Commit: runtime(rst): Add support for rst_minlines

[Christian Brabandt]

runtime(rst): Add support for rst_minlines

Commit: https://github.com/vim/vim/commit/310082f3cfab92a28a635b0dc2a972c7f1fa5b92
Author: Dragan Simic <dsi...@manjaro.org>
Date: Mon Oct 13 18:25:57 2025 +0000

runtime(rst): Add support for rst_minlines

Following the approach used in other syntax definitions, add support for
defining the "syntax sync minlines=..." values for rst files in the
users' ~/.vimrc files, to allow the users to adjust that value in case
syntax highlighting stops working for some of the files they edit.

related: #18566

Signed-off-by: Dragan Simic <dsi...@manjaro.org>
Signed-off-by: Marshall Ward <marsha...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 21e0701b7..3651f1b09 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 9.1. Last change: 2025 Oct 12
+*syntax.txt* For Vim version 9.1. Last change: 2025 Oct 13


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -3382,6 +3382,9 @@ To enable folding of sections: >

Note that folding can cause performance issues on some platforms.

+The minimum line syntax sync is set to 50. To modify this number: >
+ let rst_minlines = 100
+

REXX *rexx.vim* *ft-rexx-syntax*

diff --git a/runtime/syntax/rst.vim b/runtime/syntax/rst.vim
index c43bda589..34e43932b 100644
--- a/runtime/syntax/rst.vim
+++ b/runtime/syntax/rst.vim
@@ -246,11 +246,11 @@ for s:filetype in keys(g:rst_syntax_code_list)
unlet! prior_isk
endfor

+
" Enable top level spell checking
syntax spell toplevel

-" TODO: Use better syncing.
-syn sync minlines=50 linebreaks=2
+exe "syn sync minlines=" . get(g:, 'rst_minlines', 50) . " linebreaks=2"

hi def link rstTodo Todo
hi def link rstComment Comment