Fixed latex highlighter escaping math mode

rc/filetype/latex.kak

@@ -42,6 +42,11 @@ add-highlighter shared/latex/content default-region group
 add-highlighter shared/latex/cs region '(?<!\\)(?:\\\\)*\K\\[@\w]' '/\n|(?<![@:\\{}\[\]*])(?![@:\\{}\[\]*])\b|(?<!\\)(?:\\\\)*\K\}\K' group
 add-highlighter shared/latex/comment region '(?<!\\)(?:\\\\)*\K%' '\n' fill comment
 
+# Math mode between dollar signs/pairs
+add-highlighter shared/latex/dollar-math region -match-capture '(?<!\\)(?:\\\\)*\K(\$\$?)' '(?<!\\)(?:\\\\)*(\$\$?)' fill meta
+add-highlighter shared/latex/paren-math region '(?<!\\)(?:\\\\)*\K\\\(' '(?<!\\)(?:\\\\)*\\\)' fill meta
+add-highlighter shared/latex/bracket-math region '(?<!\\)(?:\\\\)*\K\\\[' '(?<!\\)(?:\\\\)*\\\]' fill meta
+
 # Document and LaTeX2e control sequence
 add-highlighter shared/latex/cs/ regex '(?:\\[a-zA-Z@]+)' 0:keyword
 ## Options passed to LaTeX2e control sequences, between brackets
@@ -73,9 +78,6 @@ add-highlighter shared/latex/content/ regex '(?<!\\)(?:\\\\)*\K#+[1-9]' 0:string
 ## group containing words and numbers (list separated by ; , / or spaces)
 add-highlighter shared/latex/content/ regex '(?<!\\)(?:\\\\)*\K\{([\s/;,.\w\d]+)\}' 1:string
 
-# Math mode between dollar signs/pairs
-add-highlighter shared/latex/content/ regex '((?<!\\)(?:\\\\)*\K\$(\\\$|[^$])+\$)|((?<!\\)(?:\\\\)*\K\$\$(\\\$|[^$])+\$\$)|((?<!\\)(?:\\\\)*\K\\\[.*?\\\])|(\\\(.*?\\\))' 0:meta
-
 # Indent
 # ------