Skylighting.Regex

A representation of a regular expression.

Compile a UTF-8 encoded ByteString as a Regex. If the first parameter is True, then the Regex will be case sensitive.

Match a Regex against a (presumed UTF-8 encoded) ByteString, returning the matched text and a map of (offset, size) pairs for captures. Note that all matches are from the beginning of the string (a ^ anchor is implicit). Note also that to avoid pathological performance in certain cases, the matcher is limited to considering 2000 possible matches at a time; when that threshold is reached, it discards smaller matches. Hence certain regexes may incorrectly fail to match: e.g. a*a{3000}$ on a string of 3000 as.