Zend_Markup Parsers | Zend_Markup Programmer's Reference Guide | Zend_Measure

# Zend_Markup Renderers

Zend_Markup is currently shipped with one renderer, the HTML renderer.

# Adding your own markups

By adding your own markups, you can add your own functionality to the Zend_Markup renderers. With the markup structure, you can add about any functionality you want. From simple markups, to complicated markup structures. A simple example for a 'foo' markup:

1. // Creates instance of Zend_Markup_Renderer_Html,
2. // with Zend_Markup_Parser_BbCode as its parser
3. $bbcode = Zend_Markup::factory('Bbcode');
5. // this will create a simple 'foo' markup
6. // The first parameter defines the markup's name.
7. // The second parameter takes an integer that defines the markups type.
8. // The third parameter is an array that defines other things about a
9. // markup, like the markup's group, and (in this case) a start and end markup.
10. $bbcode->addMarkup(
11. 'foo',
12. Zend_Markup_Renderer_RendererAbstract::TYPE_REPLACE,
13. array (
14. 'start' => '-bar-',
15. 'end' => '-baz-',
16. 'group' => 'inline'
17. )
18. );
20. // now, this will output: 'my -bar-markup-baz-'
21. echo $bbcode->render('my [foo]markup[/foo]');

Please note that creating your own markups only makes sense when your parser also supports it with a markup structure. Currently, only BBCode supports this. Textile doesn't have support for custom markups.

Some renderers (like the HTML renderer) also have support for a 'markup' parameter. This replaces the 'start' and 'end' parameters, and it renders the markups including some default attributes and the closing markup.

# Add a callback markup

By adding a callback markup, you can do a lot more then just a simple replace of the markups. For instance, you can change the contents, use the parameters to influence the output etc.

A callback is a class that implements the Zend_Markup_Renderer_TokenInterface interface. An example of a callback class:

1. class My_Markup_Renderer_Html_Upper
2. implements Zend_Markup_Renderer_TokenConverterInterface
3. {
5. public function convert(Zend_Markup_Token $token, $text)
6. {
7. return '!up!' . strtoupper ($text) . '!up!';
8. }
10. }

Now you can add the 'upper' markup, with as callback, an instance of the My_Markup_Renderer_Html_Upper class. A simple example:

1. // Creates instance of Zend_Markup_Renderer_Html,
2. // with Zend_Markup_Parser_BbCode as its parser
3. $bbcode = Zend_Markup::factory('Bbcode');
5. // this will create a simple 'foo' markup
6. // The first parameter defines the markup's name.
7. // The second parameter takes an integer that defines the markups type.
8. // The third parameter is an array that defines other things about a
9. // markup, like the markup's group, and (in this case) a start and end markup.
10. $bbcode->addMarkup(
11. 'upper',
12. Zend_Markup_Renderer_RendererAbstract::TYPE_CALLBACK,
13. array (
14. 'callback' => new My_Markup_Renderer_Html_Upper(),
15. 'group' => 'inline'
16. )
17. );
19. // now, this will output: 'my !up!MARKUP!up!'
20. echo $bbcode->render('my [upper]markup[/upper]');

# List of markups

List of markups
Sample input (bbcode) | Sample output
--- | ---
[b]foo[/b] | <strong>foo</strong>
[i]foo[/i] | <em>foo</em>
[cite]foo[/cite] | <cite>foo</cite>
[del]foo[/del] | <del>foo</del>
[ins]foo[/ins] | <ins>foo</ins>
[sup]foo[/sup] | <sup>foo</sup>
[sub]foo[/sub] | <sub>foo</sub>
[span]foo[/span] | <span>foo</span>
[acronym title="PHP Hypertext Preprocessor]PHP[/acronym] | <acronym title="PHP Hypertext Preprocessor">PHP</acronym>
[url=http://framework.zend.com/]Zend Framework[/url] | <a href="http://framework.zend.com/">Zend Framework</a>
[h1]foobar[/h1] | <h1>foobar</h1>
[img]http://framework.zend.com/images/logo.gif[/img] | <img src="http://framework.zend.com/images/logo.gif" />

Zend_Markup Parsers | Zend_Markup Programmer's Reference Guide | Zend_Measure