The reworked stylesheet Recipe Ingredients: Directions: All of the information here is the same as it was before, except that the processor looks at the stylesheet and starts with the template set to match the document root, as specified by the match attribute here. On the other hand, you have a second option for including information: the import. Adding this namespace tells the processor which elements are related to processing and which elements should be simply output. Here you actually replaced a single template with two templates, which override those in the imported stylesheet see Figure 9. Now look at a way to make that easier. Transforming the document from the command line java org.
Moving the context node once more Don't worry about the extra template; it's to keep the text of the other recipe from appearing. This enables you to select the qty, unit, and food children of that element and add them to the document just as was done before with the template. So you'll have to find another way around this problem. Customer service is our top priority!. In cases, this is fine.
The results of the extension element Extension elements can be quite useful, if a little bit difficult to use. Creating templates Most stylesheets do not use the very simple form you just saw in the previous section. 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. But what if you wanted all of the recipes that were not for breakfast? Nodeset functions The nodeset-related functions help you to do things like choose a particular node based on position. For example you might want to select just the title of the recipe see Listing 18.
You have created a namespace that corresponds to the comp. Possible ex library copy, thatâ ll have the markings and stickers associated from the library. About this Item: O'Reilly Media, Incorporated. You could do that as follows:. To start with, let's talk about notation. You can see the results in Figure 6. What that means is that the first time you execute the first loop, the context node is the first ingredient element.
True, there's not much reason to do such a calculation, but it's the only numeric value in the sample document. You can also look for specific values. Add brown sugar and dill. The scaleIngredient method package com. For programmers, the book makes syntax and structures clear.
You have, for example, the ability to perform both looping and conditional operations. About this Item: O'Reilly Media, Incorporated. About this Item: O'Reilly Media, 2003. About this Item: O'Reilly Media, 2003. The results Recipe Gush'gosh Ingredients: 1poundhamburger 1poundelbow macaroni 2cupsbrown sugar 1bagchopped onions 1teaspoondried dill Directions: Brown the hamburger. Examples might be simplified to improve reading and basic understanding. An apparently unread copy in perfect condition.
A balanced breakfast Ingredients: 1 cup cereal 1 glass orange juice 1 cup milk 2 slices toast Directions: Combine cereal and milk in bowl. Recipes have been scaled for multiple portions. This is how it finds the ingredient template, in which you output the quantity, unit, food, and a line break. 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. Extension functions Another way to add functionality through the stylesheet is to use extension functions, which are a bit simpler to implement than extension elements. In fact, newcomers are often a little dazed on first contact. Thorough in its coverage of the language, the book makes few assumptions about what you may already know.
Second, the ingredients were crammed together without any spaces. Instead, you took advantage of the fact that when you told the processor to apply any applicable templates to the ingredients element, it checks not only for the ingredients element, but also for any children of the ingredients element. All books are in clear copy here, and all files are secure so don't worry about it. Now, you might notice that one very important part of making the stylesheet work is the ability to select a specific part of the document. Add brown sugar and dill. Dealing with the ingredients and instructions. About this Item: O'Reilly Media, Incorporated.
While using this site, you agree to have read and accepted our ,. The context parameter refers to the processor context, which enables you to look at elements on the extension element, but you are going to keep a simple line focusing on only the second argument, the extension element itself. Pages are intact and are not marred by notes or highlighting, but may contain a neat previous owner name. Results of numeric functions floor 42. Because you receive that element as a parameter to the method, you can extract the value of any attributes added to that element, such as servings, in this case. Like its namesake, each instance of the loop carries with it the next value in a list. The first argument is the complete string, the second is the position of the first character, and the third is the length of the string.
Because the purpose of importing a stylesheet is to give yourself the option to override any templates that are part of the import. From United Kingdom to U. You can also use the text element to add any arbitrary text to the template. This expression is only testing for the existence of a name element that is a child of the recipe element. As before, the processor sees the prefix and knows it needs to execute a call to the RecipeScaler class. Notice that you send the processor in search of templates for the ingredients and instructions elements, for which none are seen in this file.