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/* Copyright (C) 2013-2014 Yusuke Suzuki <utatane.tea@gmail.com> Copyright (C) 2014 Ivan Nikulin <ifaaan@gmail.com> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ (function () { 'use strict'; var ES6Regex, ES5Regex, NON_ASCII_WHITESPACES, IDENTIFIER_START, IDENTIFIER_PART, ch; // See `tools/generate-identifier-regex.js`. ES5Regex = { // ECMAScript 5.1/Unicode v15.0.0 NonAsciiIdentifierStart: NonAsciiIdentifierStart: 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// ECMAScript 5.1/Unicode v15.0.0 NonAsciiIdentifierPart: NonAsciiIdentifierPart: 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}; ES6Regex = { // ECMAScript 6/Unicode v15.0.0 NonAsciiIdentifierStart: NonAsciiIdentifierStart: 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}; function isDecimalDigit(ch) { return 0x30 <= ch && ch <= 0x39; // 0..9 } function isHexDigit(ch) { return 0x30 <= ch && ch <= 0x39 || // 0..9 0x61 <= ch && ch <= 0x66 || // a..f 0x41 <= ch && ch <= 0x46; // A..F } function isOctalDigit(ch) { return ch >= 0x30 && ch <= 0x37; // 0..7 } // 7.2 White Space NON_ASCII_WHITESPACES = [ 0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF ]; function isWhiteSpace(ch) { return ch === 0x20 || ch === 0x09 || ch === 0x0B || ch === 0x0C || ch === 0xA0 || ch >= 0x1680 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0; } // 7.3 Line Terminators function isLineTerminator(ch) { return ch === 0x0A || ch === 0x0D || ch === 0x2028 || ch === 0x2029; } // 7.6 Identifier Names and Identifiers function fromCodePoint(cp) { if (cp <= 0xFFFF) { return String.fromCharCode(cp); } var cu1 = String.fromCharCode(Math.floor((cp - 0x10000) / 0x400) + 0xD800); var cu2 = String.fromCharCode(((cp - 0x10000) % 0x400) + 0xDC00); return cu1 + cu2; } IDENTIFIER_START = new Array(0x80); for(ch = 0; ch < 0x80; ++ch) { IDENTIFIER_START[ch] = ch >= 0x61 && ch <= 0x7A || // a..z ch >= 0x41 && ch <= 0x5A || // A..Z ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore) } IDENTIFIER_PART = new Array(0x80); for(ch = 0; ch < 0x80; ++ch) { IDENTIFIER_PART[ch] = ch >= 0x61 && ch <= 0x7A || // a..z ch >= 0x41 && ch <= 0x5A || // A..Z ch >= 0x30 && ch <= 0x39 || // 0..9 ch === 0x24 || ch === 0x5F; // $ (dollar) and _ (underscore) } function isIdentifierStartES5(ch) { return ch < 0x80 ? IDENTIFIER_START[ch] : ES5Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch)); } function isIdentifierPartES5(ch) { return ch < 0x80 ? IDENTIFIER_PART[ch] : ES5Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch)); } function isIdentifierStartES6(ch) { return ch < 0x80 ? IDENTIFIER_START[ch] : ES6Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch)); } function isIdentifierPartES6(ch) { return ch < 0x80 ? IDENTIFIER_PART[ch] : ES6Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch)); } module.exports = { isDecimalDigit: isDecimalDigit, isHexDigit: isHexDigit, isOctalDigit: isOctalDigit, isWhiteSpace: isWhiteSpace, isLineTerminator: isLineTerminator, isIdentifierStartES5: isIdentifierStartES5, isIdentifierPartES5: isIdentifierPartES5, isIdentifierStartES6: isIdentifierStartES6, isIdentifierPartES6: isIdentifierPartES6 }; }()); /* vim: set sw=4 ts=4 et tw=80 : */
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