Update highlight.janet (allow ! in symbols).
~{:ws (set " \t\r\f\n\0")
:readermac (set "';~,")
- :symchars (+ (range "09" "AZ" "az" "\x80\xFF") (set "$%&*+-./:<=>?@^_|"))
+ :symchars (+ (range "09" "AZ" "az" "\x80\xFF") (set "!$%&*+-./:<?=>@^_|"))
:token (some :symchars)
:hex (range "09" "af" "AF")
:escape (* "\\" (+ (set "ntrzf0\"\\e")
