| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion 15.10.2.7: The production QuantifierPrefix :: {DecimalDigits, } |
| /// evaluates by returning MV of DecimalDigits and infinity. |
| /// @description Checks that this quantifier is applied correctly in various |
| /// scenarios. |
| /// @3rdparty sputnik-v1:S15.10.2.7_A6_T1.js-S15.10.2.7_A6_T6.js |
| /// @author rodionov |
| |
| import "../../../../Utils/expect.dart"; |
| |
| main() { |
| check(r"b{2,}c", "aaabbbbcccddeeeefffff",3, ["bbbbc"]); |
| checkNeg(r"b{8,}c", "aaabbbbcccddeeeefffff"); |
| check(r"\d{1,}", "wqe456646dsff", 3, ["456646"]); |
| check(r"(123){1,}", "123123", 0, ["123123", "123"]); |
| check(r"(123){1,}?", "123123", 0, ["123", "123"]); |
| check(r"(123){1,}x\1", "123123x123", 0, ["123123x123", "123"]); |
| check(r"x{1,2}x{1,}", "xxxxxxx", 0, ["xxxxxxx"]); |
| check(r"(a{1,2})\1{1,}", "aaaaaaaa", 0, ["aaaaaaaa", "aa"]); |
| check(r"(a{1,2})\1{1,}", "aaaaaaaaa", 0, ["aaaaaaaa", "aa"]); |
| } |
| |
| void check(String pattern, String str, int matchPos, List<String> expGroups) { |
| RegExp re = new RegExp(pattern); |
| Expect.isNotNull(re.firstMatch(str)); |
| Match fm = re.firstMatch(str) as Match; |
| if(matchPos >= 0) { |
| Expect.equals(matchPos, fm.start); |
| } |
| if(null != expGroups) { |
| Expect.equals(expGroups.length, fm.groupCount + 1); |
| |
| for(int i = 0; i <= fm.groupCount; i++) { |
| String? expGr = expGroups[i]; |
| String? actGr = fm.group(i); |
| Expect.equals(expGr, actGr, |
| "Mismatch at group $i: \"$expGr\" expected instead of \"$actGr\""); |
| } |
| } |
| } |
| |
| void checkNeg(String pattern, String str) { |
| RegExp re = new RegExp(pattern); |
| Expect.isNull(re.firstMatch(str), "\"$pattern\" ~ \"$str\""); |
| } |