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✎ Editing: MultiLength.php ← Back

<?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

{

/**

* @param string $string

* @param HTMLPurifier_Config $config

* @param HTMLPurifier_Context $context

* @return bool|string

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

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