flickr integration

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diff --git a/lib/phpFlickr/PEAR/DB/common.php b/lib/phpFlickr/PEAR/DB/common.php
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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Contains the DB_common base class
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: common.php 32 2005-08-01 06:21:02Z dancoulter $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the PEAR class so it can be extended from
+ */
+require_once 'PEAR.php';
+
+/**
+ * DB_common is the base class from which each database driver class extends
+ *
+ * All common methods are declared here.  If a given DBMS driver contains
+ * a particular method, that method will overload the one here.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_common extends PEAR
+{
+    // {{{ properties
+
+    /**
+     * The current default fetch mode
+     * @var integer
+     */
+    var $fetchmode = DB_FETCHMODE_ORDERED;
+
+    /**
+     * The name of the class into which results should be fetched when
+     * DB_FETCHMODE_OBJECT is in effect
+     *
+     * @var string
+     */
+    var $fetchmode_object_class = 'stdClass';
+
+    /**
+     * Was a connection present when the object was serialized()?
+     * @var bool
+     * @see DB_common::__sleep(), DB_common::__wake()
+     */
+    var $was_connected = null;
+
+    /**
+     * The most recently executed query
+     * @var string
+     */
+    var $last_query = '';
+
+    /**
+     * Run-time configuration options
+     *
+     * The 'optimize' option has been deprecated.  Use the 'portability'
+     * option instead.
+     *
+     * @var array
+     * @see DB_common::setOption()
+     */
+    var $options = array(
+        'result_buffering' => 500,
+        'persistent' => false,
+        'ssl' => false,
+        'debug' => 0,
+        'seqname_format' => '%s_seq',
+        'autofree' => false,
+        'portability' => DB_PORTABILITY_NONE,
+        'optimize' => 'performance',  // Deprecated.  Use 'portability'.
+    );
+
+    /**
+     * The parameters from the most recently executed query
+     * @var array
+     * @since Property available since Release 1.7.0
+     */
+    var $last_parameters = array();
+
+    /**
+     * The elements from each prepared statement
+     * @var array
+     */
+    var $prepare_tokens = array();
+
+    /**
+     * The data types of the various elements in each prepared statement
+     * @var array
+     */
+    var $prepare_types = array();
+
+    /**
+     * The prepared queries
+     * @var array
+     */
+    var $prepared_queries = array();
+
+
+    // }}}
+    // {{{ DB_common
+
+    /**
+     * This constructor calls <kbd>$this->PEAR('DB_Error')</kbd>
+     *
+     * @return void
+     */
+    function DB_common()
+    {
+        $this->PEAR('DB_Error');
+    }
+
+    // }}}
+    // {{{ __sleep()
+
+    /**
+     * Automatically indicates which properties should be saved
+     * when PHP's serialize() function is called
+     *
+     * @return array  the array of properties names that should be saved
+     */
+    function __sleep()
+    {
+        if ($this->connection) {
+            // Don't disconnect(), people use serialize() for many reasons
+            $this->was_connected = true;
+        } else {
+            $this->was_connected = false;
+        }
+        if (isset($this->autocommit)) {
+            return array('autocommit',
+                         'dbsyntax',
+                         'dsn',
+                         'features',
+                         'fetchmode',
+                         'fetchmode_object_class',
+                         'options',
+                         'was_connected',
+                   );
+        } else {
+            return array('dbsyntax',
+                         'dsn',
+                         'features',
+                         'fetchmode',
+                         'fetchmode_object_class',
+                         'options',
+                         'was_connected',
+                   );
+        }
+    }
+
+    // }}}
+    // {{{ __wakeup()
+
+    /**
+     * Automatically reconnects to the database when PHP's unserialize()
+     * function is called
+     *
+     * The reconnection attempt is only performed if the object was connected
+     * at the time PHP's serialize() function was run.
+     *
+     * @return void
+     */
+    function __wakeup()
+    {
+        if ($this->was_connected) {
+            $this->connect($this->dsn, $this->options);
+        }
+    }
+
+    // }}}
+    // {{{ __toString()
+
+    /**
+     * Automatic string conversion for PHP 5
+     *
+     * @return string  a string describing the current PEAR DB object
+     *
+     * @since Method available since Release 1.7.0
+     */
+    function __toString()
+    {
+        $info = strtolower(get_class($this));
+        $info .=  ': (phptype=' . $this->phptype .
+                  ', dbsyntax=' . $this->dbsyntax .
+                  ')';
+        if ($this->connection) {
+            $info .= ' [connected]';
+        }
+        return $info;
+    }
+
+    // }}}
+    // {{{ toString()
+
+    /**
+     * DEPRECATED:  String conversion method
+     *
+     * @return string  a string describing the current PEAR DB object
+     *
+     * @deprecated Method deprecated in Release 1.7.0
+     */
+    function toString()
+    {
+        return $this->__toString();
+    }
+
+    // }}}
+    // {{{ quoteString()
+
+    /**
+     * DEPRECATED: Quotes a string so it can be safely used within string
+     * delimiters in a query
+     *
+     * @param string $string  the string to be quoted
+     *
+     * @return string  the quoted string
+     *
+     * @see DB_common::quoteSmart(), DB_common::escapeSimple()
+     * @deprecated Method deprecated some time before Release 1.2
+     */
+    function quoteString($string)
+    {
+        $string = $this->quote($string);
+        if ($string{0} == "'") {
+            return substr($string, 1, -1);
+        }
+        return $string;
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * DEPRECATED: Quotes a string so it can be safely used in a query
+     *
+     * @param string $string  the string to quote
+     *
+     * @return string  the quoted string or the string <samp>NULL</samp>
+     *                  if the value submitted is <kbd>null</kbd>.
+     *
+     * @see DB_common::quoteSmart(), DB_common::escapeSimple()
+     * @deprecated Deprecated in release 1.6.0
+     */
+    function quote($string = null)
+    {
+        return ($string === null) ? 'NULL'
+                                  : "'" . str_replace("'", "''", $string) . "'";
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * Delimiting style depends on which database driver is being used.
+     *
+     * NOTE: just because you CAN use delimited identifiers doesn't mean
+     * you SHOULD use them.  In general, they end up causing way more
+     * problems than they solve.
+     *
+     * Portability is broken by using the following characters inside
+     * delimited identifiers:
+     *   + backtick (<kbd>`</kbd>) -- due to MySQL
+     *   + double quote (<kbd>"</kbd>) -- due to Oracle
+     *   + brackets (<kbd>[</kbd> or <kbd>]</kbd>) -- due to Access
+     *
+     * Delimited identifiers are known to generally work correctly under
+     * the following drivers:
+     *   + mssql
+     *   + mysql
+     *   + mysqli
+     *   + oci8
+     *   + odbc(access)
+     *   + odbc(db2)
+     *   + pgsql
+     *   + sqlite
+     *   + sybase (must execute <kbd>set quoted_identifier on</kbd> sometime
+     *     prior to use)
+     *
+     * InterBase doesn't seem to be able to use delimited identifiers
+     * via PHP 4.  They work fine under PHP 5.
+     *
+     * @param string $str  the identifier name to be quoted
+     *
+     * @return string  the quoted identifier
+     *
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '"' . str_replace('"', '""', $str) . '"';
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * The output depends on the PHP data type of input and the database
+     * type being used.
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     * <ul>
+     *  <li>
+     *    <kbd>input</kbd> -> <samp>returns</samp>
+     *  </li>
+     *  <li>
+     *    <kbd>null</kbd> -> the string <samp>NULL</samp>
+     *  </li>
+     *  <li>
+     *    <kbd>integer</kbd> or <kbd>double</kbd> -> the unquoted number
+     *  </li>
+     *  <li>
+     *    <kbd>bool</kbd> -> output depends on the driver in use
+     *    Most drivers return integers: <samp>1</samp> if
+     *    <kbd>true</kbd> or <samp>0</samp> if
+     *    <kbd>false</kbd>.
+     *    Some return strings: <samp>TRUE</samp> if
+     *    <kbd>true</kbd> or <samp>FALSE</samp> if
+     *    <kbd>false</kbd>.
+     *    Finally one returns strings: <samp>T</samp> if
+     *    <kbd>true</kbd> or <samp>F</samp> if
+     *    <kbd>false</kbd>. Here is a list of each DBMS,
+     *    the values returned and the suggested column type:
+     *    <ul>
+     *      <li>
+     *        <kbd>dbase</kbd> -> <samp>T/F</samp>
+     *        (<kbd>Logical</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>fbase</kbd> -> <samp>TRUE/FALSE</samp>
+     *        (<kbd>BOOLEAN</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>ibase</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>ifx</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>msql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>INTEGER</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mssql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>BIT</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mysql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mysqli</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>oci8</kbd> -> <samp>1/0</samp>
+     *        (<kbd>NUMBER(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>odbc</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>pgsql</kbd> -> <samp>TRUE/FALSE</samp>
+     *        (<kbd>BOOLEAN</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>sqlite</kbd> -> <samp>1/0</samp>
+     *        (<kbd>INTEGER</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>sybase</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *    </ul>
+     *    [1] Accommodate the lowest common denominator because not all
+     *    versions of have <kbd>BOOLEAN</kbd>.
+     *  </li>
+     *  <li>
+     *    other (including strings and numeric strings) ->
+     *    the data with single quotes escaped by preceeding
+     *    single quotes, backslashes are escaped by preceeding
+     *    backslashes, then the whole string is encapsulated
+     *    between single quotes
+     *  </li>
+     * </ul>
+     *
+     * @see DB_common::escapeSimple()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 1 : 0;
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * In SQLite, this makes things safe for inserts/updates, but may
+     * cause problems when performing text comparisons against columns
+     * containing binary data. See the
+     * {@link http://php.net/sqlite_escape_string PHP manual} for more info.
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        return str_replace("'", "''", $str);
+    }
+
+    // }}}
+    // {{{ provides()
+
+    /**
+     * Tells whether the present driver supports a given feature
+     *
+     * @param string $feature  the feature you're curious about
+     *
+     * @return bool  whether this driver supports $feature
+     */
+    function provides($feature)
+    {
+        return $this->features[$feature];
+    }
+
+    // }}}
+    // {{{ setFetchMode()
+
+    /**
+     * Sets the fetch mode that should be used by default for query results
+     *
+     * @param integer $fetchmode    DB_FETCHMODE_ORDERED, DB_FETCHMODE_ASSOC
+     *                               or DB_FETCHMODE_OBJECT
+     * @param string $object_class  the class name of the object to be returned
+     *                               by the fetch methods when the
+     *                               DB_FETCHMODE_OBJECT mode is selected.
+     *                               If no class is specified by default a cast
+     *                               to object from the assoc array row will be
+     *                               done.  There is also the posibility to use
+     *                               and extend the 'DB_row' class.
+     *
+     * @see DB_FETCHMODE_ORDERED, DB_FETCHMODE_ASSOC, DB_FETCHMODE_OBJECT
+     */
+    function setFetchMode($fetchmode, $object_class = 'stdClass')
+    {
+        switch ($fetchmode) {
+            case DB_FETCHMODE_OBJECT:
+                $this->fetchmode_object_class = $object_class;
+            case DB_FETCHMODE_ORDERED:
+            case DB_FETCHMODE_ASSOC:
+                $this->fetchmode = $fetchmode;
+                break;
+            default:
+                return $this->raiseError('invalid fetchmode mode');
+        }
+    }
+
+    // }}}
+    // {{{ setOption()
+
+    /**
+     * Sets run-time configuration options for PEAR DB
+     *
+     * Options, their data types, default values and description:
+     * <ul>
+     * <li>
+     * <var>autofree</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />should results be freed automatically when there are no
+     *            more rows?
+     * </li><li>
+     * <var>result_buffering</var> <kbd>integer</kbd> = <samp>500</samp>
+     *      <br />how many rows of the result set should be buffered?
+     *      <br />In mysql: mysql_unbuffered_query() is used instead of
+     *            mysql_query() if this value is 0.  (Release 1.7.0)
+     *      <br />In oci8: this value is passed to ocisetprefetch().
+     *            (Release 1.7.0)
+     * </li><li>
+     * <var>debug</var> <kbd>integer</kbd> = <samp>0</samp>
+     *      <br />debug level
+     * </li><li>
+     * <var>persistent</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />should the connection be persistent?
+     * </li><li>
+     * <var>portability</var> <kbd>integer</kbd> = <samp>DB_PORTABILITY_NONE</samp>
+     *      <br />portability mode constant (see below)
+     * </li><li>
+     * <var>seqname_format</var> <kbd>string</kbd> = <samp>%s_seq</samp>
+     *      <br />the sprintf() format string used on sequence names.  This
+     *            format is applied to sequence names passed to
+     *            createSequence(), nextID() and dropSequence().
+     * </li><li>
+     * <var>ssl</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />use ssl to connect?
+     * </li>
+     * </ul>
+     *
+     * -----------------------------------------
+     *
+     * PORTABILITY MODES
+     *
+     * These modes are bitwised, so they can be combined using <kbd>|</kbd>
+     * and removed using <kbd>^</kbd>.  See the examples section below on how
+     * to do this.
+     *
+     * <samp>DB_PORTABILITY_NONE</samp>
+     * turn off all portability features
+     *
+     * This mode gets automatically turned on if the deprecated
+     * <var>optimize</var> option gets set to <samp>performance</samp>.
+     *
+     *
+     * <samp>DB_PORTABILITY_LOWERCASE</samp>
+     * convert names of tables and fields to lower case when using
+     * <kbd>get*()</kbd>, <kbd>fetch*()</kbd> and <kbd>tableInfo()</kbd>
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + oci8
+     *
+     *
+     * <samp>DB_PORTABILITY_RTRIM</samp>
+     * right trim the data output by <kbd>get*()</kbd> <kbd>fetch*()</kbd>
+     *
+     *
+     * <samp>DB_PORTABILITY_DELETE_COUNT</samp>
+     * force reporting the number of rows deleted
+     *
+     * Some DBMS's don't count the number of rows deleted when performing
+     * simple <kbd>DELETE FROM tablename</kbd> queries.  This portability
+     * mode tricks such DBMS's into telling the count by adding
+     * <samp>WHERE 1=1</samp> to the end of <kbd>DELETE</kbd> queries.
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + fbsql
+     * + mysql
+     * + mysqli
+     * + sqlite
+     *
+     *
+     * <samp>DB_PORTABILITY_NUMROWS</samp>
+     * enable hack that makes <kbd>numRows()</kbd> work in Oracle
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + oci8
+     *
+     *
+     * <samp>DB_PORTABILITY_ERRORS</samp>
+     * makes certain error messages in certain drivers compatible
+     * with those from other DBMS's
+     *
+     * + mysql, mysqli:  change unique/primary key constraints
+     *   DB_ERROR_ALREADY_EXISTS -> DB_ERROR_CONSTRAINT
+     *
+     * + odbc(access):  MS's ODBC driver reports 'no such field' as code
+     *   07001, which means 'too few parameters.'  When this option is on
+     *   that code gets mapped to DB_ERROR_NOSUCHFIELD.
+     *   DB_ERROR_MISMATCH -> DB_ERROR_NOSUCHFIELD
+     *
+     * <samp>DB_PORTABILITY_NULL_TO_EMPTY</samp>
+     * convert null values to empty strings in data output by get*() and
+     * fetch*().  Needed because Oracle considers empty strings to be null,
+     * while most other DBMS's know the difference between empty and null.
+     *
+     *
+     * <samp>DB_PORTABILITY_ALL</samp>
+     * turn on all portability features
+     *
+     * -----------------------------------------
+     *
+     * Example 1. Simple setOption() example
+     * <code>
+     * $db->setOption('autofree', true);
+     * </code>
+     *
+     * Example 2. Portability for lowercasing and trimming
+     * <code>
+     * $db->setOption('portability',
+     *                 DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_RTRIM);
+     * </code>
+     *
+     * Example 3. All portability options except trimming
+     * <code>
+     * $db->setOption('portability',
+     *                 DB_PORTABILITY_ALL ^ DB_PORTABILITY_RTRIM);
+     * </code>
+     *
+     * @param string $option option name
+     * @param mixed  $value value for the option
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::$options
+     */
+    function setOption($option, $value)
+    {
+        if (isset($this->options[$option])) {
+            $this->options[$option] = $value;
+
+            /*
+             * Backwards compatibility check for the deprecated 'optimize'
+             * option.  Done here in case settings change after connecting.
+             */
+            if ($option == 'optimize') {
+                if ($value == 'portability') {
+                    switch ($this->phptype) {
+                        case 'oci8':
+                            $this->options['portability'] =
+                                    DB_PORTABILITY_LOWERCASE |
+                                    DB_PORTABILITY_NUMROWS;
+                            break;
+                        case 'fbsql':
+                        case 'mysql':
+                        case 'mysqli':
+                        case 'sqlite':
+                            $this->options['portability'] =
+                                    DB_PORTABILITY_DELETE_COUNT;
+                            break;
+                    }
+                } else {
+                    $this->options['portability'] = DB_PORTABILITY_NONE;
+                }
+            }
+
+            return DB_OK;
+        }
+        return $this->raiseError("unknown option $option");
+    }
+
+    // }}}
+    // {{{ getOption()
+
+    /**
+     * Returns the value of an option
+     *
+     * @param string $option  the option name you're curious about
+     *
+     * @return mixed  the option's value
+     */
+    function getOption($option)
+    {
+        if (isset($this->options[$option])) {
+            return $this->options[$option];
+        }
+        return $this->raiseError("unknown option $option");
+    }
+
+    // }}}
+    // {{{ prepare()
+
+    /**
+     * Prepares a query for multiple execution with execute()
+     *
+     * Creates a query that can be run multiple times.  Each time it is run,
+     * the placeholders, if any, will be replaced by the contents of
+     * execute()'s $data argument.
+     *
+     * Three types of placeholders can be used:
+     *   + <kbd>?</kbd>  scalar value (i.e. strings, integers).  The system
+     *                   will automatically quote and escape the data.
+     *   + <kbd>!</kbd>  value is inserted 'as is'
+     *   + <kbd>&</kbd>  requires a file name.  The file's contents get
+     *                   inserted into the query (i.e. saving binary
+     *                   data in a db)
+     *
+     * Example 1.
+     * <code>
+     * $sth = $db->prepare('INSERT INTO tbl (a, b, c) VALUES (?, !, &)');
+     * $data = array(
+     *     "John's text",
+     *     "'it''s good'",
+     *     'filename.txt'
+     * );
+     * $res = $db->execute($sth, $data);
+     * </code>
+     *
+     * Use backslashes to escape placeholder characters if you don't want
+     * them to be interpreted as placeholders:
+     * <pre>
+     *    "UPDATE foo SET col=? WHERE col='over \& under'"
+     * </pre>
+     *
+     * With some database backends, this is emulated.
+     *
+     * {@internal ibase and oci8 have their own prepare() methods.}}
+     *
+     * @param string $query  the query to be prepared
+     *
+     * @return mixed  DB statement resource on success. A DB_Error object
+     *                 on failure.
+     *
+     * @see DB_common::execute()
+     */
+    function prepare($query)
+    {
+        $tokens   = preg_split('/((?<!\\\)[&?!])/', $query, -1,
+                               PREG_SPLIT_DELIM_CAPTURE);
+        $token     = 0;
+        $types     = array();
+        $newtokens = array();
+
+        foreach ($tokens as $val) {
+            switch ($val) {
+                case '?':
+                    $types[$token++] = DB_PARAM_SCALAR;
+                    break;
+                case '&':
+                    $types[$token++] = DB_PARAM_OPAQUE;
+                    break;
+                case '!':
+                    $types[$token++] = DB_PARAM_MISC;
+                    break;
+                default:
+                    $newtokens[] = preg_replace('/\\\([&?!])/', "\\1", $val);
+            }
+        }
+
+        $this->prepare_tokens[] = &$newtokens;
+        end($this->prepare_tokens);
+
+        $k = key($this->prepare_tokens);
+        $this->prepare_types[$k] = $types;
+        $this->prepared_queries[$k] = implode(' ', $newtokens);
+
+        return $k;
+    }
+
+    // }}}
+    // {{{ autoPrepare()
+
+    /**
+     * Automaticaly generates an insert or update query and pass it to prepare()
+     *
+     * @param string $table         the table name
+     * @param array  $table_fields  the array of field names
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return resource  the query handle
+     *
+     * @uses DB_common::prepare(), DB_common::buildManipSQL()
+     */
+    function autoPrepare($table, $table_fields, $mode = DB_AUTOQUERY_INSERT,
+                         $where = false)
+    {
+        $query = $this->buildManipSQL($table, $table_fields, $mode, $where);
+        if (DB::isError($query)) {
+            return $query;
+        }
+        return $this->prepare($query);
+    }
+
+    // }}}
+    // {{{ autoExecute()
+
+    /**
+     * Automaticaly generates an insert or update query and call prepare()
+     * and execute() with it
+     *
+     * @param string $table         the table name
+     * @param array  $fields_values the associative array where $key is a
+     *                               field name and $value its value
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * @uses DB_common::autoPrepare(), DB_common::execute()
+     */
+    function autoExecute($table, $fields_values, $mode = DB_AUTOQUERY_INSERT,
+                         $where = false)
+    {
+        $sth = $this->autoPrepare($table, array_keys($fields_values), $mode,
+                                  $where);
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        $ret =& $this->execute($sth, array_values($fields_values));
+        $this->freePrepared($sth);
+        return $ret;
+
+    }
+
+    // }}}
+    // {{{ buildManipSQL()
+
+    /**
+     * Produces an SQL query string for autoPrepare()
+     *
+     * Example:
+     * <pre>
+     * buildManipSQL('table_sql', array('field1', 'field2', 'field3'),
+     *               DB_AUTOQUERY_INSERT);
+     * </pre>
+     *
+     * That returns
+     * <samp>
+     * INSERT INTO table_sql (field1,field2,field3) VALUES (?,?,?)
+     * </samp>
+     *
+     * NOTES:
+     *   - This belongs more to a SQL Builder class, but this is a simple
+     *     facility.
+     *   - Be carefull! If you don't give a $where param with an UPDATE
+     *     query, all the records of the table will be updated!
+     *
+     * @param string $table         the table name
+     * @param array  $table_fields  the array of field names
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return string  the sql query for autoPrepare()
+     */
+    function buildManipSQL($table, $table_fields, $mode, $where = false)
+    {
+        if (count($table_fields) == 0) {
+            return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+        $first = true;
+        switch ($mode) {
+            case DB_AUTOQUERY_INSERT:
+                $values = '';
+                $names = '';
+                foreach ($table_fields as $value) {
+                    if ($first) {
+                        $first = false;
+                    } else {
+                        $names .= ',';
+                        $values .= ',';
+                    }
+                    $names .= $value;
+                    $values .= '?';
+                }
+                return "INSERT INTO $table ($names) VALUES ($values)";
+            case DB_AUTOQUERY_UPDATE:
+                $set = '';
+                foreach ($table_fields as $value) {
+                    if ($first) {
+                        $first = false;
+                    } else {
+                        $set .= ',';
+                    }
+                    $set .= "$value = ?";
+                }
+                $sql = "UPDATE $table SET $set";
+                if ($where) {
+                    $sql .= " WHERE $where";
+                }
+                return $sql;
+            default:
+                return $this->raiseError(DB_ERROR_SYNTAX);
+        }
+    }
+
+    // }}}
+    // {{{ execute()
+
+    /**
+     * Executes a DB statement prepared with prepare()
+     *
+     * Example 1.
+     * <code>
+     * $sth = $db->prepare('INSERT INTO tbl (a, b, c) VALUES (?, !, &)');
+     * $data = array(
+     *     "John's text",
+     *     "'it''s good'",
+     *     'filename.txt'
+     * );
+     * $res =& $db->execute($sth, $data);
+     * </code>
+     *
+     * @param resource $stmt  a DB statement resource returned from prepare()
+     * @param mixed    $data  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * {@internal ibase and oci8 have their own execute() methods.}}
+     *
+     * @see DB_common::prepare()
+     */
+    function &execute($stmt, $data = array())
+    {
+        $realquery = $this->executeEmulateQuery($stmt, $data);
+        if (DB::isError($realquery)) {
+            return $realquery;
+        }
+        $result = $this->simpleQuery($realquery);
+
+        if ($result === DB_OK || DB::isError($result)) {
+            return $result;
+        } else {
+            $tmp =& new DB_result($this, $result);
+            return $tmp;
+        }
+    }
+
+    // }}}
+    // {{{ executeEmulateQuery()
+
+    /**
+     * Emulates executing prepared statements if the DBMS not support them
+     *
+     * @param resource $stmt  a DB statement resource returned from execute()
+     * @param mixed    $data  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a string containing the real query run when emulating
+     *                 prepare/execute.  A DB_Error object on failure.
+     *
+     * @access protected
+     * @see DB_common::execute()
+     */
+    function executeEmulateQuery($stmt, $data = array())
+    {
+        $stmt = (int)$stmt;
+        $data = (array)$data;
+        $this->last_parameters = $data;
+
+        if (count($this->prepare_types[$stmt]) != count($data)) {
+            $this->last_query = $this->prepared_queries[$stmt];
+            return $this->raiseError(DB_ERROR_MISMATCH);
+        }
+
+        $realquery = $this->prepare_tokens[$stmt][0];
+
+        $i = 0;
+        foreach ($data as $value) {
+            if ($this->prepare_types[$stmt][$i] == DB_PARAM_SCALAR) {
+                $realquery .= $this->quoteSmart($value);
+            } elseif ($this->prepare_types[$stmt][$i] == DB_PARAM_OPAQUE) {
+                $fp = @fopen($value, 'rb');
+                if (!$fp) {
+                    return $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
+                }
+                $realquery .= $this->quoteSmart(fread($fp, filesize($value)));
+                fclose($fp);
+            } else {
+                $realquery .= $value;
+            }
+
+            $realquery .= $this->prepare_tokens[$stmt][++$i];
+        }
+
+        return $realquery;
+    }
+
+    // }}}
+    // {{{ executeMultiple()
+
+    /**
+     * Performs several execute() calls on the same statement handle
+     *
+     * $data must be an array indexed numerically
+     * from 0, one execute call is done for every "row" in the array.
+     *
+     * If an error occurs during execute(), executeMultiple() does not
+     * execute the unfinished rows, but rather returns that error.
+     *
+     * @param resource $stmt  query handle from prepare()
+     * @param array    $data  numeric array containing the
+     *                         data to insert into the query
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::prepare(), DB_common::execute()
+     */
+    function executeMultiple($stmt, $data)
+    {
+        foreach ($data as $value) {
+            $res =& $this->execute($stmt, $value);
+            if (DB::isError($res)) {
+                return $res;
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freePrepared()
+
+    /**
+     * Frees the internal resources associated with a prepared query
+     *
+     * @param resource $stmt           the prepared statement's PHP resource
+     * @param bool     $free_resource  should the PHP resource be freed too?
+     *                                  Use false if you need to get data
+     *                                  from the result set later.
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_common::prepare()
+     */
+    function freePrepared($stmt, $free_resource = true)
+    {
+        $stmt = (int)$stmt;
+        if (isset($this->prepare_tokens[$stmt])) {
+            unset($this->prepare_tokens[$stmt]);
+            unset($this->prepare_types[$stmt]);
+            unset($this->prepared_queries[$stmt]);
+            return true;
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * It is defined here to ensure all drivers have this method available.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     * @see DB_mysql::modifyQuery(), DB_oci8::modifyQuery(),
+     *      DB_sqlite::modifyQuery()
+     */
+    function modifyQuery($query)
+    {
+        return $query;
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * It is defined here to assure that all implementations
+     * have this method defined.
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        return $query;
+    }
+
+    // }}}
+    // {{{ query()
+
+    /**
+     * Sends a query to the database server
+     *
+     * The query string can be either a normal statement to be sent directly
+     * to the server OR if <var>$params</var> are passed the query can have
+     * placeholders and it will be passed through prepare() and execute().
+     *
+     * @param string $query   the SQL query or the statement to prepare
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_result, DB_common::prepare(), DB_common::execute()
+     */
+    function &query($query, $params = array())
+    {
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $ret =& $this->execute($sth, $params);
+            $this->freePrepared($sth, false);
+            return $ret;
+        } else {
+            $this->last_parameters = array();
+            $result = $this->simpleQuery($query);
+            if ($result === DB_OK || DB::isError($result)) {
+                return $result;
+            } else {
+                $tmp =& new DB_result($this, $result);
+                return $tmp;
+            }
+        }
+    }
+
+    // }}}
+    // {{{ limitQuery()
+
+    /**
+     * Generates and executes a LIMIT query
+     *
+     * @param string $query   the query
+     * @param intr   $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     */
+    function &limitQuery($query, $from, $count, $params = array())
+    {
+        $query = $this->modifyLimitQuery($query, $from, $count, $params);
+        if (DB::isError($query)){
+            return $query;
+        }
+        $result =& $this->query($query, $params);
+        if (is_a($result, 'DB_result')) {
+            $result->setOption('limit_from', $from);
+            $result->setOption('limit_count', $count);
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ getOne()
+
+    /**
+     * Fetches the first column of the first row from a query result
+     *
+     * Takes care of doing the query and freeing the results when finished.
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  the returned value of the query.
+     *                 A DB_Error object on failure.
+     */
+    function &getOne($query, $params = array())
+    {
+        $params = (array)$params;
+        // modifyLimitQuery() would be nice here, but it causes BC issues
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $err = $res->fetchInto($row, DB_FETCHMODE_ORDERED);
+        $res->free();
+
+        if ($err !== DB_OK) {
+            return $err;
+        }
+
+        return $row[0];
+    }
+
+    // }}}
+    // {{{ getRow()
+
+    /**
+     * Fetches the first row of data returned from a query result
+     *
+     * Takes care of doing the query and freeing the results when finished.
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     * @param int $fetchmode  the fetch mode to use
+     *
+     * @return array  the first row of results as an array.
+     *                 A DB_Error object on failure.
+     */
+    function &getRow($query, $params = array(),
+                     $fetchmode = DB_FETCHMODE_DEFAULT)
+    {
+        // compat check, the params and fetchmode parameters used to
+        // have the opposite order
+        if (!is_array($params)) {
+            if (is_array($fetchmode)) {
+                if ($params === null) {
+                    $tmp = DB_FETCHMODE_DEFAULT;
+                } else {
+                    $tmp = $params;
+                }
+                $params = $fetchmode;
+                $fetchmode = $tmp;
+            } elseif ($params !== null) {
+                $fetchmode = $params;
+                $params = array();
+            }
+        }
+        // modifyLimitQuery() would be nice here, but it causes BC issues
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $err = $res->fetchInto($row, $fetchmode);
+
+        $res->free();
+
+        if ($err !== DB_OK) {
+            return $err;
+        }
+
+        return $row;
+    }
+
+    // }}}
+    // {{{ getCol()
+
+    /**
+     * Fetches a single column from a query result and returns it as an
+     * indexed array
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $col     which column to return (integer [column number,
+     *                         starting at 0] or string [column name])
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return array  the results as an array.  A DB_Error object on failure.
+     *
+     * @see DB_common::query()
+     */
+    function &getCol($query, $col = 0, $params = array())
+    {
+        $params = (array)$params;
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $fetchmode = is_int($col) ? DB_FETCHMODE_ORDERED : DB_FETCHMODE_ASSOC;
+
+        if (!is_array($row = $res->fetchRow($fetchmode))) {
+            $ret = array();
+        } else {
+            if (!array_key_exists($col, $row)) {
+                $ret =& $this->raiseError(DB_ERROR_NOSUCHFIELD);
+            } else {
+                $ret = array($row[$col]);
+                while (is_array($row = $res->fetchRow($fetchmode))) {
+                    $ret[] = $row[$col];
+                }
+            }
+        }
+
+        $res->free();
+
+        if (DB::isError($row)) {
+            $ret = $row;
+        }
+
+        return $ret;
+    }
+
+    // }}}
+    // {{{ getAssoc()
+
+    /**
+     * Fetches an entire query result and returns it as an
+     * associative array using the first column as the key
+     *
+     * If the result set contains more than two columns, the value
+     * will be an array of the values from column 2-n.  If the result
+     * set contains only two columns, the returned value will be a
+     * scalar with the value of the second column (unless forced to an
+     * array with the $force_array parameter).  A DB error code is
+     * returned on errors.  If the result set contains fewer than two
+     * columns, a DB_ERROR_TRUNCATED error is returned.
+     *
+     * For example, if the table "mytable" contains:
+     *
+     * <pre>
+     *  ID      TEXT       DATE
+     * --------------------------------
+     *  1       'one'      944679408
+     *  2       'two'      944679408
+     *  3       'three'    944679408
+     * </pre>
+     *
+     * Then the call getAssoc('SELECT id,text FROM mytable') returns:
+     * <pre>
+     *   array(
+     *     '1' => 'one',
+     *     '2' => 'two',
+     *     '3' => 'three',
+     *   )
+     * </pre>
+     *
+     * ...while the call getAssoc('SELECT id,text,date FROM mytable') returns:
+     * <pre>
+     *   array(
+     *     '1' => array('one', '944679408'),
+     *     '2' => array('two', '944679408'),
+     *     '3' => array('three', '944679408')
+     *   )
+     * </pre>
+     *
+     * If the more than one row occurs with the same value in the
+     * first column, the last row overwrites all previous ones by
+     * default.  Use the $group parameter if you don't want to
+     * overwrite like this.  Example:
+     *
+     * <pre>
+     * getAssoc('SELECT category,id,name FROM mytable', false, null,
+     *          DB_FETCHMODE_ASSOC, true) returns:
+     *
+     *   array(
+     *     '1' => array(array('id' => '4', 'name' => 'number four'),
+     *                  array('id' => '6', 'name' => 'number six')
+     *            ),
+     *     '9' => array(array('id' => '4', 'name' => 'number four'),
+     *                  array('id' => '6', 'name' => 'number six')
+     *            )
+     *   )
+     * </pre>
+     *
+     * Keep in mind that database functions in PHP usually return string
+     * values for results regardless of the database's internal type.
+     *
+     * @param string $query        the SQL query
+     * @param bool   $force_array  used only when the query returns
+     *                              exactly two columns.  If true, the values
+     *                              of the returned array will be one-element
+     *                              arrays instead of scalars.
+     * @param mixed  $params       array, string or numeric data to be used in
+     *                              execution of the statement.  Quantity of
+     *                              items passed must match quantity of
+     *                              placeholders in query:  meaning 1
+     *                              placeholder for non-array parameters or
+     *                              1 placeholder per array element.
+     * @param int   $fetchmode     the fetch mode to use
+     * @param bool  $group         if true, the values of the returned array
+     *                              is wrapped in another array.  If the same
+     *                              key value (in the first column) repeats
+     *                              itself, the values will be appended to
+     *                              this array instead of overwriting the
+     *                              existing values.
+     *
+     * @return array  the associative array containing the query results.
+     *                A DB_Error object on failure.
+     */
+    function &getAssoc($query, $force_array = false, $params = array(),
+                       $fetchmode = DB_FETCHMODE_DEFAULT, $group = false)
+    {
+        $params = (array)$params;
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+        if ($fetchmode == DB_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->fetchmode;
+        }
+        $cols = $res->numCols();
+
+        if ($cols < 2) {
+            $tmp =& $this->raiseError(DB_ERROR_TRUNCATED);
+            return $tmp;
+        }
+
+        $results = array();
+
+        if ($cols > 2 || $force_array) {
+            // return array values
+            // XXX this part can be optimized
+            if ($fetchmode == DB_FETCHMODE_ASSOC) {
+                while (is_array($row = $res->fetchRow(DB_FETCHMODE_ASSOC))) {
+                    reset($row);
+                    $key = current($row);
+                    unset($row[key($row)]);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            } elseif ($fetchmode == DB_FETCHMODE_OBJECT) {
+                while ($row = $res->fetchRow(DB_FETCHMODE_OBJECT)) {
+                    $arr = get_object_vars($row);
+                    $key = current($arr);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            } else {
+                while (is_array($row = $res->fetchRow(DB_FETCHMODE_ORDERED))) {
+                    // we shift away the first element to get
+                    // indices running from 0 again
+                    $key = array_shift($row);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            }
+            if (DB::isError($row)) {
+                $results = $row;
+            }
+        } else {
+            // return scalar values
+            while (is_array($row = $res->fetchRow(DB_FETCHMODE_ORDERED))) {
+                if ($group) {
+                    $results[$row[0]][] = $row[1];
+                } else {
+                    $results[$row[0]] = $row[1];
+                }
+            }
+            if (DB::isError($row)) {
+                $results = $row;
+            }
+        }
+
+        $res->free();
+
+        return $results;
+    }
+
+    // }}}
+    // {{{ getAll()
+
+    /**
+     * Fetches all of the rows from a query result
+     *
+     * @param string $query      the SQL query
+     * @param mixed  $params     array, string or numeric data to be used in
+     *                            execution of the statement.  Quantity of
+     *                            items passed must match quantity of
+     *                            placeholders in query:  meaning 1
+     *                            placeholder for non-array parameters or
+     *                            1 placeholder per array element.
+     * @param int    $fetchmode  the fetch mode to use:
+     *                            + DB_FETCHMODE_ORDERED
+     *                            + DB_FETCHMODE_ASSOC
+     *                            + DB_FETCHMODE_ORDERED | DB_FETCHMODE_FLIPPED
+     *                            + DB_FETCHMODE_ASSOC | DB_FETCHMODE_FLIPPED
+     *
+     * @return array  the nested array.  A DB_Error object on failure.
+     */
+    function &getAll($query, $params = array(),
+                     $fetchmode = DB_FETCHMODE_DEFAULT)
+    {
+        // compat check, the params and fetchmode parameters used to
+        // have the opposite order
+        if (!is_array($params)) {
+            if (is_array($fetchmode)) {
+                if ($params === null) {
+                    $tmp = DB_FETCHMODE_DEFAULT;
+                } else {
+                    $tmp = $params;
+                }
+                $params = $fetchmode;
+                $fetchmode = $tmp;
+            } elseif ($params !== null) {
+                $fetchmode = $params;
+                $params = array();
+            }
+        }
+
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if ($res === DB_OK || DB::isError($res)) {
+            return $res;
+        }
+
+        $results = array();
+        while (DB_OK === $res->fetchInto($row, $fetchmode)) {
+            if ($fetchmode & DB_FETCHMODE_FLIPPED) {
+                foreach ($row as $key => $val) {
+                    $results[$key][] = $val;
+                }
+            } else {
+                $results[] = $row;
+            }
+        }
+
+        $res->free();
+
+        if (DB::isError($row)) {
+            $tmp =& $this->raiseError($row);
+            return $tmp;
+        }
+        return $results;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Determines the number of rows in a query result
+     *
+     * @param resource $result  the query result idenifier produced by PHP
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function numRows($result)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ getSequenceName()
+
+    /**
+     * Generates the name used inside the database for a sequence
+     *
+     * The createSequence() docblock contains notes about storing sequence
+     * names.
+     *
+     * @param string $sqn  the sequence's public name
+     *
+     * @return string  the sequence's name in the backend
+     *
+     * @access protected
+     * @see DB_common::createSequence(), DB_common::dropSequence(),
+     *      DB_common::nextID(), DB_common::setOption()
+     */
+    function getSequenceName($sqn)
+    {
+        return sprintf($this->getOption('seqname_format'),
+                       preg_replace('/[^a-z0-9_.]/i', '_', $sqn));
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::dropSequence(),
+     *      DB_common::getSequenceName()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * The name of a given sequence is determined by passing the string
+     * provided in the <var>$seq_name</var> argument through PHP's sprintf()
+     * function using the value from the <var>seqname_format</var> option as
+     * the sprintf()'s format argument.
+     *
+     * <var>seqname_format</var> is set via setOption().
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_common::nextID()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_common::nextID()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ raiseError()
+
+    /**
+     * Communicates an error and invoke error callbacks, etc
+     *
+     * Basically a wrapper for PEAR::raiseError without the message string.
+     *
+     * @param mixed   integer error code, or a PEAR error object (all
+     *                 other parameters are ignored if this parameter is
+     *                 an object
+     * @param int     error mode, see PEAR_Error docs
+     * @param mixed   if error mode is PEAR_ERROR_TRIGGER, this is the
+     *                 error level (E_USER_NOTICE etc).  If error mode is
+     *                 PEAR_ERROR_CALLBACK, this is the callback function,
+     *                 either as a function name, or as an array of an
+     *                 object and method name.  For other error modes this
+     *                 parameter is ignored.
+     * @param string  extra debug information.  Defaults to the last
+     *                 query and native error code.
+     * @param mixed   native error code, integer or string depending the
+     *                 backend
+     *
+     * @return object  the PEAR_Error object
+     *
+     * @see PEAR_Error
+     */
+    function &raiseError($code = DB_ERROR, $mode = null, $options = null,
+                         $userinfo = null, $nativecode = null)
+    {
+        // The error is yet a DB error object
+        if (is_object($code)) {
+            // because we the static PEAR::raiseError, our global
+            // handler should be used if it is set
+            if ($mode === null && !empty($this->_default_error_mode)) {
+                $mode    = $this->_default_error_mode;
+                $options = $this->_default_error_options;
+            }
+            $tmp = PEAR::raiseError($code, null, $mode, $options,
+                                    null, null, true);
+            return $tmp;
+        }
+
+        if ($userinfo === null) {
+            $userinfo = $this->last_query;
+        }
+
+        if ($nativecode) {
+            $userinfo .= ' [nativecode=' . trim($nativecode) . ']';
+        } else {
+            $userinfo .= ' [DB Error: ' . DB::errorMessage($code) . ']';
+        }
+
+        $tmp = PEAR::raiseError(null, $code, $mode, $options, $userinfo,
+                                'DB_Error', true);
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return mixed  the DBMS' error code.  A DB_Error object on failure.
+     */
+    function errorNative()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Maps native error codes to DB's portable ones
+     *
+     * Uses the <var>$errorcode_map</var> property defined in each driver.
+     *
+     * @param string|int $nativecode  the error code returned by the DBMS
+     *
+     * @return int  the portable DB error code.  Return DB_ERROR if the
+     *               current driver doesn't have a mapping for the
+     *               $nativecode submitted.
+     */
+    function errorCode($nativecode)
+    {
+        if (isset($this->errorcode_map[$nativecode])) {
+            return $this->errorcode_map[$nativecode];
+        }
+        // Fall back to DB_ERROR if there was no mapping.
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ errorMessage()
+
+    /**
+     * Maps a DB error code to a textual message
+     *
+     * @param integer $dbcode  the DB error code
+     *
+     * @return string  the error message corresponding to the error code
+     *                  submitted.  FALSE if the error code is unknown.
+     *
+     * @see DB::errorMessage()
+     */
+    function errorMessage($dbcode)
+    {
+        return DB::errorMessage($this->errorcode_map[$dbcode]);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * The format of the resulting array depends on which <var>$mode</var>
+     * you select.  The sample output below is based on this query:
+     * <pre>
+     *    SELECT tblFoo.fldID, tblFoo.fldPhone, tblBar.fldId
+     *    FROM tblFoo
+     *    JOIN tblBar ON tblFoo.fldId = tblBar.fldId
+     * </pre>
+     *
+     * <ul>
+     * <li>
+     *
+     * <kbd>null</kbd> (default)
+     *   <pre>
+     *   [0] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   [1] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldPhone
+     *       [type] => string
+     *       [len] => 20
+     *       [flags] =>
+     *   )
+     *   [2] => Array (
+     *       [table] => tblBar
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>DB_TABLEINFO_ORDER</kbd>
+     *
+     *   <p>In addition to the information found in the default output,
+     *   a notation of the number of columns is provided by the
+     *   <samp>num_fields</samp> element while the <samp>order</samp>
+     *   element provides an array with the column names as the keys and
+     *   their location index number (corresponding to the keys in the
+     *   the default output) as the values.</p>
+     *
+     *   <p>If a result set has identical field names, the last one is
+     *   used.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [order] => Array (
+     *       [fldId] => 2
+     *       [fldTrans] => 1
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>DB_TABLEINFO_ORDERTABLE</kbd>
+     *
+     *   <p>Similar to <kbd>DB_TABLEINFO_ORDER</kbd> but adds more
+     *   dimensions to the array in which the table names are keys and
+     *   the field names are sub-keys.  This is helpful for queries that
+     *   join tables which have identical field names.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [ordertable] => Array (
+     *       [tblFoo] => Array (
+     *           [fldId] => 0
+     *           [fldPhone] => 1
+     *       )
+     *       [tblBar] => Array (
+     *           [fldId] => 2
+     *       )
+     *   )
+     *   </pre>
+     *
+     * </li>
+     * </ul>
+     *
+     * The <samp>flags</samp> element contains a space separated list
+     * of extra information about the field.  This data is inconsistent
+     * between DBMS's due to the way each DBMS works.
+     *   + <samp>primary_key</samp>
+     *   + <samp>unique_key</samp>
+     *   + <samp>multiple_key</samp>
+     *   + <samp>not_null</samp>
+     *
+     * Most DBMS's only provide the <samp>table</samp> and <samp>flags</samp>
+     * elements if <var>$result</var> is a table name.  The following DBMS's
+     * provide full information from queries:
+     *   + fbsql
+     *   + mysql
+     *
+     * If the 'portability' option has <samp>DB_PORTABILITY_LOWERCASE</samp>
+     * turned on, the names of tables and fields will be lowercased.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                string containing the name of a table.
+     *                                While this also accepts a query result
+     *                                resource identifier, this behavior is
+     *                                deprecated.
+     * @param int  $mode   either unused or one of the tableInfo modes:
+     *                     <kbd>DB_TABLEINFO_ORDERTABLE</kbd>,
+     *                     <kbd>DB_TABLEINFO_ORDER</kbd> or
+     *                     <kbd>DB_TABLEINFO_FULL</kbd> (which does both).
+     *                     These are bitwise, so the first two can be
+     *                     combined using <kbd>|</kbd>.
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        /*
+         * If the DB_<driver> class has a tableInfo() method, that one
+         * overrides this one.  But, if the driver doesn't have one,
+         * this method runs and tells users about that fact.
+         */
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ getTables()
+
+    /**
+     * Lists the tables in the current database
+     *
+     * @return array  the list of tables.  A DB_Error object on failure.
+     *
+     * @deprecated Method deprecated some time before Release 1.2
+     */
+    function getTables()
+    {
+        return $this->getListOf('tables');
+    }
+
+    // }}}
+    // {{{ getListOf()
+
+    /**
+     * Lists internal database information
+     *
+     * @param string $type  type of information being sought.
+     *                       Common items being sought are:
+     *                       tables, databases, users, views, functions
+     *                       Each DBMS's has its own capabilities.
+     *
+     * @return array  an array listing the items sought.
+     *                 A DB DB_Error object on failure.
+     */
+    function getListOf($type)
+    {
+        $sql = $this->getSpecialQuery($type);
+        if ($sql === null) {
+            $this->last_query = '';
+            return $this->raiseError(DB_ERROR_UNSUPPORTED);
+        } elseif (is_int($sql) || DB::isError($sql)) {
+            // Previous error
+            return $this->raiseError($sql);
+        } elseif (is_array($sql)) {
+            // Already the result
+            return $sql;
+        }
+        // Launch this query
+        return $this->getCol($sql);
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        return $this->raiseError(DB_ERROR_UNSUPPORTED);
+    }
+
+    // }}}
+    // {{{ _rtrimArrayValues()
+
+    /**
+     * Right-trims all strings in an array
+     *
+     * @param array $array  the array to be trimmed (passed by reference)
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    function _rtrimArrayValues(&$array)
+    {
+        foreach ($array as $key => $value) {
+            if (is_string($value)) {
+                $array[$key] = rtrim($value);
+            }
+        }
+    }
+
+    // }}}
+    // {{{ _convertNullArrayValuesToEmpty()
+
+    /**
+     * Converts all null values in an array to empty strings
+     *
+     * @param array  $array  the array to be de-nullified (passed by reference)
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    function _convertNullArrayValuesToEmpty(&$array)
+    {
+        foreach ($array as $key => $value) {
+            if (is_null($value)) {
+                $array[$key] = '';
+            }
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/lib/phpFlickr/PEAR/DB/mysql.php b/lib/phpFlickr/PEAR/DB/mysql.php
new file mode 100644
index 000000000..3ae0adf86
--- /dev/null
+++ b/lib/phpFlickr/PEAR/DB/mysql.php
@@ -0,0 +1,1034 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's mysql extension
+ * for interacting with MySQL databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: mysql.php 32 2005-08-01 06:21:02Z dancoulter $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's mysql extension
+ * for interacting with MySQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_mysql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'mysql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'mysql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => '4.2.0',
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        1004 => DB_ERROR_CANNOT_CREATE,
+        1005 => DB_ERROR_CANNOT_CREATE,
+        1006 => DB_ERROR_CANNOT_CREATE,
+        1007 => DB_ERROR_ALREADY_EXISTS,
+        1008 => DB_ERROR_CANNOT_DROP,
+        1022 => DB_ERROR_ALREADY_EXISTS,
+        1044 => DB_ERROR_ACCESS_VIOLATION,
+        1046 => DB_ERROR_NODBSELECTED,
+        1048 => DB_ERROR_CONSTRAINT,
+        1049 => DB_ERROR_NOSUCHDB,
+        1050 => DB_ERROR_ALREADY_EXISTS,
+        1051 => DB_ERROR_NOSUCHTABLE,
+        1054 => DB_ERROR_NOSUCHFIELD,
+        1061 => DB_ERROR_ALREADY_EXISTS,
+        1062 => DB_ERROR_ALREADY_EXISTS,
+        1064 => DB_ERROR_SYNTAX,
+        1091 => DB_ERROR_NOT_FOUND,
+        1100 => DB_ERROR_NOT_LOCKED,
+        1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        1142 => DB_ERROR_ACCESS_VIOLATION,
+        1146 => DB_ERROR_NOSUCHTABLE,
+        1216 => DB_ERROR_CONSTRAINT,
+        1217 => DB_ERROR_CONSTRAINT,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = '';
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_mysql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's mysql driver supports the following extra DSN options:
+     *   + new_link      If set to true, causes subsequent calls to connect()
+     *                    to return a new connection link instead of the
+     *                    existing one.  WARNING: this is not portable to
+     *                    other DBMS's. Available since PEAR DB 1.7.0.
+     *   + client_flags  Any combination of MYSQL_CLIENT_* constants.
+     *                    Only used if PHP is at version 4.3.0 or greater.
+     *                    Available since PEAR DB 1.7.0.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('mysql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array();
+        if ($dsn['protocol'] && $dsn['protocol'] == 'unix') {
+            $params[0] = ':' . $dsn['socket'];
+        } else {
+            $params[0] = $dsn['hostspec'] ? $dsn['hostspec']
+                         : 'localhost';
+            if ($dsn['port']) {
+                $params[0] .= ':' . $dsn['port'];
+            }
+        }
+        $params[] = $dsn['username'] ? $dsn['username'] : null;
+        $params[] = $dsn['password'] ? $dsn['password'] : null;
+
+        if (!$persistent) {
+            if (isset($dsn['new_link'])
+                && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
+            {
+                $params[] = true;
+            } else {
+                $params[] = false;
+            }
+        }
+        if (version_compare(phpversion(), '4.3.0', '>=')) {
+            $params[] = isset($dsn['client_flags'])
+                        ? $dsn['client_flags'] : null;
+        }
+
+        $connect_function = $persistent ? 'mysql_pconnect' : 'mysql_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            if (($err = @mysql_error()) != '') {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null, 
+                                         $err);
+            } else {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+
+        if ($dsn['database']) {
+            if (!@mysql_select_db($dsn['database'], $this->connection)) {
+                return $this->mysqlRaiseError();
+            }
+            $this->_db = $dsn['database'];
+        }
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @mysql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * Generally uses mysql_query().  If you want to use
+     * mysql_unbuffered_query() set the "result_buffering" option to 0 using
+     * setOptions().  This option was added in Release 1.7.0.
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        if ($this->_db) {
+            if (!@mysql_select_db($this->_db, $this->connection)) {
+                return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+        }
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @mysql_query('SET AUTOCOMMIT=0', $this->connection);
+                $result = @mysql_query('BEGIN', $this->connection);
+                if (!$result) {
+                    return $this->mysqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        if (!$this->options['result_buffering']) {
+            $result = @mysql_unbuffered_query($query, $this->connection);
+        } else {
+            $result = @mysql_query($query, $this->connection);
+        }
+        if (!$result) {
+            return $this->mysqlRaiseError();
+        }
+        if (is_resource($result)) {
+            return $result;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal mysql result pointer to the next available result
+     *
+     * This method has not been implemented yet.
+     *
+     * @param a valid sql result resource
+     *
+     * @return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@mysql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @mysql_fetch_array($result, MYSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @mysql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            /*
+             * Even though this DBMS already trims output, we do this because
+             * a field might have intentional whitespace at the end that
+             * gets removed by DB_PORTABILITY_RTRIM under another driver.
+             */
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @mysql_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @mysql_num_fields($result);
+        if (!$cols) {
+            return $this->mysqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @mysql_num_rows($result);
+        if ($rows === null) {
+            return $this->mysqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysql_select_db($this->_db, $this->connection)) {
+                    return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysql_query('COMMIT', $this->connection);
+            $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysql_select_db($this->_db, $this->connection)) {
+                    return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysql_query('ROLLBACK', $this->connection);
+            $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            return @mysql_affected_rows($this->connection);
+        } else {
+            return 0;
+        }
+     }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_mysql::createSequence(), DB_mysql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        do {
+            $repeat = 0;
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("UPDATE ${seqname} ".
+                                   'SET id=LAST_INSERT_ID(id+1)');
+            $this->popErrorHandling();
+            if ($result === DB_OK) {
+                // COMMON CASE
+                $id = @mysql_insert_id($this->connection);
+                if ($id != 0) {
+                    return $id;
+                }
+                // EMPTY SEQ TABLE
+                // Sequence table must be empty for some reason, so fill
+                // it and return 1 and obtain a user-level lock
+                $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                if ($result == 0) {
+                    // Failed to get the lock
+                    return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
+                }
+
+                // add the default value
+                $result = $this->query("REPLACE INTO ${seqname} (id) VALUES (0)");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+
+                // Release the lock
+                $result = $this->getOne('SELECT RELEASE_LOCK('
+                                        . "'${seqname}_lock')");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                // We know what the result will be, so no need to try again
+                return 1;
+
+            } elseif ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE)
+            {
+                // ONDEMAND TABLE CREATION
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                } else {
+                    $repeat = 1;
+                }
+
+            } elseif (DB::isError($result) &&
+                      $result->getCode() == DB_ERROR_ALREADY_EXISTS)
+            {
+                // BACKWARDS COMPAT
+                // see _BCsequence() comment
+                $result = $this->_BCsequence($seqname);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                $repeat = 1;
+            }
+        } while ($repeat);
+
+        return $this->raiseError($result);
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_mysql::nextID(), DB_mysql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'
+                            . ' PRIMARY KEY(id))');
+        if (DB::isError($res)) {
+            return $res;
+        }
+        // insert yields value 1, nextId call will generate ID 2
+        $res = $this->query("INSERT INTO ${seqname} (id) VALUES (0)");
+        if (DB::isError($res)) {
+            return $res;
+        }
+        // so reset to zero
+        return $this->query("UPDATE ${seqname} SET id = 0");
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_mysql::nextID(), DB_mysql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ _BCsequence()
+
+    /**
+     * Backwards compatibility with old sequence emulation implementation
+     * (clean up the dupes)
+     *
+     * @param string $seqname  the sequence name to clean up
+     *
+     * @return bool  true on success.  A DB_Error object on failure.
+     *
+     * @access private
+     */
+    function _BCsequence($seqname)
+    {
+        // Obtain a user-level lock... this will release any previous
+        // application locks, but unlike LOCK TABLES, it does not abort
+        // the current transaction and is much less frequently used.
+        $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        if ($result == 0) {
+            // Failed to get the lock, can't do the conversion, bail
+            // with a DB_ERROR_NOT_LOCKED error
+            return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
+        }
+
+        $highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}");
+        if (DB::isError($highest_id)) {
+            return $highest_id;
+        }
+        // This should kill all rows except the highest
+        // We should probably do something if $highest_id isn't
+        // numeric, but I'm at a loss as how to handle that...
+        $result = $this->query('DELETE FROM ' . $seqname
+                               . " WHERE id <> $highest_id");
+        if (DB::isError($result)) {
+            return $result;
+        }
+
+        // If another thread has been waiting for this lock,
+        // it will go thru the above procedure, but will have no
+        // real effect
+        $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * MySQL can't handle the backtick character (<kbd>`</kbd>) in
+     * table or column names.
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '`' . $str . '`';
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * @deprecated  Deprecated in release 1.6.0
+     */
+    function quote($str)
+    {
+        return $this->quoteSmart($str);
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        if (function_exists('mysql_real_escape_string')) {
+            return @mysql_real_escape_string($str, $this->connection);
+        } else {
+            return @mysql_escape_string($str);
+        }
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * This little hack lets you know how many rows were deleted
+     * when running a "DELETE FROM table" query.  Only implemented
+     * if the DB_PORTABILITY_DELETE_COUNT portability option is on.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     * @see DB_common::setOption()
+     */
+    function modifyQuery($query)
+    {
+        if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) {
+            // "DELETE FROM table" gives 0 affected rows in MySQL.
+            // This little hack lets you know how many rows were deleted.
+            if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
+                $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
+                                      'DELETE FROM \1 WHERE 1=1', $query);
+            }
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        if (DB::isManip($query)) {
+            return $query . " LIMIT $count";
+        } else {
+            return $query . " LIMIT $from, $count";
+        }
+    }
+
+    // }}}
+    // {{{ mysqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_mysql::errorNative(), DB_common::errorCode()
+     */
+    function mysqlRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
+                $this->errorcode_map[1022] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL;
+                $this->errorcode_map[1062] = DB_ERROR_CONSTRAINT;
+            } else {
+                // Doing this in case mode changes during runtime.
+                $this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS;
+            }
+            $errno = $this->errorCode(mysql_errno($this->connection));
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 @mysql_errno($this->connection) . ' ** ' .
+                                 @mysql_error($this->connection));
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        return @mysql_errno($this->connection);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @mysql_list_fields($this->dsn['database'],
+                                     $result, $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->mysqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @mysql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $case_func(@mysql_field_table($id, $i)),
+                'name'  => $case_func(@mysql_field_name($id, $i)),
+                'type'  => @mysql_field_type($id, $i),
+                'len'   => @mysql_field_len($id, $i),
+                'flags' => @mysql_field_flags($id, $i),
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @mysql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SHOW TABLES';
+            case 'users':
+                return 'SELECT DISTINCT User FROM mysql.user';
+            case 'databases':
+                return 'SHOW DATABASES';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/lib/phpFlickr/PEAR/DB/pgsql.php b/lib/phpFlickr/PEAR/DB/pgsql.php
new file mode 100644
index 000000000..1e58f48d6
--- /dev/null
+++ b/lib/phpFlickr/PEAR/DB/pgsql.php
@@ -0,0 +1,1097 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's pgsql extension
+ * for interacting with PostgreSQL databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Rui Hirokawa <hirokawa@php.net>
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: pgsql.php 32 2005-08-01 06:21:02Z dancoulter $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's pgsql extension
+ * for interacting with PostgreSQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Rui Hirokawa <hirokawa@php.net>
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_pgsql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'pgsql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'pgsql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => '4.3.0',
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => true,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The number of rows affected by a data manipulation query
+     * @var integer
+     */
+    var $affected = 0;
+
+    /**
+     * The current row being looked at in fetchInto()
+     * @var array
+     * @access private
+     */
+    var $row = array();
+
+    /**
+     * The number of rows in a given result set
+     * @var array
+     * @access private
+     */
+    var $_num_rows = array();
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_pgsql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's pgsql driver supports the following extra DSN options:
+     *   + connect_timeout  How many seconds to wait for a connection to
+     *                       be established.  Available since PEAR DB 1.7.0.
+     *   + new_link         If set to true, causes subsequent calls to
+     *                       connect() to return a new connection link
+     *                       instead of the existing one.  WARNING: this is
+     *                       not portable to other DBMS's.  Available only
+     *                       if PHP is >= 4.3.0 and PEAR DB is >= 1.7.0.
+     *   + options          Command line options to be sent to the server.
+     *                       Available since PEAR DB 1.6.4.
+     *   + service          Specifies a service name in pg_service.conf that
+     *                       holds additional connection parameters.
+     *                       Available since PEAR DB 1.7.0.
+     *   + sslmode          How should SSL be used when connecting?  Values:
+     *                       disable, allow, prefer or require.
+     *                       Available since PEAR DB 1.7.0.
+     *   + tty              This was used to specify where to send server
+     *                       debug output.  Available since PEAR DB 1.6.4.
+     *
+     * Example of connecting to a new link via a socket:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * $dsn = 'pgsql://user:pass@unix(/tmp)/dbname?new_link=true';
+     * $options = array(
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     * 
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     *
+     * @link http://www.postgresql.org/docs/current/static/libpq.html#LIBPQ-CONNECT
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('pgsql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $protocol = $dsn['protocol'] ? $dsn['protocol'] : 'tcp';
+
+        $params = array('');
+        if ($protocol == 'tcp') {
+            if ($dsn['hostspec']) {
+                $params[0] .= 'host=' . $dsn['hostspec'];
+            }
+            if ($dsn['port']) {
+                $params[0] .= ' port=' . $dsn['port'];
+            }
+        } elseif ($protocol == 'unix') {
+            // Allow for pg socket in non-standard locations.
+            if ($dsn['socket']) {
+                $params[0] .= 'host=' . $dsn['socket'];
+            }
+            if ($dsn['port']) {
+                $params[0] .= ' port=' . $dsn['port'];
+            }
+        }
+        if ($dsn['database']) {
+            $params[0] .= ' dbname=\'' . addslashes($dsn['database']) . '\'';
+        }
+        if ($dsn['username']) {
+            $params[0] .= ' user=\'' . addslashes($dsn['username']) . '\'';
+        }
+        if ($dsn['password']) {
+            $params[0] .= ' password=\'' . addslashes($dsn['password']) . '\'';
+        }
+        if (!empty($dsn['options'])) {
+            $params[0] .= ' options=' . $dsn['options'];
+        }
+        if (!empty($dsn['tty'])) {
+            $params[0] .= ' tty=' . $dsn['tty'];
+        }
+        if (!empty($dsn['connect_timeout'])) {
+            $params[0] .= ' connect_timeout=' . $dsn['connect_timeout'];
+        }
+        if (!empty($dsn['sslmode'])) {
+            $params[0] .= ' sslmode=' . $dsn['sslmode'];
+        }
+        if (!empty($dsn['service'])) {
+            $params[0] .= ' service=' . $dsn['service'];
+        }
+
+        if (isset($dsn['new_link'])
+            && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
+        {
+            if (version_compare(phpversion(), '4.3.0', '>=')) {
+                $params[] = PGSQL_CONNECT_FORCE_NEW;
+            }
+        }
+
+        $connect_function = $persistent ? 'pg_pconnect' : 'pg_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     $php_errormsg);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @pg_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @pg_exec($this->connection, 'begin;');
+                if (!$result) {
+                    return $this->pgsqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @pg_exec($this->connection, $query);
+        if (!$result) {
+            return $this->pgsqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if ($ismanip) {
+            $this->affected = @pg_affected_rows($result);
+            return DB_OK;
+        } elseif (preg_match('/^\s*\(*\s*(SELECT|EXPLAIN|SHOW)\s/si', $query)) {
+            /* PostgreSQL commands:
+               ABORT, ALTER, BEGIN, CLOSE, CLUSTER, COMMIT, COPY,
+               CREATE, DECLARE, DELETE, DROP TABLE, EXPLAIN, FETCH,
+               GRANT, INSERT, LISTEN, LOAD, LOCK, MOVE, NOTIFY, RESET,
+               REVOKE, ROLLBACK, SELECT, SELECT INTO, SET, SHOW,
+               UNLISTEN, UPDATE, VACUUM
+            */
+            $this->row[(int)$result] = 0; // reset the row counter.
+            $numrows = $this->numRows($result);
+            if (is_object($numrows)) {
+                return $numrows;
+            }
+            $this->_num_rows[(int)$result] = $numrows;
+            $this->affected = 0;
+            return $result;
+        } else {
+            $this->affected = 0;
+            return DB_OK;
+        }
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal pgsql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        $result_int = (int)$result;
+        $rownum = ($rownum !== null) ? $rownum : $this->row[$result_int];
+        if ($rownum >= $this->_num_rows[$result_int]) {
+            return null;
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @pg_fetch_array($result, $rownum, PGSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @pg_fetch_row($result, $rownum);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        $this->row[$result_int] = ++$rownum;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        if (is_resource($result)) {
+            unset($this->row[(int)$result]);
+            unset($this->_num_rows[(int)$result]);
+            $this->affected = 0;
+            return @pg_freeresult($result);
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * @deprecated  Deprecated in release 1.6.0
+     * @internal
+     */
+    function quote($str)
+    {
+        return $this->quoteSmart($str);
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     *                 + null = the string <samp>NULL</samp>
+     *                 + boolean = string <samp>TRUE</samp> or <samp>FALSE</samp>
+     *                 + integer or double = the unquoted number
+     *                 + other (including strings and numeric strings) =
+     *                   the data escaped according to MySQL's settings
+     *                   then encapsulated between single quotes
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 'TRUE' : 'FALSE';
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * {@internal PostgreSQL treats a backslash as an escape character,
+     * so they are escaped as well.
+     *
+     * Not using pg_escape_string() yet because it requires PostgreSQL
+     * to be at version 7.2 or greater.}}
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        return str_replace("'", "''", str_replace('\\', '\\\\', $str));
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @pg_numfields($result);
+        if (!$cols) {
+            return $this->pgsqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @pg_numrows($result);
+        if ($rows === null) {
+            return $this->pgsqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            // (disabled) hack to shut up error messages from libpq.a
+            //@fclose(@fopen("php://stderr", "w"));
+            $result = @pg_exec($this->connection, 'end;');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->pgsqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            $result = @pg_exec($this->connection, 'abort;');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->pgsqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        return $this->affected;
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_pgsql::createSequence(), DB_pgsql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = false;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result =& $this->query("SELECT NEXTVAL('${seqname}')");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = true;
+                $this->pushErrorHandling(PEAR_ERROR_RETURN);
+                $result = $this->createSequence($seq_name);
+                $this->popErrorHandling();
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        $result->free();
+        return $arr[0];
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_pgsql::nextID(), DB_pgsql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $result = $this->query("CREATE SEQUENCE ${seqname}");
+        return $result;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_pgsql::nextID(), DB_pgsql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP SEQUENCE '
+                            . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        return "$query LIMIT $count OFFSET $from";
+    }
+
+    // }}}
+    // {{{ pgsqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_pgsql::errorNative(), DB_pgsql::errorCode()
+     */
+    function pgsqlRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+        return $this->raiseError($errno, null, null, null, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * {@internal Error messages are used instead of error codes 
+     * in order to support older versions of PostgreSQL.}}
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return @pg_errormessage($this->connection);
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message.
+     *
+     * @param  string  $errormsg  error message returned from the database
+     * @return integer  an error number from a DB error constant
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/(relation|sequence|table).*does not exist|class .* not found/i'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/index .* does not exist/'
+                    => DB_ERROR_NOT_FOUND,
+                '/column .* does not exist/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/relation .* already exists/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/(divide|division) by zero$/i'
+                    => DB_ERROR_DIVZERO,
+                '/pg_atoi: error in .*: can\'t parse /i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/invalid input syntax for( type)? (integer|numeric)/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/value .* is out of range for type \w*int/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/integer out of range/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/value too long for type character/i'
+                    => DB_ERROR_INVALID,
+                '/attribute .* not found|relation .* does not have attribute/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/column .* specified in USING clause does not exist in (left|right) table/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/parser: parse error at or near/i'
+                    => DB_ERROR_SYNTAX,
+                '/syntax error at/'
+                    => DB_ERROR_SYNTAX,
+                '/column reference .* is ambiguous/i'
+                    => DB_ERROR_SYNTAX,
+                '/permission denied/'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/violates not-null constraint/'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/violates [\w ]+ constraint/'
+                    => DB_ERROR_CONSTRAINT,
+                '/referential integrity violation/'
+                    => DB_ERROR_CONSTRAINT,
+                '/more expressions than target columns/i'
+                    => DB_ERROR_VALUE_COUNT_ON_ROW,
+            );
+        }
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        // Fall back to DB_ERROR if there was no mapping.
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @pg_exec($this->connection, "SELECT * FROM $result LIMIT 0");
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->pgsqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @pg_numfields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@pg_fieldname($id, $i)),
+                'type'  => @pg_fieldtype($id, $i),
+                'len'   => @pg_fieldsize($id, $i),
+                'flags' => $got_string
+                           ? $this->_pgFieldFlags($id, $i, $result)
+                           : '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @pg_freeresult($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _pgFieldFlags()
+
+    /**
+     * Get a column's flags
+     *
+     * Supports "not_null", "default_value", "primary_key", "unique_key"
+     * and "multiple_key".  The default value is passed through
+     * rawurlencode() in case there are spaces in it.
+     *
+     * @param int $resource   the PostgreSQL result identifier
+     * @param int $num_field  the field number
+     *
+     * @return string  the flags
+     *
+     * @access private
+     */
+    function _pgFieldFlags($resource, $num_field, $table_name)
+    {
+        $field_name = @pg_fieldname($resource, $num_field);
+
+        $result = @pg_exec($this->connection, "SELECT f.attnotnull, f.atthasdef
+                                FROM pg_attribute f, pg_class tab, pg_type typ
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        if (@pg_numrows($result) > 0) {
+            $row = @pg_fetch_row($result, 0);
+            $flags  = ($row[0] == 't') ? 'not_null ' : '';
+
+            if ($row[1] == 't') {
+                $result = @pg_exec($this->connection, "SELECT a.adsrc
+                                    FROM pg_attribute f, pg_class tab, pg_type typ, pg_attrdef a
+                                    WHERE tab.relname = typ.typname AND typ.typrelid = f.attrelid
+                                    AND f.attrelid = a.adrelid AND f.attname = '$field_name'
+                                    AND tab.relname = '$table_name' AND f.attnum = a.adnum");
+                $row = @pg_fetch_row($result, 0);
+                $num = preg_replace("/'(.*)'::\w+/", "\\1", $row[0]);
+                $flags .= 'default_' . rawurlencode($num) . ' ';
+            }
+        } else {
+            $flags = '';
+        }
+        $result = @pg_exec($this->connection, "SELECT i.indisunique, i.indisprimary, i.indkey
+                                FROM pg_attribute f, pg_class tab, pg_type typ, pg_index i
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attrelid = i.indrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        $count = @pg_numrows($result);
+
+        for ($i = 0; $i < $count ; $i++) {
+            $row = @pg_fetch_row($result, $i);
+            $keys = explode(' ', $row[2]);
+
+            if (in_array($num_field + 1, $keys)) {
+                $flags .= ($row[0] == 't' && $row[1] == 'f') ? 'unique_key ' : '';
+                $flags .= ($row[1] == 't') ? 'primary_key ' : '';
+                if (count($keys) > 1)
+                    $flags .= 'multiple_key ';
+            }
+        }
+
+        return trim($flags);
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT c.relname AS "Name"'
+                        . ' FROM pg_class c, pg_user u'
+                        . ' WHERE c.relowner = u.usesysid'
+                        . " AND c.relkind = 'r'"
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_views'
+                        . '  WHERE viewname = c.relname)'
+                        . " AND c.relname !~ '^(pg_|sql_)'"
+                        . ' UNION'
+                        . ' SELECT c.relname AS "Name"'
+                        . ' FROM pg_class c'
+                        . " WHERE c.relkind = 'r'"
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_views'
+                        . '  WHERE viewname = c.relname)'
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_user'
+                        . '  WHERE usesysid = c.relowner)'
+                        . " AND c.relname !~ '^pg_'";
+            case 'schema.tables':
+                return "SELECT schemaname || '.' || tablename"
+                        . ' AS "Name"'
+                        . ' FROM pg_catalog.pg_tables'
+                        . ' WHERE schemaname NOT IN'
+                        . " ('pg_catalog', 'information_schema', 'pg_toast')";
+            case 'views':
+                // Table cols: viewname | viewowner | definition
+                return 'SELECT viewname from pg_views WHERE schemaname'
+                        . " NOT IN ('information_schema', 'pg_catalog')";
+            case 'users':
+                // cols: usename |usesysid|usecreatedb|usetrace|usesuper|usecatupd|passwd  |valuntil
+                return 'SELECT usename FROM pg_user';
+            case 'databases':
+                return 'SELECT datname FROM pg_database';
+            case 'functions':
+            case 'procedures':
+                return 'SELECT proname FROM pg_proc WHERE proowner <> 1';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/lib/phpFlickr/PEAR/DB/storage.php b/lib/phpFlickr/PEAR/DB/storage.php
new file mode 100644
index 000000000..f597b36d7
--- /dev/null
+++ b/lib/phpFlickr/PEAR/DB/storage.php
@@ -0,0 +1,504 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Provides an object interface to a table row
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <stig@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: storage.php 32 2005-08-01 06:21:02Z dancoulter $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB class so it can be extended from
+ */
+require_once 'DB.php';
+
+/**
+ * Provides an object interface to a table row
+ *
+ * It lets you add, delete and change rows using objects rather than SQL
+ * statements.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <stig@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_storage extends PEAR
+{
+    // {{{ properties
+
+    /** the name of the table (or view, if the backend database supports
+        updates in views) we hold data from */
+    var $_table = null;
+
+    /** which column(s) in the table contains primary keys, can be a
+        string for single-column primary keys, or an array of strings
+        for multiple-column primary keys */
+    var $_keycolumn = null;
+
+    /** DB connection handle used for all transactions */
+    var $_dbh = null;
+
+    /** an assoc with the names of database fields stored as properties
+        in this object */
+    var $_properties = array();
+
+    /** an assoc with the names of the properties in this object that
+        have been changed since they were fetched from the database */
+    var $_changes = array();
+
+    /** flag that decides if data in this object can be changed.
+        objects that don't have their table's key column in their
+        property lists will be flagged as read-only. */
+    var $_readonly = false;
+
+    /** function or method that implements a validator for fields that
+        are set, this validator function returns true if the field is
+        valid, false if not */
+    var $_validator = null;
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * Constructor
+     *
+     * @param $table string the name of the database table
+     *
+     * @param $keycolumn mixed string with name of key column, or array of
+     * strings if the table has a primary key of more than one column
+     *
+     * @param $dbh object database connection object
+     *
+     * @param $validator mixed function or method used to validate
+     * each new value, called with three parameters: the name of the
+     * field/column that is changing, a reference to the new value and
+     * a reference to this object
+     *
+     */
+    function DB_storage($table, $keycolumn, &$dbh, $validator = null)
+    {
+        $this->PEAR('DB_Error');
+        $this->_table = $table;
+        $this->_keycolumn = $keycolumn;
+        $this->_dbh = $dbh;
+        $this->_readonly = false;
+        $this->_validator = $validator;
+    }
+
+    // }}}
+    // {{{ _makeWhere()
+
+    /**
+     * Utility method to build a "WHERE" clause to locate ourselves in
+     * the table.
+     *
+     * XXX future improvement: use rowids?
+     *
+     * @access private
+     */
+    function _makeWhere($keyval = null)
+    {
+        if (is_array($this->_keycolumn)) {
+            if ($keyval === null) {
+                for ($i = 0; $i < sizeof($this->_keycolumn); $i++) {
+                    $keyval[] = $this->{$this->_keycolumn[$i]};
+                }
+            }
+            $whereclause = '';
+            for ($i = 0; $i < sizeof($this->_keycolumn); $i++) {
+                if ($i > 0) {
+                    $whereclause .= ' AND ';
+                }
+                $whereclause .= $this->_keycolumn[$i];
+                if (is_null($keyval[$i])) {
+                    // there's not much point in having a NULL key,
+                    // but we support it anyway
+                    $whereclause .= ' IS NULL';
+                } else {
+                    $whereclause .= ' = ' . $this->_dbh->quote($keyval[$i]);
+                }
+            }
+        } else {
+            if ($keyval === null) {
+                $keyval = @$this->{$this->_keycolumn};
+            }
+            $whereclause = $this->_keycolumn;
+            if (is_null($keyval)) {
+                // there's not much point in having a NULL key,
+                // but we support it anyway
+                $whereclause .= ' IS NULL';
+            } else {
+                $whereclause .= ' = ' . $this->_dbh->quote($keyval);
+            }
+        }
+        return $whereclause;
+    }
+
+    // }}}
+    // {{{ setup()
+
+    /**
+     * Method used to initialize a DB_storage object from the
+     * configured table.
+     *
+     * @param $keyval mixed the key[s] of the row to fetch (string or array)
+     *
+     * @return int DB_OK on success, a DB error if not
+     */
+    function setup($keyval)
+    {
+        $whereclause = $this->_makeWhere($keyval);
+        $query = 'SELECT * FROM ' . $this->_table . ' WHERE ' . $whereclause;
+        $sth = $this->_dbh->query($query);
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        $row = $sth->fetchRow(DB_FETCHMODE_ASSOC);
+        if (DB::isError($row)) {
+            return $row;
+        }
+        if (!$row) {
+            return $this->raiseError(null, DB_ERROR_NOT_FOUND, null, null,
+                                     $query, null, true);
+        }
+        foreach ($row as $key => $value) {
+            $this->_properties[$key] = true;
+            $this->$key = $value;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ insert()
+
+    /**
+     * Create a new (empty) row in the configured table for this
+     * object.
+     */
+    function insert($newpk)
+    {
+        if (is_array($this->_keycolumn)) {
+            $primarykey = $this->_keycolumn;
+        } else {
+            $primarykey = array($this->_keycolumn);
+        }
+        settype($newpk, "array");
+        for ($i = 0; $i < sizeof($primarykey); $i++) {
+            $pkvals[] = $this->_dbh->quote($newpk[$i]);
+        }
+
+        $sth = $this->_dbh->query("INSERT INTO $this->_table (" .
+                                  implode(",", $primarykey) . ") VALUES(" .
+                                  implode(",", $pkvals) . ")");
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        if (sizeof($newpk) == 1) {
+            $newpk = $newpk[0];
+        }
+        $this->setup($newpk);
+    }
+
+    // }}}
+    // {{{ toString()
+
+    /**
+     * Output a simple description of this DB_storage object.
+     * @return string object description
+     */
+    function toString()
+    {
+        $info = strtolower(get_class($this));
+        $info .= " (table=";
+        $info .= $this->_table;
+        $info .= ", keycolumn=";
+        if (is_array($this->_keycolumn)) {
+            $info .= "(" . implode(",", $this->_keycolumn) . ")";
+        } else {
+            $info .= $this->_keycolumn;
+        }
+        $info .= ", dbh=";
+        if (is_object($this->_dbh)) {
+            $info .= $this->_dbh->toString();
+        } else {
+            $info .= "null";
+        }
+        $info .= ")";
+        if (sizeof($this->_properties)) {
+            $info .= " [loaded, key=";
+            $keyname = $this->_keycolumn;
+            if (is_array($keyname)) {
+                $info .= "(";
+                for ($i = 0; $i < sizeof($keyname); $i++) {
+                    if ($i > 0) {
+                        $info .= ",";
+                    }
+                    $info .= $this->$keyname[$i];
+                }
+                $info .= ")";
+            } else {
+                $info .= $this->$keyname;
+            }
+            $info .= "]";
+        }
+        if (sizeof($this->_changes)) {
+            $info .= " [modified]";
+        }
+        return $info;
+    }
+
+    // }}}
+    // {{{ dump()
+
+    /**
+     * Dump the contents of this object to "standard output".
+     */
+    function dump()
+    {
+        foreach ($this->_properties as $prop => $foo) {
+            print "$prop = ";
+            print htmlentities($this->$prop);
+            print "<br />\n";
+        }
+    }
+
+    // }}}
+    // {{{ &create()
+
+    /**
+     * Static method used to create new DB storage objects.
+     * @param $data assoc. array where the keys are the names
+     *              of properties/columns
+     * @return object a new instance of DB_storage or a subclass of it
+     */
+    function &create($table, &$data)
+    {
+        $classname = strtolower(get_class($this));
+        $obj =& new $classname($table);
+        foreach ($data as $name => $value) {
+            $obj->_properties[$name] = true;
+            $obj->$name = &$value;
+        }
+        return $obj;
+    }
+
+    // }}}
+    // {{{ loadFromQuery()
+
+    /**
+     * Loads data into this object from the given query.  If this
+     * object already contains table data, changes will be saved and
+     * the object re-initialized first.
+     *
+     * @param $query SQL query
+     *
+     * @param $params parameter list in case you want to use
+     * prepare/execute mode
+     *
+     * @return int DB_OK on success, DB_WARNING_READ_ONLY if the
+     * returned object is read-only (because the object's specified
+     * key column was not found among the columns returned by $query),
+     * or another DB error code in case of errors.
+     */
+// XXX commented out for now
+/*
+    function loadFromQuery($query, $params = null)
+    {
+        if (sizeof($this->_properties)) {
+            if (sizeof($this->_changes)) {
+                $this->store();
+                $this->_changes = array();
+            }
+            $this->_properties = array();
+        }
+        $rowdata = $this->_dbh->getRow($query, DB_FETCHMODE_ASSOC, $params);
+        if (DB::isError($rowdata)) {
+            return $rowdata;
+        }
+        reset($rowdata);
+        $found_keycolumn = false;
+        while (list($key, $value) = each($rowdata)) {
+            if ($key == $this->_keycolumn) {
+                $found_keycolumn = true;
+            }
+            $this->_properties[$key] = true;
+            $this->$key = &$value;
+            unset($value); // have to unset, or all properties will
+                           // refer to the same value
+        }
+        if (!$found_keycolumn) {
+            $this->_readonly = true;
+            return DB_WARNING_READ_ONLY;
+        }
+        return DB_OK;
+    }
+ */
+
+    // }}}
+    // {{{ set()
+
+    /**
+     * Modify an attriute value.
+     */
+    function set($property, $newvalue)
+    {
+        // only change if $property is known and object is not
+        // read-only
+        if ($this->_readonly) {
+            return $this->raiseError(null, DB_WARNING_READ_ONLY, null,
+                                     null, null, null, true);
+        }
+        if (@isset($this->_properties[$property])) {
+            if (empty($this->_validator)) {
+                $valid = true;
+            } else {
+                $valid = @call_user_func($this->_validator,
+                                         $this->_table,
+                                         $property,
+                                         $newvalue,
+                                         $this->$property,
+                                         $this);
+            }
+            if ($valid) {
+                $this->$property = $newvalue;
+                if (empty($this->_changes[$property])) {
+                    $this->_changes[$property] = 0;
+                } else {
+                    $this->_changes[$property]++;
+                }
+            } else {
+                return $this->raiseError(null, DB_ERROR_INVALID, null,
+                                         null, "invalid field: $property",
+                                         null, true);
+            }
+            return true;
+        }
+        return $this->raiseError(null, DB_ERROR_NOSUCHFIELD, null,
+                                 null, "unknown field: $property",
+                                 null, true);
+    }
+
+    // }}}
+    // {{{ &get()
+
+    /**
+     * Fetch an attribute value.
+     *
+     * @param string attribute name
+     *
+     * @return attribute contents, or null if the attribute name is
+     * unknown
+     */
+    function &get($property)
+    {
+        // only return if $property is known
+        if (isset($this->_properties[$property])) {
+            return $this->$property;
+        }
+        $tmp = null;
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ _DB_storage()
+
+    /**
+     * Destructor, calls DB_storage::store() if there are changes
+     * that are to be kept.
+     */
+    function _DB_storage()
+    {
+        if (sizeof($this->_changes)) {
+            $this->store();
+        }
+        $this->_properties = array();
+        $this->_changes = array();
+        $this->_table = null;
+    }
+
+    // }}}
+    // {{{ store()
+
+    /**
+     * Stores changes to this object in the database.
+     *
+     * @return DB_OK or a DB error
+     */
+    function store()
+    {
+        foreach ($this->_changes as $name => $foo) {
+            $params[] = &$this->$name;
+            $vars[] = $name . ' = ?';
+        }
+        if ($vars) {
+            $query = 'UPDATE ' . $this->_table . ' SET ' .
+                implode(', ', $vars) . ' WHERE ' .
+                $this->_makeWhere();
+            $stmt = $this->_dbh->prepare($query);
+            $res = $this->_dbh->execute($stmt, $params);
+            if (DB::isError($res)) {
+                return $res;
+            }
+            $this->_changes = array();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ remove()
+
+    /**
+     * Remove the row represented by this object from the database.
+     *
+     * @return mixed DB_OK or a DB error
+     */
+    function remove()
+    {
+        if ($this->_readonly) {
+            return $this->raiseError(null, DB_WARNING_READ_ONLY, null,
+                                     null, null, null, true);
+        }
+        $query = 'DELETE FROM ' . $this->_table .' WHERE '.
+            $this->_makeWhere();
+        $res = $this->_dbh->query($query);
+        if (DB::isError($res)) {
+            return $res;
+        }
+        foreach ($this->_properties as $prop => $foo) {
+            unset($this->$prop);
+        }
+        $this->_properties = array();
+        $this->_changes = array();
+        return DB_OK;
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>