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[2.1.4] [MFH] Encoder optimization and shut-up operator bugfix from r1680

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/branches/php4@1718 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2008-05-15 05:16:36 +00:00
parent 9f23bc005b
commit 5fa575f8ac
2 changed files with 17 additions and 1 deletions
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16
library/HTMLPurifier/Encoder.php
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@@ -62,6 +62,11 @@ class HTMLPurifier_Encoder
trigger_error('Cannot instantiate encoder, call methods statically', E_USER_ERROR);
}
/**
* Error-handler that mutes errors, alternative to shut-up operator.
*/
function muteErrorHandler() {}
/**
* Cleans a UTF-8 string for well-formedness and SGML validity
*
@@ -106,9 +111,18 @@ class HTMLPurifier_Encoder
static $iconv = null;
if ($iconv === null) $iconv = function_exists('iconv');
// UTF-8 validity is checked since PHP 4.3.5
// This is an optimization: if the string is already valid UTF-8, no
// need to do iconv/php stuff. 99% of the time, this will be the case.
if (preg_match('/^.{1}/us', $str)) {
return strtr($str, $non_sgml_chars);
}
if ($iconv && !$force_php) {
// do the shortcut way
$str = @iconv('UTF-8', 'UTF-8//IGNORE', $str);
set_error_handler(array('HTMLPurifier_Encoder', 'muteErrorHandler'));
$str = iconv('UTF-8', 'UTF-8//IGNORE', $str);
restore_error_handler();
return strtr($str, $non_sgml_chars);
}