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a1d639ba5d
PR-URL: https://github.com/nodejs/node/pull/35415 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Myles Borins <myles.borins@gmail.com>
77 lines
2.7 KiB
JavaScript
77 lines
2.7 KiB
JavaScript
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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function assertEquals(a,b) { if (a !== b) print("BLAH"); }
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// See https://tc39.es/ecma262/#sec-runtime-semantics-canonicalize-ch
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function Canonicalize(ch) {
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var u = ch.toUpperCase();
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if (u.length > 1) return ch;
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var cu = u.charCodeAt(0);
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if (ch.charCodeAt(0) >= 128 && cu < 128) return ch;
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return cu;
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}
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function TestEquivalenceClass(eclass) {
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var backref = /(.)\1/i;
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var backrefUnicode = /(.)\1/iu;
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for (var i = 0; i < eclass.length; i++) {
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for (var j = 0; j < eclass.length; j++) {
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if (i == j) continue;
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var c1 = eclass[i];
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var c2 = eclass[j];
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var cc = c1 + c2;
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var shouldMatch = Canonicalize(c1) === Canonicalize(c2);
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assertEquals(backref.test(cc), shouldMatch);
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//TODO(v8:10591): Update expectations for ΐΐ, ΰΰ, and ſtst once
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//case folding is fixed.
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assertEquals(backrefUnicode.test(cc), true);
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}
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}
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}
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function TestAll() {
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for (var eclass of equivalence_classes) {
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TestEquivalenceClass(eclass);
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}
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}
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// Interesting case-folding equivalence classes (as determined by
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// ICU's UnicodeSet::closeOver). A class is interesting if it contains
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// more than two characters, or if it contains any characters in
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// IgnoreSet or SpecialAddSet as defined in src/regexp/special-case.h.
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var equivalence_classes = [
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'\u0041\u0061', // Aa (sanity check)
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'\u004b\u006b\u212a', // KkK
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'\u0053\u0073\u017f', // Ssſ
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'\u00b5\u039c\u03bc', // µΜμ
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'\u00c5\u00e5\u212b', // ÅåÅ
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'\u00df\u1e9e', // ßẞ
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'\u03a9\u03c9\u2126', // ΩωΩ
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'\u0390\u1fd3', // ΐΐ
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'\u0398\u03b8\u03d1\u03f4', // Θθϑϴ
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'\u03b0\u1fe3', // ΰΰ
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'\u1f80\u1f88', // ᾀᾈ
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'\u1fb3\u1fbc', // ᾳᾼ
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'\u1fc3\u1fcc', // ῃῌ
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'\u1ff3\u1ffc', // ῳῼ
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'\ufb05\ufb06', // ſtst
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// Everything below this line is a well-behaved case-folding
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// equivalence class with more than two characters but only one
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// canonical case-folded character
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'\u01c4\u01c5\u01c6', '\u01c7\u01c8\u01c9', '\u01ca\u01cb\u01cc',
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'\u01f1\u01f2\u01f3', '\u0345\u0399\u03b9\u1fbe', '\u0392\u03b2\u03d0',
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'\u0395\u03b5\u03f5', '\u039a\u03ba\u03f0', '\u03a0\u03c0\u03d6',
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'\u03a1\u03c1\u03f1', '\u03a3\u03c2\u03c3', '\u03a6\u03c6\u03d5',
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'\u0412\u0432\u1c80', '\u0414\u0434\u1c81', '\u041e\u043e\u1c82',
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'\u0421\u0441\u1c83', '\u0422\u0442\u1c84\u1c85', '\u042a\u044a\u1c86',
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'\u0462\u0463\u1c87', '\u1c88\ua64a\ua64b', '\u1e60\u1e61\u1e9b'
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];
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TestAll();
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