Package syntax parses regular expressions into parse trees and compiles parse trees into programs.

Compile parses a regular expression and returns, if successful, a Regexp object that can be used to match against text.

CompilePOSIX is like Compile but restricts the regular expression to POSIX ERE (egrep) syntax and changes the match semantics to leftmost-longest.

Match reports whether the byte slice b contains any match of the regular expression pattern.

MatchReader reports whether the text returned by the RuneReader contains any match of the regular expression pattern.

MatchString reports whether the string s contains any match of the regular expression pattern.

MustCompile is like Compile but panics if the expression cannot be parsed.

MustCompilePOSIX is like CompilePOSIX but panics if the expression cannot be parsed.

QuoteMeta returns a string that escapes all regular expression metacharacters inside the argument text; the returned string is a regular expression matching the literal text.

Regexp is the representation of a compiled regular expression.