3 namespace Org\Mxchange\CoreFramework\Template\Engine;
5 // Import framework stuff
6 use Org\Mxchange\CoreFramework\Bootstrap\FrameworkBootstrap;
7 use Org\Mxchange\CoreFramework\EntryPoint\ApplicationEntryPoint;
8 use Org\Mxchange\CoreFramework\Factory\ObjectFactory;
9 use Org\Mxchange\CoreFramework\Filesystem\FileNotFoundException;
10 use Org\Mxchange\CoreFramework\Generic\NullPointerException;
11 use Org\Mxchange\CoreFramework\Manager\ManageableApplication;
12 use Org\Mxchange\CoreFramework\Object\BaseFrameworkSystem;
13 use Org\Mxchange\CoreFramework\Registry\GenericRegistry;
14 use Org\Mxchange\CoreFramework\Response\Responseable;
15 use Org\Mxchange\CoreFramework\Stacker\Stackable;
16 use Org\Mxchange\CoreFramework\Traits\Handler\Io\IoHandlerTrait;
17 use Org\Mxchange\CoreFramework\Utils\String\StringUtils;
20 use \InvalidArgumentException;
24 * A generic template engine
26 * @author Roland Haeder <webmaster@shipsimu.org>
28 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2020 Core Developer Team
29 * @license GNU GPL 3.0 or any newer version
30 * @link http://www.shipsimu.org
32 * This program is free software: you can redistribute it and/or modify
33 * it under the terms of the GNU General Public License as published by
34 * the Free Software Foundation, either version 3 of the License, or
35 * (at your option) any later version.
37 * This program is distributed in the hope that it will be useful,
38 * but WITHOUT ANY WARRANTY; without even the implied warranty of
39 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
40 * GNU General Public License for more details.
42 * You should have received a copy of the GNU General Public License
43 * along with this program. If not, see <http://www.gnu.org/licenses/>.
45 abstract class BaseTemplateEngine extends BaseFrameworkSystem {
49 // Exception codes for the template engine
50 const EXCEPTION_TEMPLATE_TYPE_IS_UNEXPECTED = 0x110;
51 const EXCEPTION_TEMPLATE_CONTAINS_INVALID_VAR = 0x111;
52 const EXCEPTION_INVALID_VIEW_HELPER = 0x112;
53 const EXCEPTION_VARIABLE_IS_MISSING = 0x113;
56 * The local path name where all templates and sub folders for special
57 * templates are stored. We will internally determine the language plus
58 * "html" for web templates or "emails" for email templates
60 private $templateBasePath = '';
65 private $templateType = 'html';
68 * The extension for web and email templates (not compiled templates)
70 private $templateExtension = '.tpl';
73 * The extension for code templates (not compiled templates)
75 private $codeExtension = '.ctp';
78 * Path relative to $templateBasePath and language code for compiled code-templates
80 private $compileOutputPath = 'templates/_compiled/';
83 * The path name for all templates
85 private $genericBasePath = 'templates/';
88 * The raw (maybe uncompiled) template
90 private $rawTemplateData = '';
93 * Template data with compiled-in variables
95 private $compiledData = '';
98 * The last loaded template's file instance (SplFileInfo)
100 private $lastTemplate = NULL;
103 * The variable stack for the templates
105 private $varStack = [];
108 * Loaded templates for recursive protection and detection
110 private $loadedTemplates = [];
113 * Compiled templates for recursive protection and detection
115 private $compiledTemplates = [];
118 * Loaded raw template data
120 private $loadedRawData = NULL;
123 * Raw templates which are linked in code templates
125 private $rawTemplates = NULL;
128 * A regular expression for variable=value pairs
130 private $regExpVarValue = '/([\w_]+)(="([^"]*)"|=([\w_]+))?/';
133 * A regular expression for filtering out code tags
135 * E.g.: {?template:variable=value;var2=value2;[...]?}
137 private $regExpCodeTags = '/\{\?([a-z_]+)(:("[^"]+"|[^?}]+)+)?\?\}/';
140 * A regular expression to find template comments like <!-- Comment here //-->
142 private $regExpComments = '/<!--[\w\W]*?(\/\/){0,1}-->/';
147 private $helpers = [];
150 * Current variable group
152 private $currGroup = 'general';
155 * All template groups except "general"
157 private $variableGroups = [];
162 private $codeBegin = '<?php';
167 private $codeEnd = '?>';
170 * Language support is enabled by default
172 private $languageSupport = true;
175 * XML compacting is disabled by default
177 private $xmlCompacting = false;
180 * Instance of the stacker
182 private $stackInstance = NULL;
185 * Protected constructor
187 * @param $className Name of the class
190 protected function __construct (string $className) {
191 // Call parent constructor
192 parent::__construct($className);
194 // Init file I/O instance
195 $ioInstance = ObjectFactory::createObjectByConfiguredName('file_io_class');
198 $this->setFileIoInstance($ioInstance);
202 * Search for a variable in the stack
204 * @param $variableName The variable we are looking for
205 * @param $variableGroup Optional variable group to look in
206 * @return $index false means not found, >=0 means found on a specific index
208 private function getVariableIndex (string $variableName, string $variableGroup = NULL) {
209 // Replace all dashes to underscores to match variables with configuration entries
210 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
212 // First everything is not found
215 // If the stack is NULL, use the current group
216 if (is_null($variableGroup)) {
218 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.' currGroup=' . $this->currGroup . ' set as stack!');
219 $variableGroup = $this->currGroup;
222 // Is the group there?
223 if ($this->isVarStackSet($variableGroup)) {
225 foreach ($this->getVarStack($variableGroup) as $index => $currEntry) {
226 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.':currGroup=' . $variableGroup . ',idx=' . $index . ',currEntry=' . $currEntry['name'] . ',variableName=' . $variableName);
227 // Is the entry found?
228 if ($currEntry['name'] == $variableName) {
230 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.':FOUND!');
237 // Return the current position
242 * Checks whether the given variable group is set
244 * @param $variableGroup Variable group to check
245 * @return $isSet Whether the given variable group is set
247 protected final function isVarStackSet (string $variableGroup) {
249 $isSet = isset($this->varStack[$variableGroup]);
256 * Getter for given variable group
258 * @param $variableGroup Variable group to check
259 * @return $varStack Found variable group
261 public final function getVarStack (string $variableGroup) {
262 return $this->varStack[$variableGroup];
266 * Setter for given variable group
268 * @param $variableGroup Variable group to check
269 * @param $varStack Variable stack to check
272 protected final function setVarStack (string $variableGroup, array $varStack) {
273 $this->varStack[$variableGroup] = $varStack;
277 * Return a content of a variable or null if not found
279 * @param $variableName The variable we are looking for
280 * @param $variableGroup Optional variable group to look in
281 * @return $content Content of the variable or null if not found
283 protected function readVariable (string $variableName, string $variableGroup = NULL) {
284 // Replace all dashes to underscores to match variables with configuration entries
285 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
287 // First everything is not found
290 // If the stack is NULL, use the current group
291 if (is_null($variableGroup)) {
293 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.' currGroup=' . $this->currGroup . ' set as stack!');
294 $variableGroup = $this->currGroup;
297 // Get variable index
298 $found = $this->getVariableIndex($variableName, $variableGroup);
300 // Is the variable found?
301 if ($found !== false) {
303 $content = $this->getVariableValue($variableGroup, $found);
306 // Return the current position
307 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.': variableGroup=' . $variableGroup . ',variableName=' . $variableName . ', content[' . gettype($content) . ']=' . $content);
312 * Add a variable to the stack
314 * @param $variableName Name of variable to add
315 * @param $value Value we want to store in the variable
318 private function addVariable (string $variableName, $value) {
319 // Set general variable group
320 $this->setVariableGroup('general');
322 // Add it to the stack
323 $this->addGroupVariable($variableName, $value);
327 * Returns all variables of current group or empty array
329 * @return $result Whether array of found variables or empty array
331 private function readCurrentGroup () {
332 // Default is not found
335 // Is the group there?
336 if ($this->isVarStackSet($this->currGroup)) {
338 $result = $this->getVarStack($this->currGroup);
346 * Settter for variable group
348 * @param $groupName Name of variable group
349 * @param $add Whether add this group
352 public function setVariableGroup (string $groupName, bool $add = true) {
354 //* DEBIG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.': currGroup=' . $groupName);
355 $this->currGroup = $groupName;
357 // Skip group 'general'
358 if (($groupName != 'general') && ($add === true)) {
359 $this->variableGroups[$groupName] = 'OK';
365 * Adds a variable to current group
367 * @param $variableName Variable to set
368 * @param $value Value to store in variable
371 public function addGroupVariable (string $variableName, $value) {
372 // Replace all dashes to underscores to match variables with configuration entries
373 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
376 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.': group=' . $this->currGroup . ', variableName=' . $variableName . ', value=' . $value);
378 // Get current variables in group
379 $currVars = $this->readCurrentGroup();
381 // Append our variable
382 array_push($currVars, $this->generateVariableArray($variableName, $value));
384 // Add it to the stack
385 $this->setVarStack($this->currGroup, $currVars);
389 * Getter for variable value, throws a NoVariableException if the variable is not found
391 * @param $variableGroup Variable group to use
392 * @param $index Index in variable array
393 * @return $value Value to set
395 private function getVariableValue (string $variableGroup, int $index) {
397 return $this->varStack[$variableGroup][$index]['value'];
401 * Modify an entry on the stack
403 * @param $variableName The variable we are looking for
404 * @param $value The value we want to store in the variable
406 * @throws NoVariableException If the given variable is not found
408 private function modifyVariable (string $variableName, $value) {
409 // Replace all dashes to underscores to match variables with configuration entries
410 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
412 // Get index for variable
413 $index = $this->getVariableIndex($variableName);
415 // Is the variable set?
416 if ($index === false) {
417 // Unset variables cannot be modified
418 throw new NoVariableException(array($this, $variableName, $value), self::EXCEPTION_VARIABLE_IS_MISSING);
422 $this->setVariableValue($this->currGroup, $index, $value);
426 * Sets a variable value for given variable group and index
428 * @param $variableGroup Variable group to use
429 * @param $index Index in variable array
430 * @param $value Value to set
433 private function setVariableValue (string $variableGroup, int $index, $value) {
434 $this->varStack[$variableGroup][$index]['value'] = $value;
438 * Sets a variable within given group. This method does detect if the
439 * variable is already set. If so, the variable got modified, otherwise
442 * @param $variableGroup Variable group to use
443 * @param $variableName Variable to set
444 * @param $value Value to set
447 protected function setVariable (string $variableGroup, string $variableName, $value) {
448 // Replace all dashes to underscores to match variables with configuration entries
449 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
451 // Get index for variable
452 $index = $this->getVariableIndex($variableName);
454 // Is the variable set?
455 if ($index === false) {
456 // Is the stack there?
457 if (!isset($this->varStack[$variableGroup])) {
458 // Then initialize it here
459 $this->varStack[$variableGroup] = [];
463 array_push($this->varStack[$variableGroup], $this->generateVariableArray($variableName, $value));
466 $this->setVariableValue($this->currGroup, $index, $value);
471 * "Generates" (better returns) an array for all variables for given
472 * variable/value pay.
474 * @param $variableName Variable to set
475 * @param $value Value to set
476 * @return $varData Variable data array
478 private function generateVariableArray (string $variableName, $value) {
479 // Replace all dashes to underscores to match variables with configuration entries
480 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
482 // Generate the temporary array
484 'name' => $variableName,
493 * Setter for template type. Only 'html', 'emails' and 'compiled' should
496 * @param $templateType The current template's type
499 protected final function setTemplateType (string $templateType) {
500 $this->templateType = $templateType;
504 * Getter for template type
506 * @return $templateType The current template's type
508 public final function getTemplateType () {
509 return $this->templateType;
513 * Setter for the last loaded template's file instance
515 * @param $template The last loaded template
518 private final function setLastTemplate (SplFileInfo $fileInstance) {
519 $this->lastTemplate = $fileInstance;
523 * Getter for the last loaded template's file instance
525 * @return $template The last loaded template
527 private final function getLastTemplate () {
528 return $this->lastTemplate;
532 * Setter for base path
534 * @param $templateBasePath The relative base path for all templates
537 protected final function setTemplateBasePath (string $templateBasePath) {
539 $this->templateBasePath = $templateBasePath;
543 * Getter for base path
545 * @return $templateBasePath The relative base path for all templates
547 public final function getTemplateBasePath () {
549 return $this->templateBasePath;
553 * Getter for generic base path
555 * @return $templateBasePath The relative base path for all templates
557 public final function getGenericBasePath () {
559 return $this->genericBasePath;
563 * Setter for template extension
565 * @param $templateExtension The file extension for all uncompiled
569 protected final function setRawTemplateExtension (string $templateExtension) {
571 $this->templateExtension = $templateExtension;
575 * Setter for code template extension
577 * @param $codeExtension The file extension for all uncompiled
581 protected final function setCodeTemplateExtension (string $codeExtension) {
583 $this->codeExtension = $codeExtension;
587 * Getter for template extension
589 * @return $templateExtension The file extension for all uncompiled
592 public final function getRawTemplateExtension () {
594 return $this->templateExtension;
598 * Getter for code-template extension
600 * @return $codeExtension The file extension for all code-
603 public final function getCodeTemplateExtension () {
605 return $this->codeExtension;
609 * Setter for path of compiled templates
611 * @param $compileOutputPath The local base path for all compiled
615 protected final function setCompileOutputPath (string $compileOutputPath) {
617 $this->compileOutputPath = $compileOutputPath;
621 * Unsets the given offset in the variable group
623 * @param $index Index to unset
624 * @param $variableGroup Variable group (default: currGroup)
627 protected final function unsetVariableStackOffset (int $index, string $variableGroup = NULL) {
628 // Is the variable group not set?
629 if (is_null($variableGroup)) {
630 // Then set it to current
631 $variableGroup = $this->currGroup;
634 // Is the entry there?
635 if (!isset($this->varStack[$variableGroup][$index])) {
636 // Abort here, we need fixing!
637 $this->debugInstance();
641 unset($this->varStack[$variableGroup][$index]);
645 * Private setter for raw template data
647 * @param $rawTemplateData The raw data from the template
650 protected final function setRawTemplateData (string $rawTemplateData) {
651 // And store it in this class
652 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.': ' . strlen($rawTemplateData) . ' Bytes set.');
653 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(__METHOD__.': ' . $this->currGroup . ' variables: ' . count($this->getVarStack($this->currGroup)) . ', groups=' . count($this->varStack));
654 $this->rawTemplateData = $rawTemplateData;
658 * Getter for raw template data
660 * @return $rawTemplateData The raw data from the template
662 public final function getRawTemplateData () {
663 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: ' . strlen($this->rawTemplateData) . ' Bytes read.');
664 return $this->rawTemplateData;
668 * Private setter for compiled templates
670 * @param $compiledData Compiled template data
673 private final function setCompiledData (string $compiledData) {
674 // And store it in this class
675 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: ' . strlen($compiledData) . ' Bytes set.');
676 $this->compiledData = $compiledData;
680 * Getter for compiled templates, must be public for e.g. Mailer classes.
682 * @return $compiledData Compiled template data
684 public final function getCompiledData () {
685 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: ' . strlen($this->compiledData) . ' Bytes read.');
686 return $this->compiledData;
690 * Private loader for all template types
692 * @param $templateName The template we shall load
693 * @param $extOther An other extension to use
695 * @throws FileNotFoundException If the template was not found
697 protected function loadTemplate (string $templateName, string $extOther = '') {
698 // Get extension for the template if empty
699 if (empty($extOther)) {
700 // None provided, so get the raw one
701 $ext = $this->getRawTemplateExtension();
708 * Construct the FQFN for the template without language as language is
709 * now entirely done by php_intl. These old thing with language-based
710 * template paths comes from an older time.
712 $fileInstance = new SplFileInfo(sprintf('%s%s%s%s%s%s',
713 $this->getTemplateBasePath(),
714 $this->getGenericBasePath(),
715 $this->getTemplateType(),
717 (string) $templateName,
723 // Load the raw template data
724 $this->loadRawTemplateData($fileInstance);
725 } catch (FileNotFoundException $e) {
726 // If we shall load a code-template we need to switch the file extension
727 if (($this->getTemplateType() != FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('html_template_type')) && (empty($extOther))) {
728 // Switch over to the code-template extension and try it again
729 $ext = $this->getCodeTemplateExtension();
732 $this->loadTemplate($templateName, $ext);
735 throw new FileNotFoundException($fileInstance, self::EXCEPTION_FILE_NOT_FOUND);
742 * A private loader for raw template names
744 * @param $fileInstance An instance of a SplFileInfo class
747 private function loadRawTemplateData (SplFileInfo $fileInstance) {
748 // Load the raw template
749 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: fileInstance=' . $fileInstance);
750 $rawTemplateData = $this->getFileIoInstance()->loadFileContents($fileInstance);
752 // Store the template's contents into this class
753 $this->setRawTemplateData($rawTemplateData);
755 // Remember the template's file instance
756 $this->setLastTemplate($fileInstance);
760 * Try to assign an extracted template variable as a "content" or 'config'
763 * @param $variableName The variable's name (shall be content or config)
765 * @param $variableName The variable we want to assign
768 private function assignTemplateVariable (string $variableName, $var) {
769 // Replace all dashes to underscores to match variables with configuration entries
770 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: variableName=' . $variableName . ',var=' . $var);
771 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
773 // Is it not a config variable?
774 if ($variableName != 'config') {
775 // Regular template variables
776 $this->assignVariable($variableName, '');
778 // Configuration variables
779 $this->assignConfigVariable($var);
784 * Extract variables from a given raw data stream
786 * @param $rawData The raw template data we shall analyze
789 private function extractVariablesFromRawData (string $rawData) {
790 // Search for variables
791 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:rawData(' . strlen($rawData) . ')=' . $rawData . ',variableMatches=' . print_r($variableMatches, true));
792 preg_match_all('/\$(\w+)(\[(\w+)\])?/', $rawData, $variableMatches);
794 // Did we find some variables?
795 if ((is_array($variableMatches)) && (count($variableMatches) == 4) && (count($variableMatches[0]) > 0)) {
796 // Initialize all missing variables
797 foreach ($variableMatches[3] as $key => $var) {
799 $variableName = $variableMatches[1][$key];
801 // Workarround: Do not assign empty variables
803 // Try to assign it, empty strings are being ignored
804 $this->assignTemplateVariable($variableName, $var);
811 * Main analysis of the loaded template
813 * @param $templateMatches Found template place-holders, see below
816 *---------------------------------
817 * Structure of $templateMatches:
818 *---------------------------------
819 * [0] => Array - An array with all full matches
820 * [1] => Array - An array with left part (before the ':') of a match
821 * [2] => Array - An array with right part of a match including ':'
822 * [3] => Array - An array with right part of a match excluding ':'
824 private function analyzeTemplate (array $templateMatches) {
825 // Backup raw template data
826 $backup = $this->getRawTemplateData();
828 // Initialize some arrays
829 if (is_null($this->loadedRawData)) {
831 $this->loadedRawData = [];
832 $this->rawTemplates = [];
835 // Load all requested templates
836 foreach ($templateMatches[1] as $template) {
837 // Load and compile only templates which we have not yet loaded
838 // RECURSIVE PROTECTION! BE CAREFUL HERE!
839 if ((!isset($this->loadedRawData[$template])) && (!in_array($template, $this->loadedTemplates))) {
841 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:template=' . $template);
843 // Template not found, but maybe variable assigned?
844 if ($this->getVariableIndex($template) !== false) {
845 // Use that content here
846 $this->loadedRawData[$template] = $this->readVariable($template);
848 // Recursive protection:
849 array_push($this->loadedTemplates, $template);
851 // Then try to search for code-templates
853 // Load the code template and remember it's contents
854 $this->loadCodeTemplate($template);
855 $this->loadedRawData[$template] = $this->getRawTemplateData();
857 // Remember this template for recursion detection
858 // RECURSIVE PROTECTION!
859 array_push($this->loadedTemplates, $template);
860 } catch (FileNotFoundException $e) {
861 // Even this is not done... :/
862 array_push($this->rawTemplates, $template);
868 // Restore the raw template data
869 $this->setRawTemplateData($backup);
873 * Compile a given raw template code and remember it for later usage
875 * @param $code The raw template code
876 * @param $template The template's name
879 private function compileCode (string $code, string $template) {
880 // Is this template already compiled?
881 if (in_array($template, $this->compiledTemplates)) {
886 // Remember this template being compiled
887 array_push($this->compiledTemplates, $template);
889 // Compile the loaded code in five steps:
891 // 1. Backup current template data
892 $backup = $this->getRawTemplateData();
894 // 2. Set the current template's raw data as the new content
895 $this->setRawTemplateData($code);
897 // 3. Compile the template data
898 $this->compileTemplate();
900 // 4. Remember it's contents
901 $this->loadedRawData[$template] = $this->getRawTemplateData();
903 // 5. Restore the previous raw content from backup variable
904 $this->setRawTemplateData($backup);
908 * Insert all given and loaded templates by running through all loaded
909 * codes and searching for their place-holder in the main template
911 * @param $templateMatches See method analyzeTemplate()
914 private function insertAllTemplates (array $templateMatches) {
915 // Run through all loaded codes
916 foreach ($this->loadedRawData as $template => $code) {
918 // Search for the template
919 $foundIndex = array_search($template, $templateMatches[1]);
921 // Lookup the matching template replacement
922 if (($foundIndex !== false) && (isset($templateMatches[0][$foundIndex]))) {
924 // Get the current raw template
925 $rawData = $this->getRawTemplateData();
927 // Replace the space holder with the template code
928 $rawData = str_replace($templateMatches[0][$foundIndex], $code, $rawData);
930 // Set the new raw data
931 $this->setRawTemplateData($rawData);
937 * Load all extra raw templates
941 private function loadExtraRawTemplates () {
942 // Are there some raw templates we need to load?
943 if (count($this->rawTemplates) > 0) {
944 // Try to load all raw templates
945 foreach ($this->rawTemplates as $key => $template) {
948 $this->loadHtmlTemplate($template);
950 // Remember it's contents
951 $this->rawTemplates[$template] = $this->getRawTemplateData();
953 // Remove it from the loader list
954 unset($this->rawTemplates[$key]);
956 // Remember this template for recursion detection
957 // RECURSIVE PROTECTION!
958 array_push($this->loadedTemplates, $template);
959 } catch (FileNotFoundException $e) {
960 // This template was never found. We silently ignore it
961 unset($this->rawTemplates[$key]);
968 * Assign all found template variables
970 * @param $varMatches An array full of variable/value pairs.
972 * @todo Unfinished work or don't die here.
974 private function assignAllVariables (array $varMatches) {
976 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:varMatches()=' . count($varMatches));
978 // Search for all variables
979 foreach ($varMatches[1] as $key => $var) {
980 // Replace all dashes to underscores to match variables with configuration entries
981 $var = trim(StringUtils::convertDashesToUnderscores($var));
984 self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:key=' . $key . ',var=' . $var);
986 // Detect leading equals
987 if (substr($varMatches[2][$key], 0, 1) == '=') {
988 // Remove and cast it
989 $varMatches[2][$key] = (string) substr($varMatches[2][$key], 1);
992 // Do we have some quotes left and right side? Then it is free text
993 if ((substr($varMatches[2][$key], 0, 1) == '"') && (substr($varMatches[2][$key], -1, 1) == '"')) {
994 // Free string detected! Which we can assign directly
995 $this->assignVariable($var, $varMatches[3][$key]);
996 } elseif (!empty($varMatches[2][$key])) {
997 // @TODO Non-string found so we need some deeper analysis...
998 ApplicationEntryPoint::exitApplication('Deeper analysis not yet implemented!');
1004 * Compiles all loaded raw templates
1006 * @param $templateMatches See method analyzeTemplate() for details
1009 private function compileRawTemplateData (array $templateMatches) {
1011 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:loadedRawData()= ' .count($this->loadedRawData));
1013 // Are some code-templates found which we need to compile?
1014 if (count($this->loadedRawData) > 0) {
1015 // Then compile all!
1016 foreach ($this->loadedRawData as $template => $code) {
1018 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:template=' . $template . ',code(' . strlen($code) . ')=' . $code);
1020 // Is this template already compiled?
1021 if (in_array($template, $this->compiledTemplates)) {
1023 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: Template ' . $template . ' already compiled. SKIPPED!');
1027 // Search for the template
1028 $foundIndex = array_search($template, $templateMatches[1]);
1030 // Lookup the matching variable data
1031 if (($foundIndex !== false) && (isset($templateMatches[3][$foundIndex]))) {
1032 // Split it up with another reg. exp. into variable=value pairs
1033 preg_match_all($this->regExpVarValue, $templateMatches[3][$foundIndex], $varMatches);
1034 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:varMatches=' . print_r($varMatches, true));
1036 // Assign all variables
1037 $this->assignAllVariables($varMatches);
1040 // Compile the loaded template
1041 $this->compileCode($code, $template);
1044 // Insert all templates
1045 $this->insertAllTemplates($templateMatches);
1050 * Inserts all raw templates into their respective variables
1054 private function insertRawTemplates () {
1055 // Load all templates
1056 foreach ($this->rawTemplates as $template => $content) {
1057 // Set the template as a variable with the content
1058 $this->assignVariable($template, $content);
1063 * Finalizes the compilation of all template variables
1067 private function finalizeVariableCompilation () {
1069 $content = $this->getRawTemplateData();
1070 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: content before=' . strlen($content) . ' (' . md5($content) . ')');
1072 // Do we have the stack?
1073 if (!$this->isVarStackSet('general')) {
1074 // Abort here silently
1075 // @TODO This silent abort should be logged, maybe.
1079 // Walk through all variables
1080 foreach ($this->getVarStack('general') as $currEntry) {
1081 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: name=' . $currEntry['name'] . ', value=<pre>' . htmlentities($currEntry['value']) . '</pre>');
1082 // Replace all [$var] or {?$var?} with the content
1083 // @TODO Old behaviour, will become obsolete!
1084 $content = str_replace('$content[' . $currEntry['name'] . ']', $currEntry['value'], $content);
1086 // @TODO Yet another old way
1087 $content = str_replace('[' . $currEntry['name'] . ']', $currEntry['value'], $content);
1089 // The new behaviour
1090 $content = str_replace('{?' . $currEntry['name'] . '?}', $currEntry['value'], $content);
1093 // Set the content back
1094 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: content after=' . strlen($content) . ' (' . md5($content) . ')');
1095 $this->setRawTemplateData($content);
1099 * Load a specified HTML template into the engine
1101 * @param $template The web template we shall load which is located in
1105 public function loadHtmlTemplate (string $template) {
1106 // Set template type
1107 $this->setTemplateType(FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('html_template_type'));
1109 // Load the special template
1110 $this->loadTemplate($template);
1114 * Assign (add) a given variable with a value
1116 * @param $variableName The variable we are looking for
1117 * @param $value The value we want to store in the variable
1119 * @throws InvalidArgumentException If the variable name is left empty
1121 public final function assignVariable (string $variableName, $value) {
1122 // Validate parameter
1123 if (empty($variableName)) {
1124 // Throw an exception
1125 throw new InvalidArgumentException('Parameter "variableName" is empty');
1128 // Replace all dashes to underscores to match variables with configuration entries
1129 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
1131 // First search for the variable if it was already added
1132 $index = $this->getVariableIndex($variableName);
1135 if ($index === false) {
1136 // Add it to the stack
1137 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:ADD: ' . $variableName . '[' . gettype($value) . ']=' . $value);
1138 $this->addVariable($variableName, $value);
1139 } elseif (!empty($value)) {
1140 // Modify the stack entry
1141 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:MOD: ' . $variableName . '[' . gettype($value) . ']=' . $value);
1142 $this->modifyVariable($variableName, $value);
1147 * Removes a given variable
1149 * @param $variableName The variable we are looking for
1150 * @param $variableGroup Name of variable group (default: 'general')
1153 public final function removeVariable (string $variableName, string $variableGroup = 'general') {
1154 // First search for the variable if it was already added
1155 $index = $this->getVariableIndex($variableName, $variableGroup);
1158 if ($index !== false) {
1159 // Remove this variable
1160 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:UNSET: variableGroup=' . $variableGroup . ',variableName=' . $variableName . ',index=' . $index);
1161 $this->unsetVariableStackOffset($index, $variableGroup);
1166 * Assigns the last loaded raw template content with a given variable
1168 * @param $templateName Name of the template we want to assign
1169 * @param $variableName Name of the variable we want to assign
1172 public function assignTemplateWithVariable (string $templateName, string $variableName) {
1173 // Get the content from last loaded raw template
1174 $content = $this->getRawTemplateData();
1176 // Assign the variable
1177 $this->assignVariable($variableName, $content);
1179 // Purge raw content
1180 $this->setRawTemplateData('');
1184 * Assign a given congfiguration variable with a value
1186 * @param $variableName The configuration variable we want to assign
1189 public function assignConfigVariable (string $variableName) {
1190 // Replace all dashes to underscores to match variables with configuration entries
1191 $variableName = trim(StringUtils::convertDashesToUnderscores($variableName));
1193 // Sweet and simple...
1194 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: variableName=' . $variableName . ',getConfigEntry()=' . FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($variableName));
1195 $this->assignVariable($variableName, FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($variableName));
1199 * Assigns a lot variables into the stack of currently loaded template.
1200 * This method should only be used in very rare circumstances, e.g. when
1201 * you have to copy a whole set of variables into the template engine.
1202 * Before you use this method, please make sure you have considered all
1203 * other possiblities.
1205 * @param $variables An array with variables to be assigned
1208 public function assignMultipleVariables (array $variables) {
1210 foreach ($variables as $name => $value) {
1211 // Set variable with name for 'config' group
1212 $this->assignVariable($name, $value);
1217 * Assigns all the application data with template variables
1221 public function assignApplicationData () {
1222 // Get application instance
1223 $applicationInstance = GenericRegistry::getRegistry()->getInstance('application');
1225 // Get long name and assign it
1226 $this->assignVariable('app_full_name' , $applicationInstance->getAppName());
1228 // Get short name and assign it
1229 $this->assignVariable('app_short_name', $applicationInstance->getAppShortName());
1231 // Get version number and assign it
1232 $this->assignVariable('app_version' , $applicationInstance->getAppVersion());
1234 // Assign extra application-depending data
1235 $applicationInstance->assignExtraTemplateData($this);
1239 * Load a specified code template into the engine
1241 * @param $template The code template we shall load which is
1242 * located in 'code' by default
1245 public function loadCodeTemplate (string $template) {
1246 // Set template type
1247 $this->setTemplateType(FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('code_' . FrameworkBootstrap::getRequestTypeFromSystem() . '_template_type'));
1249 // Load the special template
1250 $this->loadTemplate($template);
1254 * Load a specified email template into the engine
1256 * @param $template The email template we shall load which is
1257 * located in 'emails' by default
1260 public function loadEmailTemplate (string $template) {
1261 // Set template type
1262 $this->setTemplateType(FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('email_template_type'));
1264 // Load the special template
1265 $this->loadTemplate($template);
1269 * Compiles configuration place-holders in all variables. This 'walks'
1270 * through the variable group 'general'. It interprets all values from that
1271 * variables as configuration entries after compiling them.
1275 public final function compileConfigInVariables () {
1276 // Do we have the stack?
1277 if (!$this->isVarStackSet('general')) {
1278 // Abort here silently
1279 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: Aborted, variable stack general not found!');
1283 // Iterate through all general variables
1284 foreach ($this->getVarStack('general') as $index => $currVariable) {
1285 // Compile the value
1286 $value = $this->compileRawCode($this->readVariable($currVariable['name']), true);
1289 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: name=' . $currVariable['name'] . ',value=' . $value);
1291 // Remove it from stack
1292 $this->removeVariable($currVariable['name'], 'general');
1293 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: value='. $value . ',name=' . $currVariable['name'] . ',index=' . $index);
1295 // Is it a configuration key?
1296 if (FrameworkBootstrap::getConfigurationInstance()->isConfigurationEntrySet($value)) {
1297 // The value itself is a configuration entry
1298 $this->assignConfigVariable($value);
1300 // Re-assign the value directly
1301 $this->assignVariable($currVariable['name'], $value);
1307 * Compile all variables by inserting their respective values
1310 * @todo Make this code some nicer...
1312 public final function compileVariables () {
1313 // Initialize the $content array
1314 $validVar = FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('tpl_valid_var');
1317 // Iterate through all general variables
1318 foreach ($this->getVarStack('general') as $currVariable) {
1319 // Transfer it's name/value combination to the $content array
1320 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:' . $currVariable['name'] . '=<pre>' . htmlentities($currVariable['value']).'</pre>');
1321 $dummy[$currVariable['name']] = $currVariable['value'];
1324 // Set the new variable (don't remove the second dollar!)
1325 $$validVar = $dummy;
1327 // Remove some variables
1329 unset($currVariable);
1331 // Run the compilation three times to get content from helper classes in
1334 // Finalize the compilation of template variables
1335 $this->finalizeVariableCompilation();
1337 // Prepare the eval() command for comiling the template
1338 $eval = sprintf('$result = "%s";',
1339 addslashes($this->getRawTemplateData())
1342 // This loop does remove the backslashes (\) in PHP parameters
1343 while (strpos($eval, $this->codeBegin) !== false) {
1344 // Get left part before "<?"
1345 $evalLeft = substr($eval, 0, strpos($eval, $this->codeBegin));
1347 // Get all from right of "<?"
1348 $evalRight = substr($eval, (strpos($eval, $this->codeBegin) + 5));
1350 // Cut middle part out and remove escapes
1351 $evalMiddle = trim(substr($evalRight, 0, strpos($evalRight, $this->codeEnd)));
1352 $evalMiddle = stripslashes($evalMiddle);
1354 // Remove the middle part from right one
1355 $evalRight = substr($evalRight, (strpos($evalRight, $this->codeEnd) + 2));
1357 // And put all together
1358 $eval = sprintf('%s<%%php %s %%>%s', $evalLeft, $evalMiddle, $evalRight);
1361 // Prepare PHP code for eval() command
1362 $eval = str_replace(
1371 // Run the constructed command. This will "compile" all variables in
1374 // Goes something wrong?
1375 if ((!isset($result)) || (empty($result))) {
1376 // Output eval command
1377 self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('Failed eval() code: <pre>%s</pre>', $this->markupCode($eval, true)), true);
1379 // Output backtrace here
1380 $this->debugBackTrace();
1383 // Set raw template data
1384 $this->setRawTemplateData($result);
1388 // Final variable assignment
1389 $this->finalizeVariableCompilation();
1391 // Set the new content
1392 $this->setCompiledData($this->getRawTemplateData());
1396 * Compile all required templates into the current loaded one
1399 * @throws UnexpectedTemplateTypeException If the template type is
1401 * @throws InvalidArrayCountException If an unexpected array
1402 * count has been found
1404 public function compileTemplate () {
1405 // Get code type to make things shorter
1406 $codeType = FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('code_' . FrameworkBootstrap::getRequestTypeFromSystem() . '_template_type');
1408 // We will only work with template type "code" from configuration
1409 if (substr($this->getTemplateType(), 0, strlen($codeType)) != $codeType) {
1411 throw new UnexpectedTemplateTypeException(array($this, $this->getTemplateType(), FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('code_' . FrameworkBootstrap::getRequestTypeFromSystem() . '_template_type')), self::EXCEPTION_TEMPLATE_TYPE_IS_UNEXPECTED);
1414 // Get the raw data.
1415 $rawData = $this->getRawTemplateData();
1417 // Remove double spaces and trim leading/trailing spaces
1418 $rawData = trim(str_replace(' ', ' ', $rawData));
1420 // Search for raw variables
1421 $this->extractVariablesFromRawData($rawData);
1423 // Search for code-tags which are {? ?}
1424 preg_match_all($this->regExpCodeTags, $rawData, $templateMatches);
1427 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:templateMatches=' . print_r($templateMatches , true));
1429 // Analyze the matches array
1430 if ((is_array($templateMatches)) && (count($templateMatches) == 4) && (count($templateMatches[0]) > 0)) {
1431 // Entries are found:
1433 // The main analysis
1434 $this->analyzeTemplate($templateMatches);
1436 // Compile raw template data
1437 $this->compileRawTemplateData($templateMatches);
1439 // Are there some raw templates left for loading?
1440 $this->loadExtraRawTemplates();
1442 // Are some raw templates found and loaded?
1443 if (count($this->rawTemplates) > 0) {
1444 // Insert all raw templates
1445 $this->insertRawTemplates();
1447 // Remove the raw template content as well
1448 $this->setRawTemplateData('');
1454 * Loads a given view helper (by name)
1456 * @param $helperName The helper's name
1459 protected function loadViewHelper (string $helperName) {
1460 // Is this view helper loaded?
1461 if (!isset($this->helpers[$helperName])) {
1462 // Create a class name
1463 $className = StringUtils::convertToClassName($helperName) . 'ViewHelper';
1465 // Generate new instance
1466 $this->helpers[$helperName] = ObjectFactory::createObjectByName($className);
1469 // Return the requested instance
1470 return $this->helpers[$helperName];
1474 * Transfers the content of this template engine to a given response instance
1476 * @param $responseInstance An instance of a Responseable class
1479 public function transferToResponse (Responseable $responseInstance) {
1480 // Get the content and set it in response class
1481 $responseInstance->writeToBody($this->getCompiledData());
1485 * "Compiles" a variable by replacing {?var?} with it's content
1487 * @param $rawCode Raw code to compile
1488 * @param $setMatchAsCode Sets $match if readVariable() returns empty result
1489 * @return $rawCode Compile code with inserted variable value
1491 public function compileRawCode (string $rawCode, bool $setMatchAsCode = false) {
1492 // Find the variables
1493 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:rawCode=<pre>' . htmlentities($rawCode) . '</pre>');
1494 preg_match_all($this->regExpVarValue, $rawCode, $varMatches);
1496 // Compile all variables
1497 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:<pre>' . print_r($varMatches, true) . '</pre>');
1498 foreach ($varMatches[0] as $match) {
1499 // Add variable tags around it
1500 $varCode = '{?' . $match . '?}';
1503 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:varCode=' . $varCode);
1505 // Is the variable found in code? (safes some calls)
1506 if (strpos($rawCode, $varCode) !== false) {
1508 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: match=' . $match . ',rawCode[' . gettype($rawCode) . ']=' . $rawCode);
1510 // Use $match as new value or $value from read variable?
1511 if ($setMatchAsCode === true) {
1513 $rawCode = str_replace($varCode, $match, $rawCode);
1515 // Read the variable
1516 $value = $this->readVariable($match);
1519 $rawCode = str_replace($varCode, $value, $rawCode);
1524 // Return the compiled data
1525 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE:rawCode=<pre>' . htmlentities($rawCode) . '</pre>');
1530 * Getter for variable group array
1532 * @return $variableGroups All variable groups
1534 public final function getVariableGroups () {
1535 return $this->variableGroups;
1539 * Renames a variable in code and in stack
1541 * @param $oldName Old name of variable
1542 * @param $newName New name of variable
1545 public function renameVariable (string $oldName, string $newName) {
1546 //* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-TEMPLATE: oldName=' . $oldName . ', newName=' . $newName);
1547 // Get raw template code
1548 $rawData = $this->getRawTemplateData();
1551 $rawData = str_replace($oldName, $newName, $rawData);
1553 // Set the code back
1554 $this->setRawTemplateData($rawData);
1558 * Renders the given XML content
1560 * @param $content Valid XML content or if not set the current loaded raw content
1562 * @throws XmlParserException If an XML error was found
1564 public function renderXmlContent (string $content = NULL) {
1565 // Is the content set?
1566 if (is_null($content)) {
1567 // Get current content
1568 $content = $this->getRawTemplateData();
1571 // Get a XmlParser instance
1572 $parserInstance = ObjectFactory::createObjectByConfiguredName('xml_parser_class', array($this));
1574 // Check if XML compacting is enabled
1575 if ($this->isXmlCompactingEnabled()) {
1576 // Yes, so get a decorator class for transparent compacting
1577 $parserInstance = ObjectFactory::createObjectByConfiguredName('deco_compacting_xml_parser_class', array($parserInstance));
1580 // Parse the XML document
1581 $parserInstance->parseXmlContent($content);
1585 * Enables or disables language support
1587 * @param $languageSupport New language support setting
1590 public final function enableLanguageSupport (bool $languageSupport = true) {
1591 $this->languageSupport = $languageSupport;
1595 * Checks whether language support is enabled
1597 * @return $languageSupport Whether language support is enabled or disabled
1599 public final function isLanguageSupportEnabled () {
1600 return $this->languageSupport;
1604 * Enables or disables XML compacting
1606 * @param $xmlCompacting New XML compacting setting
1609 public final function enableXmlCompacting (bool $xmlCompacting = true) {
1610 $this->xmlCompacting = $xmlCompacting;
1614 * Checks whether XML compacting is enabled
1616 * @return $xmlCompacting Whether XML compacting is enabled or disabled
1618 public final function isXmlCompactingEnabled () {
1619 return $this->xmlCompacting;
1623 * Setter for stacker instance
1625 * @param $stackInstance An instance of an stacker
1628 protected final function setStackInstance (Stackable $stackInstance) {
1629 $this->stackInstance = $stackInstance;
1633 * Getter for stacker instance
1635 * @return $stackInstance An instance of an stacker
1637 public final function getStackInstance () {
1638 return $this->stackInstance;
1642 * Removes all commentd, tabs and new-line characters to compact the content
1644 * @param $uncompactedContent The uncompacted content
1645 * @return $compactedContent The compacted content
1647 public function compactContent (string $uncompactedContent) {
1648 // First, remove all tab/new-line/revert characters
1649 $compactedContent = str_replace(chr(9), '', str_replace(chr(10), '', str_replace(chr(13), '', $uncompactedContent)));
1651 // Then regex all comments like <!-- //--> away
1652 preg_match_all($this->regExpComments, $compactedContent, $matches);
1654 // Do we have entries?
1655 if (isset($matches[0][0])) {
1657 foreach ($matches[0] as $match) {
1659 $compactedContent = str_replace($match, '', $compactedContent);
1663 // Set the content again
1664 $this->setRawTemplateData($compactedContent);
1666 // Return compacted content
1667 return $compactedContent;