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73 lines
1.9 KiB
73 lines
1.9 KiB
2 years ago
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var defaults = require('./defaults');
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var toNum = require('./toNum');
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var invert = require('./invert');
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var toBool = require('./toBool');
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exports = function(args, opts) {
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opts = opts || {};
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defaults(opts, defOpts);
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var names = opts.names;
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var shorthands = invert(opts.shorthands);
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var remain = [];
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var ret = {
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remain: remain
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};
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var name;
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var type;
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for (var i = 0, len = args.length; i < len; i++) {
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var arg = args[i];
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var nextArg = args[i + 1];
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var match = arg.match(regDoubleDash);
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if (match) {
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name = match[1];
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type = names[name];
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if (!type) {
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remain.push(arg);
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} else if (nextArg && !regDashStart.test(nextArg)) {
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setArg(name, nextArg);
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i++;
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} else if (type === 'boolean') {
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setArg(name, true);
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i++;
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}
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continue;
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}
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match = arg.match(regSingleDash);
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if (match) {
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var letters = match[1];
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for (var j = 0; j < letters.length; j++) {
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var letter = letters[j];
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name = shorthands[letter];
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if (!name) continue;
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type = names[name];
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if (type === 'boolean') setArg(shorthands[letter], true);
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}
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continue;
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}
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remain.push(arg);
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}
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function setArg(name, val) {
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var type = names[name];
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switch (type) {
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case 'number':
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val = toNum(val);
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break;
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case 'boolean':
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val = toBool(val);
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break;
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default:
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break;
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}
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ret[name] = val;
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}
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return ret;
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};
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var defOpts = {
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names: {},
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shorthands: {}
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};
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var regDoubleDash = /^--(.+)/;
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var regSingleDash = /^-([^-]+)/;
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var regDashStart = /^-/;
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module.exports = exports;
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