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<?php
/**
* Customize error renderer with PEAR_ErrorStack.
*
* PHP versions 4 and 5
*
* @category HTML
* @package HTML_CSS
* @subpackage Examples
* @author Klaus Guenther <klaus@capitalfocus.org>
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2005-2009 Klaus Guenther, Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php BSD
* @version CVS: $Id: css_errorstack_custom.php,v 1.9 2009/01/19 23:22:39 farell Exp $
* @link http://pear.php.net/package/HTML_CSS
* @since File available since Release 1.0.0RC1
* @ignore
*/
require_once 'HTML/CSS.php';
require_once 'HTML/CSS/Error.php';
require_once 'PEAR/ErrorStack.php';
/**
* This class creates a css error stack object with help of PEAR_ErrorStack
*
* @category HTML
* @package HTML_CSS
* @subpackage Examples
* @author Klaus Guenther <klaus@capitalfocus.org>
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2005-2009 Klaus Guenther, Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php BSD
* @link http://pear.php.net/package/HTML_CSS
* @ignore
*/
class HTML_CSS_ErrorStack
{
/**
* HTML_CSS_ErrorStack class constructor
*/
function HTML_CSS_ErrorStack()
{
$s = &PEAR_ErrorStack::singleton('HTML_CSS');
$t = HTML_CSS_Error::_getErrorMessage();
$s->setErrorMessageTemplate($t);
$s->setContextCallback(array(&$this,'getBacktrace'));
$logger = array(&$this,'log');
$s->setLogger($logger);
$s->pushCallback(array(&$this,'errorHandler'));
}
/**
* Add an error to the HTML_CSS error stack
*
* @param int $code Package-specific error code
* @param string $level Error level. This is NOT spell-checked
* @param array $params Associative array of error parameters
*
* @return PEAR_Error|array if compatibility mode is on
*/
function push($code, $level, $params)
{
$s = &PEAR_ErrorStack::singleton('HTML_CSS');
return $s->push($code, $level, $params);
}
/**
* Get the call backtrace from where the error was generated.
*
* @return mixed bool|array
*/
function getBacktrace()
{
if (function_exists('debug_backtrace')) {
$backtrace = debug_backtrace();
$backtrace = $backtrace[count($backtrace)-1];
} else {
$backtrace = false;
}
return $backtrace;
}
/**
* Print the current error
*
* @param array $err user info error with call context
*
* @return void
*/
function log($err)
{
global $prefs;
$lineFormat = '<b>%1$s:</b> %2$s<br/>[%3$s]<hr/>'."<br/>\n";
$contextFormat = 'in <b>%1$s</b> on line <b>%2$s</b>';
if (isset($prefs['handler']['display']['lineFormat'])) {
$lineFormat = $prefs['handler']['display']['lineFormat'];
}
if (isset($prefs['handler']['display']['contextFormat'])) {
$contextFormat = $prefs['handler']['display']['contextFormat'];
}
$context = $err['context'];
if ($context) {
$file = $context['file'];
$line = $context['line'];
$contextExec = sprintf($contextFormat, $file, $line);
} else {
$contextExec = '';
}
printf($lineFormat,
ucfirst(get_class($this)) . ' ' . $err['level'],
$err['message'],
$contextExec);
}
/**
* Error Callback used by PEAR_ErrorStack on each error raised
*
* @param array $err user info error with call context
*
* @return void|int
*/
function errorHandler($err)
{
global $halt_onException;
if ($halt_onException) {
if ($err['level'] == 'exception') {
return PEAR_ERRORSTACK_DIE;
}
}
}
}
// set it to on if you want to halt script on any exception
$halt_onException = false;
// Example A. ---------------------------------------------
$stack =& new HTML_CSS_ErrorStack();
$attribs = array();
$prefs = array('error_handler' => array(&$stack, 'push'));
// A1. Error
$css1 = new HTML_CSS($attribs, $prefs);
$group1 = $css1->createGroup('body, html', 'grp1');
$group2 = $css1->createGroup('p, html', 'grp1');
// Example B. ---------------------------------------------
$displayConfig = array(
'lineFormat' => '<b>%1$s</b>: %2$s<br/>%3$s<hr/>',
'contextFormat' => '<b>File:</b> %1$s <br/>'
. '<b>Line:</b> %2$s '
);
$attribs = array();
$prefs = array(
'error_handler' => array(&$stack, 'push'),
'handler' => array('display' => $displayConfig)
);
$css2 = new HTML_CSS($attribs, $prefs);
// B1. Error
$css2->getStyle('h1', 'class');
// B2. Exception
$css2->setXhtmlCompliance('true');
print 'still alive !';
?>
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