Wiley 978-0-7645-4986-1 Datenblatt

An Eagle’s EyeView of XMLThis chapter introduces you to XML, the ExtensibleMarkup Language. It explains, in general terms, whatXML is and how it is us

12Part I ✦ Introducing XMLCSSBecause XML allows arbitrary tags in a document, the browser has no way to knowin advance how each element should be disp

13Chapter 1 ✦ An Eagle’s Eye View of XMLA CSS style sheet can only change the format of a particular element, and it canonly do so on an element-wide

14Part I ✦ Introducing XMLAlthough URLs are well understood and well supported, the XML specification usesthe more general Uniform Resource Identifier

15Chapter 1 ✦ An Eagle’s Eye View of XMLXLinks are discussed in Chapter 17.XPointers allow links to point not just to a particular document at a parti

16Part I ✦ Introducing XMLAmong other things, an XML document may contain hypertext links to other docu-ments and resources. These links are created a

4Part I ✦ Introducing XMLXML, however, is a meta-markup language. It’s a language that lets you make up thetags you need as you go along. These tags m

5Chapter 1 ✦ An Eagle’s Eye View of XMLXML describes structure and semantics, not formattingXML markup describes a document’s structure and meaning. I

6Part I ✦ Introducing XMLXML markup also makes it easier for nonhuman automated computer software tolocate all of the songs in the document. A compute

7Chapter 1 ✦ An Eagle’s Eye View of XMLSelf-describing dataMuch computer data from the last 40 years is lost, not because of natural disaster ordecayi

8Part I ✦ Introducing XMLInterchange of data among applicationsBecause XML is nonproprietary and easy to read and write, it’s an excellent formatfor t

9Chapter 1 ✦ An Eagle’s Eye View of XMLXML also provides a client-side include mechanism that integrates data from multiplesources and displays it as

10Part I ✦ Introducing XMLIn any case, the editor or other program creates an XML document. More often thannot, this document is an actual file on som

11Chapter 1 ✦ An Eagle’s Eye View of XMLHTML is also somewhat independent of the programs that read and write it, but it’sreally only suitable for bro