<?php

/*
 * Textpattern Content Management System
 * http://textpattern.com
 *
 * Copyright (C) 2016 The Textpattern Development Team
 *
 * This file is part of Textpattern.
 *
 * Textpattern is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, version 2.
 *
 * Textpattern is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Textpattern. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * Template partials tags.
 *
 * @since  4.6.0
 */

namespace Textpattern\Tag\Syntax;

class Partial
{
    /**
     * Returns the inner content of the enclosing &lt;txp:output_form /&gt; tag.
     *
     * @return string
     */

    public static function renderYield()
    {
        global $yield;

        $inner = end($yield);

        return isset($inner) ? $inner : '';
    }

    /**
     * Conditional for yield.
     *
     * @param  array  $atts
     * @param  string $thing
     * @return string
     */

    public static function renderIfYield($atts, $thing)
    {
        global $yield;

        extract(lAtts(array(
            'value' => null,
        ), $atts));

        $inner = end($yield);

        return parse(EvalElse($thing, $inner !== null && ($value === null || (string)$inner === (string)$value)));
    }
}