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<?php |
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/** |
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* This file is part of PHP-Typography. |
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* |
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* Copyright 2017 Peter Putzer. |
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* |
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* This program is free software; you can redistribute it and/or modify modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* *** |
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* |
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* @package mundschenk-at/php-typography |
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* @license http://www.gnu.org/licenses/gpl-2.0.html |
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*/ |
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namespace PHP_Typography\Fixes\Node_Fixes; |
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use PHP_Typography\Fixes\Node_Fix; |
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use PHP_Typography\Settings; |
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use PHP_Typography\Strings; |
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/** |
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* All fixes that apply to textnodes should implement this interface. |
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* |
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* @author Peter Putzer <[email protected]> |
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* |
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* @since 5.0.0 |
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*/ |
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abstract class Abstract_Node_Fix implements Node_Fix { |
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/** |
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* Is this fix compatible with feeds? |
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* |
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* @var bool |
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*/ |
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private $feed_compatible; |
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/** |
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* Creates a new fix instance. |
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* |
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* @param bool $feed_compatible Optional. Default false. |
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*/ |
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public function __construct( $feed_compatible = false ) { |
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$this->feed_compatible = $feed_compatible; |
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} |
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/** |
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* Apply the fix to a given textnode. |
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* |
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* @param \DOMText $textnode Required. |
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* @param Settings $settings Required. |
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* @param bool $is_title Optional. Default false. |
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* |
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* @return void |
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*/ |
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abstract public function apply( \DOMText $textnode, Settings $settings, $is_title = false ); |
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/** |
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* Determines whether the fix should be applied to (RSS) feeds. |
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* |
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* @return bool |
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*/ |
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public function feed_compatible() { |
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return $this->feed_compatible; |
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} |
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/** |
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* Remove adjacent characters from given string. |
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* |
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* @since 4.2.2 |
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* @since 5.1.3 $prev_char and $next_char replaced with $prev_length and $next_length |
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* to support multi-characters replacements. |
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* @since 6.0.0 New required parameters for strlen() and substr() added. |
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* |
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* @param string $string The string. |
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* @param callable $strlen A strlen()-type function. |
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* @param callable $substr A substr()-type function. |
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* @param int $prev_length Optional. Default 0. The number of characters to remove at the beginning. |
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* @param int $next_length Optional. Default 0. The number of characters to remove at the end. |
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* |
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* @return string The string without the characters from adjacent nodes. |
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*/ |
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protected static function remove_adjacent_characters( $string, callable $strlen, callable $substr, $prev_length = 0, $next_length = 0 ) { |
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// Remove previous character. |
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if ( $prev_length > 0 ) { |
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$string = $substr( $string, $prev_length, $strlen( $string ) ); |
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} |
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// Remove next character. |
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if ( $next_length > 0 ) { |
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$string = $substr( $string, 0, $strlen( $string ) - $next_length ); |
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} |
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return $string; |
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} |
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} |
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mundschenk-at /
php-typography
