<?php

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// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue

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// SPDX-License-Identifier: BSD-3-Clause

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declare(strict_types=1);

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namespace SimplePie;

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/**

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* Manages all category-related data

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*

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* Used by {@see \SimplePie\Item::get_category()} and {@see \SimplePie\Item::get_categories()}

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*

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* This class can be overloaded with {@see \SimplePie\SimplePie::set_category_class()}

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*/

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class Category

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{

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/**

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* Category identifier

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*

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* @var string|null

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* @see get_term

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*/

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public $term;

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/**

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* Categorization scheme identifier

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*

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* @var string|null

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* @see get_scheme()

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*/

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public $scheme;

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/**

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* Human readable label

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*

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* @var string|null

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* @see get_label()

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*/

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public $label;

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/**

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* Category type

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*

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* category for <category>

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* subject for <dc:subject>

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*

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* @var string|null

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* @see get_type()

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*/

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public $type;

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/**

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* Constructor, used to input the data

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*

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* @param string|null $term

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* @param string|null $scheme

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* @param string|null $label

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* @param string|null $type

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*/

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public function __construct(?string $term = null, ?string $scheme = null, ?string $label = null, ?string $type = null)

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{

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$this->term = $term;

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$this->scheme = $scheme;

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$this->label = $label;

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$this->type = $type;

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}

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/**

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* String-ified version

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*

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* @return string

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*/

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public function __toString()

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{

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// There is no $this->data here

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return md5(serialize($this));

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}

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/**

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* Get the category identifier

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*

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* @return string|null

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*/

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public function get_term()

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{

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return $this->term;

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}

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/**

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* Get the categorization scheme identifier

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*

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* @return string|null

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*/

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public function get_scheme()

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{

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return $this->scheme;

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}

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/**

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* Get the human readable label

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*

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* @param bool $strict

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* @return string|null

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*/

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public function get_label(bool $strict = false)

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{

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if ($this->label === null && $strict !== true) {

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return $this->get_term();

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}

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return $this->label;

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}

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/**

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* Get the category type

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*

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* @return string|null

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*/

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public function get_type()

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{

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return $this->type;

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}

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}

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class_alias('SimplePie\Category', 'SimplePie_Category');

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