),
    parse_snippet(
      { trig = "lr[", name = "left[ right]" },
      "\\left[ ${1:${TM_SELECTED_TEXT}} \\right] $0"
    ),
    parse_snippet(
      { trig = "lra", name = "leftangle rightangle" },
      "\\left< ${1:${TM_SELECTED_TEXT}} \\right>$0"
    ),

    parse_snippet(
      { trig = "lrb", name = "left\\{ right\\}" },
      "\\left\\{ ${1:${TM_SELECTED_TEXT}} \\right\\\\} $0"
    ),

    parse_snippet(
      { trig = "sequence", name = "Sequence indexed by n, from m to infinity" },
      "(${1:a}_${2:n})_{${2:n}=${3:m}}^{${4:\\infty}}"
    ),
  }
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_iA.lua
================================================
local M = {}

local ls = require("luasnip")
local f = ls.function_node

function M.retrieve(is_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe, no_backslash = utils.pipe, utils.no_backslash

  local decorator = {
    wordTrig = false,
    condition = pipe({ is_math, no_backslash }),
  }

  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, decorator) --[[@as function]]
  local s = ls.extend_decorator.apply(ls.snippet, decorator) --[[@as function]]

  return {
    s(
      {
        trig = "(%a+)bar",
        wordTrig = false,
        regTrig = true,
        name = "bar",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\overline{%s}", snip.captures[1])
      end, {})
    ),
    s(
      {
        trig = "(%a+)und",
        wordTrig = false,
        regTrig = true,
        name = "underline",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\underline{%s}", snip.captures[1])
      end, {})
    ),
    s(
      {
        trig = "(%a)dot",
        wordTrig = false,
        regTrig = true,
        name = "dot",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\dot{%s}", snip.captures[1])
      end, {})
    ),

    s(
      {
        trig = "(%a+)hat",
        wordTrig = false,
        regTrig = true,
        name = "hat",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\hat{%s}", snip.captures[1])
      end, {})
    ),
    s(
      {
        trig = "(%a+)ora",
        wordTrig = false,
        regTrig = true,
        name = "ora",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\overrightarrow{%s}", snip.captures[1])
      end, {})
    ),
    s(
      {
        trig = "(%a+)ola",
        wordTrig = false,
        regTrig = true,
        name = "ola",
        priority = 100,
      },
      f(function(_, snip)
        return string.format("\\overleftarrow{%s}", snip.captures[1])
      end, {})
    ),

    parse_snippet({ trig = "td", name = "to the ... power ^{}" }, "^{$1}$0 "),
    parse_snippet({ trig = "rd", name = "to the ... power ^{()}" }, "^{($1)}$0 "),
    parse_snippet({ trig = "cb", name = "Cube ^3" }, "^3 "),
    parse_snippet({ trig = "sr", name = "Square ^2" }, "^2"),

    parse_snippet({ trig = "EE", name = "exists" }, "\\exists "),
    parse_snippet({ trig = "AA", name = "forall" }, "\\forall "),
    parse_snippet({ trig = "xnn", name = "xn" }, "x_{n}"),
    parse_snippet({ trig = "ynn", name = "yn" }, "y_{n}"),
    parse_snippet({ trig = "xii", name = "xi" }, "x_{i}"),
    parse_snippet({ trig = "yii", name = "yi" }, "y_{i}"),
    parse_snippet({ trig = "xjj", name = "xj" }, "x_{j}"),
    parse_snippet({ trig = "yjj", name = "yj" }, "y_{j}"),
    parse_snippet({ trig = "xp1", name = "x" }, "x_{n+1}"),
    parse_snippet({ trig = "xmm", name = "x" }, "x_{m}"),
    parse_snippet({ trig = "R0+", name = "R0+" }, "\\mathbb{R}_0^+"),

    parse_snippet({ trig = "notin", name = "not in " }, "\\not\\in "),

    parse_snippet({ trig = "cc", name = "subset" }, "\\subset "),

    parse_snippet({ trig = "<->", name = "leftrightarrow", priority = 200 }, "\\leftrightarrow"),
    parse_snippet({ trig = "...", name = "ldots", priority = 100 }, "\\ldots "),
    parse_snippet({ trig = "!>", name = "mapsto" }, "\\mapsto "),
    parse_snippet({ trig = "iff", name = "iff" }, "\\iff"),
    parse_snippet({ trig = "siff", name = "short iff", priority = 100}, "\\Leftrightarrow"),
    parse_snippet({ trig = "ooo", name = "\\infty" }, "\\infty"),
    parse_snippet({ trig = "rij", name = "mrij" }, "(${1:x}_${2:n})_{${3:$2}\\in${4:\\N}}$0"),
    parse_snippet({ trig = "nabl", name = "nabla" }, "\\nabla "),
    parse_snippet({ trig = "<!", name = "normal" }, "\\triangleleft "),
    parse_snippet({ trig = "floor", name = "floor" }, "\\left\\lfloor $1 \\right\\rfloor$0"),
    parse_snippet({ trig = "mcal", name = "mathcal" }, "\\mathcal{$1}$0"),
    parse_snippet({ trig = "//", name = "Fraction" }, "\\frac{$1}{$2}$0"),
    parse_snippet({ trig = "\\\\\\", name = "setminus" }, "\\setminus"),
    parse_snippet({ trig = "->", name = "to", priority = 100 }, "\\to "),
    parse_snippet({ trig = "-->", name = "long to", priority = 200 }, "\\longrightarrow "),

    parse_snippet({ trig = "letw", name = "let omega" }, "Let $\\Omega \\subset \\C$ be open."),
    parse_snippet({ trig = "nnn", name = "bigcap" }, "\\bigcap_{${1:i \\in ${2: I}}} $0"),
    parse_snippet({ trig = "norm", name = "norm" }, "\\|$1\\|$0"),
    parse_snippet({ trig = "<>", name = "hokje" }, "\\diamond "),
    parse_snippet({ trig = ">>", name = ">>" }, "\\gg"),
    parse_snippet({ trig = "<<", name = "<<" }, "\\ll"),

    parse_snippet({ trig = "stt", name = "text subscript" }, "_\\text{$1} $0"),
    parse_snippet({ trig = "tt", name = "text" }, "\\text{$1}$0"),

    parse_snippet({ trig = "xx", name = "cross" }, "\\times "),

    parse_snippet({ trig = "**", name = "cdot", priority = 100 }, "\\cdot "),

    parse_snippet({ trig = ":=", name = "colon equals (lhs defined as rhs)" }, "\\coloneqq "),

    parse_snippet(
      { trig = "cvec", name = "column vector" },
      "\\begin{pmatrix} ${1:x}_${2:1}\\\\ \\vdots\\\\ $1_${2:n} \\end{pmatrix}"
    ),
    parse_snippet({ trig = "ceil", name = "ceil" }, "\\left\\lceil $1 \\right\\rceil $0"),
    parse_snippet({ trig = "OO", name = "emptyset" }, "\\O"),
    parse_snippet({ trig = "RR", name = "R" }, "\\mathbb{R}"),
    parse_snippet({ trig = "QQ", name = "Q" }, "\\mathbb{Q}"),
    parse_snippet({ trig = "ZZ", name = "Z" }, "\\mathbb{Z}"),
    parse_snippet({ trig = "UU", name = "cup" }, "\\cup "),
    parse_snippet({ trig = "NN", name = "n" }, "\\mathbb{N}"),
    parse_snippet({ trig = "||", name = "mid" }, " \\mid "),
    parse_snippet({ trig = "Nn", name = "cap" }, "\\cap "),
    parse_snippet({ trig = "bmat", name = "bmat" }, "\\begin{bmatrix} $1 \\end{bmatrix} $0"),
    parse_snippet({ trig = "uuu", name = "bigcup" }, "\\bigcup_{${1:i \\in ${2: I}}} $0"),
    parse_snippet({ trig = "DD", name = "D" }, "\\mathbb{D}"),
    parse_snippet({ trig = "HH", name = "H" }, "\\mathbb{H}"),
    parse_snippet({ trig = "lll", name = "l" }, "\\ell"),
    parse_snippet(
      { trig = "dint", name = "integral", priority = 300 },
      "\\int_{${1:-\\infty}}^{${2:\\infty}} ${3:${TM_SELECTED_TEXT}} $0"
    ),

    parse_snippet({ trig = "==", name = "equals" }, [[&= $1 \\\\]]),
    parse_snippet({ trig = "!=", name = "not equals" }, "\\neq "),
    parse_snippet({ trig = "compl", name = "complement" }, "^{c}"),
    parse_snippet({ trig = "__", name = "subscript" }, "_{$1}$0"),
    parse_snippet({ trig = "=>", name = "implies" }, "\\implies"),
    parse_snippet({ trig = "simp", name = "short implies" }, "\\Rightarrow"),
    parse_snippet({ trig = "=<", name = "implied by" }, "\\impliedby"),
    parse_snippet({ trig = "<<", name = "<<" }, "\\ll"),

    parse_snippet({ trig = "<=", name = "leq" }, "\\le "),
    parse_snippet({ trig = ">=", name = "geq" }, "\\ge "),
    parse_snippet({ trig = "invs", name = "inverse" }, "^{-1}"),
    parse_snippet({ trig = "~~", name = "~" }, "\\sim "),
    parse_snippet({ trig = "conj", name = "conjugate" }, "\\overline{$1}$0"),
  }
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_iA_no_backslash.lua
================================================
local M = {}

local ls = require("luasnip")

function M.retrieve(is_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe, no_backslash = utils.pipe, utils.no_backslash

  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    wordTrig = false,
    condition = pipe({ is_math, no_backslash }),
  }) --[[@as function]]

  local with_priority = ls.extend_decorator.apply(parse_snippet, {
    priority = 10,
  }) --[[@as function]]

  return {
    parse_snippet({ trig = "sq", name = "\\sqrt{}" }, "\\sqrt{${1:${TM_SELECTED_TEXT}}} $0"),
    parse_snippet({ trig = "case", name = "cases" }, "\\begin{cases}\n\t$1\n\\end{cases}"),

    with_priority({ trig = "hat", name = "hat" }, "\\hat{$1}$0 "),
    with_priority({ trig = "bar", name = "bar" }, "\\overline{$1}$0 "),

    parse_snippet({ trig = "inf", name = "\\infty" }, "\\infty"),
    parse_snippet({ trig = "inn", name = "in " }, "\\in "),
    parse_snippet({ trig = "SI", name = "SI" }, "\\SI{$1}{$2}"),
  }
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_rA_no_backslash.lua
================================================
local ls = require("luasnip")
local s = ls.snippet
local f = ls.function_node

local M = {}

M.decorator = {}

local postfix_trig = function(match)
  return string.format("(%s)", match)
end

local postfix_node = f(function(_, snip)
  return string.format("\\%s ", snip.captures[1])
end, {})

local build_snippet = function(trig, node, match, priority, name)
  return s({
    name = name and name(match) or match,
    trig = trig(match),
    priority = priority,
  }, vim.deepcopy(node))
end

local build_with_priority = function(trig, node, priority, name)
  return function(match)
    return build_snippet(trig, node, match, priority, name)
  end
end

local vargreek_postfix_completions = function()
  local re = "varepsilon|varphi|varrho|vartheta"

  local build = build_with_priority(postfix_trig, postfix_node, 200)
  return vim.tbl_map(build, vim.split(re, "|"))
end

local greek_postfix_completions = function()
  local re =
    "[aA]lpha|[bB]eta|[cC]hi|[dD]elta|[eE]psilon|[gG]amma|[iI]ota|[kK]appa|[lL]ambda|[mM]u|[nN]u|[oO]mega|[pP]hi|[pP]i|[pP]si|[rR]ho|[sS]igma|[tT]au|[tT]heta|[zZ]eta|[eE]ta"

  local build = build_with_priority(postfix_trig, postfix_node, 200)
  return vim.tbl_map(build, vim.split(re, "|"))
end

local postfix_completions = function()
  local re = "sin|cos|tan|csc|sec|cot|ln|log|exp|star|perp|int"

  local build = build_with_priority(postfix_trig, postfix_node)
  return vim.tbl_map(build, vim.split(re, "|"))
end

local snippets = {}

function M.retrieve(is_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe = utils.pipe
  local no_backslash = utils.no_backslash

  M.decorator = {
    wordTrig = true,
    trigEngine = "pattern",
    condition = pipe({ is_math, no_backslash }),
  }

  s = ls.extend_decorator.apply(ls.snippet, M.decorator) --[[@as function]]

  vim.list_extend(snippets, vargreek_postfix_completions())
  vim.list_extend(snippets, greek_postfix_completions())
  vim.list_extend(snippets, postfix_completions())
  vim.list_extend(snippets, { build_snippet(postfix_trig, postfix_node, "q?quad", 200) })

  return snippets
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_wA_no_backslash.lua
================================================
local ls = require("luasnip")

local utils = require("luasnip-latex-snippets.util.utils")
local pipe = utils.pipe
local no_backslash = utils.no_backslash

local M = {}

function M.retrieve(is_math)
  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    condition = pipe({ is_math, no_backslash }),
  }) --[[@as function]]

  local with_priority = ls.extend_decorator.apply(parse_snippet, {
    priority = 10,
  }) --[[@as function]]

  return {
    with_priority({ trig = "arcsin", name = "arcsin" }, "\\arcsin "),
    with_priority({ trig = "arctan", name = "arctan" }, "\\arctan "),
    with_priority({ trig = "arcsec", name = "arcsec" }, "\\arcsec "),
    with_priority({ trig = "asin", name = "asin" }, "\\arcsin"),
    with_priority({ trig = "atan", name = "atan" }, "\\arctan"),
    with_priority({ trig = "asec", name = "asec" }, "\\arcsec"),

    parse_snippet({ trig = "set", name = "set" }, [[ \\{$1\\} $0 ]]),
    parse_snippet({ trig = "fun", name = "function map" }, "f \\colon $1 \\R \\to \\R \\colon $0"),

    parse_snippet(
      { trig = "abs", name = "absolute value \\abs{}" },
      "\\abs{${1:${TM_SELECTED_TEXT}}}$0"
    ),
  }
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_wRA_no_backslash.lua
================================================
local ls = require("luasnip")
local f = ls.function_node

local M = {}

local vec_node = {
  f(function(_, snip)
    return string.format("\\vec{%s} ", snip.captures[1])
  end, {}),
}

M.math_wrA_no_backslash = {
  { "([%a][%a])(%.,)", vec_node },
  { "([%a][%a])(,%.)", vec_node },
  { "([%a])(%.,)", vec_node },
  { "([%a])(,%.)", vec_node },
}

M.decorator = {}

function M.retrieve(is_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe = utils.pipe
  local no_backslash = utils.no_backslash

  M.decorator = {
    wordTrig = true,
    trigEngine = "pattern",
    condition = pipe({ is_math, no_backslash }),
  }

  local s = ls.extend_decorator.apply(ls.snippet, M.decorator) --[[@as function]]

  return vim.tbl_map(function(x)
    local trig, node = unpack(x)
    return s({ trig = trig }, vim.deepcopy(node))
  end, M.math_wrA_no_backslash)
end

return M


================================================
FILE: lua/luasnip-latex-snippets/math_wrA.lua
================================================
local M = {}

local ls = require("luasnip")
local f = ls.function_node
local i = ls.insert_node
local t = ls.text_node

local frac_no_parens = {
  f(function(_, snip)
    return string.format("\\frac{%s}", snip.captures[1])
  end, {}),
  t("{"),
  i(1),
  t("}"),
  i(0),
}

local frac_node = {
  f(function(_, snip)
    local match = snip.trigger
    local stripped = match:sub(1, #match - 1)

    i = #stripped
    local depth = 0
    while i >= 0 do
      if stripped:sub(i, i) == ")" then
        depth = depth + 1
      end
      if stripped:sub(i, i) == "(" then
        depth = depth - 1
      end
      if depth == 0 then
        break
      end
      i = i - 1
    end

    if depth ~= 0 then
      return string.format("%s\\frac{}", stripped)
    else
      return string.format("%s\\frac{%s}", stripped:sub(1, i - 1), stripped:sub(i + 1, #stripped - 1))
    end
  end, {}),
  t("{"),
  i(1),
  t("}"),
  i(0),
}

local subscript_node = {
  f(function(_, snip)
    return string.format("%s_{%s}", snip.captures[1], snip.captures[2])
  end, {}),
  i(0),
}

local frac_no_parens_triggers = {
  "(\\?[%w]+\\?^%w)/",
  "(\\?[%w]+\\?_%w)/",
  "(\\?[%w]+\\?^{%w*})/",
  "(\\?[%w]+\\?_{%w*})/",
  "(\\?%w+)/",
}

function M.retrieve(is_math)
  local utils = require("luasnip-latex-snippets.util.utils")
  local pipe = utils.pipe

  local s = ls.extend_decorator.apply(ls.snippet, {
    wordTrig = false,
    trigEngine = "pattern",
    condition = pipe({ is_math }),
  }) --[[@as function]]

  local snippets = {
    s({
      trig = "([%a])(%d)",
      name = "auto subscript",
    }, vim.deepcopy(subscript_node)),

    s({
      trig = "([%a])_(%d%d)",
      name = "auto subscript 2",
    }, vim.deepcopy(subscript_node)),

    s({
      priority = 1000,
      trig = ".*%)/",
      name = "() frac",
      wordTrig = true,
    }, vim.deepcopy(frac_node)),
  }

  for _, trig in pairs(frac_no_parens_triggers) do
    snippets[#snippets + 1] = s({
      name = "Fraction no ()",
      trig = trig,
    }, vim.deepcopy(frac_no_parens))
  end

  return snippets
end

return M


================================================
FILE: lua/luasnip-latex-snippets/util/ts_utils.lua
================================================
local M = {}

local MATH_NODES = {
    displayed_equation = true,
    inline_formula = true,
    math_environment = true,
}

local TEXT_NODES = {
    text_mode = true,
    label_definition = true,
    label_reference = true,
}

local CODE_BLOCK_NODES = { -- Add this to define code block node types
    fenced_code_block = true,
    indented_code_block = true, -- Optional: include indented code blocks as well if needed
}

function M.in_text(check_parent)
    local node = vim.treesitter.get_node({ ignore_injections = false })
    
    -- Check for code blocks in any filetype
    local block_node = node
    while block_node do
        if CODE_BLOCK_NODES[block_node:type()] then
            return true -- If in a code block, always consider it text
        end
        block_node = block_node:parent()
    end

    while node do
        if node:type() == "text_mode" then
            if check_parent then
                -- For \text{}
                local parent = node:parent()
                if parent and MATH_NODES[parent:type()] then
                    return false
                end
            end
            return true
        elseif MATH_NODES[node:type()] then
            return false
        end
        node = node:parent()
    end
    return true
end

function M.in_mathzone()
    local node = vim.treesitter.get_node({ ignore_injections = false })
    local current_filetype = vim.bo.filetype

    -- Check if we are in a markdown file and inside a code block
    if current_filetype == "markdown" or current_filetype == "quarto" then
        local block_node = node
        while block_node do
            if CODE_BLOCK_NODES[block_node:type()] then
                return false -- If in a code block in markdown, never consider it math zone
            end
            block_node = block_node:parent()
        end
    end

    while node do
        if TEXT_NODES[node:type()] then
            return false
        elseif MATH_NODES[node:type()] then
            return true
        end
        node = node:parent()
    end
    return false
end

return M


================================================
FILE: lua/luasnip-latex-snippets/util/utils.lua
================================================
local M = {}

-- local s = ls.snippet
-- local sn = ls.snippet_node
-- local isn = ls.indent_snippet_node
-- local t = ls.text_node
-- local i = ls.insert_node
-- local f = ls.function_node
-- local c = ls.choice_node
-- local d = ls.dynamic_node
-- local events = require("luasnip.util.events")
-- local r = require("luasnip.extras").rep
-- local fmt = require("luasnip.extras.fmt").fmt
-- local fmta = require("luasnip.extras.fmt").fmta

M.pipe = function(fns)
  return function(...)
    for _, fn in ipairs(fns) do
      if not fn(...) then
        return false
      end
    end

    return true
  end
end

M.no_backslash = function(line_to_cursor, matched_trigger)
  return not line_to_cursor:find("\\%a+$", -#line_to_cursor)
end

local ts_utils = require("luasnip-latex-snippets.util.ts_utils")
M.is_math = function(treesitter)
  if treesitter then
    return ts_utils.in_mathzone()
  end

  return vim.fn["vimtex#syntax#in_mathzone"]() == 1
end

M.not_math = function(treesitter)
  if treesitter then
    return ts_utils.in_text(true)
  end

  return not M.is_math()
end

M.comment = function()
  return vim.fn["vimtex#syntax#in_comment"]() == 1
end

M.env = function(name)
  local x, y = unpack(vim.fn["vimtex#env#is_inside"](name))
  return x ~= "0" and y ~= "0"
end

M.with_priority = function(snip, priority)
  snip.priority = priority
  return snip
end

M.with_opts = function(fn, opts)
  return function()
    return fn(opts)
  end
end

return M


================================================
FILE: lua/luasnip-latex-snippets/wA.lua
================================================
local ls = require("luasnip")
local utils = require("luasnip-latex-snippets.util.utils")
local pipe = utils.pipe

local M = {}

function M.retrieve(not_math)
  local parse_snippet = ls.extend_decorator.apply(ls.parser.parse_snippet, {
    condition = pipe({ not_math }),
  }) --[[@as function]]

  return {
    parse_snippet({ trig = "mk", name = "Math" }, "\\( ${1:${TM_SELECTED_TEXT}} \\)$0"),
    parse_snippet({ trig = "dm", name = "Block Math" }, "\\[\n\t${1:${TM_SELECTED_TEXT}}\n\\] $0"),
  }
end

return M