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31 lines
782 B
31 lines
782 B
'use strict'; |
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var GetIntrinsic = require('get-intrinsic'); |
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var callBound = require('call-bind/callBound'); |
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var $fromCharCode = GetIntrinsic('%String.fromCharCode%'); |
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var $TypeError = GetIntrinsic('%TypeError%'); |
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var $charCodeAt = callBound('%String.prototype.charCodeAt%'); |
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var $push = callBound('%Array.prototype.push%'); |
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module.exports = function CharacterRange(A, B) { |
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if (A.length !== 1 || B.length !== 1) { |
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throw new $TypeError('Assertion failed: CharSets A and B contain exactly one character'); |
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} |
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var a = A[0]; |
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var b = B[0]; |
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var i = $charCodeAt(a, 0); |
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var j = $charCodeAt(b, 0); |
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if (!(i <= j)) { |
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throw new $TypeError('Assertion failed: i is not <= j'); |
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} |
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var arr = []; |
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for (var k = i; k <= j; k += 1) { |
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$push(arr, $fromCharCode(k)); |
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} |
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return arr; |
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};
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