-- a highlight lang definition for javascript regexes, by Jess Austin

Description = "Javascript Regex"

Keywords = {
   { -- backslash literals
     Id = 1,
     Regex = [=[\\.]]=]
   },
   { -- character classes
     Id = 2,
     Regex = [[ (\:(alnum|alpha|blank|cntrl|graph|print|punct|xdigit|unicode|word|space|digit|lower|upper)\:) ]], Group=1
   }
}

Strings = { -- character sets
  DelimiterPairs = { { Open = "\\[", Close = "\\]" } },
  Escape = [=[\\u\{[[:xdigit:]]+\}|\\u[[:xdigit:]]{4}|\\x[[:xdigit:]]{2}|\\c[A-Z]|\\[[bBdDsSwWtrnvf0]]=],
}

Operators = [[\.|\+|\*|\^|\$|\||\?:|\?=|\?!|\?|\(|\)]]
Digits = [[\{\d+,?\d*\}]] -- integer quantifierso