forked from M3-Academy/challenge-algorithms-v2.0
41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
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/**
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* @license
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* Copyright (c) 2016, Contributors
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* SPDX-License-Identifier: ISC
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*/
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// take an un-split argv string and tokenize it.
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export function tokenizeArgString(argString) {
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if (Array.isArray(argString)) {
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return argString.map(e => typeof e !== 'string' ? e + '' : e);
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}
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argString = argString.trim();
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let i = 0;
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let prevC = null;
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let c = null;
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let opening = null;
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const args = [];
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for (let ii = 0; ii < argString.length; ii++) {
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prevC = c;
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c = argString.charAt(ii);
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// split on spaces unless we're in quotes.
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if (c === ' ' && !opening) {
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if (!(prevC === ' ')) {
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i++;
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}
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continue;
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}
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// don't split the string if we're in matching
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// opening or closing single and double quotes.
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if (c === opening) {
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opening = null;
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}
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else if ((c === "'" || c === '"') && !opening) {
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opening = c;
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}
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if (!args[i])
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args[i] = '';
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args[i] += c;
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}
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return args;
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}
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