Commit: runtime(pandoc): update YAML metadata block parsing in compiler runtime

[Christian Brabandt]

runtime(pandoc): update YAML metadata block parsing in compiler runtime

Commit: https://github.com/vim/vim/commit/1aa68dffbf2a80d143ee0e659289dbbc430606af
Author: Alexander Abrosimov <alexander....@gmail.com>
Date: Thu May 15 20:06:29 2025 +0200

runtime(pandoc): update YAML metadata block parsing in compiler runtime

Previously the incorrect regexp forced title to be a single letter
because of using '+' instead of the '\+' regexp modifier.

closes: #17321

Signed-off-by: Alexander Abrosimov <alexander....@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/compiler/pandoc.vim b/runtime/compiler/pandoc.vim
index 5d90a518c..40d2d0263 100644
--- a/runtime/compiler/pandoc.vim
+++ b/runtime/compiler/pandoc.vim
@@ -2,6 +2,7 @@
" Compiler: Pandoc
" Maintainer: Konfekt
" Last Change: 2024 Nov 19
+" 2025 May 15 Update the title regex for CompilerSet #17321
"
" Expects output file extension, say `:make html` or `:make pdf`.
" Passes additional arguments to pandoc, say `:make html --self-contained`.
@@ -51,7 +52,7 @@ endfunction

execute 'CompilerSet makeprg=pandoc'..escape(
\ ' --standalone'..
- \ (s:PandocFiletype(&filetype) ==# 'markdown' && (getline(1) =~# '^%\s\+\S\+' || (search('^title:\s+\S+', 'cnw') > 0)) ?
+ \ (s:PandocFiletype(&filetype) ==# 'markdown' && (getline(1) =~# '^%\s\+\S\+' || (search('^title:\s\+\S\+', 'cnw') > 0)) ?
\ '' : ' --metadata title=%:t:r:S')..
\ ' '..s:PandocLang()..
\ ' --from='..s:PandocFiletype(&filetype)..