const regexp/syntax.OpConcat

18 uses

	regexp/syntax (current package)
		compile.go#L138: 	case OpConcat:
		op_string.go#L28: 	_ = x[OpConcat-18]
		parse.go#L227: 	case OpConcat:
		parse.go#L496: 	return p.push(p.collapse(subs, OpConcat))
		parse.go#L649: 			re := p.newRegexp(OpConcat)
		parse.go#L707: 			re := p.newRegexp(OpConcat)
		parse.go#L782: 	if re.Op == OpConcat && len(re.Sub) > 0 {
		parse.go#L794: 	if re.Op == OpConcat && len(re.Sub) > 0 {
		parse.go#L834: 	if re.Op == OpConcat && len(re.Sub) > 0 {
		parse.go#L848: 	if re.Op == OpConcat && len(re.Sub) > 0 {
		regexp.go#L56: 	OpConcat                       // matches concatenation of Subs
		regexp.go#L87: 	case OpAlternate, OpConcat:
		regexp.go#L226: 	case OpConcat:
		simplify.go#L19: 	case OpCapture, OpConcat, OpAlternate:
		simplify.go#L64: 			nre := &Regexp{Op: OpConcat}
		simplify.go#L87: 			prefix = &Regexp{Op: OpConcat}
		simplify.go#L98: 				nre2 := &Regexp{Op: OpConcat}

	regexp
		regexp.go#L294: 	case syntax.OpConcat: