bug.js

// io registers emulation routines for EstyJs
// written by Darren Coles
"use strict";

EstyJs.bug = function() {
	var self = {};

	var log = typeof window.console != 'undefined';
	
	self.say = function(log_txt) {
		if (log) {
			console.log(log_txt);
		};
	}

/*-----------------------------------------------------------------------*/
/*
*  Javascript sprintf
*  http://www.webtoolkit.info/
*/
 
	var sprintfWrapper = {
		init: function () {
			if (typeof arguments == "undefined") {
				return null;
			}
			if (arguments.length < 1) {
				return null;
			}
			if (typeof arguments[0] != "string") {
				return null;
			}
			if (typeof RegExp == "undefined") {
				return null;
			}

			var string = arguments[0];
			var exp = new RegExp(/(%([%]|(\-)?(\+|\x20)?(0)?(\d+)?(\.(\d)?)?([bcdfosxX])))/g);
			var matches = new Array();
			var strings = new Array();
			var convCount = 0;
			var stringPosStart = 0;
			var stringPosEnd = 0;
			var matchPosEnd = 0;
			var newString = '';
			var match = null;

			while (match = exp.exec(string)) {
				if (match[9]) {
					convCount += 1;
				}

				stringPosStart = matchPosEnd;
				stringPosEnd = exp.lastIndex - match[0].length;
				strings[strings.length] = string.substring(stringPosStart, stringPosEnd);

				matchPosEnd = exp.lastIndex;
				matches[matches.length] = {
					match: match[0],
					left: match[3] ? true : false,
					sign: match[4] || '',
					pad: match[5] || ' ',
					min: match[6] || 0,
					precision: match[8],
					code: match[9] || '%',
					negative: parseInt(arguments[convCount]) < 0 ? true : false,
					argument: String(arguments[convCount])
				};
			}
			strings[strings.length] = string.substring(matchPosEnd);

			if (matches.length == 0) {
				return string;
			}
			if ((arguments.length - 1) < convCount) {
				return null;
			}

			var code = null;
			var match = null;
			var i = null;

			for (i = 0; i < matches.length; i++) {

				if (matches[i].code == '%') {
					substitution = '%'
				} else if (matches[i].code == 'b') {
					matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(2));
					substitution = sprintfWrapper.convert(matches[i], true);
				} else if (matches[i].code == 'c') {
					matches[i].argument = String(String.fromCharCode(parseInt(Math.abs(parseInt(matches[i].argument)))));
					substitution = sprintfWrapper.convert(matches[i], true);
				} else if (matches[i].code == 'd') {
					matches[i].argument = String(Math.abs(parseInt(matches[i].argument)));
					substitution = sprintfWrapper.convert(matches[i]);
				} else if (matches[i].code == 'f') {
					matches[i].argument = String(Math.abs(parseFloat(matches[i].argument)).toFixed(matches[i].precision ? matches[i].precision : 6));
					substitution = sprintfWrapper.convert(matches[i]);
				} else if (matches[i].code == 'o') {
					matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(8));
					substitution = sprintfWrapper.convert(matches[i]);
				} else if (matches[i].code == 's') {
					matches[i].argument = matches[i].argument.substring(0, matches[i].precision ? matches[i].precision : matches[i].argument.length)
					substitution = sprintfWrapper.convert(matches[i], true);
				} else if (matches[i].code == 'x') {
					matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(16));
					substitution = sprintfWrapper.convert(matches[i]);
				} else if (matches[i].code == 'X') {
					matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(16));
					substitution = sprintfWrapper.convert(matches[i]).toUpperCase();
				} else {
					substitution = matches[i].match;
				}

				newString += strings[i];
				newString += substitution;

			}
			newString += strings[i];

			return newString;

		},

		convert: function (match, nosign) {
			if (nosign) {
				match.sign = '';
			} else {
				match.sign = match.negative ? '-' : match.sign;
			}
			var l = match.min - match.argument.length + 1 - match.sign.length;
			var pad = new Array(l < 0 ? 0 : l).join(match.pad);
			if (!match.left) {
				if (match.pad == "0" || nosign) {
					return match.sign + pad + match.argument;
				} else {
					return pad + match.sign + match.argument;
				}
			} else {
				if (match.pad == "0" || nosign) {
					return match.sign + match.argument + pad.replace(/0/g, ' ');
				} else {
					return match.sign + match.argument + pad;
				}
			}
		}
	}

	self.sprintf = sprintfWrapper.init;	
	
	return self;
}