mirror of
https://github.com/neovim/neovim.git
synced 2025-09-05 19:08:15 +00:00
f9080b24c4
When trying to load a language parser, escape the value of
the language.
With language injection, the language might be picked up from the
buffer. If this value is erroneous it can cause `nvim_get_runtime_file`
to hard error.
E.g., the markdown expression `~~~{` will extract '{' as a language and
then try to get the parser using `parser/{*` as the pattern.
50 lines
1.2 KiB
Lua
50 lines
1.2 KiB
Lua
local a = vim.api
|
|
|
|
local M = {}
|
|
|
|
--- Asserts that the provided language is installed, and optionally provide a path for the parser
|
|
---
|
|
--- Parsers are searched in the `parser` runtime directory.
|
|
---
|
|
---@param lang The language the parser should parse
|
|
---@param path Optional path the parser is located at
|
|
---@param silent Don't throw an error if language not found
|
|
function M.require_language(lang, path, silent)
|
|
if vim._ts_has_language(lang) then
|
|
return true
|
|
end
|
|
if path == nil then
|
|
local fname = 'parser/' .. vim.fn.fnameescape(lang) .. '.*'
|
|
local paths = a.nvim_get_runtime_file(fname, false)
|
|
if #paths == 0 then
|
|
if silent then
|
|
return false
|
|
end
|
|
|
|
-- TODO(bfredl): help tag?
|
|
error("no parser for '"..lang.."' language, see :help treesitter-parsers")
|
|
end
|
|
path = paths[1]
|
|
end
|
|
|
|
if silent then
|
|
return pcall(function() vim._ts_add_language(path, lang) end)
|
|
else
|
|
vim._ts_add_language(path, lang)
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
--- Inspects the provided language.
|
|
---
|
|
--- Inspecting provides some useful information on the language like node names, ...
|
|
---
|
|
---@param lang The language.
|
|
function M.inspect_language(lang)
|
|
M.require_language(lang)
|
|
return vim._ts_inspect_language(lang)
|
|
end
|
|
|
|
return M
|