Commit: runtime(doc): 'ignorecase' affects character classes in the old engine

[Christian Brabandt]

runtime(doc): 'ignorecase' affects character classes in the old engine

Commit: https://github.com/vim/vim/commit/427fa3e1e4b44eb780f3ddae51b49a514530ee64
Author: Christian Brabandt <c...@256bit.org>
Date: Wed Jan 28 21:58:28 2026 +0000

runtime(doc): 'ignorecase' affects character classes in the old engine

fixes: https://github.com/vim/vim/issues/19230

Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 6cafb688a..8e3368518 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -1,4 +1,4 @@
-*pattern.txt* For Vim version 9.1. Last change: 2025 Nov 09
+*pattern.txt* For Vim version 9.1. Last change: 2026 Jan 28


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1169,13 +1169,15 @@ x A single character, with no special meaning, matches itself
*[:graph:]* [:graph:] isgraph ASCII printable characters excluding
space
*[:lower:]* [:lower:] (1) lowercase letters (all letters when
- 'ignorecase' is used)
+ 'ignorecase' is used and the old
+ engine is in use |two-engines|)
*[:print:]* [:print:] (2) printable characters including space
*[:punct:]* [:punct:] ispunct ASCII punctuation characters
*[:space:]* [:space:] whitespace characters: space, tab, CR,
NL, vertical tab, form feed
*[:upper:]* [:upper:] (3) uppercase letters (all letters when
- 'ignorecase' is used)
+ 'ignorecase' is used and the old
+ engine is in use |two-engines|)
*[:xdigit:]* [:xdigit:] hexadecimal digits: 0-9, a-f, A-F
*[:return:]* [:return:] the <CR> character
*[:tab:]* [:tab:] the <Tab> character