Function parseClass

pm/pm.go:310–332

}}} * parse {{{ */

(sc *scanner, allowset bool)

/* parse {{{ */

func parseClass(sc *scanner, allowset bool) class {
	ch := sc.Next()
	switch ch {
	case '%':
		return &singleClass{sc.Next()}
	case '.':
		if allowset {
			return &dotClass{}
		}
		return &charClass{ch}
	case '[':
		if allowset {
			return parseClassSet(sc)
		}
		return &charClass{ch}
	//case '^' '$', '(', ')', ']', '*', '+', '-', '?':
	//	panic(newError(sc.CurrentPos(), "invalid %c", ch))
	case EOS:
		panic(newError(sc.CurrentPos(), "unexpected EOS"))
	default:
		return &charClass{ch}
	}
}

func parseClassSet(sc *scanner) class {
	set := &setClass{false, []class{}}