Port regexp tests from V8 to Dart.

tests/corelib/regexp/indexof_test.dart

+// Copyright (c) 2014, the Dart project authors. All rights reserved.
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import 'v8_regexp_utils.dart';
+import 'package:expect/expect.dart';
+
+void main() {
+  dynamic CheckMatch(re, str, matches) {
+    assertEquals(matches.length > 0, re.hasMatch(str));
+    var result = re.allMatches(str).toList();
+    if (matches.length > 0) {
+      assertEquals(matches.length, result.length);
+      var lastExpected;
+      var lastFrom;
+      var lastLength;
+      for (var idx = 0; idx < matches.length; idx++) {
+        var from = matches[idx][0];
+        var length = matches[idx][1];
+        var expected = str.substring(from, from + length);
+        var name = "$str[$from..${from+length}]";
+        assertEquals(expected, result[idx].group(0), name);
+      }
+    } else {
+      assertTrue(result.isEmpty);
+    }
+  }
+
+  CheckMatch(new RegExp(r"abc"), "xxxabcxxxabcxxx", [[3, 3], [9, 3]]);
+  CheckMatch(new RegExp(r"abc"), "abcabcabc", [[0, 3], [3, 3], [6, 3]]);
+  CheckMatch(new RegExp(r"aba"), "ababababa", [[0, 3], [4, 3]]);
+  CheckMatch(new RegExp(r"foo"), "ofooofoooofofooofo", [[1, 3], [5, 3], [12, 3]]);
+  CheckMatch(new RegExp(r"foobarbaz"), "xx", []);
+  CheckMatch(new RegExp(r"abc"), "abababa", []);
+
+  assertEquals("xxxdefxxxdefxxx", "xxxabcxxxabcxxx".replaceAll(new RegExp(r"abc"), "def"));
+  assertEquals("o-o-oofo-ofo", "ofooofoooofofooofo".replaceAll(new RegExp(r"foo"), "-"));
+  assertEquals("deded", "deded".replaceAll(new RegExp(r"x"), "-"));
+  assertEquals("-a-b-c-d-e-f-", "abcdef".replaceAll(new RegExp(""), "-"));
+
+  CheckMatch(new RegExp(r"a(.)"), "xyzzyabxyzzyacxyzzy", [[5, 2], [12, 2]]);
+
+  CheckMatch(new RegExp(r"a|(?:)"), "aba", [[0, 1], [1, 0], [2, 1], [3, 0]]);
+  CheckMatch(new RegExp(r"a|(?:)"), "baba", [[0, 0], [1, 1], [2, 0], [3, 1], [4, 0]]);
+  CheckMatch(new RegExp(r"a|(?:)"), "bab", [[0, 0], [1, 1], [2, 0], [3, 0]]);
+}