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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 */ namespace PMA\libraries\plugins\transformations\abs; use PMA\libraries\plugins\TransformationsPlugin; /** * 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. $options = $this->getOptions($options, array(0, 'all', '…')); if ($options[1] != 'all') { $newtext = mb_substr( $buffer, $options[0], $options[1] ); } else { $newtext = mb_substr($buffer, $options[0]); } $length = mb_strlen($newtext); $baselength = mb_strlen($buffer); if ($length != $baselength) { if ($options[0] != 0) { $newtext = $options[2] . $newtext; } if (($length + $options[0]) != $baselength) { $newtext .= $options[2]; } } return htmlspecialchars($newtext); } /* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */ /** * Gets the transformation name of the specific plugin * * @return string */ public static function getName() { return "Substring"; } }
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