110 lines
2.6 KiB
JavaScript
110 lines
2.6 KiB
JavaScript
/* -*- mode: JavaScript; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* Copyright 2010-2013 Will Scullin <scullin@scullinsteel.com>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation. No representations are made about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*/
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/*jshint rhino:true, browser: true, devel: true */
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/*exported allocMem, allocMemPages, debug, toHex, toBinary, extend, gup, hup, each */
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if (!Date.now) {
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Date.now = function now() {
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return new Date().getTime();
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};
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}
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var hex_digits = "0123456789ABCDEF";
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var bin_digits = "01";
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function allocMem(size) {
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var result;
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if (window.Uint8Array) {
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result = new Uint8Array(size);
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} else {
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result = new Array(size);
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}
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return result;
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}
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function allocMemPages(pages) {
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return allocMem(pages * 0x100);
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}
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function extend(ary1, ary2) {
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ary2.forEach(function(val) {
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ary1.push(val);
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});
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return ary1;
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}
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function debug(msg) {
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if (typeof(console) != 'undefined' && 'log' in console) {
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console.log(msg);
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} else if (typeof(environment) == 'object') { // rhino shell
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print(msg);
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}
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}
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function toHex(v, n) {
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if (!n) {
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n = v < 256 ? 2 : 4;
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}
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var result = "";
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for (var idx = 0; idx < n; idx++) {
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result = hex_digits[v & 0x0f] + result;
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v >>= 4;
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}
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return result;
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}
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function toBinary(v) {
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var result = "";
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for (var idx = 0; idx < 8; idx++) {
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result = bin_digits[v & 0x01] + result;
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v >>= 1;
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}
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return result;
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}
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// From http://www.netlobo.com/url_query_string_javascript.html
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function gup( name )
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{
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name = name.replace(/[\[]/,"\\[").replace(/[\]]/,"\\]");
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var regexS = "[\\?&]"+name+"=([^&#]*)";
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var regex = new RegExp( regexS );
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var results = regex.exec( window.location.href );
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if( !results )
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return "";
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else
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return results[1];
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}
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function hup() {
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var regex = new RegExp("#(.*)");
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var results = regex.exec(window.location.hash);
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if ( !results )
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return "";
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else
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return results[1];
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}
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function keys(obj) {
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var result = [];
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for (var key in obj) {
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if (obj.hasOwnProperty(key)) {
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result.push(key);
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}
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}
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return result;
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}
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function each(obj, fn) {
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keys(obj).forEach(fn);
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}
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