Extract the filename from a URL

jrobertson (James Robertson) — Sun, 20 Apr 2008 15:24:54 GMT

This ECMAScript extracts the filename from a URL. eg. the filename 'index4.svg' would be extracted from the document.URL with the value 'http://rorbuilder.info/r/whiteboardqueue/index4.svg'.



var regexp = /(\w|[-.])+$/

str = document.URL

a = regexp.exec(str)

alert(a[0])

Reference: Regular Expressions: Methods - Doc JavaScript [webreference.com]

Reading an XML file using JavaScript

jrobertson (James Robertson) — Sat, 02 Feb 2008 22:53:27 GMT

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 JavaScript and XML [devarticles.com]

file: loadxml.js



  XML.load = function(url) {

    var xmldoc = XML.newDocument();

    xmldoc.async = false;  

    xmldoc.load(url);

    return xmldoc;  

  };





XML.newDocument = function(rootTagName, namespaceURL) {

    if (!rootTagName) rootTagName = "";

    if (!namespaceURL) namespaceURL = "";



    if (document.implementation && document.implementation.createDocument) {

        // This is the W3C standard way to do it

        return document.implementation.createDocument(namespaceURL, 

                       rootTagName, null);

    }

    else { // This is the IE way to do it

        // Create an empty document as an ActiveX object

        // If there is no root element, this is all we have to do

        var doc = new ActiveXObject("MSXML2.DOMDocument");



        // If there is a root tag, initialize the document

        if (rootTagName) {

            // Look for a namespace prefix

            var prefix = "";

            var tagname = rootTagName;

            var p = rootTagName.indexOf(':');

            if (p != -1) {

                prefix = rootTagName.substring(0, p);

                tagname = rootTagName.substring(p+1);

            }



            // If we have a namespace, we must have a namespace prefix

            // If we don't have a namespace, we discard any prefix

            if (namespaceURL) {

                if (!prefix) prefix = "a0"; // What Firefox uses

            }

            else prefix = "";



            // Create the root element (with optional namespace) as a

            // string of text

            var text = "<" + (prefix?(prefix+":"):"") + tagname +

                (namespaceURL

                 ?(" xmlns:" + prefix + '="' + namespaceURL +'"')

                 :"") +

                "/>";

            // And parse that text into the empty document

            doc.loadXML(text);

        }

        return doc;

    }

};

file: readxml.js



function readXmlFile() {

  url = 'http://rorbuilder.info/pl/test123';



  doc = XML.load(url);

  alert(doc.documentElement.firstChild.nextSibling.firstChild.nodeValue);

}

file: readxml.html



  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">



  

    Read an XML file

DZone Snippets: document code

Extract the filename from a URL

Reading an XML file using JavaScript