4 files changed, 139 insertions, 0 deletions
diff --git a/extensions/LocalisationUpdate/reader/JSONReader.php b/extensions/LocalisationUpdate/reader/JSONReader.php
new file mode 100644
index 00000000..636168c8
--- /dev/null
+++ b/extensions/LocalisationUpdate/reader/JSONReader.php
@@ -0,0 +1,30 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+/**
+ * Reads MediaWiki JSON i18n files.
+ */
+class LU_JSONReader implements LU_Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	public function parse( $contents ) {
+		$messages = FormatJson::decode( $contents, true );
+		unset( $messages['@metadata'] );
+
+		if ( $this->code ) {
+			return array( $this->code => $messages );
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+}
diff --git a/extensions/LocalisationUpdate/reader/PHPReader.php b/extensions/LocalisationUpdate/reader/PHPReader.php
new file mode 100644
index 00000000..986d7b52
--- /dev/null
+++ b/extensions/LocalisationUpdate/reader/PHPReader.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+/**
+ * Reads MediaWiki PHP i18n files.
+ */
+class LU_PHPReader implements LU_Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	public function parse( $contents ) {
+		if ( strpos( $contents, '$messages' ) === false ) {
+			// This happens for some core languages that only have a fallback.
+			return array();
+		}
+
+		$php = $this->cleanupFile( $contents );
+		$reader = new QuickArrayReader( "<?php $php" );
+		$messages = $reader->getVar( 'messages' );
+
+		if ( $this->code ) {
+			return array( $this->code => $messages );
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+
+	/**
+	 * Removes all unneeded content from a file and returns it.
+	 *
+	 * @param string $contents String
+	 * @return string PHP code without PHP tags
+	 */
+	protected function cleanupFile( $contents ) {
+		// We hate the windows vs linux linebreaks.
+		$contents = preg_replace( '/\r\n?/', "\n", $contents );
+
+		// We only want message arrays.
+		$results = array();
+		preg_match_all( '/\$messages(?:.*\s)*?\);/', $contents, $results );
+
+		// But we want them all in one string.
+		return implode( "\n\n", $results[0] );
+	}
+}
diff --git a/extensions/LocalisationUpdate/reader/Reader.php b/extensions/LocalisationUpdate/reader/Reader.php
new file mode 100644
index 00000000..f55a9372
--- /dev/null
+++ b/extensions/LocalisationUpdate/reader/Reader.php
@@ -0,0 +1,19 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+/**
+ * Interface for file readers.
+ */
+interface LU_Reader {
+	/**
+	 * Returns a list of messages indexed by language code. Example
+	 *  array( 'en' => array( 'key' => 'value' ) );
+	 * @param string $contents File contents as a string.
+	 * @return array
+	 */
+	public function parse( $contents );
+}
diff --git a/extensions/LocalisationUpdate/reader/ReaderFactory.php b/extensions/LocalisationUpdate/reader/ReaderFactory.php
new file mode 100644
index 00000000..530ab3f9
--- /dev/null
+++ b/extensions/LocalisationUpdate/reader/ReaderFactory.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+/**
+ * Constructs readers for files based on the names.
+ */
+class LU_ReaderFactory {
+	/**
+	 * Constructs a suitable reader for a given path.
+	 * @param string $filename Usually a relative path to the file name.
+	 * @return LU_Reader
+	 * @throw MWException
+	 */
+	public function getReader( $filename ) {
+		if ( preg_match( '/i18n\.php$/', $filename ) ) {
+			return new LU_PHPReader();
+		}
+
+		// Ugly hack for core i18n files
+		if ( preg_match( '/Messages(.*)\.php$/', $filename ) ) {
+			$code = Language::getCodeFromFileName( basename( $filename ), 'Messages' );
+			return new LU_PHPReader( $code );
+		}
+
+		if ( preg_match( '/\.json/', $filename ) ) {
+			$code = basename( $filename, '.json' );
+			return new LU_JSONReader( $code );
+		}
+
+		throw new MWException( "Unknown file format: " . $filename );
+	}
+}