runtime(ssa): improve syntax file performance (#14654)
fixes: #14653
Signed-off-by: ObserverOfTime <chronobserver@disroot.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/ssa.vim b/runtime/syntax/ssa.vim
index a5dbf37..3cfae81 100644
--- a/runtime/syntax/ssa.vim
+++ b/runtime/syntax/ssa.vim
@@ -2,7 +2,7 @@
" Language: SubStation Alpha
" Maintainer: ObserverOfTime <chronobserver@disroot.org>
" Filenames: *.ass,*.ssa
-" Last Change: 2022 Oct 10
+" Last Change: 2024 Apr 28
if exists('b:current_syntax')
finish
@@ -20,16 +20,20 @@
syn match ssaHeader /^[^;!:]\+:/ skipwhite nextgroup=ssaField
" Fields
-syn match ssaField /[^,]*/ contained skipwhite nextgroup=ssaDelimiter
+syn match ssaField /[^,]*\(,\|$\)/ contained skipwhite contains=ssaDelimiter,ssaTime nextgroup=ssaField
" Time
-syn match ssaTime /\d:\d\d:\d\d\.\d\d/ contained skipwhite nextgroup=ssaDelimiter
+syn match ssaTime /\d:\d\d:\d\d\.\d\d/ contained
" Delimiter
-syn match ssaDelimiter /,/ contained skipwhite nextgroup=ssaField,ssaTime,ssaText
+syn match ssaDelimiter /,/ contained
+
+" Dialogue
+syn match ssaDialogue /^Dialogue:/ transparent skipwhite nextgroup=ssaDialogueFields
+syn match ssaDialogueFields /\([^,]*,\)\{9\}/ contained transparent skipwhite contains=ssaField,ssaDelimiter nextgroup=ssaText
" Text
-syn match ssaText /\(^Dialogue:\(.*,\)\{9}\)\@<=.*$/ contained contains=@ssaTags,@Spell
+syn match ssaText /.*$/ contained contains=@ssaTags,@Spell
syn cluster ssaTags contains=ssaOverrideTag,ssaEscapeChar,ssaTextComment,ssaItalics,ssaBold,ssaUnderline,ssaStrikeout
" Override tags
@@ -60,4 +64,4 @@
hi ssaStrikeout cterm=strikethrough gui=strikethrough
hi ssaUnderline cterm=underline gui=underline
-let b:current_syntax = 'srt'
+let b:current_syntax = 'ssa'