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htmlpurifier/tests/Debugger.php

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<?php
/**
* Debugging tools.
*
* This file gives a developer a set of tools useful for performing code
* consistency checks. This includes scoping code blocks to ensure that
* only the interesting iteration of a loop gets outputted, a paint()
* function that acts like var_dump() with pre tags, and conditional
* printing.
*/
/*
TODO
* Integrate into SimpleTest so it tells us whether or not there were any
not cleaned up debug calls.
* Custom var_dump() that ignores blacklisted properties
*/
/**#@+
* Convenience global functions. Corresponds to method on Debugger.
*/
function paint($mixed) {
$Debugger =& Debugger::instance();
return $Debugger->paint($mixed);
}
function paintIf($mixed, $conditional) {
$Debugger =& Debugger::instance();
return $Debugger->paintIf($mixed, $conditional);
}
function paintWhen($mixed, $scopes = array()) {
$Debugger =& Debugger::instance();
return $Debugger->paintWhen($mixed, $scopes);
}
function paintIfWhen($mixed, $conditional, $scopes = array()) {
$Debugger =& Debugger::instance();
return $Debugger->paintIfWhen($mixed, $conditional, $scopes);
}
function addScope($id = false) {
$Debugger =& Debugger::instance();
return $Debugger->addScope($id);
}
function removeScope($id) {
$Debugger =& Debugger::instance();
return $Debugger->removeScope($id);
}
function resetScopes() {
$Debugger =& Debugger::instance();
return $Debugger->resetScopes();
}
function isInScopes($array = array()) {
$Debugger =& Debugger::instance();
return $Debugger->isInScopes($array);
}
/**#@-*/
/**
* The debugging singleton. Most interesting stuff happens here.
*/
class Debugger
{
var $shouldPaint = false;
var $paints = 0;
var $current_scopes = array();
var $scope_nextID = 1;
var $add_pre = true;
function Debugger() {
$this->add_pre = !extension_loaded('xdebug');
}
function &instance() {
static $soleInstance = false;
if (!$soleInstance) $soleInstance = new Debugger();
return $soleInstance;
}
function paintIf($mixed, $conditional) {
if (!$conditional) return;
$this->paint($mixed);
}
function paintWhen($mixed, $scopes = array()) {
if (!$this->isInScopes($scopes)) return;
$this->paint($mixed);
}
function paintIfWhen($mixed, $conditional, $scopes = array()) {
if (!$conditional) return;
if (!$this->isInScopes($scopes)) return;
$this->paint($mixed);
}
function paint($mixed) {
$this->paints++;
if($this->add_pre) echo '<pre>';
var_dump($mixed);
if($this->add_pre) echo '</pre>';
}
function addScope($id = false) {
if ($id == false) {
$id = $this->scope_nextID++;
}
$this->current_scopes[$id] = true;
}
function removeScope($id) {
if (isset($this->current_scopes[$id])) unset($this->current_scopes[$id]);
}
function resetScopes() {
$this->current_scopes = array();
$this->scope_nextID = 1;
}
function isInScopes($scopes = array()) {
if (empty($this->current_scopes)) {
return false;
}
if (!is_array($scopes)) {
$scopes = array($scopes);
}
foreach ($scopes as $scope_id) {
if (empty($this->current_scopes[$scope_id])) {
return false;
}
}
if (empty($scopes)) {
if ($this->scope_nextID == 1) {
return false;
}
for($i = 1; $i < $this->scope_nextID; $i++) {
if (empty($this->current_scopes[$i])) {
return false;
}
}
}
return true;
}
}
?>