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vim-patch:6fea0a5: runtime(help): Add Vim lang annotation support for codeblocks

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closes: vim/vim#16215

6fea0a5480

Co-authored-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
This commit is contained in:
brianhuster
2025-05-31 17:13:46 +07:00
parent 5ebaf83256
commit 11ae879ebd
2 changed files with 21 additions and 2 deletions
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8
runtime/doc/helphelp.txt
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@@ -377,7 +377,13 @@ also implicitly stops the block of ex-commands before it. E.g. >
echo "Example"
endfunction
<
It's possible to add Vim syntax highlighting support to code examples. This
can be done by adding "vim" after the greater than (>) character (">vim").
E.g: >vim
function Example_Func()
echo "Example"
endfunction
<
The following are highlighted differently in a Vim help file:
- a special key name expressed either in <> notation as in <PageDown>, or
as a Ctrl character as in CTRL-X

15
runtime/syntax/help.vim
View File

@@ -1,7 +1,7 @@
" Vim syntax file
" Language: Vim help file
" Maintainer: The Vim Project <https://github.com/vim/vim>
" Last Change: 2024 Oct 16
" Last Change: 2024 Dec 15
" Former Maintainer: Bram Moolenaar <Bram@vim.org>
" Quit when a (custom) syntax file was already loaded
@@ -15,11 +15,24 @@ set cpo&vim
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
" Nvim: support language annotation in codeblocks
if has("conceal")
syn region helpExample matchgroup=helpIgnore start=" >[a-z0-9]*$" start="^>[a-z0-9]*$" 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
else
syn region helpExample matchgroup=helpIgnore start=" >[a-z0-9]*$" start="^>[a-z0-9]*$" end="^[^ \t]"me=e-1 end="^<"
syn region helpExampleVimScript matchgroup=helpIgnore
\ start=/^>vim$/ start=/ >vim$/
\ end=/^[^ \t]/me=e-1 end=/^</
\ contains=@VimScript keepend
endif
syn match helpHyperTextJump "\\\@<!|[#-)!+-~]\+|" contains=helpBar
syn match helpHyperTextEntry "\*[#-)!+-~]\+\*\s"he=e-1 contains=helpStar