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Implement native VarParser.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1604 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2008-03-05 05:03:01 +00:00
parent ff60e09780
commit 6cdcc8b8e1
3 changed files with 36 additions and 0 deletions
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25
library/HTMLPurifier/VarParser/Native.php Normal file
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@@ -0,0 +1,25 @@
<?php
/**
* This variable parser uses PHP's internal code engine. Because it does
* this, it can represent all inputs; however, it is dangerous and cannot
* be used by users.
*/
class HTMLPurifier_VarParser_Native extends HTMLPurifier_VarParser
{
protected function parseImplementation($var, $type, $allow_null) {
return $this->evalExpression($var);
}
protected function evalExpression($expr) {
$var = null;
$result = eval("\$var = $expr;");
if ($result === false) {
throw new HTMLPurifier_VarParserException("Fatal error in evaluated code");
}
return $var;
}
}