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<?php
/*
* Plugin Name: JSM Non-Breaking Space (nbsp) for French Content
* Text Domain: nbsp-french
* Domain Path: /languages
* Plugin URI: https://surniaulula.com/extend/plugins/nbsp-french/
* Assets URI: https://jsmoriss.github.io/nbsp-french/assets/
* Author: JS Morisset
* Author URI: https://surniaulula.com/
* License: GPLv3
* License URI: https://www.gnu.org/licenses/gpl.txt
* Description: Adds a non-breaking space (nbsp) between words and punctuation marks to avoid inappropriate line-breaks in French.
* Requires PHP: 7.4.33
* Requires At Least: 5.9
* Tested Up To: 6.6.2
* Version: 1.13.1
*
* Version Numbering: {major}.{minor}.{bugfix}[-{stage}.{level}]
*
* {major} Major structural code changes and/or incompatible API changes (ie. breaking changes).
* {minor} New functionality was added or improved in a backwards-compatible manner.
* {bugfix} Backwards-compatible bug fixes or small improvements.
* {stage}.{level} Pre-production release: dev < a (alpha) < b (beta) < rc (release candidate).
*
* Copyright 2012-2024 Jean-Sebastien Morisset (https://surniaulula.com/)
*/
if ( ! defined( 'ABSPATH' ) ) {
die( 'These aren\'t the droids you\'re looking for.' );
}
if ( ! class_exists( 'NbspFrench' ) ) {
class NbspFrench {
private static $instance = null; // NbspFrench class object.
private static $filters = array(
'the_title' => 1000,
'the_content' => 1000,
'the_excerpt' => 1000,
'comment_text' => 1000,
'widget_title' => 1000,
'widget_text' => 1000,
'woocommerce_short_description' => 1000,
);
public function __construct() {
add_action( 'plugins_loaded', array( $this, 'init_textdomain' ) );
foreach ( apply_filters( 'nbsp_french_add_filters', self::$filters ) as $filter_name => $filter_prio ) {
add_filter( $filter_name, array( __CLASS__, 'filter' ), $filter_prio );
}
}
public static function &get_instance() {
if ( null === self::$instance ) {
self::$instance = new self;
}
return self::$instance;
}
public function init_textdomain() {
load_plugin_textdomain( 'nbsp-french', false, 'nbsp-french/languages/' );
}
public static function filter( $html ) {
if ( ! is_string( $html ) || '' === $html ) { // Just in case.
return $html;
}
$fixed_html = '';
$has_french = $default_is_french = false !== strpos( $html, '<!--:fr-->' ) ? false : true;
/*
* http://character-code.com/currency-html-codes.php.
*/
$currencies = apply_filters( 'nbsp_french_currencies', '¤|¤|\$|¢|¢|£|£|¥|¥|₣|₣|€|€' );
/*
* Add newlines before/after HTML comments, pre, script, style, and svg code blocks.
*
* This allows us to detect these HTML sections and set $has_french to false, and then back to
* $default_is_french.
*/
$html = preg_replace( '/\r?\n?<(!--|pre|script|style|svg)/i', "\n" . '<$1', $html );
$html = preg_replace( '/(--|\/pre|\/script|\/style|\/svg)>\r?\n?/i', '$1>' . "\n", $html );
/*
* Spaces will be replaced by ' ' in the second set of parentheses (ie. $match[ 2 ]).
*
* PCRE modifier 'u' is used to treat pattern and subject strings as UTF-8.
*/
$pattern = apply_filters( 'nbsp_french_preg_first_second_last', array(
'/(«|«)( )(\(|\w)/u', // Quotation followed by parentheses or word.
'/(\w|\))( )([!\?:;%»]|»)/u', // Word or parentheses followed by puntuation.
'/([\.!\?])( )(»|»)/u', // Punctuation followed by quotation.
'/([ >]\d{1,3})(( \d{3,3})+)([\., <])/u', // 1 000, 1 000 000, etc.
'/(\d)( )(' . $currencies . ')/u', // Number followed by currency symbol.
) );
foreach ( preg_split( '/((\r?\n)|(\r\n?))/', $html ) as $line ) {
if ( ! $has_french && strpos( $line, '<!--:fr-->' ) ) {
$has_french = $default_is_french = true;
$fixed_html .= $line . "\n";
continue;
} elseif ( $has_french && strpos( $line, '<!--:-->' ) ) {
$has_french = $default_is_french = false;
$fixed_html .= $line . "\n";
continue;
} elseif ( preg_match( '/(--|\/pre|\/script|\/style|\/svg)>/i', $line ) ) {
$has_french = $default_is_french; // Back to default.
$fixed_html .= $line . "\n";
continue;
} elseif ( preg_match( '/<(!--|pre|script|style|svg)/i', $line ) ) {
$has_french = false;
$fixed_html .= $line . "\n";
continue;
}
if ( $has_french ) {
$count = null;
$line = preg_replace_callback( $pattern, array( __CLASS__, 'replace_second_match' ), $line, $limit = -1, $count );
if ( $count ) {
/*
* Unreplace style="display:none !important" attribute values.
*/
if ( false !== strpos( $line, 'style=' ) ) {
$line = preg_replace_callback( '/(<[^>]*style=["\'])([^"\']* [^"\']*)([\'"][^>]*>)/u',
array( __CLASS__, 'unreplace_second_match' ), $line, $limit = -1, $count );
}
}
}
$fixed_html .= $line . "\n";
}
return rtrim( $fixed_html ); // Remove last newline character.
}
/*
* Replace space with non-breaking space in second element.
*
* Returns first, second, and last elements as a string.
*/
private static function replace_second_match( $match, $search = ' ', $replace = ' ' ) {
$last_num = count( $match ) - 1;
$second_str = str_replace( $search, $replace, $match[ 2 ] );
return $match[ 1 ] . $second_str . $match[ $last_num ];
}
private static function unreplace_second_match( $match ) {
return self::replace_second_match( $match, $search = ' ', $replace = ' ' );
}
}
global $nbsp_french;
$nbsp_french = NbspFrench::get_instance();
}