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runtime(help): Add better support for language annotation highlighting

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closes: #16238

Co-authored-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: h_east <h.east.727@gmail.com>
Signed-off-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Shougo Matsushita
2024-12-25 10:55:48 +01:00
committed by Christian Brabandt
parent 9360de9027
commit 5ddcecf05f
4 changed files with 59 additions and 26 deletions
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38
runtime/syntax/help.vim
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@@ -1,7 +1,7 @@
" Vim syntax file
" Language: Vim help file
" Maintainer: The Vim Project <https://github.com/vim/vim>
" Last Change: 2024 Dec 15
" Last Change: 2024 Dec 25
" Former Maintainer: Bram Moolenaar <Bram@vim.org>
" Quit when a (custom) syntax file was already loaded
@@ -12,26 +12,36 @@ endif
let s:cpo_save = &cpo
set cpo&vim
if !exists('g:help_example_languages')
let g:help_example_languages = #{ vim: 'vim' }
endif
syn match helpHeadline "^[A-Z.][-A-Z0-9 .,()_']*?\=\ze\(\s\+\*\|$\)"
syn match helpSectionDelim "^===.*===$"
syn match helpSectionDelim "^---.*--$"
unlet! b:current_syntax
" sil! to prevent E403
silent! syntax include @VimScript syntax/vim.vim
if has("conceal")
syn region helpExample matchgroup=helpIgnore start=" >$" start="^>$" end="^[^ \t]"me=e-1 end="^<" concealends
syn region helpExampleVimScript matchgroup=helpIgnore
\ start=/^>vim$/ start=/ >vim$/
\ end=/^[^ \t]/me=e-1 end=/^</ concealends
\ contains=@VimScript keepend
syn region helpExample matchgroup=helpIgnore
\ start="\%(^\| \)>[a-z0-9]*$" end="^[^ \t]"me=e-1 end="^<" concealends
else
syn region helpExample matchgroup=helpIgnore start=" >$" start="^>$" end="^[^ \t]"me=e-1 end="^<"
syn region helpExampleVimScript matchgroup=helpIgnore
\ start=/^>vim$/ start=/ >vim$/
\ end=/^[^ \t]/me=e-1 end=/^</
\ contains=@VimScript keepend
syn region helpExample matchgroup=helpIgnore
\ start="\%(^\| \)>[a-z0-9]*$" end="^[^ \t]"me=e-1 end="^<"
endif
for [s:lang, s:syntax] in g:help_example_languages->items()
unlet! b:current_syntax
" silent! to prevent E403
execute 'silent! syn include' $'@helpExampleHighlight_{s:lang}'
\ $'syntax/{s:syntax}.vim'
execute $'syn region helpExampleHighlight_{s:lang} matchgroup=helpIgnore'
\ $'start=/\%(^\| \)>{s:lang}$/'
\ 'end=/^[^ \t]/me=e-1 end=/^</'
\ (has("conceal") ? 'concealends' : '')
\ $'contains=@helpExampleHighlight_{s:lang} keepend'
endfor
unlet! s:lang s:syntax
if has("ebcdic")
syn match helpHyperTextJump "\\\@<!|[^"*|]\+|" contains=helpBar
syn match helpHyperTextEntry "\*[^"*|]\+\*\s"he=e-1 contains=helpStar