Version 1

[yaffs-website] / vendor / symfony / translation / Loader / PoFileLoader.php

diff --git a/vendor/symfony/translation/Loader/PoFileLoader.php b/vendor/symfony/translation/Loader/PoFileLoader.php
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+++ b/vendor/symfony/translation/Loader/PoFileLoader.php
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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation\Loader;
+
+/**
+ * @copyright Copyright (c) 2010, Union of RAD http://union-of-rad.org (http://lithify.me/)
+ * @copyright Copyright (c) 2012, Clemens Tolboom
+ */
+class PoFileLoader extends FileLoader
+{
+    /**
+     * Parses portable object (PO) format.
+     *
+     * From http://www.gnu.org/software/gettext/manual/gettext.html#PO-Files
+     * we should be able to parse files having:
+     *
+     * white-space
+     * #  translator-comments
+     * #. extracted-comments
+     * #: reference...
+     * #, flag...
+     * #| msgid previous-untranslated-string
+     * msgid untranslated-string
+     * msgstr translated-string
+     *
+     * extra or different lines are:
+     *
+     * #| msgctxt previous-context
+     * #| msgid previous-untranslated-string
+     * msgctxt context
+     *
+     * #| msgid previous-untranslated-string-singular
+     * #| msgid_plural previous-untranslated-string-plural
+     * msgid untranslated-string-singular
+     * msgid_plural untranslated-string-plural
+     * msgstr[0] translated-string-case-0
+     * ...
+     * msgstr[N] translated-string-case-n
+     *
+     * The definition states:
+     * - white-space and comments are optional.
+     * - msgid "" that an empty singleline defines a header.
+     *
+     * This parser sacrifices some features of the reference implementation the
+     * differences to that implementation are as follows.
+     * - No support for comments spanning multiple lines.
+     * - Translator and extracted comments are treated as being the same type.
+     * - Message IDs are allowed to have other encodings as just US-ASCII.
+     *
+     * Items with an empty id are ignored.
+     *
+     * {@inheritdoc}
+     */
+    protected function loadResource($resource)
+    {
+        $stream = fopen($resource, 'r');
+
+        $defaults = array(
+            'ids' => array(),
+            'translated' => null,
+        );
+
+        $messages = array();
+        $item = $defaults;
+        $flags = array();
+
+        while ($line = fgets($stream)) {
+            $line = trim($line);
+
+            if ($line === '') {
+                // Whitespace indicated current item is done
+                if (!in_array('fuzzy', $flags)) {
+                    $this->addMessage($messages, $item);
+                }
+                $item = $defaults;
+                $flags = array();
+            } elseif (substr($line, 0, 2) === '#,') {
+                $flags = array_map('trim', explode(',', substr($line, 2)));
+            } elseif (substr($line, 0, 7) === 'msgid "') {
+                // We start a new msg so save previous
+                // TODO: this fails when comments or contexts are added
+                $this->addMessage($messages, $item);
+                $item = $defaults;
+                $item['ids']['singular'] = substr($line, 7, -1);
+            } elseif (substr($line, 0, 8) === 'msgstr "') {
+                $item['translated'] = substr($line, 8, -1);
+            } elseif ($line[0] === '"') {
+                $continues = isset($item['translated']) ? 'translated' : 'ids';
+
+                if (is_array($item[$continues])) {
+                    end($item[$continues]);
+                    $item[$continues][key($item[$continues])] .= substr($line, 1, -1);
+                } else {
+                    $item[$continues] .= substr($line, 1, -1);
+                }
+            } elseif (substr($line, 0, 14) === 'msgid_plural "') {
+                $item['ids']['plural'] = substr($line, 14, -1);
+            } elseif (substr($line, 0, 7) === 'msgstr[') {
+                $size = strpos($line, ']');
+                $item['translated'][(int) substr($line, 7, 1)] = substr($line, $size + 3, -1);
+            }
+        }
+        // save last item
+        if (!in_array('fuzzy', $flags)) {
+            $this->addMessage($messages, $item);
+        }
+        fclose($stream);
+
+        return $messages;
+    }
+
+    /**
+     * Save a translation item to the messages.
+     *
+     * A .po file could contain by error missing plural indexes. We need to
+     * fix these before saving them.
+     *
+     * @param array $messages
+     * @param array $item
+     */
+    private function addMessage(array &$messages, array $item)
+    {
+        if (is_array($item['translated'])) {
+            $messages[stripcslashes($item['ids']['singular'])] = stripcslashes($item['translated'][0]);
+            if (isset($item['ids']['plural'])) {
+                $plurals = $item['translated'];
+                // PO are by definition indexed so sort by index.
+                ksort($plurals);
+                // Make sure every index is filled.
+                end($plurals);
+                $count = key($plurals);
+                // Fill missing spots with '-'.
+                $empties = array_fill(0, $count + 1, '-');
+                $plurals += $empties;
+                ksort($plurals);
+                $messages[stripcslashes($item['ids']['plural'])] = stripcslashes(implode('|', $plurals));
+            }
+        } elseif (!empty($item['ids']['singular'])) {
+            $messages[stripcslashes($item['ids']['singular'])] = stripcslashes($item['translated']);
+        }
+    }
+}