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node_modules/es-abstract/2017/WordCharacters.js
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drndsv
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14 апр 2025, 22:53
14 апр 2025, 22:53
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'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var callBound = require('call-bind/callBound'); var $indexOf = callBound('String.prototype.indexOf', true); var Canonicalize = require('./Canonicalize'); var Type = require('./Type'); var caseFolding = require('../helpers/caseFolding'); var forEach = require('../helpers/forEach'); var OwnPropertyKeys = require('../helpers/OwnPropertyKeys'); var A = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'; // step 1 // https://262.ecma-international.org/8.0/#sec-runtime-semantics-wordcharacters-abstract-operation module.exports = function WordCharacters(IgnoreCase, Unicode) { if (Type(IgnoreCase) !== 'Boolean' || Type(Unicode) !== 'Boolean') { throw new $TypeError('Assertion failed: `IgnoreCase` and `Unicode` must be booleans'); } var U = ''; forEach(OwnPropertyKeys(caseFolding.C), function (c) { if ( $indexOf(A, c) === -1 // c not in A && $indexOf(A, Canonicalize(c, IgnoreCase, Unicode)) > -1 // canonicalized c IS in A ) { U += caseFolding.C[c]; // step 3 } }); forEach(OwnPropertyKeys(caseFolding.S), function (c) { if ( $indexOf(A, c) === -1 // c not in A && $indexOf(A, Canonicalize(c, IgnoreCase, Unicode)) > -1 // canonicalized c IS in A ) { U += caseFolding.S[c]; // step 3 } }); if ((!Unicode || !IgnoreCase) && U.length > 0) { throw new $TypeError('Assertion failed: `U` must be empty when `IgnoreCase` and `Unicode` are not both true'); // step 4 } return A + U; // step 5, 6 };