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// Copyright (c) 2014, the Dart project authors. All rights reserved.
// Copyright 2008 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
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//
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import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';
void main() {
// UC16
// Characters used:
// "\u03a3\u03c2\u03c3\u039b\u03bb" - Sigma, final sigma, sigma, Lambda, lamda
shouldBe(new RegExp(r"x(.)\1x", caseSensitive: false).firstMatch("x\u03a3\u03c3x"),
["x\u03a3\u03c3x", "\u03a3"], "backref-UC16");
assertFalse(new RegExp(r"x(...)\1", caseSensitive: false).hasMatch("x\u03a3\u03c2\u03c3\u03c2\u03c3"),
"\1 ASCII, string short");
assertTrue(new RegExp(r"\u03a3((?:))\1\1x", caseSensitive: false).hasMatch("\u03c2x"), "backref-UC16-empty");
assertTrue(new RegExp(r"x(?:...|(...))\1x", caseSensitive: false).hasMatch("x\u03a3\u03c2\u03c3x"),
"backref-UC16-uncaptured");
assertTrue(new RegExp(r"x(?:...|(...))\1x", caseSensitive: false).hasMatch("x\u03c2\u03c3\u039b\u03a3\u03c2\u03bbx"),
"backref-UC16-backtrack");
var longUC16String = "x\u03a3\u03c2\u039b\u03c2\u03c3\u03bb\u03c3\u03a3\u03bb";
shouldBe(new RegExp(r"x(...)\1\1", caseSensitive: false).firstMatch(longUC16String),
[longUC16String, longUC16String.substring(1,4)],
"backref-UC16-twice");
assertFalse(new RegExp(r"\xc1", caseSensitive: false).hasMatch('fooA'), "quickcheck-uc16-pattern-ascii-subject");
assertFalse(new RegExp(r"[\xe9]").hasMatch('i'), "charclass-uc16-pattern-ascii-subject");
assertFalse(new RegExp(r"\u5e74|\u6708").hasMatch('t'), "alternation-uc16-pattern-ascii-subject");
}