PHP_Typography\Fixes\Node_Fixes\Style_Caps_Fix

Complexity

Total Complexity

1

Size/Duplication

Total Lines	62
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	2	1

<?php
/**
 *  This file is part of PHP-Typography.
 *
 *  Copyright 2017 Peter Putzer.
 *
 *  This program 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *  ***
 *
 *  @package mundschenk-at/php-typography
 *  @license http://www.gnu.org/licenses/gpl-2.0.html
 */

namespace PHP_Typography\Fixes\Node_Fixes;

use PHP_Typography\DOM;
use PHP_Typography\Settings;
use PHP_Typography\U;

/**
 * Wraps words of all caps (may include numbers) in <span class="caps"> if enabled.
 *
 * Call before style_numbers().Only call if you are certain that no html tags have been
 * injected containing capital letters.
 *
 * @author Peter Putzer <github@mundschenk.at>
 *
 * @since 5.0.0
 */
class Style_Caps_Fix extends Simple_Style_Fix {
	/*
	// \p{Lu} equals upper case letters and should match non english characters; since PHP 4.4.0 and 5.1.0
	// for more info, see http://www.regextester.com/pregsyntax.html#regexp.reference.unicode
	$this->components[ Settings::STYLE_CAPS ]  = '
	(?<![\w\-_'.U::ZERO_WIDTH_SPACE.U::SOFT_HYPHEN.'])
	# negative lookbehind assertion
	(
	(?:							# CASE 1: " 9A "
	[0-9]+					# starts with at least one number
	\p{Lu}					# must contain at least one capital letter
	(?:\p{Lu}|[0-9]|\-|_|'.U::ZERO_WIDTH_SPACE.'|'.U::SOFT_HYPHEN.')*
	# may be followed by any number of numbers capital letters, hyphens, underscores, zero width spaces, or soft hyphens
	)
	|
	(?:							# CASE 2: " A9 "
	\p{Lu}					# starts with capital letter
	(?:\p{Lu}|[0-9])		# must be followed a number or capital letter
	(?:\p{Lu}|[0-9]|\-|_|'.U::ZERO_WIDTH_SPACE.'|'.U::SOFT_HYPHEN.')*
	# may be followed by any number of numbers capital letters, hyphens, underscores, zero width spaces, or soft hyphens

	)
	)
	(?![\w\-_'.U::ZERO_WIDTH_SPACE.U::SOFT_HYPHEN.'])
	# negative lookahead assertion
	'; // required modifiers: x (multiline pattern) u (utf8)
	*/

	// Servers with PCRE compiled without "--enable-unicode-properties" fail at \p{Lu} by returning an empty string (this leaving the screen void of text
	// thus are testing this alternative.
	const REGEX = '/
		(?<![\w' . self::COMBINING_MARKS . ']) # negative lookbehind assertion
		(
			(?:							# CASE 1: " 9A "
				[0-9]+					# starts with at least one number
				(?:[' . self::COMBINING_MARKS . '])*
						                # may contain hyphens, underscores, zero width spaces, or soft hyphens,
				[A-ZÀ-ÖØ-Ý]				# but must contain at least one capital letter
				(?:[A-ZÀ-ÖØ-Ý]|[0-9]|[' . self::COMBINING_MARKS . '])*
										# may be followed by any number of numbers capital letters, hyphens, underscores, zero width spaces, or soft hyphens
			)
			|
			(?:							# CASE 2: " A9 "
				[A-ZÀ-ÖØ-Ý]				# starts with capital letter
				(?:[A-ZÀ-ÖØ-Ý]|[0-9])	# must be followed a number or capital letter
				(?:[A-ZÀ-ÖØ-Ý]|[0-9]|[' . self::COMBINING_MARKS . '])*
										# may be followed by any number of numbers capital letters, hyphens, underscores, zero width spaces, or soft hyphens
			)
		)
		(?![\w' . self::COMBINING_MARKS . ']) # negative lookahead assertion
	/Sxu';

	const COMBINING_MARKS = '\-_' . U::HYPHEN . U::SOFT_HYPHEN . U::ZERO_WIDTH_SPACE; // Needs to be part of character class.

	/**
	 * Creates a new node fix with a class.
	 *
	 * @param string $css_class       HTML class used in markup.
	 * @param bool   $feed_compatible Optional. Default false.
	 */
	public function __construct( $css_class, $feed_compatible = false ) {
		parent::__construct( self::REGEX, Settings::STYLE_CAPS, $css_class, $feed_compatible );
	}
}