mirror of
https://github.com/renbaoshuo/S2OJ.git
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96d4a3ecf7
Due to historical reasons, the code is in subfolder "1". With SVN removal, we place the code back and remove the annoying "1" folder.
57 lines
1.2 KiB
PHP
57 lines
1.2 KiB
PHP
<?php
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/**
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* Validates the HTML type length (not to be confused with CSS's length).
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*
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* This accepts integer pixels or percentages as lengths for certain
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* HTML attributes.
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*/
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class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
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{
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/**
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* @param string $string
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return bool|string
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*/
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public function validate($string, $config, $context)
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{
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$string = trim($string);
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if ($string === '') {
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return false;
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}
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$parent_result = parent::validate($string, $config, $context);
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if ($parent_result !== false) {
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return $parent_result;
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}
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$length = strlen($string);
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$last_char = $string[$length - 1];
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if ($last_char !== '%') {
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return false;
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}
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$points = substr($string, 0, $length - 1);
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if (!is_numeric($points)) {
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return false;
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}
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$points = (int)$points;
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if ($points < 0) {
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return '0%';
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}
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if ($points > 100) {
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return '100%';
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}
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return ((string)$points) . '%';
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}
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}
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// vim: et sw=4 sts=4
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