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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2017 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\TabCompletion\Matcher;
/**
* A PHP keyword tab completion Matcher.
*
* This matcher provides completion for all function-like PHP keywords.
*
* @author Marc Garcia <markcial@gmail.com>
*/
class KeywordsMatcher extends AbstractMatcher
{
protected $keywords = array(
'array', 'clone', 'declare', 'die', 'echo', 'empty', 'eval', 'exit', 'include',
'include_once', 'isset', 'list', 'print', 'require', 'require_once', 'unset',
);
protected $mandatoryStartKeywords = array(
'die', 'echo', 'print', 'unset',
);
/**
* Get all (completable) PHP keywords.
*
* @return array
*/
public function getKeywords()
{
return $this->keywords;
}
/**
* Check whether $keyword is a (completable) PHP keyword.
*
* @param string $keyword
*
* @return bool
*/
public function isKeyword($keyword)
{
return in_array($keyword, $this->keywords);
}
/**
* {@inheritdoc}
*/
public function getMatches(array $tokens, array $info = array())
{
$input = $this->getInput($tokens);
return array_filter($this->keywords, function ($keyword) use ($input) {
return AbstractMatcher::startsWith($input, $keyword);
});
}
/**
* {@inheritdoc}
*/
public function hasMatched(array $tokens)
{
$token = array_pop($tokens);
$prevToken = array_pop($tokens);
switch (true) {
case self::hasToken(array(self::T_OPEN_TAG, self::T_VARIABLE), $token):
// case is_string($token) && $token === '$':
case self::hasToken(array(self::T_OPEN_TAG, self::T_VARIABLE), $prevToken) &&
self::tokenIs($token, self::T_STRING):
case self::isOperator($token):
return true;
}
return false;
}
}