[tt-rss.git] / lib / htmlpurifier / library / HTMLPurifier / AttrDef / HTML / MultiLength.php

<?php

/**
 * Validates a MultiLength as defined by the HTML spec.
 *
 * A multilength is either a integer (pixel count), a percentage, or
 * a relative number.
 */
class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
{

    public function validate($string, $config, $context) {

        $string = trim($string);
        if ($string === '') return false;

        $parent_result = parent::validate($string, $config, $context);
        if ($parent_result !== false) return $parent_result;

        $length = strlen($string);
        $last_char = $string[$length - 1];

        if ($last_char !== '*') return false;

        $int = substr($string, 0, $length - 1);

        if ($int == '') return '*';
        if (!is_numeric($int)) return false;

        $int = (int) $int;

        if ($int < 0) return false;
        if ($int == 0) return '0';
        if ($int == 1) return '*';
        return ((string) $int) . '*';

    }

}

// vim: et sw=4 sts=4
Commit	Line	Data
f45a286b AD	1	<?php
	2
	3	/**
	4	* Validates a MultiLength as defined by the HTML spec.
	5	*
	6	* A multilength is either a integer (pixel count), a percentage, or
	7	* a relative number.
	8	*/
	9	class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
	10	{
	11
	12	public function validate($string, $config, $context) {
	13
	14	$string = trim($string);
	15	if ($string === '') return false;
	16
	17	$parent_result = parent::validate($string, $config, $context);
	18	if ($parent_result !== false) return $parent_result;
	19
	20	$length = strlen($string);
	21	$last_char = $string[$length - 1];
	22
	23	if ($last_char !== '*') return false;
	24
	25	$int = substr($string, 0, $length - 1);
	26
	27	if ($int == '') return '*';
	28	if (!is_numeric($int)) return false;
	29
	30	$int = (int) $int;
	31
	32	if ($int < 0) return false;
	33	if ($int == 0) return '0';
	34	if ($int == 1) return '*';
	35	return ((string) $int) . '*';
	36
	37	}
	38
	39	}
	40
	41	// vim: et sw=4 sts=4