101 lines
3.5 KiB
PHP
101 lines
3.5 KiB
PHP
<?php // phpcs:disable WordPress.Files.FileName.InvalidClassFileName
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/**
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* Loads text domain of current or default language for localization.
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*
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* @filesource
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* @package footnotes
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* @since 1.5.0
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* @date 14.09.14 17:47
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*
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* @since 2.0.0 Bugfix: Localization: correct function call apply_filters() with all required arguments after PHP 7.1 promoted warning to error, thanks to @matkus2 bug report and code contribution.
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* @since 2.1.6 Bugfix: Localization: conform to WordPress plugin language file name scheme, thanks to @nikelaos bug report.
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*/
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/**
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* Loads text domain of current or default language for localization.
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*
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* @since 1.5.0
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*/
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class MCI_Footnotes_Language {
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/**
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* Register WordPress Hook.
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*
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* @since 1.5.0
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*/
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public static function register_hooks() {
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add_action( 'plugins_loaded', array( 'MCI_Footnotes_Language', 'load_text_domain' ) );
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}
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/**
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* Loads the text domain for current WordPress language if exists.
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* Otherwise fallback "en_GB" will be loaded.
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*
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* @since 1.5.0
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*
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*
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* - Bugfix: Correct function call apply_filters() with all required arguments after PHP 7.1 promoted warning to error, thanks to @matkus2 bug report and code contribution.
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*
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* @since 2.0.0
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* @date 2020-10-26T1609+0100
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*
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* @contributor @matkus2
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* @link https://wordpress.org/support/topic/error-missing-parameter-if-using-php-7-1-or-later/
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*
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* Add 3rd (empty) argument in apply_filters() to prevent PHP from throwing an error.
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* “Fatal error: Uncaught ArgumentCountError: Too few arguments to function apply_filters()”
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*
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* Yet get_locale() is defined w/o parameters in wp-includes/l10n.php:30, and
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* apply_filters() is defined as apply_filters( $tag, $value ) in wp-includes/plugin.php:181.
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* @link https://developer.wordpress.org/reference/functions/apply_filters/
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*
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* But apply_filters() is defined with a 3rd parameter (and w/o the first one) in
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* wp-includes/class-wp-hook.php:264, as public function apply_filters( $value, $args ).
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*
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* Taking it all together, probably the full function definition would be
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* public function apply_filters( $tag, $value, $args ).
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* In the case of get_locale(), $args is empty.
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*
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* The bug was lurking in WP. PHP 7.1 promoted the warning to an error.
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* @link https://www.php.net/manual/en/migration71.incompatible.php
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* @link https://www.php.net/manual/en/migration71.incompatible.php#migration71.incompatible.too-few-arguments-exception
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*/
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public static function load_text_domain() {
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// If language file with localization exists.
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if ( self::load( apply_filters( 'plugin_locale', get_locale(), '' ) ) ) {
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return;
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}
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// Else fall back to British English.
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self::load( 'en_GB' );
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}
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/**
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* Loads a specific text domain.
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*
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* @since 1.5.1
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* @param string $p_str_language_code Language Code to load a specific text domain.
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* @return bool
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*
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*
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* - Bugfix: Localization: conform to WordPress plugin language file name scheme, thanks to @nikelaos bug report.
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*
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* @since 2.1.6
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* @date 2020-12-08T1931+0100
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*
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* @reporter @nikelaos
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* @link https://wordpress.org/support/topic/more-feature-ideas/
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*
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* That is done by using load_plugin_textdomain().
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* “The .mo file should be named based on the text domain with a dash, and then the locale exactly.”
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* @see wp-includes/l10n.php:857
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*/
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private static function load( $p_str_language_code ) {
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return load_plugin_textdomain(
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MCI_Footnotes_Config::C_STR_PLUGIN_NAME,
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false,
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MCI_Footnotes_Config::C_STR_PLUGIN_NAME . '/languages'
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);
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}
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}
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