v8/test/intl/regress-10573.js
Iain Ireland 17f8f12bcb [regexp] Document incorrect assertion in intl/regress-10573.js
There are at least three equivalence classes where this assertion
should not actually hold:

  '\u0390\u1fd3',              // ΐΐ
  '\u03b0\u1fe3',              // ΰΰ
  '\ufb05\ufb06',              // ſtst

Bug: v8:10591
Change-Id: I26cb43d2e67c54e689f1831ea13be46c73d5e92d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2231595
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68246}
2020-06-09 06:27:27 +00:00

77 lines
2.7 KiB
JavaScript
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This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
function assertEquals(a,b) { if (a !== b) print("BLAH"); }
// See https://tc39.es/ecma262/#sec-runtime-semantics-canonicalize-ch
function Canonicalize(ch) {
var u = ch.toUpperCase();
if (u.length > 1) return ch;
var cu = u.charCodeAt(0);
if (ch.charCodeAt(0) >= 128 && cu < 128) return ch;
return cu;
}
function TestEquivalenceClass(eclass) {
var backref = /(.)\1/i;
var backrefUnicode = /(.)\1/iu;
for (var i = 0; i < eclass.length; i++) {
for (var j = 0; j < eclass.length; j++) {
if (i == j) continue;
var c1 = eclass[i];
var c2 = eclass[j];
var cc = c1 + c2;
var shouldMatch = Canonicalize(c1) === Canonicalize(c2);
assertEquals(backref.test(cc), shouldMatch);
//TODO(v8:10591): Update expectations for ΐΐ, ΰΰ, and ſtst once
//case folding is fixed.
assertEquals(backrefUnicode.test(cc), true);
}
}
}
function TestAll() {
for (var eclass of equivalence_classes) {
TestEquivalenceClass(eclass);
}
}
// Interesting case-folding equivalence classes (as determined by
// ICU's UnicodeSet::closeOver). A class is interesting if it contains
// more than two characters, or if it contains any characters in
// IgnoreSet or SpecialAddSet as defined in src/regexp/special-case.h.
var equivalence_classes = [
'\u0041\u0061', // Aa (sanity check)
'\u004b\u006b\u212a', // Kk
'\u0053\u0073\u017f', // Ssſ
'\u00b5\u039c\u03bc', // µΜμ
'\u00c5\u00e5\u212b', // ÅåÅ
'\u00df\u1e9e', // ßẞ
'\u03a9\u03c9\u2126', // ΩωΩ
'\u0390\u1fd3', // ΐΐ
'\u0398\u03b8\u03d1\u03f4', // Θθϑϴ
'\u03b0\u1fe3', // ΰΰ
'\u1f80\u1f88', // ᾀᾈ
'\u1fb3\u1fbc', // ᾳᾼ
'\u1fc3\u1fcc', // ῃῌ
'\u1ff3\u1ffc', // ῳῼ
'\ufb05\ufb06', // ſtst
// Everything below this line is a well-behaved case-folding
// equivalence class with more than two characters but only one
// canonical case-folded character
'\u01c4\u01c5\u01c6', '\u01c7\u01c8\u01c9', '\u01ca\u01cb\u01cc',
'\u01f1\u01f2\u01f3', '\u0345\u0399\u03b9\u1fbe', '\u0392\u03b2\u03d0',
'\u0395\u03b5\u03f5', '\u039a\u03ba\u03f0', '\u03a0\u03c0\u03d6',
'\u03a1\u03c1\u03f1', '\u03a3\u03c2\u03c3', '\u03a6\u03c6\u03d5',
'\u0412\u0432\u1c80', '\u0414\u0434\u1c81', '\u041e\u043e\u1c82',
'\u0421\u0441\u1c83', '\u0422\u0442\u1c84\u1c85', '\u042a\u044a\u1c86',
'\u0462\u0463\u1c87', '\u1c88\ua64a\ua64b', '\u1e60\u1e61\u1e9b'
];
TestAll();