Bugfix for regexes that have / in jsRegexpCharClass

Author: amadeus

syntax/javascript.vim

@@ -61,7 +61,7 @@ syntax match   jsFloat            /\c\<\%(\d\+\.\d\+\|\d\+\.\|\.\d\+\)\%(e[+-]\=
 " Regular Expressions
 syntax match   jsSpecial            contained "\v\\%(x\x\x|u%(\x{4}|\{\x{4,5}})|c\u|.)"
 syntax region  jsTemplateExpression contained matchgroup=jsTemplateBraces start=+${+ end=+}+ contains=@jsExpression keepend
-syntax region  jsRegexpCharClass    contained start=+\[+ skip=+\\.+ end=+\]+ contains=jsSpecial
+syntax region  jsRegexpCharClass    contained start=+\[+ skip=+\\.+ end=+\]+ contains=jsSpecial extend
 syntax match   jsRegexpBoundary     contained "\v\c[$^]|\\b"
 syntax match   jsRegexpBackRef      contained "\v\\[1-9]\d*"
 syntax match   jsRegexpQuantifier   contained "\v[^\\]%([?*+]|\{\d+%(,\d*)?})\??"lc=1