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<?php
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<?php
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/*
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/*
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 * This file is part of Psy Shell.
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 * This file is part of Psy Shell.
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 *
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 *
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 * (c) 2012-2022 Justin Hileman
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 * (c) 2012-2023 Justin Hileman
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 *
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 * file that was distributed with this source code.
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    /**
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    /**
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     * Whether or not a docblock contains a given @tag.
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     * Whether or not a docblock contains a given @tag.
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     *
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     *
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     * @param string $tag The name of the @tag to check for
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     *
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     * @return bool
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     * @param string $tag The name of the @tag to check for
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     */
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     */
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    public function hasTag(string $tag): bool
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    public function hasTag(string $tag): bool
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    {
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    {
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        return \is_array($this->tags) && \array_key_exists($tag, $this->tags);
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        return \is_array($this->tags) && \array_key_exists($tag, $this->tags);
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    /**
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    /**
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     * The value of a tag.
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     * The value of a tag.
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     *
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     *
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     * @param string $tag
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     * @param string $tag
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     *
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     *
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     * @return array
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     * @return array|null
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     */
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     */
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    public function tag(string $tag): array
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    public function tag(string $tag)
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    {
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    {
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        // TODO: Add proper null-type return values once the lowest PHP version supported is 7.1
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        return $this->hasTag($tag) ? $this->tags[$tag] : null;
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        return $this->hasTag($tag) ? $this->tags[$tag] : null;
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    }
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    }
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    /**
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    /**
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     * Whether or not a string begins with a @tag.
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     * Whether or not a string begins with a @tag.
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     *
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     *
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     * @param string $str
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     *
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     * @return bool
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     * @param string $str
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     */
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     */
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    public static function isTagged(string $str): bool
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    public static function isTagged(string $str): bool
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    {
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    {
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        return isset($str[1]) && $str[0] === '@' && !\preg_match('/[^A-Za-z]/', $str[1]);
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        return isset($str[1]) && $str[0] === '@' && !\preg_match('/[^A-Za-z]/', $str[1]);