const regexp/syntax.OpEmptyMatch

16 uses

	regexp/syntax (current package)
		compile.go#L92: 	case OpEmptyMatch:
		parse.go#L304: 		return p.push(p.newRegexp(OpEmptyMatch))
		parse.go#L574: 		if i+1 < len(sub) && sub[i].Op == OpEmptyMatch && sub[i+1].Op == OpEmptyMatch {
		parse.go#L605: 		if sub.Op == OpEmptyMatch {
		parse.go#L610: 				re.Op = OpEmptyMatch
		parse.go#L627: 			re.Op = OpEmptyMatch
		parse.go#L636: 	if re.Op == OpEmptyMatch {
		parse.go#L641: 		if sub.Op == OpEmptyMatch {
		parse.go#L660: 			re.Op = OpEmptyMatch
		parse.go#L672: 	return p.newRegexp(OpEmptyMatch)
		regexp.go#L40: 	OpEmptyMatch                   // matches empty string
		regexp.go#L122: 	case OpEmptyMatch:
		regexp.go#L193: 		if re.Sub[0].Op != OpEmptyMatch {
		simplify.go#L45: 			return &Regexp{Op: OpEmptyMatch}
		simplify.go#L137: 	if sub.Op == OpEmptyMatch {