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

<?php

/**
 * Validates the HTML type length (not to be confused with CSS's length).
 *
 * This accepts integer pixels or percentages as lengths for certain
 * HTML attributes.
 */

class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
{

    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;

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

        if (!is_numeric($points)) return false;

        $points = (int) $points;

        if ($points < 0) return '0%';
        if ($points > 100) return '100%';

        return ((string) $points) . '%';

    }

}

// vim: et sw=4 sts=4
Commit	Line	Data
f45a286b AD	1	<?php
	2
	3	/**
	4	* Validates the HTML type length (not to be confused with CSS's length).
	5	*
	6	* This accepts integer pixels or percentages as lengths for certain
	7	* HTML attributes.
	8	*/
	9
	10	class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
	11	{
	12
	13	public function validate($string, $config, $context) {
	14
	15	$string = trim($string);
	16	if ($string === '') return false;
	17
	18	$parent_result = parent::validate($string, $config, $context);
	19	if ($parent_result !== false) return $parent_result;
	20
	21	$length = strlen($string);
	22	$last_char = $string[$length - 1];
	23
	24	if ($last_char !== '%') return false;
	25
	26	$points = substr($string, 0, $length - 1);
	27
	28	if (!is_numeric($points)) return false;
	29
	30	$points = (int) $points;
	31
	32	if ($points < 0) return '0%';
	33	if ($points > 100) return '100%';
	34
	35	return ((string) $points) . '%';
	36
	37	}
	38
	39	}
	40
	41	// vim: et sw=4 sts=4