By Sas Jacobs
XML has been round for a few years, so what makes this ebook diversified? good, many of the rivals in the market are huge tomes; this booklet assumes a distinct process, exhibiting so you might supply the reader all they should comprehend to hit the floor working, with no making them trawl via countless numbers of pages of syntax. The ebook additionally supplies the main updated photo of the topic—XML help within the newest net browsers, growing XML-driven purposes utilizing the main models of internet criteria and server-side languages, together with CSS 2.1/3, DOM, XSLT and XPath 2, personal home page five, ASP.NET 2, and plenty of extra. eventually, the booklet presents an creation to Ajax-style programming, that's an important subject for contemporary net builders to appreciate. XML is center to Ajax, so an knowing of it's crucial while studying tips on how to application Ajax performance. This e-book hence presents a superb stepping stone for readers wishing to take this course.
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Additional info for Beginning XML with DOM and Ajax: From Novice to Professional (Beginning: From Novice to Professional)
I’ve mentioned XPath during this discussion of XSLT, so it’s worthwhile exploring it in a little more detail. XPath You saw that the XSLT stylesheet relied heavily on the use of XPath to locate specific parts of the source XML document tree. Other recommendations, such as XPointer, also rely on the XPath specification, so it’s useful to have an understanding of the basics. One important thing to realize is that XPath doesn’t use XML rules to construct expressions. You use XPath by writing expressions that work with the XML document tree.
This means that the element definition is available for use anywhere within the XML schema. You might reuse the element declaration at different places within the schema document. Global elements can also be the document element of a valid document instance. The definition includes the following:
Table 1-1. Character Entities Used in XML Documents Character Entity & & ' ' > > < < " " 15 16 CHAPTER 1 ■ INTRODUCTION TO XML Sometimes you can’t include a literal character in an XML document, perhaps because the character doesn’t exist on a keyboard or because it’s a graphic character. Instead, you can add these as character entities using Unicode or hexadecimal numbers. For example, you can encode the copyright symbol © as © or ©. If the reference starts with and ends with a semicolon, it’s a character reference.
Beginning XML with DOM and Ajax: From Novice to Professional (Beginning: From Novice to Professional) by Sas Jacobs