regexp/syntax
Package syntax
Overview
Package syntax parses regular expressions into parse trees and compiles parse trees into programs. Most clients of regular expressions will use the facilities of package regexp (such as Compile and Match) instead of this package.
Syntax
The regular expression syntax understood by this package when parsing with the Perl flag is as follows. Parts of the syntax can be disabled by passing alternate flags to Parse.
Single characters:
. any character, possibly including newline (flag s=true) [xyz] character class [^xyz] negated character class \d Perl character class \D negated Perl character class [[:alpha
