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
	int More...

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

)

Parameters

int

$max

Definition at line 17 of file Pixels.php.

References $max.

    {
        $this->max = $max;
    }

Member Function Documentation

make()

HTMLPurifier_AttrDef_HTML_Pixels::make

(

$string

)

Parameters

string

$string

Returns

HTMLPurifier_AttrDef

Definition at line 64 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
	)

Parameters

string	$string
HTMLPurifier_Config	$config
HTMLPurifier_Context	$context

Returns

bool|string

Definition at line 28 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

int

Definition at line 12 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