runtime(indent): allow matching negative numbers for gnu indent config file
Some gnu indent options take negative numbers (e.g. --indent-label).
Add matching for an optional single '-' before the number.
closes: #15754
Signed-off-by: John M Devin <john.m.devin@gmail.com>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/indent.vim b/runtime/syntax/indent.vim
index b2a1a0c..921a0a8 100644
--- a/runtime/syntax/indent.vim
+++ b/runtime/syntax/indent.vim
@@ -2,7 +2,7 @@
" Language: indent(1) configuration file
" Maintainer: Doug Kearns <dougkearns@gmail.com>
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
-" Last Change: 2021 Nov 17
+" Last Change: 2024 Sep 29
" indent_is_bsd: If exists, will change somewhat to match BSD implementation
"
" TODO: is the deny-all (a la lilo.vim nice or no?)...
@@ -34,7 +34,7 @@
syn match indentOptions '-\%(bli\|c\%([bl]i\|[dip]\)\=\|di\=\|ip\=\|lc\=\|pp\=i\|sbi\|ts\|-\%(brace-indent\|comment-indentation\|case-brace-indentation\|declaration-comment-column\|continuation-indentation\|case-indentation\|else-endif-column\|line-comments-indentation\|declaration-indentation\|indent-level\|parameter-indentation\|line-length\|comment-line-length\|paren-indentation\|preprocessor-indentation\|struct-brace-indentation\|tab-size\)\)'
\ nextgroup=indentNumber skipwhite skipempty
-syn match indentNumber display contained '\d\+\>'
+syn match indentNumber display contained '-\=\d\+\>'
syn match indentOptions '-T'
\ nextgroup=indentIdent skipwhite skipempty