634 lines
21 KiB
PHP
634 lines
21 KiB
PHP
<?php
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/**
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* SilverStripe-variant of the "gettext" tool:
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* Parses the string content of all PHP-files and SilverStripe templates
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* for ocurrences of the _t() translation method. Also uses the {@link i18nEntityProvider}
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* interface to get dynamically defined entities by executing the
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* {@link provideI18nEntities()} method on all implementors of this interface.
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*
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* Collects all found entities (and their natural language text for the default locale)
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* into language-files for each module in an array notation. Creates or overwrites these files,
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* e.g. framework/lang/en_US.php.
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*
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* The collector needs to be run whenever you make new translatable
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* entities available. Please don't alter the arrays in language tables manually.
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*
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* Usage through URL: http://localhost/dev/tasks/i18nTextCollectorTask
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* Usage through URL (module-specific): http://localhost/dev/tasks/i18nTextCollectorTask/?module=mymodule
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* Usage on CLI: sake dev/tasks/i18nTextCollectorTask
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* Usage on CLI (module-specific): sake dev/tasks/i18nTextCollectorTask module=mymodule
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*
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* @author Bernat Foj Capell <bernat@silverstripe.com>
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* @author Ingo Schommer <FIRSTNAME@silverstripe.com>
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* @package framework
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* @subpackage i18n
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* @uses i18nEntityProvider
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* @uses i18n
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*/
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class i18nTextCollector extends Object {
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protected $defaultLocale;
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/**
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* @var string $basePath The directory base on which the collector should act.
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* Usually the webroot set through {@link Director::baseFolder()}.
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* @todo Fully support changing of basePath through {@link SSViewer} and {@link ManifestBuilder}
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*/
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public $basePath;
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public $baseSavePath;
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/**
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* @var i18nTextCollector_Writer
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*/
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protected $writer;
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/**
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* @param $locale
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*/
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public function __construct($locale = null) {
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$this->defaultLocale = ($locale) ? $locale : i18n::get_lang_from_locale(i18n::default_locale());
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$this->basePath = Director::baseFolder();
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$this->baseSavePath = Director::baseFolder();
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parent::__construct();
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}
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public function setWriter($writer) {
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$this->writer = $writer;
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}
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public function getWriter() {
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if(!$this->writer) $this->writer = new i18nTextCollector_Writer_RailsYaml();
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return $this->writer;
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}
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/**
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* This is the main method to build the master string tables with the original strings.
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* It will search for existent modules that use the i18n feature, parse the _t() calls
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* and write the resultant files in the lang folder of each module.
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*
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* @uses DataObject->collectI18nStatics()
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*
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* @param array $restrictToModules
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*/
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public function run($restrictToModules = null) {
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//Debug::message("Collecting text...", false);
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$modules = scandir($this->basePath);
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$themeFolders = array();
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// A master string tables array (one mst per module)
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$entitiesByModule = array();
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foreach($modules as $index => $module){
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if($module != 'themes') continue;
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else {
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$themes = scandir($this->basePath."/themes");
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if(count($themes)){
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foreach($themes as $theme) {
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if(is_dir($this->basePath."/themes/".$theme)
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&& substr($theme,0,1) != '.'
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&& is_dir($this->basePath."/themes/".$theme."/templates")){
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$themeFolders[] = 'themes/'.$theme;
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}
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}
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}
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$themesInd = $index;
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}
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}
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if(isset($themesInd)) {
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unset($modules[$themesInd]);
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}
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$modules = array_merge($modules, $themeFolders);
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foreach($modules as $module) {
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// Only search for calls in folder with a _config.php file (which means they are modules, including
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// themes folder)
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$isValidModuleFolder = (
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is_dir("$this->basePath/$module")
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&& is_file("$this->basePath/$module/_config.php")
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&& substr($module,0,1) != '.'
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) || (
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substr($module,0,7) == 'themes/'
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&& is_dir("$this->basePath/$module")
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);
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if(!$isValidModuleFolder) continue;
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// we store the master string tables
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$processedEntities = $this->processModule($module);
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if(isset($entitiesByModule[$module])) {
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$entitiesByModule[$module] = array_merge_recursive($entitiesByModule[$module], $processedEntities);
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} else {
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$entitiesByModule[$module] = $processedEntities;
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}
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// extract all entities for "foreign" modules (fourth argument)
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foreach($entitiesByModule[$module] as $fullName => $spec) {
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if(isset($spec[2]) && $spec[2] && $spec[2] != $module) {
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$othermodule = $spec[2];
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if(!isset($entitiesByModule[$othermodule])) $entitiesByModule[$othermodule] = array();
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unset($spec[2]);
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$entitiesByModule[$othermodule][$fullName] = $spec;
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unset($entitiesByModule[$module][$fullName]);
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}
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}
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}
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// Restrict modules we update to just the specified ones (if any passed)
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if($restrictToModules && count($restrictToModules)) {
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foreach (array_diff(array_keys($entitiesByModule), $restrictToModules) as $module) {
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unset($entitiesByModule[$module]);
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}
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}
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// Write each module language file
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if($entitiesByModule) foreach($entitiesByModule as $module => $entities) {
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$this->getWriter()->write($entities, $this->defaultLocale, $this->baseSavePath . '/' . $module);
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}
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}
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/**
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* Builds a master string table from php and .ss template files for the module passed as the $module param
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* @see collectFromCode() and collectFromTemplate()
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*
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* @param string $module A module's name or just 'themes'
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* @return array $entities An array of entities found in the files that comprise the module
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* @todo Why the type juggling for $this->collectFromBlah()? They always return arrays.
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*/
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protected function processModule($module) {
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$entities = array();
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// Search for calls in code files if these exists
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$fileList = array();
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if(is_dir("$this->basePath/$module/code")) {
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$fileList = $this->getFilesRecursive("$this->basePath/$module/code");
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} else if($module == FRAMEWORK_DIR || substr($module, 0, 7) == 'themes/') {
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// framework doesn't have the usual module structure, so we'll scan all subfolders
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$fileList = $this->getFilesRecursive("$this->basePath/$module", null, null, '/\/(tests|dev)$/');
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}
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foreach($fileList as $filePath) {
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// exclude ss-templates, they're scanned separately
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if(substr($filePath,-3) == 'php') {
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$content = file_get_contents($filePath);
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$entities = array_merge($entities,(array)$this->collectFromCode($content, $module));
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$entities = array_merge($entities, (array)$this->collectFromEntityProviders($filePath, $module));
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}
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}
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// Search for calls in template files if these exists
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if(is_dir("$this->basePath/$module/")) {
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$fileList = $this->getFilesRecursive("$this->basePath/$module/", null, 'ss');
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foreach($fileList as $index => $filePath) {
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$content = file_get_contents($filePath);
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// templates use their filename as a namespace
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$namespace = basename($filePath);
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$entities = array_merge($entities, (array)$this->collectFromTemplate($content, $module, $namespace));
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}
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}
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// sort for easier lookup and comparison with translated files
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ksort($entities);
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return $entities;
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}
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/**
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* Extracts translatables from .php files.
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*
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* @param string $content The text content of a parsed template-file
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* @param string $module Module's name or 'themes'
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* @return array $entities An array of entities representing the extracted translation function calls in code
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*/
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public function collectFromCode($content, $module) {
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$entities = array();
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$tokens = token_get_all("<?php\n" . $content);
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$inTransFn = false;
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$inConcat = false;
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$finalTokenDueToArray = false;
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$currentEntity = array();
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foreach($tokens as $token) {
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if(is_array($token)) {
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list($id, $text) = $token;
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if($inTransFn && $id == T_ARRAY) {
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//raw 'array' token found in _t function, stop processing the tokens for this _t now
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$finalTokenDueToArray = true;
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}
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if($id == T_STRING && $text == '_t') {
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// start definition
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$inTransFn = true;
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} elseif($inTransFn && $id == T_VARIABLE) {
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// Dynamic definition from provideEntities - skip
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$inTransFn = false;
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$inConcat = false;
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$currentEntity = array();
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} elseif($inTransFn && $id == T_CONSTANT_ENCAPSED_STRING) {
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// Fixed quoting escapes, and remove leading/trailing quotes
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if(preg_match('/^\'/', $text)) {
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$text = str_replace("\'", "'", $text);
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$text = preg_replace('/^\'/', '', $text);
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$text = preg_replace('/\'$/', '', $text);
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} else {
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$text = str_replace('\"', '"', $text);
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$text = preg_replace('/^"/', '', $text);
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$text = preg_replace('/"$/', '', $text);
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}
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if($inConcat) {
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$currentEntity[count($currentEntity)-1] .= $text;
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} else {
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$currentEntity[] = $text;
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}
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}
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} elseif($inTransFn && $token == '.') {
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$inConcat = true;
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} elseif($inTransFn && $token == ',') {
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$inConcat = false;
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} elseif($inTransFn && ($token == ')' || $finalTokenDueToArray || $token == '[')) {
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// finalize definition
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$inTransFn = false;
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$inConcat = false;
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$entity = array_shift($currentEntity);
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$entities[$entity] = $currentEntity;
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$currentEntity = array();
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$finalTokenDueToArray = false;
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}
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}
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foreach($entities as $entity => $spec) {
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// call without master language definition
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if(!$spec) {
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unset($entities[$entity]);
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continue;
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}
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unset($entities[$entity]);
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$entities[$this->normalizeEntity($entity, $module)] = $spec;
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}
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ksort($entities);
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return $entities;
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}
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/**
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* Extracts translatables from .ss templates (Self referencing)
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*
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* @param string $content The text content of a parsed template-file
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* @param string $module Module's name or 'themes'
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* @param string $fileName The name of a template file when method is used in self-referencing mode
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* @return array $entities An array of entities representing the extracted template function calls
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*
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* @todo Why the type juggling for $this->collectFromTemplate()? It always returns an array.
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*/
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public function collectFromTemplate($content, $fileName, $module, &$parsedFiles = array()) {
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$entities = array();
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// Search for included templates
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preg_match_all('/<' . '% include +([A-Za-z0-9_]+) +%' . '>/', $content, $regs, PREG_SET_ORDER);
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foreach($regs as $reg) {
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$includeName = $reg[1];
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$includeFileName = "{$includeName}.ss";
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$filePath = SSViewer::getTemplateFileByType($includeName, 'Includes');
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if(!$filePath) $filePath = SSViewer::getTemplateFileByType($includeName, 'main');
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if($filePath && !in_array($filePath, $parsedFiles)) {
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$parsedFiles[] = $filePath;
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$includeContent = file_get_contents($filePath);
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$entities = array_merge(
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$entities,
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(array)$this->collectFromTemplate($includeContent, $module, $includeFileName, $parsedFiles)
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);
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}
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// @todo Will get massively confused if you include the includer -> infinite loop
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}
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// use parser to extract <%t style translatable entities
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$translatables = i18nTextCollector_Parser::GetTranslatables($content);
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$entities = array_merge($entities,(array)$translatables);
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// use the old method of getting _t() style translatable entities
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// Collect in actual template
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if(preg_match_all('/(_t\([^\)]*?\))/ms', $content, $matches)) {
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foreach($matches[1] as $match) {
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$entities = array_merge($entities, $this->collectFromCode($match, $module));
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}
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}
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foreach($entities as $entity => $spec) {
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unset($entities[$entity]);
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$entities[$this->normalizeEntity($entity, $module)] = $spec;
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}
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ksort($entities);
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return $entities;
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}
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/**
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* @uses i18nEntityProvider
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*/
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public function collectFromEntityProviders($filePath, $module = null) {
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$entities = array();
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// HACK Ugly workaround to avoid "Cannot redeclare class PHPUnit_Framework_TestResult" error
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// when running text collector with PHPUnit 3.4. There really shouldn't be any dependencies
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// here, but the class reflection enforces autloading of seemingly unrelated classes.
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// The main problem here is the CMSMenu class, which iterates through test classes,
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// which in turn trigger autoloading of PHPUnit.
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$phpunitwrapper = PhpUnitWrapper::inst();
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$phpunitwrapper->init();
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$classes = ClassInfo::classes_for_file($filePath);
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if($classes) foreach($classes as $class) {
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// Not all classes can be instanciated without mandatory arguments,
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// so entity collection doesn't work for all SilverStripe classes currently
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// Requires PHP 5.1+
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if(class_exists($class) && in_array('i18nEntityProvider', class_implements($class))) {
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$reflectionClass = new ReflectionClass($class);
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if($reflectionClass->isAbstract()) continue;
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$obj = singleton($class);
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$entities = array_merge($entities,(array)$obj->provideI18nEntities());
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}
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}
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ksort($entities);
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return $entities;
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}
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/**
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* Normalizes enitities with namespaces.
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*
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* @param string $fullName
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* @param string $_namespace
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* @return string|boolean FALSE
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*/
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protected function normalizeEntity($fullName, $_namespace = null) {
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// split fullname into entity parts
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$entityParts = explode('.', $fullName);
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if(count($entityParts) > 1) {
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// templates don't have a custom namespace
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$entity = array_pop($entityParts);
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// namespace might contain dots, so we explode
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$namespace = implode('.',$entityParts);
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} else {
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$entity = array_pop($entityParts);
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$namespace = $_namespace;
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}
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// If a dollar sign is used in the entity name,
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// we can't resolve without running the method,
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// and skip the processing. This is mostly used for
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// dynamically translating static properties, e.g. looping
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// through $db, which are detected by {@link collectFromEntityProviders}.
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if($entity && strpos('$', $entity) !== FALSE) return false;
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return "{$namespace}.{$entity}";
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}
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/**
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* Helper function that searches for potential files (templates and code) to be parsed
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*
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* @param string $folder base directory to scan (will scan recursively)
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* @param array $fileList Array to which potential files will be appended
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* @param string $type Optional, "php" or "ss"
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* @param string $folderExclude Regular expression matching folder names to exclude
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* @return array $fileList An array of files
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*/
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protected function getFilesRecursive($folder, $fileList = null, $type = null, $folderExclude = null) {
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if(!$folderExclude) $folderExclude = '/\/(tests)$/';
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if(!$fileList) $fileList = array();
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$items = scandir($folder);
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$isValidFolder = (
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!in_array('_manifest_exclude', $items)
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&& !preg_match($folderExclude, $folder)
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);
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if($items && $isValidFolder) foreach($items as $item) {
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if(substr($item,0,1) == '.') continue;
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if(substr($item,-4) == '.php' && (!$type || $type == 'php')) {
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$fileList[substr($item,0,-4)] = "$folder/$item";
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} else if(substr($item,-3) == '.ss' && (!$type || $type == 'ss')) {
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$fileList[$item] = "$folder/$item";
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} else if(is_dir("$folder/$item")) {
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$fileList = array_merge(
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$fileList,
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$this->getFilesRecursive("$folder/$item", $fileList, $type, $folderExclude)
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);
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}
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}
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return $fileList;
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}
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public function getDefaultLocale() {
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return $this->defaultLocale;
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}
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public function setDefaultLocale($locale) {
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$this->defaultLocale = $locale;
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}
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}
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/**
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* Allows serialization of entity definitions collected through {@link i18nTextCollector}
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* into a persistent format, usually on the filesystem.
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*/
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interface i18nTextCollector_Writer {
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/**
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* @param Array $entities Map of entity names (incl. namespace) to an numeric array, with at least one element,
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* the original string, and an optional second element, the context.
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* @param String $locale
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* @param String $path The directory base on which the collector should create new lang folders and files.
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* Usually the webroot set through {@link Director::baseFolder()}. Can be overwritten for
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* testing or export purposes.
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* @return Boolean success
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*/
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public function write($entities, $locale, $path);
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}
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/**
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* Legacy writer for 2.x style persistence.
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*/
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class i18nTextCollector_Writer_Php implements i18nTextCollector_Writer {
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public function write($entities, $locale, $path) {
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$php = '';
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$eol = PHP_EOL;
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// Create folder for lang files
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$langFolder = $path . '/lang';
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if(!file_exists($langFolder)) {
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Filesystem::makeFolder($langFolder, Config::inst()->get('Filesystem', 'folder_create_mask'));
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touch($langFolder . '/_manifest_exclude');
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}
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// Open the English file and write the Master String Table
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$langFile = $langFolder . '/' . $locale . '.php';
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if($fh = fopen($langFile, "w")) {
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if($entities) foreach($entities as $fullName => $spec) {
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$php .= $this->langArrayCodeForEntitySpec($fullName, $spec, $locale);
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}
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// test for valid PHP syntax by eval'ing it
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try{
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eval($php);
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} catch(Exception $e) {
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throw new LogicException(
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'i18nTextCollector->writeMasterStringFile(): Invalid PHP language file. Error: ' . $e->toString());
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}
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fwrite($fh, "<"."?php{$eol}{$eol}global \$lang;{$eol}{$eol}" . $php . "{$eol}");
|
|
fclose($fh);
|
|
|
|
} else {
|
|
throw new LogicException("Cannot write language file! Please check permissions of $langFolder/"
|
|
. $locale . ".php");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Input for langArrayCodeForEntitySpec() should be suitable for insertion
|
|
* into single-quoted strings, so needs to be escaped already.
|
|
*
|
|
* @param string $entity The entity name, e.g. CMSMain.BUTTONSAVE
|
|
*/
|
|
public function langArrayCodeForEntitySpec($entityFullName, $entitySpec, $locale) {
|
|
$php = '';
|
|
$eol = PHP_EOL;
|
|
|
|
$entityParts = explode('.', $entityFullName);
|
|
if(count($entityParts) > 1) {
|
|
// templates don't have a custom namespace
|
|
$entity = array_pop($entityParts);
|
|
// namespace might contain dots, so we implode back
|
|
$namespace = implode('.',$entityParts);
|
|
} else {
|
|
user_error(
|
|
"i18nTextCollector::langArrayCodeForEntitySpec(): Wrong entity format for $entityFullName with values "
|
|
. var_export($entitySpec, true),
|
|
E_USER_WARNING
|
|
);
|
|
return false;
|
|
}
|
|
|
|
$value = $entitySpec[0];
|
|
$comment = (isset($entitySpec[1])) ? addcslashes($entitySpec[1],'\'') : null;
|
|
|
|
$php .= '$lang[\'' . $locale . '\'][\'' . $namespace . '\'][\'' . $entity . '\'] = ';
|
|
$php .= (count($entitySpec) == 1) ? var_export($entitySpec[0], true) : var_export($entitySpec, true);
|
|
$php .= ";$eol";
|
|
|
|
// Normalise linebreaks due to fix var_export output
|
|
return Convert::nl2os($php, $eol);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Writes files compatible with {@link i18nRailsYamlAdapter}.
|
|
*/
|
|
class i18nTextCollector_Writer_RailsYaml implements i18nTextCollector_Writer {
|
|
|
|
public function write($entities, $locale, $path) {
|
|
$content = '';
|
|
|
|
// Create folder for lang files
|
|
$langFolder = $path . '/lang';
|
|
if(!file_exists($langFolder)) {
|
|
Filesystem::makeFolder($langFolder, Config::inst()->get('Filesystem', 'folder_create_mask'));
|
|
touch($langFolder . '/_manifest_exclude');
|
|
}
|
|
|
|
// Open the English file and write the Master String Table
|
|
$langFile = $langFolder . '/' . $locale . '.yml';
|
|
if($fh = fopen($langFile, "w")) {
|
|
fwrite($fh, $this->getYaml($entities,$locale));
|
|
fclose($fh);
|
|
} else {
|
|
throw new LogicException("Cannot write language file! Please check permissions of $langFile");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public function getYaml($entities, $locale) {
|
|
// Use the Zend copy of this script to prevent class conflicts when RailsYaml is included
|
|
require_once 'thirdparty/zend_translate_railsyaml/library/Translate/Adapter/thirdparty/sfYaml/lib'
|
|
. '/sfYamlDumper.php';
|
|
|
|
// Unflatten array
|
|
$entitiesNested = array();
|
|
foreach($entities as $entity => $spec) {
|
|
// Legacy support: Don't count *.ss as namespace
|
|
$entity = preg_replace('/\.ss\./', '___ss.', $entity);
|
|
$parts = explode('.', $entity);
|
|
$currLevel = &$entitiesNested;
|
|
while($part = array_shift($parts)) {
|
|
$part = str_replace('___ss', '.ss', $part);
|
|
if(!isset($currLevel[$part])) $currLevel[$part] = array();
|
|
$currLevel = &$currLevel[$part];
|
|
}
|
|
$currLevel = $spec[0];
|
|
}
|
|
|
|
// Write YAML
|
|
$yamlHandler = new sfYaml();
|
|
// TODO Dumper can't handle YAML comments, so the context information is currently discarded
|
|
return $yamlHandler->dump(array($locale => $entitiesNested), 99);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parser that scans through a template and extracts the parameters to the _t and <%t calls
|
|
*/
|
|
class i18nTextCollector_Parser extends SSTemplateParser {
|
|
|
|
private static $entities = array();
|
|
|
|
private static $currentEntity = array();
|
|
|
|
public function Translate__construct(&$res) {
|
|
self::$currentEntity = array(null,null,null); //start with empty array
|
|
}
|
|
|
|
public function Translate_Entity(&$res, $sub) {
|
|
self::$currentEntity[0] = $sub['text']; //entity
|
|
}
|
|
|
|
public function Translate_Default(&$res, $sub) {
|
|
self::$currentEntity[1] = $sub['String']['text']; //value
|
|
}
|
|
|
|
public function Translate_Context(&$res, $sub) {
|
|
self::$currentEntity[2] = $sub['String']['text']; //comment
|
|
}
|
|
|
|
public function Translate__finalise(&$res) {
|
|
// set the entity name and the value (default), as well as the context (comment)
|
|
// priority is no longer used, so that is blank
|
|
self::$entities[self::$currentEntity[0]] = array(self::$currentEntity[1],null,self::$currentEntity[2]);
|
|
}
|
|
|
|
/**
|
|
* Parses a template and returns any translatable entities
|
|
*/
|
|
public static function GetTranslatables($template) {
|
|
self::$entities = array();
|
|
|
|
// Run the parser and throw away the result
|
|
$parser = new i18nTextCollector_Parser($template);
|
|
if(substr($template, 0,3) == pack("CCC", 0xef, 0xbb, 0xbf)) $parser->pos = 3;
|
|
$parser->match_TopTemplate();
|
|
|
|
return self::$entities;
|
|
}
|
|
}
|