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>
78 lines
3.8 KiB
Dart
78 lines
3.8 KiB
Dart
// Copyright (c) 2019, the Dart project authors. All rights reserved.
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// Copyright 2016 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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void t(RegExp re, String s) {
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assertTrue(re.hasMatch(s));
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}
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void f(RegExp re, String s) {
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assertFalse(re.hasMatch(s));
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}
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t(RegExp(r"\p{Script=Common}+", unicode: true), ".");
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f(RegExp(r"\p{Script=Common}+", unicode: true),
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"supercalifragilisticexpialidocious");
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t(RegExp(r"\p{Script=Han}+", unicode: true), "话说天下大势，分久必合，合久必分");
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t(RegExp(r"\p{Script=Hani}+", unicode: true), "吾庄后有一桃园，花开正盛");
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f(RegExp(r"\p{Script=Han}+", unicode: true), "おはようございます");
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f(RegExp(r"\p{Script=Hani}+", unicode: true),
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"Something is rotten in the state of Denmark");
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t(RegExp(r"\p{Script=Latin}+", unicode: true),
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"Wie froh bin ich, daß ich weg bin!");
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t(RegExp(r"\p{Script=Latn}+", unicode: true),
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"It was a bright day in April, and the clocks were striking thirteen");
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f(RegExp(r"\p{Script=Latin}+", unicode: true), "奔腾千里荡尘埃，渡水登山紫雾开");
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f(RegExp(r"\p{Script=Latn}+", unicode: true), "いただきます");
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t(RegExp(r"\p{sc=Hiragana}", unicode: true), "いただきます");
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t(RegExp(r"\p{sc=Hira}", unicode: true), "ありがとうございました");
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f(RegExp(r"\p{sc=Hiragana}", unicode: true),
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"Als Gregor Samsa eines Morgens aus unruhigen Träumen erwachte");
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f(RegExp(r"\p{sc=Hira}", unicode: true), "Call me Ishmael");
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t(RegExp(r"\p{sc=Phoenician}", unicode: true), "\u{10900}\u{1091a}");
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t(RegExp(r"\p{sc=Phnx}", unicode: true), "\u{1091f}\u{10916}");
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f(RegExp(r"\p{sc=Phoenician}", unicode: true), "Arthur est un perroquet");
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f(RegExp(r"\p{sc=Phnx}", unicode: true), "设心狠毒非良士，操卓原来一路人");
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t(RegExp(r"\p{sc=Grek}", unicode: true),
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"ἄνδρα μοι ἔννεπε, μοῦσα, πολύτροπον, ὃς μάλα πολλὰ");
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t(RegExp(r"\p{sc=Greek}", unicode: true),
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"μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος");
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f(RegExp(r"\p{sc=Greek}", unicode: true), "高贤未服英雄志，屈节偏生杰士疑");
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f(RegExp(r"\p{sc=Greek}", unicode: true),
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"Mr. Jones, of the Manor Farm, had locked the hen-houses for the night");
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}
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