Function emptyString

index/regexp.go:411–417

emptyString returns the regexpInfo describing a regexp that matches only the empty string.

()

// emptyString returns the regexpInfo describing a regexp that
// matches only the empty string.
func emptyString() regexpInfo {
	return regexpInfo{
		canEmpty: true,
		exact:    []string{""},
		match:    allQuery,
	}
}

// analyze returns the regexpInfo for the regexp re.
func analyze(re *syntax.Regexp) (ret regexpInfo) {