neovim/runtime/syntax/synload.vim
Gregory Anders 9afa0d25a6 fix(highlight): remove syncolor.vim
Remove syncolor.vim in favor of defining the default highlight groups
directly in `init_highlight`. This approach provides a number of
advantages:

1. The highlights are always defined, regardless of whether or not the
   syntax regex engine is enabled.
2. Redundant sourcing of syntax files is eliminated (syncolor.vim was
   often sourced multiple times based on how the user's colorscheme file
   was written).
3. The syntax highlighting regex engine and the highlight groups
   themselves are more fully decoupled.
4. Removal of the confusing `:syntax on` / `:syntax enable` dichotomy
   (they now both do the same thing).

This approach also correctly solves a number of bugs related to
highlighting (#15176, #12573, #15205).
2021-07-27 14:14:30 -06:00

78 lines
1.9 KiB
VimL

" Vim syntax support file
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last Change: 2020 Apr 13
" This file sets up for syntax highlighting.
" It is loaded from "syntax.vim" and "manual.vim".
" 1. Set the default highlight groups.
" 2. Install Syntax autocommands for all the available syntax files.
if !has("syntax")
finish
endif
" let others know that syntax has been switched on
let syntax_on = 1
" Line continuation is used here, remove 'C' from 'cpoptions'
let s:cpo_save = &cpo
set cpo&vim
" First remove all old syntax autocommands.
au! Syntax
au Syntax * call s:SynSet()
fun! s:SynSet()
" clear syntax for :set syntax=OFF and any syntax name that doesn't exist
syn clear
if exists("b:current_syntax")
unlet b:current_syntax
endif
let s = expand("<amatch>")
if s == "ON"
" :set syntax=ON
if &filetype == ""
echohl ErrorMsg
echo "filetype unknown"
echohl None
endif
let s = &filetype
elseif s == "OFF"
let s = ""
endif
if s != ""
" Load the syntax file(s). When there are several, separated by dots,
" load each in sequence. Skip empty entries.
for name in split(s, '\.')
if !empty(name)
exe "runtime! syntax/" . name . ".vim syntax/" . name . "/*.vim"
exe "runtime! syntax/" . name . ".lua syntax/" . name . "/*.lua"
endif
endfor
endif
endfun
" Handle adding doxygen to other languages (C, C++, C#, IDL, java, php, DataScript)
au Syntax c,cpp,cs,idl,java,php,datascript
\ if (exists('b:load_doxygen_syntax') && b:load_doxygen_syntax)
\ || (exists('g:load_doxygen_syntax') && g:load_doxygen_syntax)
\ | runtime! syntax/doxygen.vim
\ | endif
" Source the user-specified syntax highlighting file
if exists("mysyntaxfile")
let s:fname = expand(mysyntaxfile)
if filereadable(s:fname)
execute "source " . fnameescape(s:fname)
endif
endif
" Restore 'cpoptions'
let &cpo = s:cpo_save
unlet s:cpo_save