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35 lines
820 B
35 lines
820 B
'use strict'; |
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var callBound = require('call-bound'); |
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var $TypeError = require('es-errors/type'); |
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var isInteger = require('math-intrinsics/isInteger'); |
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var $charAt = callBound('String.prototype.charAt'); |
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// https://262.ecma-international.org/12.0/#sec-splitmatch |
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module.exports = function SplitMatch(S, q, R) { |
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if (typeof S !== 'string') { |
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throw new $TypeError('Assertion failed: `S` must be a String'); |
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} |
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if (!isInteger(q)) { |
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throw new $TypeError('Assertion failed: `q` must be an integer'); |
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} |
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if (typeof R !== 'string') { |
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throw new $TypeError('Assertion failed: `R` must be a String'); |
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} |
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var r = R.length; |
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var s = S.length; |
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if (q + r > s) { |
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return 'not-matched'; |
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} |
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for (var i = 0; i < r; i += 1) { |
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if ($charAt(S, q + i) !== $charAt(R, i)) { |
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return 'not-matched'; |
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} |
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} |
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return q + r; |
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};
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