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<?php |
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|
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// If this file is called directly, abort. |
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if ( ! defined( 'WPINC' ) ) { |
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die; |
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} |
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|
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|
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/** |
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* Load or generate a translation JSON for a registered script. |
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* |
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* Checks whether wpLingua should provide a replacement wp-i18n JSON file for |
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* the given script. If needed, reads the original JS, extracts wp-i18n strings, |
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* builds a translations JSON and writes a cached file that WordPress can use. |
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* |
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* Behavior: |
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* - Skips processing in admin or when the default file is already readable. |
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* - Maps registered scripts that depend on 'wp-i18n' and live under wp-content. |
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* - Returns either the original $file, a generated cached JSON path, or an |
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* empty placeholder file path when no strings are found. |
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* |
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* @param string $file Path to the default translation file provided by WP. |
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* @param string $handle Registered script handle. |
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* @param string $domain Text domain passed by WordPress. |
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* @return string Path to the translation JSON file to use. |
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*/ |
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function wplng_load_script_translation_file( $file, $handle, $domain ) { |
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|
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global $wplng_i18n_scripts; |
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|
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/** |
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* If we are in the admin dashboard |
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* or it's not a translated page |
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* or if the translation file was generate by wp, plugin or theme |
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* Use the default file |
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*/ |
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|
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if ( is_admin() |
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|| wplng_get_language_website_id() === wplng_get_language_current_id() |
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|| empty( $file ) |
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|| is_readable( $file ) |
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) { |
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return $file; |
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} |
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|
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/** |
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* Initialize $wplng_i18n_scripts if not already initialized |
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*/ |
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|
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if ( $wplng_i18n_scripts === null ) { |
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|
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$wp_scripts = wp_scripts(); |
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|
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if ( ! $wp_scripts instanceof WP_Scripts ) { |
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return $file; |
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} |
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|
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$wplng_i18n_scripts = array(); |
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|
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foreach ( $wp_scripts->registered as $handle_temp => $script_object ) { |
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|
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if ( in_array( 'wp-i18n', (array) $script_object->deps, true ) |
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&& wplng_str_contains( $script_object->src, '/wp-content/' ) |
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) { |
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|
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$wplng_i18n_scripts[ $handle_temp ] = array( |
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'handle' => $script_object->handle, |
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'textdomain' => $script_object->textdomain, |
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'src' => $script_object->src, |
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); |
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|
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} |
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} |
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} |
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|
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/** |
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* If we can not associate the current script to a knowed script |
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* (We can not know the script JS file, return) |
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*/ |
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|
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if ( empty( $wplng_i18n_scripts ) || empty( $wplng_i18n_scripts[ $handle ] ) ) { |
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return $file; |
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} |
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|
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/** |
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* Check if the replacement translation JSON was already generated by wpLingua |
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*/ |
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|
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$file_nomalized = wp_normalize_path( $file ); |
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$dir_cache_script = '/script-i18n'; |
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|
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$file_cache_relative = str_replace( |
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wp_normalize_path( WP_CONTENT_DIR ), |
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'', |
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$file_nomalized |
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); |
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|
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if ( $file_nomalized === $file_cache_relative ) { |
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return $file; |
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} |
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|
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$file_cache_absolute = WPLNG_CACHE_DIR . $dir_cache_script . $file_cache_relative; |
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|
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if ( is_readable( $file_cache_absolute ) ) { |
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return $file_cache_absolute; |
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} |
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|
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/** |
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* Get the original script path and content |
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*/ |
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|
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$script_path = str_replace( |
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content_url(), |
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WP_CONTENT_DIR, |
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$wplng_i18n_scripts[ $handle ]['src'] |
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); |
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|
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$script_path = wp_normalize_path( $script_path ); |
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|
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if ( ! is_readable( $script_path ) ) { |
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return $file; |
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} |
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|
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// Skip files larger than 2MB to avoid memory issues |
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if ( filesize( $script_path ) > 2 * 1024 * 1024 ) { |
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return $file; |
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} |
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|
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$script_content = file_get_contents( $script_path ); |
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|
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/** |
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* Get texts in script |
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*/ |
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|
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$texts = wplng_i18n_script_extract_strings( $script_content ); |
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|
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$texts_is_empty = true; |
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|
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foreach ( $texts as $texts_by_extraction_methode ) { |
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if ( ! empty( $texts_by_extraction_methode ) ) { |
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$texts_is_empty = false; |
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break; |
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} |
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} |
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|
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if ( $texts_is_empty ) { |
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|
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wplng_put_cache_file( |
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'/script-i18n' . $file_cache_relative, |
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'' |
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); |
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|
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return $file; |
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} |
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|
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/** |
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* Make the translations JSON |
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*/ |
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|
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$json_content = wplng_i18n_script_generate_json( |
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$texts, |
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$domain |
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); |
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|
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// If JSON generation failed, write empty sentinel and return original file |
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if ( '' === $json_content ) { |
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wplng_put_cache_file( |
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'/script-i18n' . $file_cache_relative, |
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'' |
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); |
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return $file; |
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} |
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|
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/** |
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* Generate the wpLingua cached JSON file |
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*/ |
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|
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$file_writing_result = wplng_put_cache_file( |
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'/script-i18n' . $file_cache_relative, |
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$json_content |
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); |
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|
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// Return the generated file if writing was successful |
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if ( $file_writing_result !== false ) { |
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return $file_cache_absolute; |
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} |
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|
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return $file; |
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} |
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|
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|
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/** |
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* Extract translatable strings from a JavaScript script. |
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* |
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* Scans minified WP JS for wp-i18n call patterns used in builds like: |
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* (0,x.__)("text") |
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* (0,x._x)("text","context") |
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* (0,x._n)("singular","plural",count) |
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* (0,x._nx)("singular","plural",count,"context") |
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* |
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* The function handles both single and double quoted strings, escaped characters, |
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* optional domain arguments and returns an associative array grouping extracted |
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* items by function name ('__', '_x', '_n', '_nx'). |
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* |
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* @param string $script JavaScript source code to scan. |
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* @return array { |
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* Associative array with keys: |
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* '__' => array of [ 'text' => string, 'domain' => ?string ], |
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* '_x' => array of [ 'text' => string, 'context' => string, 'domain' => ?string ], |
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* '_n' => array of [ 'singular' => string, 'plural' => string, 'domain' => ?string ], |
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* '_nx' => array of [ 'singular' => string, 'plural' => string, 'context' => string, 'domain' => ?string ], |
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* } |
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*/ |
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function wplng_i18n_script_extract_strings( $script ) { |
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|
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$results = array( |
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'__' => array(), |
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'_x' => array(), |
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'_n' => array(), |
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'_nx' => array(), |
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); |
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|
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// In WordPress minified scripts, calls look like: |
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// (0,r.__)("text") or (0,t._x)("text","context") |
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// where r/t/e/n are aliases for wp.i18n |
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|
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$patterns = array( |
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// (0,X.__)("text") or (0,X.__)('text') with optional domain |
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'__' => '/\(0,[a-zA-Z_$][a-zA-Z0-9_$]*\.__\)\s*\(\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\1)["\'])*)\1(?:\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\3)["\'])*)\3)?\s*\)/u', |
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|
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// (0,X._x)("text","context") or with single quotes, optional domain |
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'_x' => '/\(0,[a-zA-Z_$][a-zA-Z0-9_$]*\._x\)\s*\(\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\1)["\'])*)\1\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\3)["\'])*)\3(?:\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\5)["\'])*)\5)?\s*\)/u', |
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|
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// (0,X._n)("singular","plural",number) with optional domain |
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'_n' => '/\(0,[a-zA-Z_$][a-zA-Z0-9_$]*\._n\)\s*\(\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\1)["\'])*)\1\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\3)["\'])*)\3\s*,\s*[^,)]+(?:\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\5)["\'])*)\5)?\s*\)/u', |
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|
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// (0,X._nx)("singular","plural",number,"context") with optional domain |
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'_nx' => '/\(0,[a-zA-Z_$][a-zA-Z0-9_$]*\._nx\)\s*\(\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\1)["\'])*)\1\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\3)["\'])*)\3\s*,\s*[^,]+\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\5)["\'])*)\5(?:\s*,\s*(["\'])((?:[^"\'\\\\]|\\\\.|(?!\7)["\'])*)\7)?\s*\)/u', |
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); |
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|
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// Extraction for __() |
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if ( preg_match_all( $patterns['__'], $script, $matches, PREG_SET_ORDER ) ) { |
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foreach ( $matches as $match ) { |
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$text = wplng_unescape_js_string( $match[2] ); |
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if ( ! empty( $text ) ) { |
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$results['__'][] = array( |
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'text' => $text, |
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'domain' => isset( $match[4] ) && $match[4] !== '' ? wplng_unescape_js_string( $match[4] ) : null, |
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); |
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} |
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} |
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} |
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|
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// Extraction for _x() |
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if ( preg_match_all( $patterns['_x'], $script, $matches, PREG_SET_ORDER ) ) { |
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foreach ( $matches as $match ) { |
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$text = wplng_unescape_js_string( $match[2] ); |
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if ( ! empty( $text ) ) { |
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$results['_x'][] = array( |
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'text' => $text, |
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'context' => wplng_unescape_js_string( $match[4] ), |
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'domain' => isset( $match[6] ) && $match[6] !== '' ? wplng_unescape_js_string( $match[6] ) : null, |
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); |
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} |
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} |
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} |
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|
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// Extraction for _n() |
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if ( preg_match_all( $patterns['_n'], $script, $matches, PREG_SET_ORDER ) ) { |
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foreach ( $matches as $match ) { |
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$singular = wplng_unescape_js_string( $match[2] ); |
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if ( ! empty( $singular ) ) { |
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$results['_n'][] = array( |
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'singular' => $singular, |
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'plural' => wplng_unescape_js_string( $match[4] ), |
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'domain' => isset( $match[6] ) && $match[6] !== '' ? wplng_unescape_js_string( $match[6] ) : null, |
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); |
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} |
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} |
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} |
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|
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// Extraction for _nx() |
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if ( preg_match_all( $patterns['_nx'], $script, $matches, PREG_SET_ORDER ) ) { |
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foreach ( $matches as $match ) { |
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$singular = wplng_unescape_js_string( $match[2] ); |
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if ( ! empty( $singular ) ) { |
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$results['_nx'][] = array( |
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'singular' => $singular, |
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'plural' => wplng_unescape_js_string( $match[4] ), |
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'context' => wplng_unescape_js_string( $match[6] ), |
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'domain' => isset( $match[8] ) && $match[8] !== '' ? wplng_unescape_js_string( $match[8] ) : null, |
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); |
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} |
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} |
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} |
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|
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return $results; |
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} |
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|
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|
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/** |
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* Generates a WordPress wp-i18n compatible translation JSON |
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* |
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* @param array $texts The texts extracted by wplng_i18n_script_extract_strings() |
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* @param string $domain The text domain |
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* @param string $locale The locale (e.g., 'fr_FR') |
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* @param string $script_path Path to the JS script (for reference) |
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* @return string Encoded JSON |
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*/ |
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function wplng_i18n_script_generate_json( $texts, $domain = 'messages' ) { |
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|
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$locale = get_locale(); |
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|
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// Determine the plural form based on locale |
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$plural_forms = wplng_get_language_plural_forms( $locale ); |
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|
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// Build the messages array |
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$messages = array( |
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'' => array( |
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'domain' => $domain, |
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'plural-forms' => $plural_forms, |
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'lang' => str_replace( '_', '-', $locale ), |
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), |
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); |
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|
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// Add __() translations |
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foreach ( $texts['__'] as $item ) { |
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$key = $item['text']; |
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$text_domain = ! empty( $item['domain'] ) ? $item['domain'] : $domain; |
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// Value = array with the translation |
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$messages[ $key ] = array( __( $item['text'], $text_domain ) ); |
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} |
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|
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// Add _x() translations with context |
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foreach ( $texts['_x'] as $item ) { |
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// Key with context: "text\u0004context" |
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$key = $item['text'] . "\x04" . $item['context']; |
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$text_domain = ! empty( $item['domain'] ) ? $item['domain'] : $domain; |
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$messages[ $key ] = array( _x( $item['text'], $item['context'], $text_domain ) ); |
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} |
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|
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// Add _n() translations (plurals) |
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foreach ( $texts['_n'] as $item ) { |
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$key = $item['singular']; |
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$text_domain = ! empty( $item['domain'] ) ? $item['domain'] : $domain; |
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// Array with [translated singular, translated plural] |
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$messages[ $key ] = array( |
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__( $item['singular'], $text_domain ), |
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__( $item['plural'], $text_domain ), |
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); |
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} |
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|
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// Add _nx() translations (plurals with context) |
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foreach ( $texts['_nx'] as $item ) { |
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$key = $item['singular'] . "\x04" . $item['context']; |
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$text_domain = ! empty( $item['domain'] ) ? $item['domain'] : $domain; |
| 357 |
$messages[ $key ] = array( |
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_x( $item['singular'], $item['context'], $text_domain ), |
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_x( $item['plural'], $item['context'], $text_domain ), |
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); |
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} |
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|
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// Build the complete structure |
| 364 |
$json_data = array( |
| 365 |
'translation-revision-date' => gmdate( 'Y-m-d H:i:s+0000' ), |
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'generator' => 'wpLingua', |
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'domain' => $domain, |
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'locale_data' => array( |
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'messages' => $messages, |
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), |
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); |
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|
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$encoded = wp_json_encode( $json_data, JSON_UNESCAPED_UNICODE ); |
| 374 |
|
| 375 |
if ( false === $encoded ) { |
| 376 |
return ''; |
| 377 |
} |
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|
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return $encoded; |
| 380 |
} |
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|
