mirror of https://github.com/tc39/test262.git
53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: "CharacterEscape :: c ControlLetter"
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es5id: 15.10.2.10_A2.1_T3
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es6id: B.1.4
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description: >
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"ControlLetter :: RUSSIAN ALPHABET is incorrect"
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Instead, fall back to semantics to match literal "\\c"
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---*/
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function* invalidControls() {
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// Check upper case Cyrillic
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for (var alpha = 0x0410; alpha <= 0x042F; alpha++) {
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yield String.fromCharCode(alpha);
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}
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// Check lower case Cyrillic
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for (alpha = 0x0430; alpha <= 0x044F; alpha++) {
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yield String.fromCharCode(alpha);
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}
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// Check ASCII characters which are not in the extended range or syntax
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// characters
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for (alpha = 0x00; alpha <= 0x7F; alpha++) {
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let letter = String.fromCharCode(alpha);
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if (!letter.match(/[0-9A-Za-z_\$(|)\[\]\/\\^]/)) {
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yield letter;
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}
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}
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// Check for end of string
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yield "";
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}
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for (let letter of invalidControls()) {
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var source = "\\c" + letter;
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var re = new RegExp(source);
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if (letter.length > 0) {
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var char = letter.charCodeAt(0);
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var str = String.fromCharCode(char % 32);
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var arr = re.exec(str);
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assert.sameValue(arr, null, `Character ${letter} unreasonably wrapped around as a control character`);
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}
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arr = re.exec(source.substring(1));
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assert.sameValue(arr, null, `invalid \\c escape matched c rather than \\c when followed by ${letter}`);
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arr = re.exec(source);
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assert.notSameValue(arr, null, `invalid \\c escape failed to match \\c when followed by ${letter}`);
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}
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