Method IsMatch

parse/parser/state.go:338–345

IsMatch looks for rule at given scope in list of matches, if found returns match state info

(pr *Rule, scope lexer.Reg)

// IsMatch looks for rule at given scope in list of matches, if found
// returns match state info
func (ps *State) IsMatch(pr *Rule, scope lexer.Reg) (*MatchState, bool) {
	rs := &ps.Matches[scope.St.Ln][scope.St.Ch]
	sz := len(*rs)
	if sz == 0 {
		return nil, false
	}
	return rs.Find(pr, scope)
}

// RuleString returns the rule info for entire source -- if full
// then it includes the full stack at each point -- otherwise just the top