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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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* wpLingua Parser : Get texts in a JS script |
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* |
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* @param string $js |
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* @return array Texts |
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*/ |
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function wplng_parse_js( $js ) { |
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|
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$js = trim( $js ); |
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|
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// Check if $JS is empty or is wp emoji script |
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if ( '' === $js |
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|| wplng_str_contains( $js, '_wpemojiSettings' ) |
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) { |
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return array(); |
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} |
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|
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$texts = array_merge( |
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wplng_parse_js_json_in_var( $js ), |
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wplng_parse_js_json_encoded_as_url( $js ), |
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wplng_parse_js_json_in_function_call( $js ), |
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); |
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|
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if ( wplng_str_is_script_i18n( $js ) ) { |
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$texts = array_merge( |
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$texts, |
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wplng_parse_js_json_in_i18n_script( $js ) |
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); |
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} |
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|
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return $texts; |
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} |
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|
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|
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/** |
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* Parse JSON contained in 'var', 'let' or 'window._' |
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* |
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* @param string $js |
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* @return array Texts |
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*/ |
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function wplng_parse_js_json_in_var( $js ) { |
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|
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$texts = array(); |
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$json = array(); |
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|
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preg_match_all( |
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'#(var\s|let\s|window\._)([A-Za-z0-9_]+)\s?=\s?(\{(?:[^{}"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?3))*\}|\[(?:[^\[\]"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?3))*\])\s*;#Us', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[2] ) && is_array( $json[2] ) ) { |
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foreach ( $json[2] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[3][ $key ] ) ) { |
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continue; |
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} |
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|
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$var_json = trim( $json[3][ $key ] ); |
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|
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$texts = array_merge( |
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$texts, |
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wplng_parse_json( |
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$var_json, |
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array( $var_name ) |
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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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return $texts; |
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} |
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|
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|
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/** |
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* Parse JSON in i18n script |
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* |
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* You can use wplng_parse_js_json_in_i18n_script( $js ) |
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* to check if the string is a i18n script |
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* |
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* @param string $js |
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* @return array Texts |
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*/ |
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function wplng_parse_js_json_in_i18n_script( $js ) { |
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|
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$texts = array(); |
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$json = array(); |
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|
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preg_match_all( |
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'#\(\s?["\'](.*)["\'],\s?(.*)\s?\);#Ui', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[1] ) && is_array( $json[1] ) ) { |
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foreach ( $json[1] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[2][ $key ] ) ) { |
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continue; |
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} |
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|
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$var_json = trim( $json[2][ $key ] ); |
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|
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$texts = array_merge( |
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$texts, |
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wplng_parse_json( |
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$var_json, |
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array( 'i18n_script', $var_name ) |
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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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return $texts; |
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} |
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|
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|
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/** |
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* Parse JSON encoded as URL |
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* |
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* @param string $js |
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* @return array Texts |
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*/ |
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function wplng_parse_js_json_encoded_as_url( $js ) { |
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|
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$texts = array(); |
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$json = array(); |
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|
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preg_match_all( |
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'#(var\s|let\s|window\._)([A-Za-z0-9_]+)\s?=\s?JSON\.parse\(\sdecodeURIComponent\(\s\'(.*)\'\s\)\s\)#Ui', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[2] ) && is_array( $json[2] ) ) { |
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foreach ( $json[2] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[3][ $key ] ) ) { |
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continue; |
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} |
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|
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$encoded_json = trim( $json[3][ $key ] ); |
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$var_json = urldecode( $encoded_json ); |
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|
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$texts = array_merge( |
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$texts, |
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wplng_parse_json( |
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$var_json, |
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array( 'encoded_as_url', $var_name ) |
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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 $texts; |
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} |
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|
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|
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/** |
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* Parse JSON passed as argument to function calls like jQuery.datepicker.setDefaults({...}) |
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* |
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* @param string $js |
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* @return array Texts |
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*/ |
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function wplng_parse_js_json_in_function_call( $js ) { |
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|
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$texts = array(); |
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$json = array(); |
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|
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// Whitelist of function calls that contain translatable JSON |
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$allowed_functions = wplng_data_json_in_js_functions(); |
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|
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if ( empty( $allowed_functions ) ) { |
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return array(); |
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} |
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|
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preg_match_all( |
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'#([a-zA-Z_$][a-zA-Z0-9_$]*(?:\.[a-zA-Z_$][a-zA-Z0-9_$]*)+)\s*\(\s*(\{(?:[^{}"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?2))*\})\s*\)#Us', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[1] ) && is_array( $json[1] ) ) { |
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foreach ( $json[1] as $key => $func_name ) { |
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|
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$func_name = trim( $func_name ); |
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|
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// Skip if not in whitelist |
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if ( ! in_array( $func_name, $allowed_functions, true ) ) { |
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continue; |
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} |
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|
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if ( empty( $json[2][ $key ] ) ) { |
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continue; |
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} |
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|
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$var_json = trim( $json[2][ $key ] ); |
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|
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$texts = array_merge( |
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$texts, |
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wplng_parse_json( |
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$var_json, |
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array( $func_name ) |
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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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return $texts; |
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} |
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|
