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: use Psy\Command\Command;
Chris@13: 
Chris@13: /**
Chris@13:  * A Psy Command tab completion Matcher.
Chris@13:  *
Chris@13:  * This matcher provides completion for all registered Psy Command names and
Chris@13:  * aliases.
Chris@13:  *
Chris@13:  * @author Marc Garcia <markcial@gmail.com>
Chris@13:  */
Chris@13: class CommandsMatcher extends AbstractMatcher
Chris@13: {
Chris@13:     /** @var string[] */
Chris@13:     protected $commands = [];
Chris@13: 
Chris@13:     /**
Chris@13:      * CommandsMatcher constructor.
Chris@13:      *
Chris@13:      * @param Command[] $commands
Chris@13:      */
Chris@13:     public function __construct(array $commands)
Chris@13:     {
Chris@13:         $this->setCommands($commands);
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * Set Commands for completion.
Chris@13:      *
Chris@13:      * @param Command[] $commands
Chris@13:      */
Chris@13:     public function setCommands(array $commands)
Chris@13:     {
Chris@13:         $names = [];
Chris@13:         foreach ($commands as $command) {
Chris@17:             $names = \array_merge([$command->getName()], $names);
Chris@17:             $names = \array_merge($command->getAliases(), $names);
Chris@13:         }
Chris@13:         $this->commands = $names;
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * Check whether a command $name is defined.
Chris@13:      *
Chris@13:      * @param string $name
Chris@13:      *
Chris@13:      * @return bool
Chris@13:      */
Chris@13:     protected function isCommand($name)
Chris@13:     {
Chris@17:         return \in_array($name, $this->commands);
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * Check whether input matches a defined command.
Chris@13:      *
Chris@13:      * @param string $name
Chris@13:      *
Chris@13:      * @return bool
Chris@13:      */
Chris@13:     protected function matchCommand($name)
Chris@13:     {
Chris@13:         foreach ($this->commands as $cmd) {
Chris@13:             if ($this->startsWith($name, $cmd)) {
Chris@13:                 return true;
Chris@13:             }
Chris@13:         }
Chris@13: 
Chris@13:         return false;
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function getMatches(array $tokens, array $info = [])
Chris@13:     {
Chris@13:         $input = $this->getInput($tokens);
Chris@13: 
Chris@17:         return \array_filter($this->commands, function ($command) use ($input) {
Chris@13:             return AbstractMatcher::startsWith($input, $command);
Chris@13:         });
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     public function hasMatched(array $tokens)
Chris@13:     {
Chris@17:         /* $openTag */ \array_shift($tokens);
Chris@17:         $command = \array_shift($tokens);
Chris@13: 
Chris@13:         switch (true) {
Chris@13:             case self::tokenIs($command, self::T_STRING) &&
Chris@13:                 !$this->isCommand($command[1]) &&
Chris@13:                 $this->matchCommand($command[1]) &&
Chris@13:                 empty($tokens):
Chris@13:                 return true;
Chris@13:         }
Chris@13: 
Chris@13:         return false;
Chris@13:     }
Chris@13: }