FunctionsMatcher.php
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FunctionsMatcher.php
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	<?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\Matcher;

	/**
	* A function name tab completion Matcher.
	*
	* This matcher provides completion for all internal and user-defined functions.
	*
	* @author Marc Garcia <markcial@gmail.com>
	*/
	class FunctionsMatcher extends AbstractMatcher
	{
	/**
	* {@inheritdoc}
	*/
	public function getMatches(array $tokens, array $info = []): array
	{
	$func = $this->getInput($tokens);

	$functions = \get_defined_functions();
	$allFunctions = \array_merge($functions['user'], $functions['internal']);

	return \array_filter($allFunctions, function ($function) use ($func) {
	return AbstractMatcher::startsWith($func, $function);
	});
	}

	/**
	* {@inheritdoc}
	*/
	public function hasMatched(array $tokens): bool
	{
	$token = \array_pop($tokens);
	$prevToken = \array_pop($tokens);

	switch (true) {
	case self::tokenIs($prevToken, self::T_NEW):
	return false;
	case self::hasToken([self::T_OPEN_TAG, self::T_STRING], $token):
	case self::isOperator($token):
	return true;
	}

	return false;
	}
	}