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