/**
* Get the appropriate Readline implementation class name.
*
* @see self::getReadline
*
* @return string
*/
private function getReadlineClass()
{
if ($this->useReadline()) {
if (GNUReadline::isSupported()) {
return 'Psy\\Readline\\GNUReadline';
} elseif (Libedit::isSupported()) {
return 'Psy\\Readline\\Libedit';
}
}
return 'Psy\\Readline\\Transient';
}
/**
* {@inheritDoc}
*/
public function clearHistory()
{
$this->history = array();
return parent::clearHistory();
}
/**
* Libedit being a BSD library,
* it doesn't support non-unix line separators.
*/
public function testLinebreaksSupport()
{
$readline = new Libedit($this->historyFile);
file_put_contents($this->historyFile, "foo\rbar\nbaz\r\nw00t", FILE_APPEND);
$this->assertEquals(array("foo\rbar", "baz\r", 'w00t'), $readline->listHistory());
$readline->clearHistory();
}
/**
* Get the Psy Shell readline service.
*
* By default, this service uses (in order of preference):
*
* * GNU Readline
* * Libedit
* * A transient array-based readline emulation.
*
* @return Readline
*/
public function getReadline()
{
if (!isset($this->readline)) {
if ($this->useReadline()) {
$historyFile = $this->getHistoryFile();
if (GNUReadline::isSupported()) {
$this->readline = new GNUReadline($historyFile);
} elseif (Libedit::isSupported()) {
$this->readline = new Libedit($historyFile);
} elseif (LibeditTransient::isSupported()) {
$this->readline = new LibeditTransient($historyFile);
}
}
if (!isset($this->readline)) {
$this->readline = new Transient();
}
}
return $this->readline;
}
