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Diffstat (limited to 'node_modules/@babel/regjsgen/regjsgen.js')
| -rw-r--r-- | node_modules/@babel/regjsgen/regjsgen.js | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/node_modules/@babel/regjsgen/regjsgen.js b/node_modules/@babel/regjsgen/regjsgen.js deleted file mode 100644 index c24eb489..00000000 --- a/node_modules/@babel/regjsgen/regjsgen.js +++ /dev/null @@ -1,425 +0,0 @@ -/*! - * regjsgen 0.5.2 - * Copyright 2014-2020 Benjamin Tan <https://ofcr.se/> - * Available under the MIT license <https://github.com/bnjmnt4n/regjsgen/blob/master/LICENSE-MIT.txt> - */ -;(function() { - 'use strict'; - - // Used to determine if values are of the language type `Object`. - var objectTypes = { - 'function': true, - 'object': true - }; - - // Used as a reference to the global object. - var root = (objectTypes[typeof window] && window) || this; - - // Detect free variable `exports`. - var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports; - - // Detect free variable `module`. - var hasFreeModule = objectTypes[typeof module] && module && !module.nodeType; - - // Detect free variable `global` from Node.js or Browserified code and use it as `root`. - var freeGlobal = freeExports && hasFreeModule && typeof global == 'object' && global; - if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) { - root = freeGlobal; - } - - // Used to check objects for own properties. - var hasOwnProperty = Object.prototype.hasOwnProperty; - - /*--------------------------------------------------------------------------*/ - - // Generates a string based on the given code point. - // Based on https://mths.be/fromcodepoint by @mathias. - function fromCodePoint() { - var codePoint = Number(arguments[0]); - - if ( - !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity` - codePoint < 0 || // not a valid Unicode code point - codePoint > 0x10FFFF || // not a valid Unicode code point - Math.floor(codePoint) != codePoint // not an integer - ) { - throw RangeError('Invalid code point: ' + codePoint); - } - - if (codePoint <= 0xFFFF) { - // BMP code point - return String.fromCharCode(codePoint); - } else { - // Astral code point; split in surrogate halves - // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae - codePoint -= 0x10000; - var highSurrogate = (codePoint >> 10) + 0xD800; - var lowSurrogate = (codePoint % 0x400) + 0xDC00; - return String.fromCharCode(highSurrogate, lowSurrogate); - } - } - - /*--------------------------------------------------------------------------*/ - - // Ensures that nodes have the correct types. - var assertTypeRegexMap = {}; - function assertType(type, expected) { - if (expected.indexOf('|') == -1) { - if (type == expected) { - return; - } - - throw Error('Invalid node type: ' + type + '; expected type: ' + expected); - } - - expected = hasOwnProperty.call(assertTypeRegexMap, expected) - ? assertTypeRegexMap[expected] - : (assertTypeRegexMap[expected] = RegExp('^(?:' + expected + ')$')); - - if (expected.test(type)) { - return; - } - - throw Error('Invalid node type: ' + type + '; expected types: ' + expected); - } - - /*--------------------------------------------------------------------------*/ - - // Generates a regular expression string based on an AST. - function generate(node) { - var type = node.type; - - if (hasOwnProperty.call(generators, type)) { - return generators[type](node); - } - - throw Error('Invalid node type: ' + type); - } - - // Constructs a string by concatentating the output of each term. - function generateSequence(generator, terms, /* optional */ separator) { - var i = -1, - length = terms.length, - result = '', - term; - - while (++i < length) { - term = terms[i]; - - if (separator && i > 0) result += separator; - - // Ensure that `\0` null escapes followed by number symbols are not - // treated as backreferences. - if ( - i + 1 < length && - terms[i].type == 'value' && - terms[i].kind == 'null' && - terms[i + 1].type == 'value' && - terms[i + 1].kind == 'symbol' && - terms[i + 1].codePoint >= 48 && - terms[i + 1].codePoint <= 57 - ) { - result += '\\000'; - continue; - } - - result += generator(term); - } - - return result; - } - - /*--------------------------------------------------------------------------*/ - - function generateAlternative(node) { - assertType(node.type, 'alternative'); - - return generateSequence(generateTerm, node.body); - } - - function generateAnchor(node) { - assertType(node.type, 'anchor'); - - switch (node.kind) { - case 'start': - return '^'; - case 'end': - return '$'; - case 'boundary': - return '\\b'; - case 'not-boundary': - return '\\B'; - default: - throw Error('Invalid assertion'); - } - } - - var atomType = 'anchor|characterClass|characterClassEscape|dot|group|reference|unicodePropertyEscape|value'; - - function generateAtom(node) { - assertType(node.type, atomType); - - return generate(node); - } - - function generateCharacterClass(node) { - assertType(node.type, 'characterClass'); - - var kind = node.kind; - var separator = kind === 'intersection' ? '&&' : kind === 'subtraction' ? '--' : ''; - - return '[' + - (node.negative ? '^' : '') + - generateSequence(generateClassAtom, node.body, separator) + - ']'; - } - - function generateCharacterClassEscape(node) { - assertType(node.type, 'characterClassEscape'); - - return '\\' + node.value; - } - - function generateCharacterClassRange(node) { - assertType(node.type, 'characterClassRange'); - - var min = node.min, - max = node.max; - - if (min.type == 'characterClassRange' || max.type == 'characterClassRange') { - throw Error('Invalid character class range'); - } - - return generateClassAtom(min) + '-' + generateClassAtom(max); - } - - function generateClassAtom(node) { - assertType(node.type, 'anchor|characterClass|characterClassEscape|characterClassRange|dot|value|unicodePropertyEscape|classStrings'); - - return generate(node); - } - - function generateClassStrings(node) { - assertType(node.type, 'classStrings'); - - return '\\q{' + generateSequence(generateClassString, node.strings, '|') + '}'; - } - - function generateClassString(node) { - assertType(node.type, 'classString'); - - return generateSequence(generate, node.characters); - } - - function generateDisjunction(node) { - assertType(node.type, 'disjunction'); - - return generateSequence(generate, node.body, '|'); - } - - - function generateDot(node) { - assertType(node.type, 'dot'); - - return '.'; - } - - function generateGroup(node) { - assertType(node.type, 'group'); - - var result = ''; - - switch (node.behavior) { - case 'normal': - if (node.name) { - result += '?<' + generateIdentifier(node.name) + '>'; - } - break; - case 'ignore': - if (node.modifierFlags) { - result += '?'; - if(node.modifierFlags.enabling) result += node.modifierFlags.enabling; - if(node.modifierFlags.disabling) result += "-" + node.modifierFlags.disabling; - result += ':'; - } else { - result += '?:'; - } - break; - case 'lookahead': - result += '?='; - break; - case 'negativeLookahead': - result += '?!'; - break; - case 'lookbehind': - result += '?<='; - break; - case 'negativeLookbehind': - result += '?<!'; - break; - default: - throw Error('Invalid behaviour: ' + node.behaviour); - } - - result += generateSequence(generate, node.body); - - return '(' + result + ')'; - } - - function generateIdentifier(node) { - assertType(node.type, 'identifier'); - - return node.value; - } - - function generateQuantifier(node) { - assertType(node.type, 'quantifier'); - - var quantifier = '', - min = node.min, - max = node.max; - - if (max == null) { - if (min == 0) { - quantifier = '*'; - } else if (min == 1) { - quantifier = '+'; - } else { - quantifier = '{' + min + ',}'; - } - } else if (min == max) { - quantifier = '{' + min + '}'; - } else if (min == 0 && max == 1) { - quantifier = '?'; - } else { - quantifier = '{' + min + ',' + max + '}'; - } - - if (!node.greedy) { - quantifier += '?'; - } - - return generateAtom(node.body[0]) + quantifier; - } - - function generateReference(node) { - assertType(node.type, 'reference'); - - if (node.matchIndex) { - return '\\' + node.matchIndex; - } - if (node.name) { - return '\\k<' + generateIdentifier(node.name) + '>'; - } - - throw new Error('Unknown reference type'); - } - - function generateTerm(node) { - assertType(node.type, atomType + '|empty|quantifier'); - - return generate(node); - } - - function generateUnicodePropertyEscape(node) { - assertType(node.type, 'unicodePropertyEscape'); - - return '\\' + (node.negative ? 'P' : 'p') + '{' + node.value + '}'; - } - - function generateValue(node) { - assertType(node.type, 'value'); - - var kind = node.kind, - codePoint = node.codePoint; - - if (typeof codePoint != 'number') { - throw new Error('Invalid code point: ' + codePoint); - } - - switch (kind) { - case 'controlLetter': - return '\\c' + fromCodePoint(codePoint + 64); - case 'hexadecimalEscape': - return '\\x' + ('00' + codePoint.toString(16).toUpperCase()).slice(-2); - case 'identifier': - return '\\' + fromCodePoint(codePoint); - case 'null': - return '\\' + codePoint; - case 'octal': - return '\\' + ('000' + codePoint.toString(8)).slice(-3); - case 'singleEscape': - switch (codePoint) { - case 0x0008: - return '\\b'; - case 0x0009: - return '\\t'; - case 0x000A: - return '\\n'; - case 0x000B: - return '\\v'; - case 0x000C: - return '\\f'; - case 0x000D: - return '\\r'; - case 0x002D: - return '\\-'; - default: - throw Error('Invalid code point: ' + codePoint); - } - case 'symbol': - return fromCodePoint(codePoint); - case 'unicodeEscape': - return '\\u' + ('0000' + codePoint.toString(16).toUpperCase()).slice(-4); - case 'unicodeCodePointEscape': - return '\\u{' + codePoint.toString(16).toUpperCase() + '}'; - default: - throw Error('Unsupported node kind: ' + kind); - } - } - - /*--------------------------------------------------------------------------*/ - - // Used to generate strings for each node type. - var generators = { - 'alternative': generateAlternative, - 'anchor': generateAnchor, - 'characterClass': generateCharacterClass, - 'characterClassEscape': generateCharacterClassEscape, - 'characterClassRange': generateCharacterClassRange, - 'classStrings': generateClassStrings, - 'disjunction': generateDisjunction, - 'dot': generateDot, - 'group': generateGroup, - 'quantifier': generateQuantifier, - 'reference': generateReference, - 'unicodePropertyEscape': generateUnicodePropertyEscape, - 'value': generateValue - }; - - /*--------------------------------------------------------------------------*/ - - // Export regjsgen. - var regjsgen = { - 'generate': generate - }; - - // Some AMD build optimizers, like r.js, check for condition patterns like the following: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Define as an anonymous module so it can be aliased through path mapping. - define(function() { - return regjsgen; - }); - - root.regjsgen = regjsgen; - } - // Check for `exports` after `define` in case a build optimizer adds an `exports` object. - else if (freeExports && hasFreeModule) { - // Export for CommonJS support. - freeExports.generate = generate; - } - else { - // Export to the global object. - root.regjsgen = regjsgen; - } -}.call(this)); |
