first commit

2018-08-01 16:00:05 +02:00
commit 944fd76206
3205 changed files with 356767 additions and 0 deletions
@@ -0,0 +1,160 @@
+<?php
+namespace RocketTheme\Toolbox\File;
+
+/**
+ * Implements Gettext Mo File reader (readonly).
+ *
+ * @package RocketTheme\Toolbox\File
+ * @author RocketTheme
+ * @license MIT
+ */
+class MoFile extends File
+{
+    /**
+     * @var string
+     */
+    protected $extension = '.mo';
+
+    protected $pos = 0;
+    protected $str;
+    protected $len;
+    protected $endian;
+
+    /**
+     * @var array|File[]
+     */
+    static protected $instances = array();
+
+    /**
+     * File can never be written.
+     *
+     * @return bool
+     */
+    public function writable()
+    {
+        return false;
+    }
+
+    /**
+     * Prevent saving file.
+     *
+     * @throws \BadMethodCallException
+     */
+    public function save($data = null)
+    {
+        throw new \BadMethodCallException('save() not supported for .mo files.');
+    }
+
+    /**
+     * Prevent deleting file from filesystem.
+     *
+     * @return bool
+     */
+    public function delete()
+    {
+        return false;
+    }
+
+    /**
+     * @param $var
+     * @return array
+     * @throws \RuntimeException
+     */
+    public function decode($var)
+    {
+        $this->endian = 'V';
+        $this->str = $var;
+        $this->len = strlen($var);
+
+        $magic = $this->readInt() & 0xffffffff;
+
+        if ($magic === 0x950412de) {
+            // Low endian.
+            $this->endian = 'V';
+        } elseif ($magic === 0xde120495) {
+            // Big endian.
+            $this->endian = 'N';
+        } else {
+            throw new \RuntimeException('Not a Gettext file (.mo).');
+        }
+
+        // Skip revision number.
+        $rev = $this->readInt();
+        // Total count.
+        $total = $this->readInt();
+        // Offset of original table.
+        $originals = $this->readInt();
+        // Offset of translation table.
+        $translations = $this->readInt();
+
+        // Each table consists of string length and offset of the string.
+        $this->seek($originals);
+        $table_originals = $this->readIntArray($total * 2);
+        $this->seek($translations);
+        $table_translations = $this->readIntArray($total * 2);
+
+        $items = [];
+        for ($i = 0; $i < $total; $i++) {
+            $this->seek($table_originals[$i * 2 + 2]);
+
+            // TODO: Original string can have context concatenated on it. We do not yet support that.
+            $original = $this->read($table_originals[$i * 2 + 1]);
+
+            if ($original) {
+                $this->seek($table_translations[$i * 2 + 2]);
+
+                // TODO: Plural forms are stored by letting the plural of the original string follow the singular of the original string, separated through a NUL byte.
+                $translated = $this->read($table_translations[$i * 2 + 1]);
+                $items[$original] = $translated;
+            }
+        }
+
+        return $items;
+    }
+
+    /**
+     * @return int
+     */
+    protected function readInt()
+    {
+        $read = $this->read(4);
+
+        if ($read === false) {
+            return false;
+        }
+
+        $read = unpack($this->endian, $read);
+
+        return array_shift($read);
+    }
+
+    /**
+     * @param $count
+     * @return array
+     */
+    protected function readIntArray($count)
+    {
+        return unpack($this->endian . $count, $this->read(4 * $count));
+    }
+
+    /**
+     * @param $bytes
+     * @return string
+     */
+    private function read($bytes)
+    {
+        $data = substr($this->str, $this->pos, $bytes);
+        $this->seek($this->pos + $bytes);
+        return $data;
+    }
+
+    /**
+     * @param $pos
+     * @return mixed
+     */
+    private function seek($pos)
+    {
+        $this->pos = $pos < $this->len ? $pos : $this->len;
+        return $this->pos;
+    }
+}