HTMLPurifier_AttrDef_HTML_Pixels Class Reference

Validates an integer representation of pixels according to the HTML spec. More...

Inheritance diagram for HTMLPurifier_AttrDef_HTML_Pixels:

Collaboration diagram for HTMLPurifier_AttrDef_HTML_Pixels:

Public Member Functions
	__construct ($max=null)
	validate ($string, $config, $context)
	make ($string)
Public Member Functions inherited from HTMLPurifier_AttrDef
	validate ($string, $config, $context)
	Validates and cleans passed string according to a definition. More...
	parseCDATA ($string)
	Convenience method that parses a string as if it were CDATA. More...
	make ($string)
	Factory method for creating this class from a string. More...

Protected Attributes
	$max

Additional Inherited Members
Data Fields inherited from HTMLPurifier_AttrDef
	$minimized = false
	Tells us whether or not an HTML attribute is minimized. More...
	$required = false
	Tells us whether or not an HTML attribute is required. More...
Protected Member Functions inherited from HTMLPurifier_AttrDef
	mungeRgb ($string)
	Removes spaces from rgb(0, 0, 0) so that shorthand CSS properties work properly. More...
	expandCSSEscape ($string)
	Parses a possibly escaped CSS string and returns the "pure" version of it. More...

Detailed Description

Validates an integer representation of pixels according to the HTML spec.

Definition at line 6 of file Pixels.php.

Constructor & Destructor Documentation

__construct()

HTMLPurifier_AttrDef_HTML_Pixels::__construct

(

$max = null

)

Definition at line 11 of file Pixels.php.

References $max.

                                             {
        $this->max = $max;
    }

Member Function Documentation

make()

HTMLPurifier_AttrDef_HTML_Pixels::make

(

$string

)

Definition at line 39 of file Pixels.php.

References $max.

                                  {
        if ($string === '') $max = null;
        else $max = (int) $string;
        $class = get_class($this);
        return new $class($max);
    }

validate()

HTMLPurifier_AttrDef_HTML_Pixels::validate	(		$string,
			$config,
			$context
	)

Definition at line 15 of file Pixels.php.

References $max.

                                                         {

        $string = trim($string);
        if ($string === '0') return $string;
        if ($string === '')  return false;
        $length = strlen($string);
        if (substr($string, $length - 2) == 'px') {
            $string = substr($string, 0, $length - 2);
        }
        if (!is_numeric($string)) return false;
        $int = (int) $string;

        if ($int < 0) return '0';

        // upper-bound value, extremely high values can
        // crash operating systems, see <http://ha.ckers.org/imagecrash.html>
        // WARNING, above link WILL crash you if you're using Windows

        if ($this->max !== null && $int > $this->max) return (string) $this->max;

        return (string) $int;

    }

Field Documentation

$max

HTMLPurifier_AttrDef_HTML_Pixels::$max

protected

Definition at line 9 of file Pixels.php.

Referenced by __construct(), make(), and validate().

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

• Services/Html/HtmlPurifier/library/HTMLPurifier/AttrDef/HTML/Pixels.php