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codeql-action/node_modules/es-abstract/2017/WordCharacters.js
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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 | |
}; |