Refactoring. Removed duplicate code.

Fixed documentation.

Author: udan11

src/Component.php

@@ -10,89 +10,71 @@
  *
  * @package SqlParser
  */
+namespace SqlParser;
 
-namespace {
+require_once 'common.php';
 
-    if (!function_exists('__')) {
+/**
+ * A component (of a statement) is a part of a statement that is common to
+ * multiple query types.
+ *
+ * @category Components
+ * @package  SqlParser
+ * @author   Dan Ungureanu <udan1107@gmail.com>
+ * @license  http://opensource.org/licenses/GPL-2.0 GNU Public License
+ */
+abstract class Component
+{
 
-        /**
-         * Translates the given string.
-         *
-         * @param string $str String to be translated.
-         *
-         * @return string
-         */
-        function __($str)
-        {
-            return $str;
-        }
+    /**
+     * Parses the tokens contained in the given list in the context of the given
+     * parser.
+     *
+     * @param Parser     $parser  The parser that serves as context.
+     * @param TokensList $list    The list of tokens that are being parsed.
+     * @param array      $options Parameters for parsing.
+     *
+     * @throws \Exception Not implemented yet.
+     *
+     * @return mixed
+     */
+    public static function parse(
+        Parser $parser, TokensList $list, array $options = array()
+    ) {
+        // This method should be abstract, but it can't be both static and
+        // abstract.
+        throw new \Exception(\__('Not implemented yet.'));
     }
-}
-
-namespace SqlParser {
 
     /**
-     * A component (of a statement) is a part of a statement that is common to
-     * multiple query types.
+     * Builds the string representation of a component of this type.
+     *
+     * In other words, this function represents the inverse function of
+     * `static::parse`.
      *
-     * @category Components
-     * @package  SqlParser
-     * @author   Dan Ungureanu <udan1107@gmail.com>
-     * @license  http://opensource.org/licenses/GPL-2.0 GNU Public License
+     * @param mixed $component The component to be built.
+     * @param array $options   Parameters for building.
+     *
+     * @throws \Exception Not implemented yet.
+     *
+     * @return string
      */
-    abstract class Component
+    public static function build($component, array $options = array())
     {
+        // This method should be abstract, but it can't be both static and
+        // abstract.
+        throw new \Exception(\__('Not implemented yet.'));
+    }
 
-        /**
-         * Parses the tokens contained in the given list in the context of the given
-         * parser.
-         *
-         * @param Parser     $parser  The parser that serves as context.
-         * @param TokensList $list    The list of tokens that are being parsed.
-         * @param array      $options Parameters for parsing.
-         *
-         * @throws \Exception Not implemented yet.
-         *
-         * @return mixed
-         */
-        public static function parse(
-            Parser $parser, TokensList $list, array $options = array()
-        ) {
-            // This method should be abstract, but it can't be both static and
-            // abstract.
-            throw new \Exception(\__('Not implemented yet.'));
-        }
-
-        /**
-         * Builds the string representation of a component of this type.
-         *
-         * In other words, this function represents the inverse function of
-         * `static::parse`.
-         *
-         * @param mixed $component The component to be built.
-         * @param array $options   Parameters for building.
-         *
-         * @throws \Exception Not implemented yet.
-         *
-         * @return string
-         */
-        public static function build($component, array $options = array())
-        {
-            // This method should be abstract, but it can't be both static and
-            // abstract.
-            throw new \Exception(\__('Not implemented yet.'));
-        }
-
-        /**
-         * Builds the string representation of a component of this type.
-         *
-         * @see static::build
-         *
-         * @return string
-         */
-        public function __toString()
-        {
-            return static::build($this);
-        }
+    /**
+     * Builds the string representation of a component of this type.
+     *
+     * @see static::build
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return static::build($this);
     }
 }