Add a cmake.kak file for highlighting cmake files

rc/extra/cmake.kak

@@ -0,0 +1,22 @@
+hook global BufCreate .+\.cmake|.*/CMakeLists.txt %{
+    set-option buffer filetype cmake
+}
+
+add-highlighter shared/ regions -match-capture -default code cmake \
+   comment '#' '$' '' \
+   argument '\w+\h*\(\K' '(?=\))' '\(' \
+
+add-highlighter shared/cmake/argument regions -match-capture -default args argument \
+   quoted '"' '(?<!\\)(\\\\)*"' '' \
+   quoted '\[(=*)\[' '\](=*)\]' ''
+
+add-highlighter shared/cmake/comment fill comment
+add-highlighter shared/cmake/code regex '\w+\h*(?=\()' 0:meta
+
+add-highlighter shared/cmake/argument/argument/args regex '\$\{\w+\}' 0:variable
+add-highlighter shared/cmake/argument/argument/quoted fill string
+add-highlighter shared/cmake/argument/argument/quoted regex '\$\{\w+\}' 0:variable
+add-highlighter shared/cmake/argument/argument/quoted regex '\w+\h*(?=\()' 0:function
+
+hook -group cmake-highlight global WinSetOption filetype=cmake %{ add-highlighter window ref cmake }
+hook -group cmake-highlight global WinSetOption filetype=(?!cmake).* %{ remove-highlighter window/cmake }