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XHTML Example by Example

July 15, 2009 by Roy Johnson

convert from HTML to XHTML in easy stages

This book demonstrates how XHTML bridges the gap between yesterday’s HTML-based Web pages and tomorrow’s more sophisticated XML-based applications. The authors (including W3C guru Dave Raggett) start with a brief account of why XHTML has come to replace HTML. They include detailed coverage of the latest style sheets plus forms and scripts to create pages with ‘smart’ capabilities. One useful feature of the book is that there’s a summary list of relevant URLs at the end of each chapter – as well as an immensely heartening selection of free and shareware development tools listed amongst the appendices.

XHTML Example by ExampleThese include Raggett’s own program ‘HTML Tidy’, which will automatically convert HTML to XHTML. All stages of coding are spelt out and explained in almost relentless detail. You will be in no doubt where you’re up to with XHTML after reading this book. It’s suitable for experienced HTML coders and new Web developers alike into the state-of-the-art XHTML world

As the title implies, the information is presented through examples. The code in question is highlighted in blue for quick comprehension. Unlike some tutorials, however, the code examples are accompanied by plenty of explanation for a well-rounded learning experience.

As the book progresses gradually into the more sophisticated elements of XHTML, it explains the differences between HTML and XHTML and defines key terminology.

You’ll get a feel for rich media formats like MPEG-4, SMIL and SVG, plus some pointers to valuable tools for authoring this advanced content.

An appendix includes detailed information on XHTML development tools such as tag editors, validators and converters to get your code from HTML to XHTML.

XHTML has the accessibility of HTML and the power of XML. This title provides an example-based introduction to the XHTML language. It contains practical techniques and tips for the developer to get started.

© Roy Johnson 2002

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Aaron E. Walsh and Dave Raggett, XHTML Example by Example, Upper Saddle River NJ: Prentice Hall, 2002, pp.745, ISBN: 013040005X


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Filed Under: HTML-XML-CSS Tagged With: Computers, Technology, Web design, XHTML, XHTML Example by Example

XML Hacks

June 18, 2009 by Roy Johnson

one hundred industrial-strength tips and tools

XML is everywhere today – from web pages to mobile phone messages and automatic feeds from blog sites. On the surface it’s simplicity itself: just put everything between tags. But as Michael Fitzgerald admits here in this excellent new guide XML Hacks, once you get below that surface it’s complex stuff. Fortunately, his approach simplifies matters by splitting up his explanations of how to get the best from XML into easily digestible chunks.

XML Hacks Each explication or hack covers a single topic, and each one is followed by suggestions for further reading, free downloadable resources, and web links to either specifications or other tutorials on the topic. And all the working examples he discusses can be downloaded free from the book’s own web site – which is a very good idea.

He starts off by explaining the basic structure of an XML document and how its content can be displayed in a browser using style sheets. There’s also a brief discussion of the free tools available for XML editing, and where to find validators to check your results. I liked the fact that the outcome for each new line of coding is shown in a screenshot, so you can see what you are doing at each stage.

It’s assumed that you may wish to convert existing data into XML format, so there’s plenty of advice on using a whole range of conversion tools, and even the latest version of Microsoft Word.

Every now and then you’ve got to be prepared for some of the abstract language in which these explanations are often expressed

XML has a concept of a document entity, which is a starting point for an XML processor. A document entity, from one standpoint, may exist in a file with an associated name. However, from the standpoint of the XML spec, a document entity does not have a name and might be an input stream that has no means of identification at all.

Fortunately, each separate topic is given a difficult rating – beginners, intermediate, or expert – so you can pick your way through at whatever level suits you best.

He includes discussion of new features in the XML spec which were still being ratified by the W3C consortium whilst the book was being written. You couldn’t get much more up to date than this.

As the book progresses he gets into the more advanced features of XPointer and XSLT (Extensible Stylesheet Language). These made my brain hurt, but are obviously useful for transforming documents from one form into another.

The examples range from generating PDFs and spreadsheets from XML documents, to grabbing data out of your iTunes Library files, and even generating scalable vector graphics (SVGs).

After XML Schemas, Relax NG, DTDs, Trang.jar, and XForms, it was something of a relief to reach a practical application I could understand – syndicating the content of blogs and web sites using RSS (really Simple Syndication). This describes the available software for receiving news feeds and for creating documents which can be sent for syndication. There’s also a nifty freeware program for adding other people’s syndicated news to your own site.

He ends with some advanced hacks featuring programs such as Cocoon, Ant, Wikis, SAX, and Genx. The mind boggles. Well, mine does anyway.

As you can probably tell, there is something here for everybody – from beginners (where I felt reasonably comfortable) to intermediate (something of an aspiration) and advanced (which I imagine will remain terra incognita to me for some time to come).

© Roy Johnson 2004

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Michael Fitzgerald, XML Hacks, Sebastopol, CA: O’Reilly, 2004, pp.460, ISBN: 0596007116


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Filed Under: HTML-XML-CSS Tagged With: Computers, Technology, Web design, XML, XML Hacks

XML, HTML, XHTML Magic

June 27, 2009 by Roy Johnson

practical web design tutorials using XHTML

Most books on web design cover coding and leave it to the reader to figure out how to use it in real-life projects. This book uses real practical projects as the context for understanding how to implement XML, HTML, and XHTML coding. It kicks off with a brief survey of where HTML and XML are up to at the moment. This includes the need for cascading style sheets. There then follows a series of applied case studies. Each chapter deals with a separate ‘project’ – a series of web sites with different purposes. These range from personal sites and blogs to weekly news sites, community sites with feedback, and even information sites driven from databases.

XML HTML XHTMLThis is what I would call an intermediate level book. It assumes you already know HTML, and is introducing you to the next stage of style sheets and XHTML. It certainly shows you the important coding details. That’s to the book’s credit. The opening example of setting up a daily news site is an excellent tutorial in creating a multi-column table.

The contributors also show how to design pages which combine XHTML and Javascripts, how to control text within table cells, and how to produce printer-friendly versions of pages. They also show how to combine static and dynamic elements within the same table – allowing it to flow and expand to fit the screen. Clever stuff.

This book might have been called ‘Designing with Style Sheets’ – because that’s where most of its emphasis lies. In fact there is very little on XML. But then XML is the easy part: it’s controlling the appearance of what appears on screen that’s difficult.

This book will appeal to people who are comfortable with HTML basics, but who want to go further and explore what XHTML has to offer. The structure of offering eleven tutorials gives you the opportunity to either select one similar to your own web project, or to work your way through from beginning to end.

© Roy Johnson 2002

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Molly E. Holzschlag (ed), XML, HTML, XHTML Magic, Indianapolis (IN): New Riders, 2001, pp.223,ISBN 0735711399


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Filed Under: HTML-XML-CSS, Web design Tagged With: HTML, Technology, Web design, XHTML, XML

YouTube: an insider’s guide

July 3, 2009 by Roy Johnson

an insider’s guide to climbing the charts

YouTube didn’t start until 2005, but now it’s mainstream New Media. Why? Because it allows small time punters like you and me to upload video clips which – if they’re interesting enough – will be watched by millions of viewers. And that, if you work the system right, can be converted into a generated income. YouTube has gone from hobbyist niche to big business in just a few years. It was so successful, Google snapped it up for a cool $1.6 billion a year later, and now everyone from hobbyists and amateur daydreamers to semi-professional film makers is posting stuff up there – at the rate of ten hours of video every minute.

YouTube: an insider's guide If you’re not used to searching for stuff on YouTube, you’ll be amazed at the variety. There’s everything from instructional how-to films, reviews of new products, personal diaries, stand-up comedians, and extracts from movies, to recordings of live theatre and musical concerts. This is a book of technical guidance written by two insiders (or ‘Tubers as they call themselves) showing you how it’s done. They make their purpose very clear right from the start:

You don’t need money or corporate backing to go viral. You simply need a very good, or very bad, video and the know-how to get viewers to your video – both of which you will learn how to do in this book.

After a quick introduction they pitch straight into the main issue of how to make good short films – which is the very basic issue of storytelling. And the emphasis is on brevity. Your maximum upload is only ten minutes, but if you can’t make your point in two you’re dead.

Sometimes people get lucky and video their pet kitten just as it falls of a table chasing a fly, or they might capture a car just after the driver has turned up a one-way street. But these are just one-offs. This book assumes that you want to make regular short films until one gets you into the most-watched slot.

Actually, most of the instruction is already in the form of YouTube visual content. There are lots of clips available showing you how to direct and edit films. They also realistically assume that you want to do all this with minimum expense. That’s not a problem. You use yourself or your friends as actors, and you only need a cheap digital video camera. In fact professional film makers such as Mike Figgis and David Lynch already use them for creating full length feature films.

There’s also advice on microphones, lighting, props, background music, and of course editing. Then once you’ve got something to share, they show you how to create your own channel (profile) on YouTube, and how to customise it and start attracting viewers.

There’s a good chapter explaining the significance and differences between fair use, copyright, parody, remixes, and mashups – then on to the all important business of generating an audience. This can go from responding to visitor comments and participating in user groups and collaborative video projects, to all sorts of semi-legal and downright illegal hacks which can result in your account being suspended. YouTube does its best to make the popularity figures genuine for the materials it hosts.

The logical extension of all this is making money from your work – monetization if you want to use the current jargon. This can be done via YouTube’s partnership program or by running Google Ads. And finally, although they remain loyal ‘Tubers throughout, they end up by showing lots of alternative outlets where you can make your work available. There are also interviews with successful YouTubers who have gone viral and even landed jobs as the result of a two-minute spoof of some TV ad or pop promo.

© Roy Johnson 2008

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Alan Lastufka and Michael W. Dean, YouTube: an insider’s guide to climbing the charts, Sebastopol (CA): O’Reilly, 2008, pp.281, ISBN: 0596521146


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Filed Under: Computers, Media, Publishing Tagged With: Communication, e-Commerce, Media, Publishing, Technology, YouTube

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