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<?php
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require_once __DIR__ . '/I18nData.php';
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require_once __DIR__ . '/I18nFileInterface.php';
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class I18nFile implements I18nFileInterface{
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private $i18nPath;
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public function __construct() {
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$this->i18nPath = __DIR__ . '/../../app/i18n';
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}
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public function load() {
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$i18n = array();
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$dirs = new DirectoryIterator($this->i18nPath);
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foreach ($dirs as $dir) {
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if ($dir->isDot()) {
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continue;
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}
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$files = new DirectoryIterator($dir->getPathname());
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foreach ($files as $file) {
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if (!$file->isFile()) {
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continue;
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}
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$i18n[$dir->getFilename()][$file->getFilename()] = $this->flatten(include $file->getPathname(), $file->getBasename('.php'));
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}
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}
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return new I18nData($i18n);
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}
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public function dump(I18nData $i18n) {
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foreach ($i18n->getData() as $language => $file) {
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$dir = $this->i18nPath . DIRECTORY_SEPARATOR . $language;
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if (!file_exists($dir)) {
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mkdir($dir);
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}
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foreach ($file as $name => $content) {
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$filename = $dir . DIRECTORY_SEPARATOR . $name;
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file_put_contents($filename, $this->format($content));
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}
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}
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}
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/**
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* Flatten an array of translation
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*
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* @param array $translation
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* @param string $prefix
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* @return array
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*/
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private function flatten($translation, $prefix = '') {
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$a = array();
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if ('' !== $prefix) {
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$prefix .= '.';
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}
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foreach ($translation as $key => $value) {
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if (is_array($value)) {
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$a += $this->flatten($value, $prefix . $key);
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} else {
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$a[$prefix . $key] = $value;
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}
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}
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return $a;
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}
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/**
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* Unflatten an array of translation
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*
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* The first key is dropped since it represents the filename and we have
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* no use of it.
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*
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* @param array $translation
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* @return array
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*/
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private function unflatten($translation) {
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$a = array();
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ksort($translation);
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foreach ($translation as $compoundKey => $value) {
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$keys = explode('.', $compoundKey);
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array_shift($keys);
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eval("\$a['" . implode("']['", $keys) . "'] = '" . addcslashes($value, "'") . "';");
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}
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return $a;
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}
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/**
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* Format an array of translation
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*
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* It takes an array of translation and format it to be dumped in a
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* translation file. The array is first converted to a string then some
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* formatting regexes are applied to match the original content.
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*
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* @param array $translation
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* @return string
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*/
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private function format($translation) {
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$translation = var_export($this->unflatten($translation), true);
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$patterns = array(
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'/array \(/',
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'/=>\s*array/',
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'/ {2}/',
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);
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$replacements = array(
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'array(',
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'=> array',
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"\t", // Double quoting is mandatory to have a tab instead of the \t string
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);
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$translation = preg_replace($patterns, $replacements, $translation);
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// Double quoting is mandatory to have new lines instead of \n strings
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return sprintf("<?php\n\nreturn %s;\n", $translation);
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}
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}
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