Stevie Strickland
4028fec3b5
This work pulls in v8 support for these features with appropriate changes for Dart and closes https://github.com/dart-lang/sdk/issues/34935. This adds support for the following features: * Interpreting patterns as Unicode patterns instead of BMP patterns * the dotAll flag (`/s`) for changing the behavior of '.' to also match line terminators * Escapes for character classes described by Unicode property groups (e.g., \p{Greek} to match all Greek characters, or \P{Greek} for all non-Greek characters). The following TC39 proposals describe some of the added features: * https://github.com/tc39/proposal-regexp-dotall-flag * https://github.com/tc39/proposal-regexp-unicode-property-escapes These additional changes are included: * Extends named capture group names to include the full range of identifier characters supported by ECMAScript, not just ASCII. * Changing the RegExp interface to return RegExpMatch objects, not Match objects, so that downcasting is not necessary to use named capture groups from Dart **Note**: The changes to the RegExp interface are a breaking change for implementers of the RegExp interface. Current users of the RegExp interface (i.e., code using Dart RegExp objects) will not be affected. Change-Id: Ie62e6082a0e2fedc1680ef2576ce0c6db80fc19a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100641 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Stevie Strickland <sstrickl@google.com>
118 lines
4.5 KiB
Dart
118 lines
4.5 KiB
Dart
// Copyright (c) 2019, the Dart project authors. All rights reserved.
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// Copyright 2017 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import 'package:expect/expect.dart';
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import 'v8_regexp_utils.dart';
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void main() {
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// The flags accessors.
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var re = new RegExp(r".", dotAll: true);
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assertTrue(re.isCaseSensitive);
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assertFalse(re.isMultiLine);
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assertFalse(re.isUnicode);
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assertTrue(re.isDotAll);
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re = new RegExp(r".",
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caseSensitive: false, multiLine: true, unicode: true, dotAll: true);
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assertFalse(re.isCaseSensitive);
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assertTrue(re.isMultiLine);
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assertTrue(re.isUnicode);
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assertTrue(re.isDotAll);
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re = new RegExp(r".", caseSensitive: false, multiLine: true, unicode: true);
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assertFalse(re.isCaseSensitive);
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assertTrue(re.isMultiLine);
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assertTrue(re.isUnicode);
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assertFalse(re.isDotAll);
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// Default '.' behavior.
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re = new RegExp(r"^.$");
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assertTrue(re.hasMatch("a"));
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assertTrue(re.hasMatch("3"));
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assertTrue(re.hasMatch("π"));
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assertTrue(re.hasMatch("\u2027"));
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assertTrue(re.hasMatch("\u0085"));
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assertTrue(re.hasMatch("\v"));
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assertTrue(re.hasMatch("\f"));
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assertTrue(re.hasMatch("\u180E"));
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assertFalse(re.hasMatch("\u{10300}")); // Supplementary plane.
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assertFalse(re.hasMatch("\n"));
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assertFalse(re.hasMatch("\r"));
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assertFalse(re.hasMatch("\u2028"));
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assertFalse(re.hasMatch("\u2029"));
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// Default '.' behavior (unicode).
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re = new RegExp(r"^.$", unicode: true);
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assertTrue(re.hasMatch("a"));
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assertTrue(re.hasMatch("3"));
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assertTrue(re.hasMatch("π"));
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assertTrue(re.hasMatch("\u2027"));
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assertTrue(re.hasMatch("\u0085"));
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assertTrue(re.hasMatch("\v"));
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assertTrue(re.hasMatch("\f"));
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assertTrue(re.hasMatch("\u180E"));
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assertTrue(re.hasMatch("\u{10300}")); // Supplementary plane.
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assertFalse(re.hasMatch("\n"));
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assertFalse(re.hasMatch("\r"));
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assertFalse(re.hasMatch("\u2028"));
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assertFalse(re.hasMatch("\u2029"));
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// DotAll '.' behavior.
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re = new RegExp(r"^.$", dotAll: true);
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assertTrue(re.hasMatch("a"));
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assertTrue(re.hasMatch("3"));
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assertTrue(re.hasMatch("π"));
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assertTrue(re.hasMatch("\u2027"));
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assertTrue(re.hasMatch("\u0085"));
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assertTrue(re.hasMatch("\v"));
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assertTrue(re.hasMatch("\f"));
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assertTrue(re.hasMatch("\u180E"));
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assertFalse(re.hasMatch("\u{10300}")); // Supplementary plane.
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assertTrue(re.hasMatch("\n"));
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assertTrue(re.hasMatch("\r"));
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assertTrue(re.hasMatch("\u2028"));
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assertTrue(re.hasMatch("\u2029"));
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// DotAll '.' behavior (unicode).
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re = new RegExp(r"^.$", unicode: true, dotAll: true);
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assertTrue(re.hasMatch("a"));
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assertTrue(re.hasMatch("3"));
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assertTrue(re.hasMatch("π"));
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assertTrue(re.hasMatch("\u2027"));
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assertTrue(re.hasMatch("\u0085"));
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assertTrue(re.hasMatch("\v"));
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assertTrue(re.hasMatch("\f"));
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assertTrue(re.hasMatch("\u180E"));
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assertTrue(re.hasMatch("\u{10300}")); // Supplementary plane.
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assertTrue(re.hasMatch("\n"));
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assertTrue(re.hasMatch("\r"));
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assertTrue(re.hasMatch("\u2028"));
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assertTrue(re.hasMatch("\u2029"));
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}
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