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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Replacement array for FSS with fallback to strtr()
* Supports lazy initialisation of FSS resource
*/
class ReplacementArray {
private $data = false;
private $fss = false;
/**
* Create an object with the specified replacement array
* The array should have the same form as the replacement array for strtr()
* @param array $data
*/
public function __construct( $data = array() ) {
$this->data = $data;
}
/**
* @return array
*/
public function __sleep() {
return array( 'data' );
}
public function __wakeup() {
$this->fss = false;
}
/**
* Set the whole replacement array at once
* @param array $data
*/
public function setArray( $data ) {
$this->data = $data;
$this->fss = false;
}
/**
* @return array|bool
*/
public function getArray() {
return $this->data;
}
/**
* Set an element of the replacement array
* @param string $from
* @param string $to
*/
public function setPair( $from, $to ) {
$this->data[$from] = $to;
$this->fss = false;
}
/**
* @param array $data
*/
public function mergeArray( $data ) {
$this->data = array_merge( $this->data, $data );
$this->fss = false;
}
/**
* @param ReplacementArray $other
*/
public function merge( ReplacementArray $other ) {
$this->data = array_merge( $this->data, $other->data );
$this->fss = false;
}
/**
* @param string $from
*/
public function removePair( $from ) {
unset( $this->data[$from] );
$this->fss = false;
}
/**
* @param array $data
*/
public function removeArray( $data ) {
foreach ( $data as $from => $to ) {
$this->removePair( $from );
}
$this->fss = false;
}
/**
* @param string $subject
* @return string
*/
public function replace( $subject ) {
if ( function_exists( 'fss_prep_replace' ) ) {
if ( $this->fss === false ) {
$this->fss = fss_prep_replace( $this->data );
}
$result = fss_exec_replace( $this->fss, $subject );
} else {
$result = strtr( $subject, $this->data );
}
return $result;
}
}
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