47 lines
1.3 KiB
PHP
47 lines
1.3 KiB
PHP
<?php
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/**
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* Represents a Length as defined by CSS.
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*/
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class HTMLPurifier_AttrDef_CSS_Length extends HTMLPurifier_AttrDef
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{
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protected $min, $max;
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/**
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* @param HTMLPurifier_Length $max Minimum length, or null for no bound. String is also acceptable.
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* @param HTMLPurifier_Length $max Maximum length, or null for no bound. String is also acceptable.
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*/
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public function __construct($min = null, $max = null) {
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$this->min = $min !== null ? HTMLPurifier_Length::make($min) : null;
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$this->max = $max !== null ? HTMLPurifier_Length::make($max) : null;
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}
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public function validate($string, $config, $context) {
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$string = $this->parseCDATA($string);
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// Optimizations
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if ($string === '') return false;
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if ($string === '0') return '0';
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if (strlen($string) === 1) return false;
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$length = HTMLPurifier_Length::make($string);
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if (!$length->isValid()) return false;
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if ($this->min) {
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$c = $length->compareTo($this->min);
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if ($c === false) return false;
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if ($c < 0) return false;
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}
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if ($this->max) {
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$c = $length->compareTo($this->max);
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if ($c === false) return false;
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if ($c > 0) return false;
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}
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return $length->toString();
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}
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}
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// vim: et sw=4 sts=4
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