Chris@13: <?php
Chris@13: 
Chris@13: /*
Chris@13:  * This file is part of Psy Shell.
Chris@13:  *
Chris@13:  * (c) 2012-2018 Justin Hileman
Chris@13:  *
Chris@13:  * For the full copyright and license information, please view the LICENSE
Chris@13:  * file that was distributed with this source code.
Chris@13:  */
Chris@13: 
Chris@13: namespace Psy\TabCompletion\Matcher;
Chris@13: 
Chris@13: /**
Chris@13:  * A variable name tab completion Matcher.
Chris@13:  *
Chris@13:  * This matcher provides completion for variable names in the current Context.
Chris@13:  *
Chris@13:  * @author Marc Garcia <markcial@gmail.com>
Chris@13:  */
Chris@13: class VariablesMatcher extends AbstractContextAwareMatcher
Chris@13: {
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function getMatches(array $tokens, array $info = [])
Chris@13:     {
Chris@17:         $var = \str_replace('$', '', $this->getInput($tokens));
Chris@13: 
Chris@17:         return \array_filter(\array_keys($this->getVariables()), function ($variable) use ($var) {
Chris@13:             return AbstractMatcher::startsWith($var, $variable);
Chris@13:         });
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function hasMatched(array $tokens)
Chris@13:     {
Chris@17:         $token = \array_pop($tokens);
Chris@13: 
Chris@13:         switch (true) {
Chris@13:             case self::hasToken([self::T_OPEN_TAG, self::T_VARIABLE], $token):
Chris@17:             case \is_string($token) && $token === '$':
Chris@13:             case self::isOperator($token):
Chris@13:                 return true;
Chris@13:         }
Chris@13: 
Chris@13:         return false;
Chris@13:     }
Chris@13: }