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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
namespace tool_brickfield\local\htmlchecker\common;
use tool_brickfield\local\htmlchecker\brickfield_accessibility;
/**
* This is a helper class which organizes all the HTML tags into groups for finding.
*
* @package tool_brickfield
* @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class html_elements {
/**
* @var array An array of HTML tag names and their attributes
*/
public static $htmlelements = [
'img' => ['text' => false],
'p' => ['text' => true],
'pre' => ['text' => true],
'span' => ['text' => true],
'div' => ['text' => true],
'applet' => ['text' => false],
'embed' => ['text' => false, 'media' => true],
'object' => ['text' => false, 'media' => true],
'area' => ['imagemap' => true],
'b' => ['text' => true, 'non-emphasis' => true],
'i' => ['text' => true, 'non-emphasis' => true],
'font' => ['text' => true, 'font' => true],
'h1' => ['text' => true, 'header' => true],
'h2' => ['text' => true, 'header' => true],
'h3' => ['text' => true, 'header' => true],
'h4' => ['text' => true, 'header' => true],
'h5' => ['text' => true, 'header' => true],
'h6' => ['text' => true, 'header' => true],
'ul' => ['text' => true, 'list' => true],
'dl' => ['text' => true, 'list' => true],
'ol' => ['text' => true, 'list' => true],
'blockquote' => ['text' => true, 'quote' => true],
'q' => ['text' => true, 'quote' => true],
'acronym' => ['acronym' => true, 'text' => true],
'abbr' => ['acronym' => true, 'text' => true],
'input' => ['form' => true],
'select' => ['form' => true],
'textarea' => ['form' => true],
brickfield_accessibility::BA_ERROR_TAG => ['text' => true],
];
/**
* Retrieves elements by an option.
* @param string $option The option to search fore
* @param bool $value Whether the option should be true or false
* @return array An array of HTML tag names
*/
public static function get_elements_by_option(string $option, bool $value = true): array {
$results = [];
foreach (self::$htmlelements as $k => $element) {
if (isset($element[$option]) && ($element[$option] == $value)) {
$results[] = $k;
}
}
return $results;
}
}
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