--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine-dbal/lib/Doctrine/DBAL/Schema/AbstractAsset.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,143 @@
+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\DBAL\Schema;
+
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+
+/**
+ * The abstract asset allows to reset the name of all assets without publishing this to the public userland.
+ *
+ * This encapsulation hack is necessary to keep a consistent state of the database schema. Say we have a list of tables
+ * array($tableName => Table($tableName)); if you want to rename the table, you have to make sure
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.0
+ * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ */
+abstract class AbstractAsset
+{
+    /**
+     * @var string
+     */
+    protected $_name;
+
+    protected $_quoted = false;
+
+    /**
+     * Set name of this asset
+     *
+     * @param string $name
+     */
+    protected function _setName($name)
+    {
+        if ($this->isQuoted($name)) {
+            $this->_quoted = true;
+            $name = $this->trimQuotes($name);
+        }
+        $this->_name = $name;
+    }
+
+    /**
+     * Check if this identifier is quoted.
+     *
+     * @param  string $identifier
+     * @return bool
+     */
+    protected function isQuoted($identifier)
+    {
+        return (isset($identifier[0]) && ($identifier[0] == '`' || $identifier[0] == '"'));
+    }
+
+    /**
+     * Trim quotes from the identifier.
+     * 
+     * @param  string $identifier
+     * @return string
+     */
+    protected function trimQuotes($identifier)
+    {
+        return trim($identifier, '`"');
+    }
+
+    /**
+     * Return name of this schema asset.
+     * 
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->_name;
+    }
+
+    /**
+     * Get the quoted representation of this asset but only if it was defined with one. Otherwise
+     * return the plain unquoted value as inserted.
+     *
+     * @param AbstractPlatform $platform
+     * @return string
+     */
+    public function getQuotedName(AbstractPlatform $platform)
+    {
+        return ($this->_quoted) ? $platform->quoteIdentifier($this->_name) : $this->_name;
+    }
+
+    /**
+     * Generate an identifier from a list of column names obeying a certain string length.
+     *
+     * This is especially important for Oracle, since it does not allow identifiers larger than 30 chars,
+     * however building idents automatically for foreign keys, composite keys or such can easily create
+     * very long names.
+     *
+     * @param  array $columnNames
+     * @param  string $prefix
+     * @param  int $maxSize
+     * @return string
+     */
+    protected function _generateIdentifierName($columnNames, $prefix='', $maxSize=30)
+    {
+        /*$columnCount = count($columnNames);
+        $postfixLen = strlen($postfix);
+        $parts = array_map(function($columnName) use($columnCount, $postfixLen, $maxSize) {
+            return substr($columnName, -floor(($maxSize-$postfixLen)/$columnCount - 1));
+        }, $columnNames);
+        $parts[] = $postfix;
+
+        $identifier = trim(implode("_", $parts), '_');
+        // using implicit schema support of DB2 and Postgres there might be dots in the auto-generated
+        // identifier names which can easily be replaced by underscores.
+        $identifier = str_replace(".", "_", $identifier);
+
+        if (is_numeric(substr($identifier, 0, 1))) {
+            $identifier = "i" . substr($identifier, 0, strlen($identifier)-1);
+        }
+
+        return $identifier;*/
+
+
+        $hash = implode("", array_map(function($column) {
+            return dechex(crc32($column));
+        }, $columnNames));
+        return substr(strtoupper($prefix . "_" . $hash), 0, $maxSize);
+    }
+}
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