args-parser/parse.js

"use strict";

/*
	Straight-forward node.js arguments parser
	Author: eveningkid
	License: Apache-2.0
*/

function Parse (argv) {
	// Removing node/bin and called script name
	argv = argv.slice(2);

	// Returned object
	var args = {};
	
	var argName, argValue;

	// For each argument
	argv.forEach(function (arg, index) {
		// Seperate argument, for a key/value return
		arg = arg.split('=');

		// Retrieve the argument name
		argName = arg[0];
    
		// Remove "--" or "-"
		if (argName.indexOf('-') === 0) {
			argName = argName.slice(argName.slice(0, 2).lastIndexOf('-') + 1);
		}
		
		// Associate defined value or initialize it to "true" state
		argValue = (arg.length === 2)
			? parseFloat(arg[1]).toString() === arg[1] // check if argument is valid number
				? +arg[1]
				: arg[1]
			: true;

		// Finally add the argument to the args set
		args[argName] = argValue;
	});

	return args;
}

module.exports = Parse;