Xml And Xslt Tutorial Pdf
Most of the string functions are for manipulating strings rather than testing them, with the exception of the contains function. The format is definitely closer to what you want now. In other words, is this the second recipe in the list? And now you have the flexibility to specifically display more quantities, or to adapt for other cases.
Notice that the function call includes the namespace prefix. Note that because all of the residence rules, you could have achieved the same thing with an include. If you apply templates to an element and there are no templates to apply, the data simply will not appear.
Another common task you will run into is the need to select an attribute for a particular element. Notice that the ingredients were multiplied by the number of servings, as expected.
The value-of elements tell the processor to insert a particular piece of data in that location. The first is the use of extension elements. Because the purpose of importing a stylesheet is to give yourself the option to override any templates that are part of the import.
Before you start
You can also look for specific values. It then looks for an ingredients template, and when it finds it, it outputs that template.
The text returned by the method gets added to the output in place of the extension element. For a simple use case such as the one presented in this article, you do not need such extension instructions. The database also has a full-text index based on Apache Lucene. True, there's not much reason to do such a calculation, but it's the only numeric value in the sample document.
Notice that rather than simply outputting the value-of element, you are now telling the stylesheet to apply any applicable templates to the ingredients and instructions elements. To see the results of the actual transformation, you need to perform the transformation and create an output file.
Some of them relate to the nodes themselves, such as those that look at position, some of them manipulate strings, some relate to numbers, such as sums, and some relate to boolean values. So far everything you looked at brings you down the hierarchical tree, but you also have the option to go up by selecting the parent of a particular node. The concepts are likely similar for other processors, but you will have to check your documentation for specifics.
You told the processor to apply any applicable templates to the ingredients element, but you don't have a template specifically for that element. Fortunately, you can create more specific templates to output the data in the form in which you want it. Exceptions do exist, however. But that's not what you want.
All right, the format is closer to what you want, but you still need to display the actual information. Shouldn't they appear in the output? The first thing that you can do is to use conditional processing so that you only display the message if it's needed in the first place.
The method itself receives two arguments, one of which you actually use. Another variation on the stylesheet involves its structure. You can also use the text element to add any arbitrary text to the template. Most stylesheets do not use the very simple form you just saw in the previous section.
In this tutorial, you'll look at these relationships, called axes. It's not unusual, however, to run into a situation which requires that you to be more specific. For example, if you want to display the instructions, net performance testing and optimization pdf you need to know how to reference them. You've already looked at the position function and how that works.
Publishing XML data in HTML and PDF using a single XSLT stylesheet
This is the same with the instructions, except that they're simply output directly. However, if you look more carefully, you will see that the extension element did not process properly, taking a variable as a string rather than as the value of the variable itself.
This becomes important when you want to select a node relative to the context node. Perhaps the most useful is the not function, which can be used to tell if a particular node does not exist. Notice that you send the processor in search of templates for the ingredients and instructions elements, for which none are seen in this file. Finally, you'll look at functions, which take that power one step further by enabling much of the same types of logic you might write into a procedural program. Remember, that's text, not elements such as the line break.
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