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<?php
/**
* Hoa
*
*
* @license
*
* New BSD License
*
* Copyright © 2007-2017, Hoa community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Hoa nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
namespace Psy\Readline\Hoa;
/**
* Class \Hoa\Console\Readline\Autocompleter\Path.
*
* Path autocompleter.
*/
class AutocompleterPath implements Autocompleter
{
/**
* Root is the current working directory.
*/
const PWD = null;
/**
* Root.
*/
protected $_root = null;
/**
* Iterator factory. Please, see the self::setIteratorFactory method.
*/
protected $_iteratorFactory = null;
/**
* Constructor.
*/
public function __construct(
string $root = null,
\Closure $iteratorFactory = null
) {
if (null === $root) {
$root = static::PWD;
}
if (null !== $root) {
$this->setRoot($root);
}
if (null !== $iteratorFactory) {
$this->setIteratorFactory($iteratorFactory);
}
}
/**
* Complete a word.
* Returns null for no word, a full-word or an array of full-words.
*/
public function complete(&$prefix)
{
$root = $this->getRoot();
if (static::PWD === $root) {
$root = \getcwd();
}
$path = $root.\DIRECTORY_SEPARATOR.$prefix;
if (!\is_dir($path)) {
$path = \dirname($path).\DIRECTORY_SEPARATOR;
$prefix = \basename($prefix);
} else {
$prefix = null;
}
$iteratorFactory = $this->getIteratorFactory() ?:
static::getDefaultIteratorFactory();
try {
$iterator = $iteratorFactory($path);
$out = [];
$length = \mb_strlen($prefix);
foreach ($iterator as $fileinfo) {
$filename = $fileinfo->getFilename();
if (null === $prefix ||
(\mb_substr($filename, 0, $length) === $prefix)) {
if ($fileinfo->isDir()) {
$out[] = $filename.'/';
} else {
$out[] = $filename;
}
}
}
} catch (\Exception $e) {
return null;
}
$count = \count($out);
if (1 === $count) {
return $out[0];
}
if (0 === $count) {
return null;
}
return $out;
}
/**
* Get definition of a word.
*/
public function getWordDefinition(): string
{
return '/?[\w\d\\_\-\.]+(/[\w\d\\_\-\.]*)*';
}
/**
* Set root.
*/
public function setRoot(string $root)
{
$old = $this->_root;
$this->_root = $root;
return $old;
}
/**
* Get root.
*/
public function getRoot()
{
return $this->_root;
}
/**
* Set iterator factory (a finder).
*/
public function setIteratorFactory(\Closure $iteratorFactory)
{
$old = $this->_iteratorFactory;
$this->_iteratorFactory = $iteratorFactory;
return $old;
}
/**
* Get iterator factory.
*/
public function getIteratorFactory()
{
return $this->_iteratorFactory;
}
/**
* Get default iterator factory (based on \DirectoryIterator).
*/
public static function getDefaultIteratorFactory()
{
return function ($path) {
return new \DirectoryIterator($path);
};
}
}