daux.io/docs/10_For_Developers/Creating_a_Processor.md

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2015-07-21 09:49:49 +02:00
The recommended way to extend Daux is through Processors.
The main advantage, is that you can run it with the source or with `daux.phar` independently. You don't need to hack in the core.
## Adding classes
At the same level as your `daux.phar` file, you will see a `daux` directory, you can create all your classes here.
The classes must respect the PSR-4 Naming convention. And have `\Todaymade\Daux\Extension` as a base namespace.
By default, we created a `daux/Processor.php` file to get you started.
## A quick test ?
For the example we're just going to dump the tree and exit.
```php
public function manipulateTree(Root $root)
{
print_r($root->dump());
exit;
}
```
also, add this at the beginning of the file:
```php
use Todaymade\Daux\Tree\Root;
```
Let's just try if it works by running `./generate --processor=Processor`
Yes, you get a big array dump! You're good to go.
## What can I achieve ?
There are a few methods that you can override to add some
### Change the parsed tree.
By default, Daux.io parses your directory to find pages. but, for a reason or another, you might want to programmatically add some pages.
This can be done with:
```php
public function manipulateTree(Root $root)
{
}
```
Two helpers from the class `Todaymade\Daux\Tree\Builder` will greatly help you doing that:
```php
$new = Builder::getOrCreateDir($root, 'New Pages');
$page = Builder::getOrCreatePage($new, 'index');
$page->setContent('The index page for the new folder');
$page = Builder::getOrCreatePage($new, 'A New Hope');
$page->setContent('A long time ago in a galaxy far away');
```
Both methods `getOrCreateDir` and `getOrCreatePage` take two parameters : `parent` and `title`
The page will automatically be treated as markdown and converted like a normal page.
If you create a new ContentType, like let's say LaTeX, you would set the title `My Page.tex` it will keep the title `My Page` and use your renderer.
If the extension is not mapped to a Generator, it will simply create the file as-is without manipulation.
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### Extend the Markdown Generator
You can extend the Markdown Parser in any way wou want with this method.
```php
public function extendCommonMarkEnvironment(Environment $environment)
{
}
```
See the details on [CommonMark's website](http://commonmark.thephpleague.com/customization/overview/).
### Add new generators
You can add new generators to Daux.io and use them right away, they must implement the
`\Todaymade\Daux\Format\Base\Generator` interface and if you want to use the live mode with your generator
you have to implement `\Todaymade\Daux\Format\Base\LiveGenerator`.
```php
public function addGenerators()
{
return ['custom_generator' => '\Todaymade\Daux\Extension\MyNewGenerator'];
}
```