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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Abstract class for the substring transformations plugins
*
* @package PhpMyAdmin-Transformations
* @subpackage Substring
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Get the transformations interface */
require_once 'libraries/plugins/TransformationsPlugin.class.php';
/**
* Provides common methods for all of the substring transformations plugins.
*
* @package PhpMyAdmin
*/
abstract class SubstringTransformationsPlugin extends TransformationsPlugin
{
/**
* Gets the transformation description of the specific plugin
*
* @return string
*/
public static function getInfo()
{
return __(
'Displays a part of a string. The first option is the number of'
. ' characters to skip from the beginning of the string (Default 0).'
. ' The second option is the number of characters to return (Default:'
. ' until end of string). The third option is the string to append'
. ' and/or prepend when truncation occurs (Default: "…").'
);
}
/**
* Does the actual work of each specific transformations plugin.
*
* @param string $buffer text to be transformed
* @param array $options transformation options
* @param string $meta meta information
*
* @return string
*/
public function applyTransformation($buffer, $options = array(), $meta = '')
{
// possibly use a global transform and feed it with special options
// further operations on $buffer using the $options[] array.
if (!isset($options[0]) || $options[0] == '') {
$options[0] = 0;
}
if (!isset($options[1]) || $options[1] == '') {
$options[1] = 'all';
}
if (!isset($options[2]) || $options[2] == '') {
$options[2] = '…';
}
$newtext = '';
if ($options[1] != 'all') {
$newtext = $GLOBALS['PMA_String']->substr(
$buffer, $options[0], $options[1]
);
} else {
$newtext = $GLOBALS['PMA_String']->substr($buffer, $options[0]);
}
$length = strlen($newtext);
$baselength = strlen($buffer);
if ($length != $baselength) {
if ($options[0] != 0) {
$newtext = $options[2] . $newtext;
}
if (($length + $options[0]) != $baselength) {
$newtext .= $options[2];
}
}
return $newtext;
}
/**
* This method is called when any PluginManager to which the observer
* is attached calls PluginManager::notify()
*
* @param SplSubject $subject The PluginManager notifying the observer
* of an update.
*
* @todo implement
* @return void
*/
public function update (SplSubject $subject)
{
;
}
/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
/**
* Gets the transformation name of the specific plugin
*
* @return string
*/
public static function getName()
{
return "Substring";
}
}
?>
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