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c867c1aa47
This adds some algorithms from the whatwg mimesniff, whatwg infra, and whatwg encoding specs that FileReader needs to use internally.
31 lines
898 B
JavaScript
31 lines
898 B
JavaScript
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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// @ts-check
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/// <reference path="../../core/lib.deno_core.d.ts" />
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/// <reference path="../web/internal.d.ts" />
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/// <reference path="../web/lib.deno_web.d.ts" />
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"use strict";
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((window) => {
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/**
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* https://infra.spec.whatwg.org/#collect-a-sequence-of-code-points
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* @param {string} input
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* @param {number} position
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* @param {(char: string) => boolean} condition
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* @returns {{result: string, position: number}}
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*/
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function collectSequenceOfCodepoints(input, position, condition) {
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const start = position;
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for (
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let c = input.charAt(position);
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position < input.length && condition(c);
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c = input.charAt(++position)
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);
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return { result: input.slice(start, position), position };
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}
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window.__bootstrap.infra = {
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collectSequenceOfCodepoints,
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};
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})(globalThis);
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