Update runtime files

runtime/syntax/lyrics.vim

@@ -0,0 +1,43 @@
+" Vim syntax file
+" Language:     LyRiCs
+" Maintainer:   ObserverOfTime <chronobserver@disroot.org>
+" Filenames:    *.lrc
+" Last Change:  2022 Sep 18
+
+if exists('b:current_syntax')
+    finish
+endif
+
+let s:cpo_save = &cpoptions
+set cpoptions&vim
+
+syn case ignore
+
+" Errors
+syn match lrcError /^.\+$/
+
+" ID tags
+syn match lrcTag /^\s*\[\a\+:.\+\]\s*$/ contains=lrcTagName,lrcTagValue
+syn match lrcTagName contained nextgroup=lrcTagValue
+            \ /\[\zs\(al\|ar\|au\|by\|encoding\|la\|id\|length\|offset\|re\|ti\|ve\)\ze:/
+syn match lrcTagValue /:\zs.\+\ze\]/ contained
+
+" Lyrics
+syn match lrcLyricTime /^\s*\[\d\d:\d\d\.\d\d\]/
+            \ contains=lrcNumber nextgroup=lrcLyricLine
+syn match lrcLyricLine /.*$/ contained contains=lrcWordTime,@Spell
+syn match lrcWordTime /<\d\d:\d\d\.\d\d>/ contained contains=lrcNumber,@NoSpell
+syn match lrcNumber /[+-]\=\d\+/ contained
+
+hi def link lrcLyricTime Label
+hi def link lrcNumber Number
+hi def link lrcTag PreProc
+hi def link lrcTagName Identifier
+hi def link lrcTagValue String
+hi def link lrcWordTime Special
+hi def link lrcError Error
+
+let b:current_syntax = 'lyrics'
+
+let &cpoptions = s:cpo_save
+unlet s:cpo_save