neovim/runtime/lua/vim/_meta/re.lua
Lewis Russell 9beb40a4db feat(docs): replace lua2dox.lua
Problem:

The documentation flow (`gen_vimdoc.py`) has several issues:
- it's not very versatile
- depends on doxygen
- doesn't work well with Lua code as it requires an awkward filter script to convert it into pseudo-C.
- The intermediate XML files and filters makes it too much like a rube goldberg machine.

Solution:

Re-implement the flow using Lua, LPEG and treesitter.

- `gen_vimdoc.py` is now replaced with `gen_vimdoc.lua` and replicates a portion of the logic.
- `lua2dox.lua` is gone!
- No more XML files.
- Doxygen is now longer used and instead we now use:
  - LPEG for comment parsing (see `scripts/luacats_grammar.lua` and `scripts/cdoc_grammar.lua`).
  - LPEG for C parsing (see `scripts/cdoc_parser.lua`)
  - Lua patterns for Lua parsing (see `scripts/luacats_parser.lua`).
  - Treesitter for Markdown parsing (see `scripts/text_utils.lua`).
- The generated `runtime/doc/*.mpack` files have been removed.
   - `scripts/gen_eval_files.lua` now instead uses `scripts/cdoc_parser.lua` directly.
- Text wrapping is implemented in `scripts/text_utils.lua` and appears to produce more consistent results (the main contributer to the diff of this change).
2024-02-27 14:41:17 +00:00

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Lua

--- @meta
error('Cannot require a meta file')
-- Documentations and Lua types for vim.re (vendored re.lua, lpeg-1.1.0)
-- https://www.inf.puc-rio.br/~roberto/lpeg/re.html
--
-- Copyright © 2007-2023 Lua.org, PUC-Rio.
-- See 'lpeg.html' for license
--- @brief
--- The `vim.re` module provides a conventional regex-like syntax for pattern usage
--- within LPeg |vim.lpeg|.
---
--- See https://www.inf.puc-rio.br/~roberto/lpeg/re.html for the original
--- documentation including regex syntax and more concrete examples.
--- Compiles the given {string} and returns an equivalent LPeg pattern. The given string may define
--- either an expression or a grammar. The optional {defs} table provides extra Lua values to be used
--- by the pattern.
--- @param string string
--- @param defs? table
--- @return vim.lpeg.Pattern
function vim.re.compile(string, defs) end
--- Searches the given {pattern} in the given {subject}. If it finds a match, returns the index
--- where this occurrence starts and the index where it ends. Otherwise, returns nil.
---
--- An optional numeric argument {init} makes the search starts at that position in the subject
--- string. As usual in Lua libraries, a negative value counts from the end.
--- @param subject string
--- @param pattern vim.lpeg.Pattern|string
--- @param init? integer
--- @return integer|nil the index where the occurrence starts, nil if no match
--- @return integer|nil the index where the occurrence ends, nil if no match
function vim.re.find(subject, pattern, init) end
--- Does a global substitution, replacing all occurrences of {pattern} in the given {subject} by
--- {replacement}.
--- @param subject string
--- @param pattern vim.lpeg.Pattern|string
--- @param replacement string
--- @return string
function vim.re.gsub(subject, pattern, replacement) end
--- Matches the given {pattern} against the given {subject}, returning all captures.
--- @param subject string
--- @param pattern vim.lpeg.Pattern|string
--- @param init? integer
--- @return integer|vim.lpeg.Capture|nil
--- @see vim.lpeg.match()
function vim.re.match(subject, pattern, init) end
--- Updates the pre-defined character classes to the current locale.
function vim.re.updatelocale() end