DZone Snippets: read code http://snippets.dzone.com/posts Sun, 27 Jul 2008 08:30:05 GMT DZone Snippets: read code Reading an XML file using JavaScript http://snippets.dzone.com/posts/show/5091 Reads an xml file using JavaScript from a web page. Files used: loadxml.js (main script), readxml.js (client script), and readxml.html. The code for loadxml.js was copied from the article <a href="http://www.devarticles.com/c/a/JavaScript/JavaScript-and-XML/">JavaScript and XML</a> [devarticles.com] <br /> <br />file: loadxml.js <br /><code> <br /> XML.load = function(url) { <br /> var xmldoc = XML.newDocument(); <br /> xmldoc.async = false; <br /> xmldoc.load(url); <br /> return xmldoc; <br /> }; <br /> <br /> <br />XML.newDocument = function(rootTagName, namespaceURL) { <br /> if (!rootTagName) rootTagName = ""; <br /> if (!namespaceURL) namespaceURL = ""; <br /> <br /> if (document.implementation && document.implementation.createDocument) { <br /> // This is the W3C standard way to do it <br /> return document.implementation.createDocument(namespaceURL, <br /> rootTagName, null); <br /> } <br /> else { // This is the IE way to do it <br /> // Create an empty document as an ActiveX object <br /> // If there is no root element, this is all we have to do <br /> var doc = new ActiveXObject("MSXML2.DOMDocument"); <br /> <br /> // If there is a root tag, initialize the document <br /> if (rootTagName) { <br /> // Look for a namespace prefix <br /> var prefix = ""; <br /> var tagname = rootTagName; <br /> var p = rootTagName.indexOf(':'); <br /> if (p != -1) { <br /> prefix = rootTagName.substring(0, p); <br /> tagname = rootTagName.substring(p+1); <br /> } <br /> <br /> // If we have a namespace, we must have a namespace prefix <br /> // If we don't have a namespace, we discard any prefix <br /> if (namespaceURL) { <br /> if (!prefix) prefix = "a0"; // What Firefox uses <br /> } <br /> else prefix = ""; <br /> <br /> // Create the root element (with optional namespace) as a <br /> // string of text <br /> var text = "<" + (prefix?(prefix+":"):"") + tagname + <br /> (namespaceURL <br /> ?(" xmlns:" + prefix + '="' + namespaceURL +'"') <br /> :"") + <br /> "/>"; <br /> // And parse that text into the empty document <br /> doc.loadXML(text); <br /> } <br /> return doc; <br /> } <br />}; <br /></code> <br /> <br />file: readxml.js <br /><code> <br />function readXmlFile() { <br /> url = 'http://rorbuilder.info/pl/test123'; <br /> <br /> doc = XML.load(url); <br /> alert(doc.documentElement.firstChild.nextSibling.firstChild.nodeValue); <br />} <br /></code> <br /> <br />file: readxml.html <br /><code> <br /><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" <br /> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <br /><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <br /> <head> <br /> <title>Read an XML file</title> <br /> <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> <br /> <script type="text/javascript" src="js/loadxml.js"/> <br /> <script type="text/javascript" src="js/readxml.js"/> <br /> </head> <br /> <br /> <body> <br /> <h1>ReadXML</h1> <br /> <p> <br /> If all goes well you should see an alert box display the message 'testing 123' <br /> </p> <br /> <p>Press the 'go' button to read the xml file '<a href="test123">test123</a>' <br /> from the web server. <br /> <input type="button" onclick="readXmlFile()" value="go"/> <br /> </p> <br /> <br /> <br /> </body> <br /></html> <br /></code> <br /> <br />Note: To avoid the cross-site security error message 'permission denied', store all the files on the same web server. <br /> <br />To test the above code try out the <a href="http://rorbuilder.info/pl/readxml.html" title="javascript xml demo">demo to read the xml file</a> [rorbuilder.info]. Sat, 02 Feb 2008 22:53:27 GMT http://snippets.dzone.com/posts/show/5091 jrobertson (James Robertson) read-url-with-basic-auth http://snippets.dzone.com/posts/show/2055 <code> <br />read-url-with-basic-auth: func [url key] [ <br /> read/custom url compose/deep [ <br /> header [Authorization: (join "Basic " key)] <br /> ] <br /> <br />] <br /></code> Wed, 17 May 2006 01:49:38 GMT http://snippets.dzone.com/posts/show/2055 gregg.irwin (Gregg Irwin) load a CSV file http://snippets.dzone.com/posts/show/1281 <code> <br /> read-csv: func [ <br /> "Load and parse a delimited text file." <br /> file [file!] <br /> /with <br /> delimiter <br /> /local lines <br /> ][ <br /> if not with [delimiter: ","] <br /> lines: read/lines file <br /> forall lines [ <br /> change/only lines parse/all first lines delimiter <br /> ] <br /> ; head lines ;<- needed for View < 1.3 <br /> ] <br /></code> Mon, 23 Jan 2006 02:05:09 GMT http://snippets.dzone.com/posts/show/1281 gregg.irwin (Gregg Irwin) PHP READ TAB SEPARATED FILE http://snippets.dzone.com/posts/show/1006 // OPENS A TAB SEPARATED FILE <br />// PUTS DATA INTO AN ARRAY AND SPLITS IT BY TAB <br />// LOOPS THROUGH CODE AND PRINT <br /> <br /><code> <br /><?php <br /> <br />$filename = "Book1.txt"; <br />$fd = fopen($filename,"r"); <br />$contents = fread ($fd,filesize ($filename)); <br />fclose($fd); <br /> <br />$splitcontents = explode(" ", $contents); <br />$counter = 0; <br /> <br />foreach($splitcontents as $data){ <br /> echo $counter++; <br /> echo ": " . $data; <br /> } <br /> <br /> <br />?> <br /></code> Thu, 22 Dec 2005 12:09:47 GMT http://snippets.dzone.com/posts/show/1006 smartcookie () Reading bytes value http://snippets.dzone.com/posts/show/740 <code> <br />from struct import unpack <br />f = open('data.bin', 'rb') <br /> <br />b = f.read(1) <br />b2 = f.read(2) <br />b4 = f.read(4) <br /> <br />n = ord(b) # from char to int <br />n4 = unpack('>L', b4) # big endian <br />n4 = unpack('<L', b4) # little endian <br />n = unpack('>h', b2) # big endian short <br /></code> Sun, 18 Sep 2005 14:45:23 GMT http://snippets.dzone.com/posts/show/740 korakot (Korakot Chaovavanich)