Made readVariable() protected again, if you need access to this method, implement...
[core.git] / inc / classes / main / template / class_BaseTemplateEngine.php
index 71d3bb2c23231ca265ab5d30bc061d3bff042a93..231d438235b7fd0d8767e0578b7917fa716bbe4c 100644 (file)
@@ -4,7 +4,7 @@
  *
  * @author             Roland Haeder <webmaster@ship-simu.org>
  * @version            0.0.0
- * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 Core Developer Team
+ * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
  * @license            GNU GPL 3.0 or any newer version
  * @link               http://www.ship-simu.org
  *
@@ -87,12 +87,12 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
        /**
         * Loaded raw template data
         */
-       private $loadedRawData = null;
+       private $loadedRawData = NULL;
 
        /**
         * Raw templates which are linked in code templates
         */
-       private $rawTemplates = null;
+       private $rawTemplates = NULL;
 
        /**
         * A regular expression for variable=value pairs
@@ -131,10 +131,21 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         */
        private $codeEnd = '?>';
 
+       /**
+        * Language support is enabled by default
+        */
+       private $languageSupport = true;
+
+       /**
+        * XML compacting is disabled by default
+        */
+       private $xmlCompacting = false;
+
        // Exception codes for the template engine
        const EXCEPTION_TEMPLATE_TYPE_IS_UNEXPECTED   = 0x110;
        const EXCEPTION_TEMPLATE_CONTAINS_INVALID_VAR = 0x111;
        const EXCEPTION_INVALID_VIEW_HELPER           = 0x112;
+       const EXCEPTION_VARIABLE_IS_MISSING           = 0x113;
 
        /**
         * Protected constructor
@@ -145,28 +156,42 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
        protected function __construct ($className) {
                // Call parent constructor
                parent::__construct($className);
+
+               // Init file I/O instance
+               $ioInstance = ObjectFactory::createObjectByConfiguredName('file_io_class');
+
+               // Set it
+               $this->setFileIoInstance($ioInstance);
        }
 
        /**
         * Search for a variable in the stack
         *
         * @param       $var    The variable we are looking for
-        * @return      $idx    FALSE means not found, >=0 means found on a specific index
+        * @param       $stack  Optional variable stack to look in
+        * @return      $index  FALSE means not found, >=0 means found on a specific index
         */
-       private function isVariableAlreadySet ($var) {
+       private function getVariableIndex ($var, $stack = NULL) {
                // First everything is not found
                $found = false;
 
+               // If the stack is null, use the current group
+               if (is_null($stack)) {
+                       // Use current group
+                       //* DEBUG: */ print __METHOD__.' currGroup=' . $this->currGroup . ' set as stack!<br />' . chr(10);
+                       $stack = $this->currGroup;
+               } // END - if
+
                // Is the group there?
-               if (isset($this->varStack[$this->currGroup])) {
+               if ($this->isVarStackSet($stack)) {
                        // Now search for it
-                       foreach ($this->varStack[$this->currGroup] as $idx => $currEntry) {
-                               //* DEBUG: */ echo __METHOD__.":currGroup={$this->currGroup},idx={$idx},currEntry={$currEntry['name']},var={$var}<br />\n";
+                       foreach ($this->getVarStack($stack) as $index => $currEntry) {
+                               //* DEBUG: */ print __METHOD__.":currGroup={$stack},idx={$index},currEntry={$currEntry['name']},var={$var}<br />\n";
                                // Is the entry found?
                                if ($currEntry['name'] == $var) {
                                        // Found!
-                                       //* DEBUG: */ echo __METHOD__.":FOUND!<br />\n";
-                                       $found = $idx;
+                                       //* DEBUG: */ print __METHOD__.":FOUND!<br />\n";
+                                       $found = $index;
                                        break;
                                } // END - if
                        } // END - foreach
@@ -176,29 +201,71 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                return $found;
        }
 
+       /**
+        * Checks whether the given variable stack is set
+        *
+        * @param       $stack  Variable stack to check
+        * @return      $isSet  Whether the given variable stack is set
+        */
+       protected final function isVarStackSet ($stack) {
+               // Check it
+               $isSet = isset($this->varStack[$stack]);
+
+               // Return result
+               return $isSet;
+       }
+
+       /**
+        * Getter for given variable stack
+        *
+        * @param       $stack          Variable stack to check
+        * @return      $varStack       Found variable stack
+        */
+       public final function getVarStack ($stack) {
+               return $this->varStack[$stack];
+       }
+
+       /**
+        * Setter for given variable stack
+        *
+        * @param       $stack          Variable stack to check
+        * @param       $varStack       Variable stack to check
+        * @return      void
+        */
+       protected final function setVarStack ($stack, array $varStack) {
+               $this->varStack[$stack]  = $varStack;
+       }
+
        /**
         * Return a content of a variable or null if not found
         *
         * @param       $var            The variable we are looking for
+        * @param       $stack          Optional variable stack to look in
         * @return      $content        Content of the variable or null if not found
         */
-       protected function readVariable ($var) {
+       protected function readVariable ($var, $stack = NULL) {
                // First everything is not found
-               $content = null;
+               $content = NULL;
+
+               // If the stack is null, use the current group
+               if (is_null($stack)) {
+                       // Use current group
+                       //* DEBUG: */ print __METHOD__.' currGroup=' . $this->currGroup . ' set as stack!<br />' . chr(10);
+                       $stack = $this->currGroup;
+               } // END - if
 
                // Get variable index
-               $found = $this->isVariableAlreadySet($var);
+               $found = $this->getVariableIndex($var, $stack);
 
                // Is the variable found?
                if ($found !== false) {
                        // Read it
-                       $found = $this->varStack[$this->currGroup][$found]['value'];
+                       $content = $this->getVariableValue($stack, $found);
                } // END - if
 
-               //* DEBUG: */ echo __METHOD__.": group=".$this->currGroup.",var=".$var.", found=".$found."<br />\n";
-
                // Return the current position
-               return $found;
+               //* DEBUG: */ print __METHOD__.': group='.$stack.',var='.$var.', content['.gettype($content).']='.$content.'<br />' . chr(10);
+               return $content;
        }
 
        /**
@@ -219,16 +286,16 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
        /**
         * Returns all variables of current group or empty array
         *
-        * @return      $result         Wether array of found variables or empty array
+        * @return      $result         Whether array of found variables or empty array
         */
        private function readCurrentGroup () {
                // Default is not found
                $result = array();
 
                // Is the group there?
-               if (isset($this->varStack[$this->currGroup])) {
+               if ($this->isVarStackSet($this->currGroup)) {
                        // Then use it
-                       $result = $this->varStack[$this->currGroup];
+                       $result = $this->getVarStack($this->currGroup);
                } // END - if
 
                // Return result
@@ -239,12 +306,12 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * Settter for variable group
         *
         * @param       $groupName      Name of variable group
-        * @param       $add            Wether add this group
-        * @retur4n     void
+        * @param       $add            Whether add this group
+        * @retur     void
         */
        public function setVariableGroup ($groupName, $add = true) {
                // Set group name
-               //* DEBIG: */ echo __METHOD__.": currGroup=".$groupName."<br />\n";
+               //* DEBIG: */ print __METHOD__.": currGroup=".$groupName."<br />\n";
                $this->currGroup = $groupName;
 
                // Skip group 'general'
@@ -262,19 +329,28 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @return      void
         */
        public function addGroupVariable ($var, $value) {
-               //* DEBUG: */ echo __METHOD__.": group=".$this->currGroup.", var=".$var.", value=".$value."<br />\n";
+               //* DEBUG: */ print __METHOD__.": group=".$this->currGroup.", var=".$var.", value=".$value."<br />\n";
 
                // Get current variables in group
                $currVars = $this->readCurrentGroup();
 
                // Append our variable
-               $currVars[] = array(
-                       'name'  => $var,
-                       'value' => $value
-               );
+               $currVars[] = $this->generateVariableArray($var, $value);
 
                // Add it to the stack
-               $this->varStack[$this->currGroup] = $currVars;
+               $this->setVarStack($this->currGroup, $currVars);
+       }
+
+       /**
+        * Getter for variable value, throws a NoVariableException if the variable is not found
+        *
+        * @param       $varGroup       Variable group to use
+        * @param       $index          Index in variable array
+        * @return      $value          Value to set
+        */
+       private function getVariableValue ($varGroup, $index) {
+               // Return it
+               return $this->varStack[$varGroup][$index]['value'];
        }
 
        /**
@@ -283,16 +359,75 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @param       $var    The variable we are looking for
         * @param       $value  The value we want to store in the variable
         * @return      void
+        * @throws      NoVariableException     If the given variable is not found
         */
        private function modifyVariable ($var, $value) {
                // Get index for variable
-               $idx = $this->isVariableAlreadySet($var);
+               $index = $this->getVariableIndex($var);
 
                // Is the variable set?
-               if ($idx !== false) {
-                       // Then modify it
-                       $this->varStack[$this->currGroup][$idx]['value'] = $value;
+               if ($index === false) {
+                       // Unset variables cannot be modified
+                       throw new NoVariableException(array($this, $var, $value), self::EXCEPTION_VARIABLE_IS_MISSING);
                } // END - if
+
+               // Then modify it
+               $this->setVariableValue($this->currGroup, $index, $value);
+       }
+
+       /**
+        * Sets a variable value for given variable group and index
+        *
+        * @param       $varGroup       Variable group to use
+        * @param       $index          Index in variable array
+        * @param       $value          Value to set
+        * @return      void
+        */
+       private function setVariableValue ($varGroup, $index, $value) {
+               $this->varStack[$varGroup][$index]['value'] = $value;
+       }
+
+       /**
+        * Sets a variable within given group. This method does detect if the
+        * variable is already set. If so, the variable got modified, otherwise
+        * added.
+        *
+        * @param       $varGroup       Variable group to use
+        * @param       $var            Variable to set
+        * @param       $value          Value to set
+        * @return      void
+        */
+       protected function setVariable ($varGroup, $var, $value) {
+               // Get index for variable
+               $index = $this->getVariableIndex($var);
+
+               // Is the variable set?
+               if ($index === false) {
+                       // Not found, add it
+                       $this->varStack[$varGroup][] = $this->generateVariableArray($var, $value);
+               } else {
+                       // Then modify it
+                       $this->setVariableValue($this->currGroup, $index, $value);
+               }
+       }
+
+       /**
+        * "Generates" (better returns) an array for all variables for given
+        * variable/value pay.
+        *
+        * @param       $var            Variable to set
+        * @param       $value          Value to set
+        * @return      $varData        Variable data array
+        */
+       private function generateVariableArray ($var, $value) {
+               // Generate the temporary array
+               $varData = array(
+                       'name'  => $var,
+                       'value' => $value
+               );
+
+               // And return it
+               return $varData;
        }
 
        /**
@@ -442,10 +577,10 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                } // END - if
 
                // First search for the variable if it was already added
-               $idx = $this->isVariableAlreadySet($var);
+               $index = $this->getVariableIndex($var);
 
                // Was it found?
-               if ($idx === false) {
+               if ($index === false) {
                        // Add it to the stack
                        //* DEBUG: */ echo "ADD: ".$var."<br />\n";
                        $this->addVariable($var, $value);
@@ -464,13 +599,30 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         */
        public final function removeVariable ($var) {
                // First search for the variable if it was already added
-               $idx = $this->isVariableAlreadySet($var);
+               $index = $this->getVariableIndex($var);
 
                // Was it found?
-               if ($idx !== false) {
+               if ($index !== false) {
                        // Remove this variable
-                       $this->varStack->offsetUnset($idx);
-               }
+                       $this->unsetVariableStackOffset($index);
+               } // END - if
+       }
+
+       /**
+        * Unsets the given offset in the variable stack
+        *
+        * @param       $index  Index to unset
+        * @return      void
+        */
+       protected final function unsetVariableStackOffset ($index) {
+               // Is the entry there?
+               if (!isset($this->varStack[$this->currGroup][$index])) {
+                       // Abort here, we need fixing!
+                       $this->debugInstance();
+               } // END - if
+
+               // Remove it
+               unset($this->varStack[$this->currGroup][$index]);
        }
 
        /**
@@ -481,8 +633,8 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         */
        protected final function setRawTemplateData ($rawTemplateData) {
                // And store it in this class
-               //* DEBUG: */ echo __METHOD__.':'.$this->getUniqueId().': '.strlen($rawTemplateData).' Bytes set.<br />\n';
-               //* DEBUG: */ echo $this->currGroup.' variables: '.count($this->varStack[$this->currGroup]).', groups='.count($this->varStack).'<br />\n';
+               //* DEBUG: */ print __METHOD__.': '.strlen($rawTemplateData).' Bytes set.' . chr(10);
+               //* DEBUG: */ print $this->currGroup.' variables: '.count($this->getVarStack($this->currGroup)).', groups='.count($this->varStack).'' . chr(10);
                $this->rawTemplateData = (string) $rawTemplateData;
        }
 
@@ -492,7 +644,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @return      $rawTemplateData        The raw data from the template
         */
        public final function getRawTemplateData () {
-               //* DEBUG: */ echo __METHOD__.':'.$this->getUniqueId().': '.strlen($this->rawTemplateData).' Bytes read.<br />\n';
+               //* DEBUG: */ print __METHOD__.': '.strlen($this->rawTemplateData).' Bytes read.' . chr(10);
                return $this->rawTemplateData;
        }
 
@@ -503,7 +655,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         */
        private final function setCompiledData ($compiledData) {
                // And store it in this class
-               //* DEBUG: */ echo __METHOD__.':'.$this->getUniqueId().': '.strlen($compiledData).' Bytes set.<br />\n';
+               //* DEBUG: */ print __METHOD__.': '.strlen($compiledData).' Bytes set.' . chr(10);
                $this->compiledData = (string) $compiledData;
        }
 
@@ -513,7 +665,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @return      $compiledData   Compiled template data
         */
        public final function getCompiledData () {
-               //* DEBUG: */ echo __METHOD__.':'.$this->getUniqueId().': '.strlen($this->compiledData).' Bytes read.<br />\n';
+               //* DEBUG: */ print __METHOD__.': '.strlen($this->compiledData).' Bytes read.' . chr(10);
                return $this->compiledData;
        }
 
@@ -523,7 +675,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @param       $template       The template we shall load
         * @param       $extOther       An other extension to use
         * @return      void
-        * @throws      FileNotFoundException   If the template was not found
+        * @throws      FileIoException If the template was not found
         */
        protected function loadTemplate ($template, $extOther = '') {
                // Get extension for the template if empty
@@ -535,22 +687,35 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                        $ext = (string) $extOther;
                }
 
-               // Construct the FQFN for the template by honoring the current language
-               $fqfn = sprintf("%s%s%s%s/%s/%s%s",
-                       $this->getConfigInstance()->getConfigEntry('base_path'),
-                       $this->getTemplateBasePath(),
-                       $this->getGenericBasePath(),
-                       $this->getLanguageInstance()->getLanguageCode(),
-                       $this->getTemplateType(),
-                       (string) $template,
-                       $ext
-               );
+               // Is language support enabled?
+               if ($this->isLanguageSupportEnabled()) {
+                       // Construct the FQFN for the template by honoring the current language
+                       $fqfn = sprintf("%s%s%s%s/%s/%s%s",
+                               $this->getConfigInstance()->getConfigEntry('base_path'),
+                               $this->getTemplateBasePath(),
+                               $this->getGenericBasePath(),
+                               $this->getLanguageInstance()->getLanguageCode(),
+                               $this->getTemplateType(),
+                               (string) $template,
+                               $ext
+                       );
+               } else {
+                       // Construct the FQFN for the template without language
+                       $fqfn = sprintf("%s%s%s%s/%s%s",
+                               $this->getConfigInstance()->getConfigEntry('base_path'),
+                               $this->getTemplateBasePath(),
+                               $this->getGenericBasePath(),
+                               $this->getTemplateType(),
+                               (string) $template,
+                               $ext
+                       );
+               }
 
                // First try this
                try {
                        // Load the raw template data
                        $this->loadRawTemplateData($fqfn);
-               } catch (FileNotFoundException $e) {
+               } catch (FileIoException $e) {
                        // If we shall load a code-template we need to switch the file extension
                        if (($this->getTemplateType() != $this->getConfigInstance()->getConfigEntry('web_template_type')) && (empty($extOther))) {
                                // Switch over to the code-template extension and try it again
@@ -560,7 +725,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                                $this->loadTemplate($template, $ext);
                        } else {
                                // Throw it again
-                               throw new FileNotFoundException($fqfn, FrameworkFileInputPointer::EXCEPTION_FILE_NOT_FOUND);
+                               throw new FileIoException($fqfn, FrameworkFileInputPointer::EXCEPTION_FILE_NOT_FOUND);
                        }
                }
 
@@ -577,7 +742,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                $ioInstance = $this->getFileIoInstance();
 
                // Some debug code to look on the file which is being loaded
-               //* DEBUG: */ echo __METHOD__.": FQFN=".$fqfn."<br />\n";
+               //* DEBUG: */ print __METHOD__.": FQFN=".$fqfn."<br />\n";
 
                // Load the raw template
                $rawTemplateData = $ioInstance->loadFileContents($fqfn);
@@ -656,7 +821,11 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                $backup = $this->getRawTemplateData();
 
                // Initialize some arrays
-               if (is_null($this->loadedRawData)) { $this->loadedRawData = array(); $this->rawTemplates = array(); }
+               if (is_null($this->loadedRawData)) {
+                       // Initialize both
+                       $this->loadedRawData = array();
+                       $this->rawTemplates = array();
+               } // END - if
 
                // Load all requested templates
                foreach ($templateMatches[1] as $template) {
@@ -666,16 +835,16 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                        if ((!isset($this->loadedRawData[$template])) && (!in_array($template, $this->loadedTemplates))) {
 
                                // Template not found, but maybe variable assigned?
-                               //* DEBUG: */ echo __METHOD__.":template={$template}<br />\n";
-                               if ($this->isVariableAlreadySet($template) !== false) {
+                               //* DEBUG: */ print __METHOD__.":template={$template}<br />\n";
+                               if ($this->getVariableIndex($template, 'config') !== false) {
                                        // Use that content here
-                                       $this->loadedRawData[$template] = $this->readVariable($template);
+                                       $this->loadedRawData[$template] = $this->readVariable($template, 'config');
 
                                        // Recursive protection:
                                        $this->loadedTemplates[] = $template;
-                               } elseif (isset($this->varStack['config'][$template])) {
+                               } elseif ($this->getVariableIndex($template) !== false) {
                                        // Use that content here
-                                       $this->loadedRawData[$template] = $this->varStack['config'][$template];
+                                       $this->loadedRawData[$template] = $this->readVariable($template);
 
                                        // Recursive protection:
                                        $this->loadedTemplates[] = $template;
@@ -689,10 +858,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                                                // Remember this template for recursion detection
                                                // RECURSIVE PROTECTION!
                                                $this->loadedTemplates[] = $template;
-                                       } catch (FileNotFoundException $e) {
-                                               // Even this is not done... :/
-                                               $this->rawTemplates[] = $template;
-                                       } catch (FilePointerNotOpenedException $e) {
+                                       } catch (FileIoException $e) {
                                                // Even this is not done... :/
                                                $this->rawTemplates[] = $template;
                                        }
@@ -791,10 +957,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                                        // Remember this template for recursion detection
                                        // RECURSIVE PROTECTION!
                                        $this->loadedTemplates[] = $template;
-                               } catch (FileNotFoundException $e) {
-                                       // This template was never found. We silently ignore it
-                                       unset($this->rawTemplates[$key]);
-                               } catch (FilePointerNotOpenedException $e) {
+                               } catch (FileIoException $e) {
                                        // This template was never found. We silently ignore it
                                        unset($this->rawTemplates[$key]);
                                }
@@ -830,6 +993,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
 
                } // for ($varMatches ...
        }
+
        /**
         * Compiles all loaded raw templates
         *
@@ -847,7 +1011,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                                if (in_array($template, $this->compiledTemplates)) {
                                        // Then skip it
                                        continue;
-                               }
+                               } // END - if
 
                                // Search for the template
                                $foundIndex = array_search($template, $templateMatches[1]);
@@ -895,23 +1059,30 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
        private function finalizeVariableCompilation () {
                // Get the content
                $content = $this->getRawTemplateData();
-               //* DEBUG: */ echo __METHOD__.': content before='.strlen($content).' ('.md5($content).')<br />\n';
+               //* DEBUG: */ print __METHOD__.': content before='.strlen($content).' ('.md5($content).')' . chr(10);
+
+               // Do we have the stack?
+               if (!$this->isVarStackSet('general')) {
+                       // Abort here silently
+                       // @TODO This silent abort should be logged, maybe.
+                       return;
+               } // END - if
 
                // Walk through all variables
-               foreach ($this->varStack['general'] as $currEntry) {
-                       //* DEBUG: */ echo __METHOD__.': name='.$currEntry['name'].', value=<pre>'.htmlentities($currEntry['value']).'</pre>\n';
+               foreach ($this->getVarStack('general') as $currEntry) {
+                       //* DEBUG: */ print __METHOD__.': name='.$currEntry['name'].', value=<pre>'.htmlentities($currEntry['value']).'</pre>\n';
                        // Replace all [$var] or {?$var?} with the content
                        // @TODO Old behaviour, will become obsolete!
-                       $content = str_replace("\$content[".$currEntry['name'].']', $currEntry['value'], $content);
+                       $content = str_replace('$content[' . $currEntry['name'] . ']', $currEntry['value'], $content);
 
                        // @TODO Yet another old way
-                       $content = str_replace('['.$currEntry['name'].']', $currEntry['value'], $content);
+                       $content = str_replace('[' . $currEntry['name'] . ']', $currEntry['value'], $content);
 
                        // The new behaviour
-                       $content = str_replace('{?'.$currEntry['name'].'?}', $currEntry['value'], $content);
+                       $content = str_replace('{?' . $currEntry['name'] . '?}', $currEntry['value'], $content);
                } // END - for
 
-               //* DEBUG: */ echo __METHOD__.': content after='.strlen($content).' ('.md5($content).')<br />\n';
+               //* DEBUG: */ print __METHOD__.': content after='.strlen($content).' ('.md5($content).')' . chr(10);
 
                // Set the content back
                $this->setRawTemplateData($content);
@@ -940,38 +1111,52 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         */
        public function assignConfigVariable ($var) {
                // Sweet and simple...
-               //* DEBUG: */ echo __METHOD__.':var={$var}<br />\n';
-               $this->varStack['config'][$var] = $this->getConfigInstance()->getConfigEntry($var);
+               //* DEBUG: */ print __METHOD__.': var=' . $var . ',getConfigEntry()=' . $this->getConfigInstance()->getConfigEntry($var) . chr(10);
+               $this->setVariable('config', $var, $this->getConfigInstance()->getConfigEntry($var));
        }
 
        /**
-        * Load a specified email template into the engine
+        * Load a specified code template into the engine
         *
-        * @param       $template       The email template we shall load which is located in
-        *                                              'emails' by default
+        * @param       $template       The code template we shall load which is
+        *                                              located in 'code' by default
         * @return      void
         */
-       public function loadEmailTemplate ($template) {
+       public function loadCodeTemplate ($template) {
                // Set template type
-               $this->setTemplateType($this->getConfigInstance()->getConfigEntry('email_template_type'));
+               $this->setTemplateType($this->getConfigInstance()->getConfigEntry('code_template_type'));
 
                // Load the special template
                $this->loadTemplate($template);
        }
 
        /**
-        * Load a specified code template into the engine
+        * Compiles configuration place-holders in all variables. This 'walks'
+        * through the variable stack 'general'. It interprets all values from that
+        * variables as configuration entries after compiling them.
         *
-        * @param       $template       The code template we shall load which is
-        *                                              located in 'code' by default
         * @return      void
         */
-       public function loadCodeTemplate ($template) {
-               // Set template type
-               $this->setTemplateType($this->getConfigInstance()->getConfigEntry('code_template_type'));
+       public final function compileConfigInVariables () {
+               // Do we have the stack?
+               if (!$this->isVarStackSet('general')) {
+                       // Abort here silently
+                       // @TODO This silent abort should be logged, maybe.
+                       return;
+               } // END - if
 
-               // Load the special template
-               $this->loadTemplate($template);
+               // Iterate through all general variables
+               foreach ($this->getVarStack('general') as $index => $currVariable) {
+                       // Compile the value
+                       $value = $this->compileRawCode($this->readVariable($currVariable['name']), true);
+
+                       // Remove it from stack
+                       $this->removeVariable($index, 'general');
+
+                       // Re-assign the variable
+                       //* DEBUG: */ print __METHOD__.': value='. $value . ',name=' . $currVariable['name'] . ',index=' . $index . chr(10);
+                       $this->assignConfigVariable($value);
+               } // END - foreach
        }
 
        /**
@@ -986,7 +1171,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                $dummy = array();
 
                // Iterate through all general variables
-               foreach ($this->varStack['general'] as $currVariable) {
+               foreach ($this->getVarStack('general') as $currVariable) {
                        // Transfer it's name/value combination to the $content array
                        //* DEBUG: */ echo $currVariable['name'].'=<pre>'.htmlentities($currVariable['value']).'</pre>\n';
                        $dummy[$currVariable['name']] = $currVariable['value'];
@@ -996,13 +1181,13 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                $$validVar = $dummy;
 
                // Prepare all configuration variables
-               $config = null;
-               if (isset($this->varStack['config'])) {
-                       $config = $this->varStack['config'];
+               $config = NULL;
+               if ($this->isVarStackSet('config')) {
+                       $config = $this->getVarStack('config');
                } // END - if
 
                // Remove some variables
-               unset($idx);
+               unset($index);
                unset($currVariable);
 
                // Run the compilation three times to get content from helper classes in
@@ -1079,8 +1264,11 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         *                                                                                      count has been found
         */
        public function compileTemplate () {
+               // Get code type to make things shorter
+               $codeType = $this->getConfigInstance()->getConfigEntry('code_template_type');
+
                // We will only work with template type "code" from configuration
-               if ($this->getTemplateType() != $this->getConfigInstance()->getConfigEntry('code_template_type')) {
+               if (substr($this->getTemplateType(), 0, strlen($codeType)) != $codeType) {
                        // Abort here
                        throw new UnexpectedTemplateTypeException(array($this, $this->getTemplateType(), $this->getConfigInstance()->getConfigEntry('code_template_type')), self::EXCEPTION_TEMPLATE_TYPE_IS_UNEXPECTED);
                } // END - if
@@ -1124,35 +1312,6 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                } // END - if($templateMatches ...
        }
 
-       /**
-        * A old deprecated method
-        *
-        * @return      void
-        * @deprecated
-        * @see         BaseTemplateEngine::transferToResponse
-        */
-       public function output () {
-               // Check which type of template we have
-               switch ($this->getTemplateType()) {
-                       case 'html': // Raw HTML templates can be send to the output buffer
-                               // Quick-N-Dirty:
-                               $this->getWebOutputInstance()->output($this->getCompiledData());
-                               break;
-
-                       default: // Unknown type found
-                               // Construct message
-                               $msg = sprintf("[%s-&gt;%s] Unknown/unsupported template type <span class=\"data\">%s</span> detected.",
-                                       $this->__toString(),
-                                       __FUNCTION__,
-                                       $this->getTemplateType()
-                               );
-
-                               // Write the problem to the world...
-                               $this->debugOutput($msg);
-                               break;
-               } // END - switch
-       }
-
        /**
         * Loads a given view helper (by name)
         *
@@ -1166,7 +1325,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                // Is this view helper loaded?
                if (!isset($this->helpers[$helperName])) {
                        // Create a class name
-                       $className = "{$helperName}ViewHelper";
+                       $className = $helperName . 'ViewHelper';
 
                        // Generate new instance
                        $this->helpers[$helperName] = ObjectFactory::createObjectByName($className);
@@ -1208,36 +1367,37 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
        /**
         * Assigns all the application data with template variables
         *
-        * @param       $appInstance    A manageable application instance
+        * @param       $applicationInstance    A manageable application instance
         * @return      void
         */
-       public function assignApplicationData (ManageableApplication $appInstance) {
+       public function assignApplicationData (ManageableApplication $applicationInstance) {
                // Get long name and assign it
-               $this->assignVariable('app_full_name' , $appInstance->getAppName());
+               $this->assignVariable('app_full_name' , $applicationInstance->getAppName());
 
                // Get short name and assign it
-               $this->assignVariable('app_short_name', $appInstance->getAppShortName());
+               $this->assignVariable('app_short_name', $applicationInstance->getAppShortName());
 
                // Get version number and assign it
-               $this->assignVariable('app_version'   , $appInstance->getAppVersion());
+               $this->assignVariable('app_version'   , $applicationInstance->getAppVersion());
 
                // Assign extra application-depending data
-               $appInstance->assignExtraTemplateData($this);
+               $applicationInstance->assignExtraTemplateData($this);
        }
 
        /**
         * "Compiles" a variable by replacing {?var?} with it's content
         *
-        * @param       $rawCode        Raw code to compile
+        * @param       $rawCode                        Raw code to compile
+        * @param       $setMatchAsCode         Sets $match if readVariable() returns empty result
         * @return      $rawCode        Compile code with inserted variable value
         */
-       public function compileRawCode ($rawCode) {
+       public function compileRawCode ($rawCode, $setMatchAsCode=false) {
                // Find the variables
-               //* DEBUG: */ echo "rawCode=<pre>".htmlentities($rawCode)."</pre>\n";
+               //* DEBUG: */ print __METHOD__.":rawCode=<pre>".htmlentities($rawCode)."</pre>\n";
                preg_match_all($this->regExpVarValue, $rawCode, $varMatches);
 
                // Compile all variables
-               //* DEBUG: */ echo "<pre>".print_r($varMatches, true)."</pre>";
+               //* DEBUG: */ print __METHOD__.":<pre>".print_r($varMatches, true)."</pre>\n";
                foreach ($varMatches[0] as $match) {
                        // Add variable tags around it
                        $varCode = '{?' . $match . '?}';
@@ -1245,12 +1405,20 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
                        // Is the variable found in code? (safes some calls)
                        if (strpos($rawCode, $varCode) !== false) {
                                // Replace the variable with it's value, if found
-                               //* DEBUG: */ echo __METHOD__.": match=".$match."<br />\n";
-                               $rawCode = str_replace($varCode, $this->readVariable($match), $rawCode);
+                               $value = $this->readVariable($match);
+                               //* DEBUG: */ print __METHOD__.": match=".$match.",value[".gettype($value)."]=".$value."<br />\n";
+                               if (($setMatchAsCode === true) && (is_null($value))) {
+                                       // Insert match
+                                       $rawCode = str_replace($varCode, $match, $rawCode);
+                               } else {
+                                       // Insert value
+                                       $rawCode = str_replace($varCode, $value, $rawCode);
+                               }
                        } // END - if
                } // END - foreach
 
                // Return the compiled data
+               //* DEBUG: */ print __METHOD__.":rawCode=<pre>".htmlentities($rawCode)."</pre>\n";
                return $rawCode;
        }
 
@@ -1271,7 +1439,7 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @return      void
         */
        public function renameVariable ($oldName, $newName) {
-               //* DEBUG: */ echo __METHOD__.": oldName={$oldName}, newName={$newName}<br />\n";
+               //* DEBUG: */ print __METHOD__.": oldName={$oldName}, newName={$newName}<br />\n";
                // Get raw template code
                $rawData = $this->getRawTemplateData();
 
@@ -1289,42 +1457,91 @@ class BaseTemplateEngine extends BaseFrameworkSystem {
         * @return      void
         * @throws      XmlParserException      If an XML error was found
         */
-       public final function renderXmlContent ($content = null) {
+       public function renderXmlContent ($content = NULL) {
                // Is the content set?
                if (is_null($content)) {
                        // Get current content
                        $content = $this->getRawTemplateData();
                } // END - if
 
-               // Convert all to UTF8
-               if (function_exists('recode')) {
-                       $content = recode("html..utf8", $content);
-               } else {
-                       // @TODO We need to find a fallback solution here
+               // Get a XmlParser instance
+               $parserInstance = ObjectFactory::createObjectByConfiguredName('xml_parser_class', array($this));
+
+               // Check if we have XML compacting enabled
+               if ($this->isXmlCompactingEnabled()) {
+                       // Yes, so get a decorator class for transparent compacting
+                       $parserInstance = ObjectFactory::createObjectByConfiguredName('deco_compacting_xml_parser_class', array($parserInstance));
                } // END - if
 
-               // Get an XML parser
-               $xmlParser = xml_parser_create();
+               // Parse the XML document
+               $parserInstance->parseXmlContent($content);
+       }
+
+       /**
+        * Enables or disables language support
+        *
+        * @param       $languageSupport        New language support setting
+        * @return      void
+        */
+       public final function enableLanguageSupport ($languageSupport = true) {
+               $this->languageSupport = (bool) $languageSupport;
+       }
 
-               // Force case-folding to on
-               xml_parser_set_option($xmlParser, XML_OPTION_CASE_FOLDING, true);
+       /**
+        * Checks whether language support is enabled
+        *
+        * @return      $languageSupport        Whether language support is enabled or disabled
+        */
+       public final function isLanguageSupportEnabled () {
+               return $this->languageSupport;
+       }
 
-               // Set object
-               xml_set_object($xmlParser, $this);
+       /**
+        * Enables or disables XML compacting
+        *
+        * @param       $xmlCompacting  New XML compacting setting
+        * @return      void
+        */
+       public final function enableXmlCompacting ($xmlCompacting = true) {
+               $this->xmlCompacting = (bool) $xmlCompacting;
+       }
 
-               // Set handler call-backs
-               xml_set_element_handler($xmlParser, 'startElement', 'endElement');
-               xml_set_character_data_handler($xmlParser, 'characterHandler');
+       /**
+        * Checks whether XML compacting is enabled
+        *
+        * @return      $xmlCompacting  Whether XML compacting is enabled or disabled
+        */
+       public final function isXmlCompactingEnabled () {
+               return $this->xmlCompacting;
+       }
 
-               // Now parse the XML tree
-               if (!xml_parse($xmlParser, $content)) {
-                       // Error found in XML!
-                       //die('<pre>'.htmlentities($content).'</pre>');
-                       throw new XmlParserException(array($this, $xmlParser), BaseHelper::EXCEPTION_XML_PARSER_ERROR);
+       /**
+        * Removes all commentd, tabs and new-line characters to compact the content
+        *
+        * @param       $uncompactedContent             The uncompacted content
+        * @return      $compactedContent               The compacted content
+        */
+       public function compactContent ($uncompactedContent) {
+               // First, remove all tab/new-line/revert characters
+               $compactedContent = str_replace(chr(9), '', str_replace(chr(10), '', str_replace(chr(13), '', $uncompactedContent)));
+
+               // Then regex all comments like <!-- //--> away
+               preg_match_all('/<!--[\w\W]*?(\/\/){0,1}-->/', $compactedContent, $matches);
+
+               // Do we have entries?
+               if (isset($matches[0][0])) {
+                       // Remove all
+                       foreach ($matches[0] as $match) {
+                               // Remove the match
+                               $compactedContent = str_replace($match, '', $compactedContent);
+                       } // END - foreach
                } // END - if
 
-               // Free the parser
-               xml_parser_free($xmlParser);
+               // Set the content again
+               $this->setRawTemplateData($compactedContent);
+
+               // Return compacted content
+               return $compactedContent;
        }
 }