HTMLPurifier_Injector_Linkify Class Reference

Injector that converts http, https and ftp text URLs to actual links. More...

Inheritance diagram for HTMLPurifier_Injector_Linkify:

Collaboration diagram for HTMLPurifier_Injector_Linkify:

Public Member Functions
	handleText (&$token)
Public Member Functions inherited from HTMLPurifier_Injector
	rewindOffset ($offset)
	Rewind to a spot to re-perform processing. More...
	getRewindOffset ()
	Retrieves rewind offset, and then unsets it. More...
	prepare ($config, $context)
	Prepares the injector by giving it the config and context objects: this allows references to important variables to be made within the injector. More...
	checkNeeded ($config)
	This function checks if the HTML environment will work with the Injector: if p tags are not allowed, the Auto-Paragraphing injector should not be enabled. More...
	allowsElement ($name)
	Tests if the context node allows a certain element. More...
	handleText (&$token)
	Handler that is called when a text token is processed. More...
	handleElement (&$token)
	Handler that is called when a start or empty token is processed. More...
	handleEnd (&$token)
	Handler that is called when an end token is processed. More...
	notifyEnd ($token)
	Notifier that is called when an end token is processed. More...

Data Fields
	$name = 'Linkify'
	@type string More...
	$needed = array('a' => array('href'))
	@type array More...
Data Fields inherited from HTMLPurifier_Injector
	$name
	Advisory name of injector, this is for friendly error messages. More...
	$needed = array()
	Array of elements and attributes this injector creates and therefore need to be allowed by the definition. More...

Additional Inherited Members
Protected Member Functions inherited from HTMLPurifier_Injector
	forward (&$i, &$current)
	Iterator function, which starts with the next token and continues until you reach the end of the input tokens. More...
	forwardUntilEndToken (&$i, &$current, &$nesting)
	Similar to _forward, but accepts a third parameter $nesting (which should be initialized at 0) and stops when we hit the end tag for the node $this->inputIndex starts in. More...
	backward (&$i, &$current)
	Iterator function, starts with the previous token and continues until you reach the beginning of input tokens. More...
Protected Attributes inherited from HTMLPurifier_Injector
	$htmlDefinition
	@type HTMLPurifier_HTMLDefinition More...
	$currentNesting
	Reference to CurrentNesting variable in Context. More...
	$currentToken
	Reference to current token. More...
	$inputZipper
	Reference to InputZipper variable in Context. More...
	$rewindOffset = false
	Number of elements to rewind backwards (relative). More...

Detailed Description

Injector that converts http, https and ftp text URLs to actual links.

Definition at line 6 of file Linkify.php.

Member Function Documentation

handleText()

HTMLPurifier_Injector_Linkify::handleText

(

&

$token

)

Parameters

HTMLPurifier_Token

$token

Reimplemented from HTMLPurifier_Injector.

Definition at line 21 of file Linkify.php.

    {
        if (!$this->allowsElement('a')) {
            return;
        }
 
        if (strpos($token->data, '://') === false) {
            // our really quick heuristic failed, abort
            // this may not work so well if we want to match things like
            // "google.com", but then again, most people don't
            return;
        }
 
        // there is/are URL(s). Let's split the string:
        // Note: this regex is extremely permissive
        $bits = preg_split('#((?:https?|ftp)://[^\s\'",<>()]+)#Su', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
 
 
        $token = array();
 
        // $i = index
        // $c = count
        // $l = is link
        for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
            if (!$l) {
                if ($bits[$i] === '') {
                    continue;
                }
                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
            } else {
                $token[] = new HTMLPurifier_Token_Start('a', array('href' => $bits[$i]));
                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
                $token[] = new HTMLPurifier_Token_End('a');
            }
        }
    }

References $l, HTMLPurifier_Injector\allowsElement(), and PREG_SPLIT_DELIM_CAPTURE.

Here is the call graph for this function:

Field Documentation

$name

HTMLPurifier_Injector_Linkify::$name = 'Linkify'

@type string

Definition at line 11 of file Linkify.php.

$needed

HTMLPurifier_Injector_Linkify::$needed = array('a' => array('href'))

@type array

Definition at line 16 of file Linkify.php.

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The documentation for this class was generated from the following file:

• Services/Html/HtmlPurifier/library/HTMLPurifier/Injector/Linkify.php