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Direktori : /home2/selectio/www/myclassicfit.com/vendor/psy/psysh/src/TabCompletion/ |
Current File : /home2/selectio/www/myclassicfit.com/vendor/psy/psysh/src/TabCompletion/AutoCompleter.php |
<?php /* * This file is part of Psy Shell. * * (c) 2012-2023 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Psy\TabCompletion; use Psy\TabCompletion\Matcher\AbstractMatcher; /** * A readline tab completion service. * * @author Marc Garcia <markcial@gmail.com> */ class AutoCompleter { /** @var Matcher\AbstractMatcher[] */ protected $matchers; /** * Register a tab completion Matcher. * * @param AbstractMatcher $matcher */ public function addMatcher(AbstractMatcher $matcher) { $this->matchers[] = $matcher; } /** * Activate readline tab completion. */ public function activate() { \readline_completion_function([&$this, 'callback']); } /** * Handle readline completion. * * @param string $input Readline current word * @param int $index Current word index * @param array $info readline_info() data * * @return array */ public function processCallback(string $input, int $index, array $info = []): array { // Some (Windows?) systems provide incomplete `readline_info`, so let's // try to work around it. $line = $info['line_buffer']; if (isset($info['end'])) { $line = \substr($line, 0, $info['end']); } if ($line === '' && $input !== '') { $line = $input; } $tokens = \token_get_all('<?php '.$line); // remove whitespaces $tokens = \array_filter($tokens, function ($token) { return !AbstractMatcher::tokenIs($token, AbstractMatcher::T_WHITESPACE); }); // reset index from 0 to remove missing index number $tokens = \array_values($tokens); $matches = []; foreach ($this->matchers as $matcher) { if ($matcher->hasMatched($tokens)) { $matches = \array_merge($matcher->getMatches($tokens), $matches); } } $matches = \array_unique($matches); return !empty($matches) ? $matches : ['']; } /** * The readline_completion_function callback handler. * * @see processCallback * * @param string $input * @param int $index * * @return array */ public function callback(string $input, int $index): array { return $this->processCallback($input, $index, \readline_info()); } /** * Remove readline callback handler on destruct. */ public function __destruct() { // PHP didn't implement the whole readline API when they first switched // to libedit. And they still haven't. if (\function_exists('readline_callback_handler_remove')) { \readline_callback_handler_remove(); } } }