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Introduction to XSL XSL-BASIC ELEMENTS. Transforming XML XSL file 1 XSLT Processor WML fileXSL file 2HTML fileXML file Contenuto Forma Documento.

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Presentation on theme: "Introduction to XSL XSL-BASIC ELEMENTS. Transforming XML XSL file 1 XSLT Processor WML fileXSL file 2HTML fileXML file Contenuto Forma Documento."— Presentation transcript:

1 Introduction to XSL XSL-BASIC ELEMENTS

2 Transforming XML XSL file 1 XSLT Processor WML fileXSL file 2HTML fileXML file Contenuto Forma Documento

3 Test Page What you see is what you get! HANDS ON! - Esempio1 XML

4 HANDS ON! - Esempio1 XSL a

5 HANDS ON! - Esempio1 XSL b

6 Let us use the Apache XSLT processor: Xalan. 1) Get Xalan from xml.apache.org/xalan/index.html 2 )Set CLASSPATH=%CLASSPATH%;…/xalan.jar;…/xerces.jar 3) java org.apache.xalan.xslt.Process –IN testPage.xml –XSL testPage.xsl –O out.html HANDS ON! - Esempio1 Xalan

7 Test Page What you see is what you get! HANDS ON! - Esempio1 Output HTML

8 The process starts by traversing the document tree, attempting to find a single matching rule for each visited node. Once the rule is found, the body of the rule is istantiated Further processing is specified with the. The nodes to process are specified in the match attribute. If the attribute is omitted, it continues with the next element that it has a matching template. The process

9 Implicit rules

10 Selective processing

11 SEZIONE RISERVATA: Testo Privato SEZIONE PUBBLICA Testo Pubblico Selective processing - example

12 Esiste una parte privata Esiste una parte pubblica La parte pubblica contiene: OUTPUT Esiste una parte privata La parte pubblica contiene: SEZIONE PUBBLICA Testo Pubblico Selective processing - example

13 / matches the root node A matches any element * matches any element A|B matches any or element A/B matches any element within a element A//B matches any element with a ancestor text() matches any text node Pattern Matching - nodes

14 id(pippo) matches the element with unique ID pippo A[1] matches any element that is the first child of its parent A[last()=1] matches any element that is the last child of its parent B/A[position() mod 2 = 1] matches any element that is an odd- numbered child of its B parent Pattern Matching

15 @A matches any A matches any attribute matches any element that has a ancestor with a A attribute with v value processing-instruction() node() Pattern Matching - attributes

16 IMPORT PRIORITIES (default 1) When priorities are equal, the last definition wins STRIPPING SPACES ... Imports, priorities and spaces

17 rosso … Il colore e:. Sequence of text and tags … default Sequence of text and tags, including … 3 Variables, templates and parameters Once a value has been assigned to a variable, it cannot be changed

18 conditions

19 some rule for-each

20 Pluto Topolino Pippo Sorting

21 Pluto Topolino Pippo Numbering

22 First section of chapter 1 … Numbering


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