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Code Editor : locale.inc
<?php /** * @file * Administration functions for locale.module. */ /** * The language is determined using a URL language indicator: * path prefix or domain according to the configuration. */ define('LOCALE_LANGUAGE_NEGOTIATION_URL', 'locale-url'); /** * The language is set based on the browser language settings. */ define('LOCALE_LANGUAGE_NEGOTIATION_BROWSER', 'locale-browser'); /** * The language is determined using the current interface language. */ define('LOCALE_LANGUAGE_NEGOTIATION_INTERFACE', 'locale-interface'); /** * If no URL language is available language is determined using an already * detected one. */ define('LOCALE_LANGUAGE_NEGOTIATION_URL_FALLBACK', 'locale-url-fallback'); /** * The language is set based on the user language settings. */ define('LOCALE_LANGUAGE_NEGOTIATION_USER', 'locale-user'); /** * The language is set based on the request/session parameters. */ define('LOCALE_LANGUAGE_NEGOTIATION_SESSION', 'locale-session'); /** * Regular expression pattern used to localize JavaScript strings. */ define('LOCALE_JS_STRING', '(?:(?:\'(?:\\\\\'|[^\'])*\'|"(?:\\\\"|[^"])*")(?:\s*\+\s*)?)+'); /** * Regular expression pattern used to match simple JS object literal. * * This pattern matches a basic JS object, but will fail on an object with * nested objects. Used in JS file parsing for string arg processing. */ define('LOCALE_JS_OBJECT', '\{.*?\}'); /** * Regular expression to match an object containing a key 'context'. * * Pattern to match a JS object containing a 'context key' with a string value, * which is captured. Will fail if there are nested objects. */ define('LOCALE_JS_OBJECT_CONTEXT', ' \{ # match object literal start .*? # match anything, non-greedy (?: # match a form of "context" \'context\' | "context" | context ) \s*:\s* # match key-value separator ":" (' . LOCALE_JS_STRING . ') # match context string .*? # match anything, non-greedy \} # match end of object literal '); /** * Translation import mode overwriting all existing translations * if new translated version available. */ define('LOCALE_IMPORT_OVERWRITE', 0); /** * Translation import mode keeping existing translations and only * inserting new strings. */ define('LOCALE_IMPORT_KEEP', 1); /** * URL language negotiation: use the path prefix as URL language * indicator. */ define('LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX', 0); /** * URL language negotiation: use the domain as URL language * indicator. */ define('LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN', 1); /** * @defgroup locale-languages-negotiation Language negotiation options * @{ * Functions for language negotiation. * * There are functions that provide the ability to identify the * language. This behavior can be controlled by various options. */ /** * Identifies the language from the current interface language. * * @return * The current interface language code. */ function locale_language_from_interface() { global $language; return isset($language->language) ? $language->language : FALSE; } /** * Identify language from the Accept-language HTTP header we got. * * We perform browser accept-language parsing only if page cache is disabled, * otherwise we would cache a user-specific preference. * * @param $languages * An array of language objects for enabled languages ordered by weight. * * @return * A valid language code on success, FALSE otherwise. */ function locale_language_from_browser($languages) { if (empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) { return FALSE; } // The Accept-Language header contains information about the language // preferences configured in the user's browser / operating system. // RFC 2616 (section 14.4) defines the Accept-Language header as follows: // Accept-Language = "Accept-Language" ":" // 1#( language-range [ ";" "q" "=" qvalue ] ) // language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" ) // Samples: "hu, en-us;q=0.66, en;q=0.33", "hu,en-us;q=0.5" $browser_langcodes = array(); if (preg_match_all('@(?<=[, ]|^)([a-zA-Z-]+|\*)(?:;q=([0-9.]+))?(?:$|\s*,\s*)@', trim($_SERVER['HTTP_ACCEPT_LANGUAGE']), $matches, PREG_SET_ORDER)) { foreach ($matches as $match) { // We can safely use strtolower() here, tags are ASCII. // RFC2616 mandates that the decimal part is no more than three digits, // so we multiply the qvalue by 1000 to avoid floating point comparisons. $langcode = strtolower($match[1]); $qvalue = isset($match[2]) ? (float) $match[2] : 1; $browser_langcodes[$langcode] = (int) ($qvalue * 1000); } } // We should take pristine values from the HTTP headers, but Internet Explorer // from version 7 sends only specific language tags (eg. fr-CA) without the // corresponding generic tag (fr) unless explicitly configured. In that case, // we assume that the lowest value of the specific tags is the value of the // generic language to be as close to the HTTP 1.1 spec as possible. // See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4 and // http://blogs.msdn.com/b/ie/archive/2006/10/17/accept-language-header-for-internet-explorer-7.aspx asort($browser_langcodes); foreach ($browser_langcodes as $langcode => $qvalue) { $generic_tag = strtok($langcode, '-'); if (!isset($browser_langcodes[$generic_tag])) { $browser_langcodes[$generic_tag] = $qvalue; } } // Find the enabled language with the greatest qvalue, following the rules // of RFC 2616 (section 14.4). If several languages have the same qvalue, // prefer the one with the greatest weight. $best_match_langcode = FALSE; $max_qvalue = 0; foreach ($languages as $langcode => $language) { // Language tags are case insensitive (RFC2616, sec 3.10). $langcode = strtolower($langcode); // If nothing matches below, the default qvalue is the one of the wildcard // language, if set, or is 0 (which will never match). $qvalue = isset($browser_langcodes['*']) ? $browser_langcodes['*'] : 0; // Find the longest possible prefix of the browser-supplied language // ('the language-range') that matches this site language ('the language tag'). $prefix = $langcode; do { if (isset($browser_langcodes[$prefix])) { $qvalue = $browser_langcodes[$prefix]; break; } } while ($prefix = substr($prefix, 0, strrpos($prefix, '-'))); // Find the best match. if ($qvalue > $max_qvalue) { $best_match_langcode = $language->language; $max_qvalue = $qvalue; } } return $best_match_langcode; } /** * Identify language from the user preferences. * * @param $languages * An array of valid language objects. * * @return * A valid language code on success, FALSE otherwise. */ function locale_language_from_user($languages) { // User preference (only for logged users). global $user; if ($user->uid) { return $user->language; } // No language preference from the user. return FALSE; } /** * Identify language from a request/session parameter. * * @param $languages * An array of valid language objects. * * @return * A valid language code on success, FALSE otherwise. */ function locale_language_from_session($languages) { $param = variable_get('locale_language_negotiation_session_param', 'language'); // Request parameter: we need to update the session parameter only if we have // an authenticated user. if (isset($_GET[$param]) && isset($languages[$langcode = $_GET[$param]])) { global $user; if ($user->uid) { $_SESSION[$param] = $langcode; } return $langcode; } // Session parameter. if (isset($_SESSION[$param])) { return $_SESSION[$param]; } return FALSE; } /** * Identify language via URL prefix or domain. * * @param $languages * An array of valid language objects. * * @return * A valid language code on success, FALSE otherwise. */ function locale_language_from_url($languages) { $language_url = FALSE; if (!language_negotiation_get_any(LOCALE_LANGUAGE_NEGOTIATION_URL)) { return $language_url; } switch (variable_get('locale_language_negotiation_url_part', LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX)) { case LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX: // $_GET['q'] might not be available at this time, because // path initialization runs after the language bootstrap phase. list($language, $_GET['q']) = language_url_split_prefix(isset($_GET['q']) ? $_GET['q'] : NULL, $languages); if ($language !== FALSE) { $language_url = $language->language; } break; case LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN: // Get only the host, not the port. $http_host= $_SERVER['HTTP_HOST']; if (strpos($http_host, ':') !== FALSE) { $http_host_tmp = explode(':', $http_host); $http_host = current($http_host_tmp); } foreach ($languages as $language) { // Skip check if the language doesn't have a domain. if ($language->domain) { // Only compare the domains not the protocols or ports. // Remove protocol and add http:// so parse_url works $host = 'http://' . str_replace(array('http://', 'https://'), '', $language->domain); $host = parse_url($host, PHP_URL_HOST); if ($http_host == $host) { $language_url = $language->language; break; } } } break; } return $language_url; } /** * Determines the language to be assigned to URLs when none is detected. * * The language negotiation process has a fallback chain that ends with the * default language provider. Each built-in language type has a separate * initialization: * - Interface language, which is the only configurable one, always gets a valid * value. If no request-specific language is detected, the default language * will be used. * - Content language merely inherits the interface language by default. * - URL language is detected from the requested URL and will be used to rewrite * URLs appearing in the page being rendered. If no language can be detected, * there are two possibilities: * - If the default language has no configured path prefix or domain, then the * default language is used. This guarantees that (missing) URL prefixes are * preserved when navigating through the site. * - If the default language has a configured path prefix or domain, a * requested URL having an empty prefix or domain is an anomaly that must be * fixed. This is done by introducing a prefix or domain in the rendered * page matching the detected interface language. * * @param $languages * (optional) An array of valid language objects. This is passed by * language_provider_invoke() to every language provider callback, but it is * not actually needed here. Defaults to NULL. * @param $language_type * (optional) The language type to fall back to. Defaults to the interface * language. * * @return * A valid language code. */ function locale_language_url_fallback($language = NULL, $language_type = LANGUAGE_TYPE_INTERFACE) { $default = language_default(); $prefix = (variable_get('locale_language_negotiation_url_part', LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX) == LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX); // If the default language is not configured to convey language information, // a missing URL language information indicates that URL language should be // the default one, otherwise we fall back to an already detected language. if (($prefix && empty($default->prefix)) || (!$prefix && empty($default->domain))) { return $default->language; } else { return $GLOBALS[$language_type]->language; } } /** * Return the URL language switcher block. Translation links may be provided by * other modules. */ function locale_language_switcher_url($type, $path) { $languages = language_list('enabled'); $links = array(); foreach ($languages[1] as $language) { $links[$language->language] = array( 'href' => $path, 'title' => $language->native, 'language' => $language, 'attributes' => array('class' => array('language-link')), ); } return $links; } /** * Return the session language switcher block. */ function locale_language_switcher_session($type, $path) { drupal_add_css(drupal_get_path('module', 'locale') . '/locale.css'); $param = variable_get('locale_language_negotiation_session_param', 'language'); $language_query = isset($_SESSION[$param]) ? $_SESSION[$param] : $GLOBALS[$type]->language; $languages = language_list('enabled'); $links = array(); $query = $_GET; unset($query['q']); foreach ($languages[1] as $language) { $langcode = $language->language; $links[$langcode] = array( 'href' => $path, 'title' => $language->native, 'attributes' => array('class' => array('language-link')), 'query' => $query, ); if ($language_query != $langcode) { $links[$langcode]['query'][$param] = $langcode; } else { $links[$langcode]['attributes']['class'][] = 'session-active'; } } return $links; } /** * Rewrite URLs for the URL language provider. */ function locale_language_url_rewrite_url(&$path, &$options) { static $drupal_static_fast; if (!isset($drupal_static_fast)) { $drupal_static_fast['languages'] = &drupal_static(__FUNCTION__); } $languages = &$drupal_static_fast['languages']; if (!isset($languages)) { $languages = language_list('enabled'); $languages = array_flip(array_keys($languages[1])); } // Language can be passed as an option, or we go for current URL language. if (!isset($options['language'])) { global $language_url; $options['language'] = $language_url; } // We allow only enabled languages here. elseif (!isset($languages[$options['language']->language])) { unset($options['language']); return; } if (isset($options['language'])) { switch (variable_get('locale_language_negotiation_url_part', LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX)) { case LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN: if ($options['language']->domain) { // Ask for an absolute URL with our modified base_url. global $is_https; $url_scheme = ($is_https) ? 'https://' : 'http://'; $options['absolute'] = TRUE; // Take the domain without ports or protocols so we can apply the // protocol needed. The setting might include a protocol. // This is changed in Drupal 8 but we need to keep backwards // compatibility for Drupal 7. $host = 'http://' . str_replace(array('http://', 'https://'), '', $options['language']->domain); $host = parse_url($host, PHP_URL_HOST); // Apply the appropriate protocol to the URL. $options['base_url'] = $url_scheme . $host; if (isset($options['https']) && variable_get('https', FALSE)) { if ($options['https'] === TRUE) { $options['base_url'] = str_replace('http://', 'https://', $options['base_url']); } elseif ($options['https'] === FALSE) { $options['base_url'] = str_replace('https://', 'http://', $options['base_url']); } } } break; case LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX: if (!empty($options['language']->prefix)) { $options['prefix'] = $options['language']->prefix . '/'; } break; } } } /** * Rewrite URLs for the Session language provider. */ function locale_language_url_rewrite_session(&$path, &$options) { static $query_rewrite, $query_param, $query_value; // The following values are not supposed to change during a single page // request processing. if (!isset($query_rewrite)) { global $user; if (!$user->uid) { $languages = language_list('enabled'); $languages = $languages[1]; $query_param = check_plain(variable_get('locale_language_negotiation_session_param', 'language')); $query_value = isset($_GET[$query_param]) ? check_plain($_GET[$query_param]) : NULL; $query_rewrite = isset($languages[$query_value]) && language_negotiation_get_any(LOCALE_LANGUAGE_NEGOTIATION_SESSION); } else { $query_rewrite = FALSE; } } // If the user is anonymous, the user language provider is enabled, and the // corresponding option has been set, we must preserve any explicit user // language preference even with cookies disabled. if ($query_rewrite) { if (is_string($options['query'])) { $options['query'] = drupal_get_query_array($options['query']); } if (!isset($options['query'][$query_param])) { $options['query'][$query_param] = $query_value; } } } /** * @} End of "locale-languages-negotiation" */ /** * Check that a string is safe to be added or imported as a translation. * * This test can be used to detect possibly bad translation strings. It should * not have any false positives. But it is only a test, not a transformation, * as it destroys valid HTML. We cannot reliably filter translation strings * on import because some strings are irreversibly corrupted. For example, * a & in the translation would get encoded to &amp; by filter_xss() * before being put in the database, and thus would be displayed incorrectly. * * The allowed tag list is like filter_xss_admin(), but omitting div and img as * not needed for translation and likely to cause layout issues (div) or a * possible attack vector (img). */ function locale_string_is_safe($string) { return decode_entities($string) == decode_entities(filter_xss($string, array('a', 'abbr', 'acronym', 'address', 'b', 'bdo', 'big', 'blockquote', 'br', 'caption', 'cite', 'code', 'col', 'colgroup', 'dd', 'del', 'dfn', 'dl', 'dt', 'em', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'ins', 'kbd', 'li', 'ol', 'p', 'pre', 'q', 'samp', 'small', 'span', 'strong', 'sub', 'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'tr', 'tt', 'ul', 'var'))); } /** * @defgroup locale-api-add Language addition API * @{ * Add a language. * * The language addition API is used to create languages and store them. */ /** * API function to add a language. * * @param $langcode * Language code. * @param $name * English name of the language * @param $native * Native name of the language * @param $direction * LANGUAGE_LTR or LANGUAGE_RTL * @param $domain * Optional custom domain name with protocol, without * trailing slash (eg. http://de.example.com). * @param $prefix * Optional path prefix for the language. Defaults to the * language code if omitted. * @param $enabled * Optionally TRUE to enable the language when created or FALSE to disable. * @param $default * Optionally set this language to be the default. */ function locale_add_language($langcode, $name = NULL, $native = NULL, $direction = LANGUAGE_LTR, $domain = '', $prefix = '', $enabled = TRUE, $default = FALSE) { // Default prefix on language code. if (empty($prefix)) { $prefix = $langcode; } // If name was not set, we add a predefined language. if (!isset($name)) { include_once DRUPAL_ROOT . '/includes/iso.inc'; $predefined = _locale_get_predefined_list(); $name = $predefined[$langcode][0]; $native = isset($predefined[$langcode][1]) ? $predefined[$langcode][1] : $predefined[$langcode][0]; $direction = isset($predefined[$langcode][2]) ? $predefined[$langcode][2] : LANGUAGE_LTR; } db_insert('languages') ->fields(array( 'language' => $langcode, 'name' => $name, 'native' => $native, 'direction' => $direction, 'domain' => $domain, 'prefix' => $prefix, 'enabled' => $enabled, )) ->execute(); // Only set it as default if enabled. if ($enabled && $default) { variable_set('language_default', (object) array('language' => $langcode, 'name' => $name, 'native' => $native, 'direction' => $direction, 'enabled' => (int) $enabled, 'plurals' => 0, 'formula' => '', 'domain' => '', 'prefix' => $prefix, 'weight' => 0, 'javascript' => '')); } if ($enabled) { // Increment enabled language count if we are adding an enabled language. variable_set('language_count', variable_get('language_count', 1) + 1); } // Kill the static cache in language_list(). drupal_static_reset('language_list'); // Force JavaScript translation file creation for the newly added language. _locale_invalidate_js($langcode); watchdog('locale', 'The %language language (%code) has been created.', array('%language' => $name, '%code' => $langcode)); module_invoke_all('multilingual_settings_changed'); } /** * @} End of "locale-api-add" */ /** * @defgroup locale-api-import-export Translation import/export API. * @{ * Functions to import and export translations. * * These functions provide the ability to import translations from * external files and to export translations and translation templates. */ /** * Parses Gettext Portable Object file information and inserts into database * * @param $file * Drupal file object corresponding to the PO file to import. * @param $langcode * Language code. * @param $mode * Should existing translations be replaced LOCALE_IMPORT_KEEP or * LOCALE_IMPORT_OVERWRITE. * @param $group * Text group to import PO file into (eg. 'default' for interface * translations). */ function _locale_import_po($file, $langcode, $mode, $group = NULL) { // Try to allocate enough time to parse and import the data. drupal_set_time_limit(240); // Check if we have the language already in the database. if (!db_query("SELECT COUNT(language) FROM {languages} WHERE language = :language", array(':language' => $langcode))->fetchField()) { drupal_set_message(t('The language selected for import is not supported.'), 'error'); return FALSE; } // Get strings from file (returns on failure after a partial import, or on success) $status = _locale_import_read_po('db-store', $file, $mode, $langcode, $group); if ($status === FALSE) { // Error messages are set in _locale_import_read_po(). return FALSE; } // Get status information on import process. list($header_done, $additions, $updates, $deletes, $skips) = _locale_import_one_string('db-report'); if (!$header_done) { drupal_set_message(t('The translation file %filename appears to have a missing or malformed header.', array('%filename' => $file->filename)), 'error'); } // Clear cache and force refresh of JavaScript translations. _locale_invalidate_js($langcode); cache_clear_all('locale:', 'cache', TRUE); // Rebuild the menu, strings may have changed. menu_rebuild(); drupal_set_message(t('The translation was successfully imported. There are %number newly created translated strings, %update strings were updated and %delete strings were removed.', array('%number' => $additions, '%update' => $updates, '%delete' => $deletes))); watchdog('locale', 'Imported %file into %locale: %number new strings added, %update updated and %delete removed.', array('%file' => $file->filename, '%locale' => $langcode, '%number' => $additions, '%update' => $updates, '%delete' => $deletes)); if ($skips) { $skip_message = format_plural($skips, 'One translation string was skipped because it contains disallowed HTML.', '@count translation strings were skipped because they contain disallowed HTML.'); drupal_set_message($skip_message); watchdog('locale', '@count disallowed HTML string(s) in %file', array('@count' => $skips, '%file' => $file->uri), WATCHDOG_WARNING); } return TRUE; } /** * Parses Gettext Portable Object file into an array * * @param $op * Storage operation type: db-store or mem-store. * @param $file * Drupal file object corresponding to the PO file to import. * @param $mode * Should existing translations be replaced LOCALE_IMPORT_KEEP or * LOCALE_IMPORT_OVERWRITE. * @param $lang * Language code. * @param $group * Text group to import PO file into (eg. 'default' for interface * translations). */ function _locale_import_read_po($op, $file, $mode = NULL, $lang = NULL, $group = 'default') { // The file will get closed by PHP on returning from this function. $fd = fopen($file->uri, 'rb'); if (!$fd) { _locale_import_message('The translation import failed, because the file %filename could not be read.', $file); return FALSE; } /* * The parser context. Can be: * - 'COMMENT' (#) * - 'MSGID' (msgid) * - 'MSGID_PLURAL' (msgid_plural) * - 'MSGCTXT' (msgctxt) * - 'MSGSTR' (msgstr or msgstr[]) * - 'MSGSTR_ARR' (msgstr_arg) */ $context = 'COMMENT'; // Current entry being read. $current = array(); // Current plurality for 'msgstr[]'. $plural = 0; // Current line. $lineno = 0; while (!feof($fd)) { // A line should not be longer than 10 * 1024. $line = fgets($fd, 10 * 1024); if ($lineno == 0) { // The first line might come with a UTF-8 BOM, which should be removed. $line = str_replace("\xEF\xBB\xBF", '', $line); } $lineno++; // Trim away the linefeed. $line = trim(strtr($line, array("\\\n" => ""))); if (!strncmp('#', $line, 1)) { // Lines starting with '#' are comments. if ($context == 'COMMENT') { // Already in comment token, insert the comment. $current['#'][] = substr($line, 1); } elseif (($context == 'MSGSTR') || ($context == 'MSGSTR_ARR')) { // We are currently in string token, close it out. _locale_import_one_string($op, $current, $mode, $lang, $file, $group); // Start a new entry for the comment. $current = array(); $current['#'][] = substr($line, 1); $context = 'COMMENT'; } else { // A comment following any other token is a syntax error. _locale_import_message('The translation file %filename contains an error: "msgstr" was expected but not found on line %line.', $file, $lineno); return FALSE; } } elseif (!strncmp('msgid_plural', $line, 12)) { // A plural form for the current message. if ($context != 'MSGID') { // A plural form cannot be added to anything else but the id directly. _locale_import_message('The translation file %filename contains an error: "msgid_plural" was expected but not found on line %line.', $file, $lineno); return FALSE; } // Remove 'msgid_plural' and trim away whitespace. $line = trim(substr($line, 12)); // At this point, $line should now contain only the plural form. $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The plural form must be wrapped in quotes. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } // Append the plural form to the current entry. $current['msgid'] .= "\0" . $quoted; $context = 'MSGID_PLURAL'; } elseif (!strncmp('msgid', $line, 5)) { // Starting a new message. if (($context == 'MSGSTR') || ($context == 'MSGSTR_ARR')) { // We are currently in a message string, close it out. _locale_import_one_string($op, $current, $mode, $lang, $file, $group); // Start a new context for the id. $current = array(); } elseif ($context == 'MSGID') { // We are currently already in the context, meaning we passed an id with no data. _locale_import_message('The translation file %filename contains an error: "msgid" is unexpected on line %line.', $file, $lineno); return FALSE; } // Remove 'msgid' and trim away whitespace. $line = trim(substr($line, 5)); // At this point, $line should now contain only the message id. $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The message id must be wrapped in quotes. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } $current['msgid'] = $quoted; $context = 'MSGID'; } elseif (!strncmp('msgctxt', $line, 7)) { // Starting a new context. if (($context == 'MSGSTR') || ($context == 'MSGSTR_ARR')) { // We are currently in a message, start a new one. _locale_import_one_string($op, $current, $mode, $lang, $file, $group); $current = array(); } elseif (!empty($current['msgctxt'])) { // A context cannot apply to another context. _locale_import_message('The translation file %filename contains an error: "msgctxt" is unexpected on line %line.', $file, $lineno); return FALSE; } // Remove 'msgctxt' and trim away whitespaces. $line = trim(substr($line, 7)); // At this point, $line should now contain the context. $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The context string must be quoted. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } $current['msgctxt'] = $quoted; $context = 'MSGCTXT'; } elseif (!strncmp('msgstr[', $line, 7)) { // A message string for a specific plurality. if (($context != 'MSGID') && ($context != 'MSGCTXT') && ($context != 'MSGID_PLURAL') && ($context != 'MSGSTR_ARR')) { // Message strings must come after msgid, msgxtxt, msgid_plural, or other msgstr[] entries. _locale_import_message('The translation file %filename contains an error: "msgstr[]" is unexpected on line %line.', $file, $lineno); return FALSE; } // Ensure the plurality is terminated. if (strpos($line, ']') === FALSE) { _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } // Extract the plurality. $frombracket = strstr($line, '['); $plural = substr($frombracket, 1, strpos($frombracket, ']') - 1); // Skip to the next whitespace and trim away any further whitespace, bringing $line to the message data. $line = trim(strstr($line, " ")); $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The string must be quoted. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } $current['msgstr'][$plural] = $quoted; $context = 'MSGSTR_ARR'; } elseif (!strncmp("msgstr", $line, 6)) { // A string for the an id or context. if (($context != 'MSGID') && ($context != 'MSGCTXT')) { // Strings are only valid within an id or context scope. _locale_import_message('The translation file %filename contains an error: "msgstr" is unexpected on line %line.', $file, $lineno); return FALSE; } // Remove 'msgstr' and trim away away whitespaces. $line = trim(substr($line, 6)); // At this point, $line should now contain the message. $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The string must be quoted. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } $current['msgstr'] = $quoted; $context = 'MSGSTR'; } elseif ($line != '') { // Anything that is not a token may be a continuation of a previous token. $quoted = _locale_import_parse_quoted($line); if ($quoted === FALSE) { // The string must be quoted. _locale_import_message('The translation file %filename contains a syntax error on line %line.', $file, $lineno); return FALSE; } // Append the string to the current context. if (($context == 'MSGID') || ($context == 'MSGID_PLURAL')) { $current['msgid'] .= $quoted; } elseif ($context == 'MSGCTXT') { $current['msgctxt'] .= $quoted; } elseif ($context == 'MSGSTR') { $current['msgstr'] .= $quoted; } elseif ($context == 'MSGSTR_ARR') { $current['msgstr'][$plural] .= $quoted; } else { // No valid context to append to. _locale_import_message('The translation file %filename contains an error: there is an unexpected string on line %line.', $file, $lineno); return FALSE; } } } // End of PO file, closed out the last entry. if (($context == 'MSGSTR') || ($context == 'MSGSTR_ARR')) { _locale_import_one_string($op, $current, $mode, $lang, $file, $group); } elseif ($context != 'COMMENT') { _locale_import_message('The translation file %filename ended unexpectedly at line %line.', $file, $lineno); return FALSE; } } /** * Sets an error message occurred during locale file parsing. * * @param $message * The message to be translated. * @param $file * Drupal file object corresponding to the PO file to import. * @param $lineno * An optional line number argument. */ function _locale_import_message($message, $file, $lineno = NULL) { $vars = array('%filename' => $file->filename); if (isset($lineno)) { $vars['%line'] = $lineno; } $t = get_t(); drupal_set_message($t($message, $vars), 'error'); } /** * Imports a string into the database * * @param $op * Operation to perform: 'db-store', 'db-report', 'mem-store' or 'mem-report'. * @param $value * Details of the string stored. * @param $mode * Should existing translations be replaced LOCALE_IMPORT_KEEP or * LOCALE_IMPORT_OVERWRITE. * @param $lang * Language to store the string in. * @param $file * Object representation of file being imported, only required when op is * 'db-store'. * @param $group * Text group to import PO file into (eg. 'default' for interface * translations). */ function _locale_import_one_string($op, $value = NULL, $mode = NULL, $lang = NULL, $file = NULL, $group = 'default') { $report = &drupal_static(__FUNCTION__, array('additions' => 0, 'updates' => 0, 'deletes' => 0, 'skips' => 0)); $header_done = &drupal_static(__FUNCTION__ . ':header_done', FALSE); $strings = &drupal_static(__FUNCTION__ . ':strings', array()); switch ($op) { // Return stored strings case 'mem-report': return $strings; // Store string in memory (only supports single strings) case 'mem-store': $strings[isset($value['msgctxt']) ? $value['msgctxt'] : ''][$value['msgid']] = $value['msgstr']; return; // Called at end of import to inform the user case 'db-report': return array($header_done, $report['additions'], $report['updates'], $report['deletes'], $report['skips']); // Store the string we got in the database. case 'db-store': // We got header information. if ($value['msgid'] == '') { $languages = language_list(); if (($mode != LOCALE_IMPORT_KEEP) || empty($languages[$lang]->plurals)) { // Since we only need to parse the header if we ought to update the // plural formula, only run this if we don't need to keep existing // data untouched or if we don't have an existing plural formula. $header = _locale_import_parse_header($value['msgstr']); // Get and store the plural formula if available. if (isset($header["Plural-Forms"]) && $p = _locale_import_parse_plural_forms($header["Plural-Forms"], $file->uri)) { list($nplurals, $plural) = $p; db_update('languages') ->fields(array( 'plurals' => $nplurals, 'formula' => $plural, )) ->condition('language', $lang) ->execute(); } } $header_done = TRUE; } else { // Some real string to import. $comments = _locale_import_shorten_comments(empty($value['#']) ? array() : $value['#']); if (strpos($value['msgid'], "\0")) { // This string has plural versions. $english = explode("\0", $value['msgid'], 2); $entries = array_keys($value['msgstr']); for ($i = 3; $i <= count($entries); $i++) { $english[] = $english[1]; } $translation = array_map('_locale_import_append_plural', $value['msgstr'], $entries); $english = array_map('_locale_import_append_plural', $english, $entries); foreach ($translation as $key => $trans) { if ($key == 0) { $plid = 0; } $plid = _locale_import_one_string_db($report, $lang, isset($value['msgctxt']) ? $value['msgctxt'] : '', $english[$key], $trans, $group, $comments, $mode, $plid, $key); } } else { // A simple string to import. $english = $value['msgid']; $translation = $value['msgstr']; _locale_import_one_string_db($report, $lang, isset($value['msgctxt']) ? $value['msgctxt'] : '', $english, $translation, $group, $comments, $mode); } } } // end of db-store operation } /** * Import one string into the database. * * @param $report * Report array summarizing the number of changes done in the form: * array(inserts, updates, deletes). * @param $langcode * Language code to import string into. * @param $context * The context of this string. * @param $source * Source string. * @param $translation * Translation to language specified in $langcode. * @param $textgroup * Name of textgroup to store translation in. * @param $location * Location value to save with source string. * @param $mode * Import mode to use, LOCALE_IMPORT_KEEP or LOCALE_IMPORT_OVERWRITE. * @param $plid * Optional plural ID to use. * @param $plural * Optional plural value to use. * * @return * The string ID of the existing string modified or the new string added. */ function _locale_import_one_string_db(&$report, $langcode, $context, $source, $translation, $textgroup, $location, $mode, $plid = 0, $plural = 0) { $lid = db_query("SELECT lid FROM {locales_source} WHERE source = :source AND context = :context AND textgroup = :textgroup", array(':source' => $source, ':context' => $context, ':textgroup' => $textgroup))->fetchField(); if (!empty($translation)) { // Skip this string unless it passes a check for dangerous code. // Text groups other than default still can contain HTML tags // (i.e. translatable blocks). if ($textgroup == "default" && !locale_string_is_safe($translation)) { $report['skips']++; $lid = 0; } elseif ($lid) { // We have this source string saved already. db_update('locales_source') ->fields(array( 'location' => $location, )) ->condition('lid', $lid) ->execute(); $exists = db_query("SELECT COUNT(lid) FROM {locales_target} WHERE lid = :lid AND language = :language", array(':lid' => $lid, ':language' => $langcode))->fetchField(); if (!$exists) { // No translation in this language. db_insert('locales_target') ->fields(array( 'lid' => $lid, 'language' => $langcode, 'translation' => $translation, 'plid' => $plid, 'plural' => $plural, )) ->execute(); $report['additions']++; } elseif ($mode == LOCALE_IMPORT_OVERWRITE) { // Translation exists, only overwrite if instructed. db_update('locales_target') ->fields(array( 'translation' => $translation, 'plid' => $plid, 'plural' => $plural, )) ->condition('language', $langcode) ->condition('lid', $lid) ->execute(); $report['updates']++; } } else { // No such source string in the database yet. $lid = db_insert('locales_source') ->fields(array( 'location' => $location, 'source' => $source, 'context' => (string) $context, 'textgroup' => $textgroup, )) ->execute(); db_insert('locales_target') ->fields(array( 'lid' => $lid, 'language' => $langcode, 'translation' => $translation, 'plid' => $plid, 'plural' => $plural )) ->execute(); $report['additions']++; } } elseif ($mode == LOCALE_IMPORT_OVERWRITE) { // Empty translation, remove existing if instructed. db_delete('locales_target') ->condition('language', $langcode) ->condition('lid', $lid) ->condition('plid', $plid) ->condition('plural', $plural) ->execute(); $report['deletes']++; } return $lid; } /** * Parses a Gettext Portable Object file header * * @param $header * A string containing the complete header. * * @return * An associative array of key-value pairs. */ function _locale_import_parse_header($header) { $header_parsed = array(); $lines = array_map('trim', explode("\n", $header)); foreach ($lines as $line) { if ($line) { list($tag, $contents) = explode(":", $line, 2); $header_parsed[trim($tag)] = trim($contents); } } return $header_parsed; } /** * Parses a Plural-Forms entry from a Gettext Portable Object file header * * @param $pluralforms * A string containing the Plural-Forms entry. * @param $filepath * A string containing the filepath. * * @return * An array containing the number of plurals and a * formula in PHP for computing the plural form. */ function _locale_import_parse_plural_forms($pluralforms, $filepath) { // First, delete all whitespace $pluralforms = strtr($pluralforms, array(" " => "", "\t" => "")); // Select the parts that define nplurals and plural $nplurals = strstr($pluralforms, "nplurals="); if (strpos($nplurals, ";")) { $nplurals = substr($nplurals, 9, strpos($nplurals, ";") - 9); } else { return FALSE; } $plural = strstr($pluralforms, "plural="); if (strpos($plural, ";")) { $plural = substr($plural, 7, strpos($plural, ";") - 7); } else { return FALSE; } // Get PHP version of the plural formula $plural = _locale_import_parse_arithmetic($plural); if ($plural !== FALSE) { return array($nplurals, $plural); } else { drupal_set_message(t('The translation file %filepath contains an error: the plural formula could not be parsed.', array('%filepath' => $filepath)), 'error'); return FALSE; } } /** * Parses and sanitizes an arithmetic formula into a PHP expression * * While parsing, we ensure, that the operators have the right * precedence and associativity. * * @param $string * A string containing the arithmetic formula. * * @return * The PHP version of the formula. */ function _locale_import_parse_arithmetic($string) { // Operator precedence table $precedence = array("(" => -1, ")" => -1, "?" => 1, ":" => 1, "||" => 3, "&&" => 4, "==" => 5, "!=" => 5, "<" => 6, ">" => 6, "<=" => 6, ">=" => 6, "+" => 7, "-" => 7, "*" => 8, "/" => 8, "%" => 8); // Right associativity $right_associativity = array("?" => 1, ":" => 1); $tokens = _locale_import_tokenize_formula($string); // Parse by converting into infix notation then back into postfix // Operator stack - holds math operators and symbols $operator_stack = array(); // Element Stack - holds data to be operated on $element_stack = array(); foreach ($tokens as $token) { $current_token = $token; // Numbers and the $n variable are simply pushed into $element_stack if (is_numeric($token)) { $element_stack[] = $current_token; } elseif ($current_token == "n") { $element_stack[] = '$n'; } elseif ($current_token == "(") { $operator_stack[] = $current_token; } elseif ($current_token == ")") { $topop = array_pop($operator_stack); while (isset($topop) && ($topop != "(")) { $element_stack[] = $topop; $topop = array_pop($operator_stack); } } elseif (!empty($precedence[$current_token])) { // If it's an operator, then pop from $operator_stack into $element_stack until the // precedence in $operator_stack is less than current, then push into $operator_stack $topop = array_pop($operator_stack); while (isset($topop) && ($precedence[$topop] >= $precedence[$current_token]) && !(($precedence[$topop] == $precedence[$current_token]) && !empty($right_associativity[$topop]) && !empty($right_associativity[$current_token]))) { $element_stack[] = $topop; $topop = array_pop($operator_stack); } if ($topop) { $operator_stack[] = $topop; // Return element to top } $operator_stack[] = $current_token; // Parentheses are not needed } else { return FALSE; } } // Flush operator stack $topop = array_pop($operator_stack); while ($topop != NULL) { $element_stack[] = $topop; $topop = array_pop($operator_stack); } // Now extract formula from stack $previous_size = count($element_stack) + 1; while (count($element_stack) < $previous_size) { $previous_size = count($element_stack); for ($i = 2; $i < count($element_stack); $i++) { $op = $element_stack[$i]; if (!empty($precedence[$op])) { $f = ""; if ($op == ":") { $f = $element_stack[$i - 2] . "):" . $element_stack[$i - 1] . ")"; } elseif ($op == "?") { $f = "(" . $element_stack[$i - 2] . "?(" . $element_stack[$i - 1]; } else { $f = "(" . $element_stack[$i - 2] . $op . $element_stack[$i - 1] . ")"; } array_splice($element_stack, $i - 2, 3, $f); break; } } } // If only one element is left, the number of operators is appropriate if (count($element_stack) == 1) { return $element_stack[0]; } else { return FALSE; } } /** * Backward compatible implementation of token_get_all() for formula parsing * * @param $string * A string containing the arithmetic formula. * * @return * The PHP version of the formula. */ function _locale_import_tokenize_formula($formula) { $formula = str_replace(" ", "", $formula); $tokens = array(); for ($i = 0; $i < strlen($formula); $i++) { if (is_numeric($formula[$i])) { $num = $formula[$i]; $j = $i + 1; while ($j < strlen($formula) && is_numeric($formula[$j])) { $num .= $formula[$j]; $j++; } $i = $j - 1; $tokens[] = $num; } elseif ($pos = strpos(" =<>!&|", $formula[$i])) { // We won't have a space $next = $formula[$i + 1]; switch ($pos) { case 1: case 2: case 3: case 4: if ($next == '=') { $tokens[] = $formula[$i] . '='; $i++; } else { $tokens[] = $formula[$i]; } break; case 5: if ($next == '&') { $tokens[] = '&&'; $i++; } else { $tokens[] = $formula[$i]; } break; case 6: if ($next == '|') { $tokens[] = '||'; $i++; } else { $tokens[] = $formula[$i]; } break; } } else { $tokens[] = $formula[$i]; } } return $tokens; } /** * Modify a string to contain proper count indices * * This is a callback function used via array_map() * * @param $entry * An array element. * @param $key * Index of the array element. */ function _locale_import_append_plural($entry, $key) { // No modifications for 0, 1 if ($key == 0 || $key == 1) { return $entry; } // First remove any possibly false indices, then add new ones $entry = preg_replace('/(@count)\[[0-9]\]/', '\\1', $entry); return preg_replace('/(@count)/', "\\1[$key]", $entry); } /** * Generate a short, one string version of the passed comment array * * @param $comment * An array of strings containing a comment. * * @return * Short one string version of the comment. */ function _locale_import_shorten_comments($comment) { $comm = ''; while (count($comment)) { $test = $comm . substr(array_shift($comment), 1) . ', '; if (strlen($comm) < 130) { $comm = $test; } else { break; } } return trim(substr($comm, 0, -2)); } /** * Parses a string in quotes * * @param $string * A string specified with enclosing quotes. * * @return * The string parsed from inside the quotes. */ function _locale_import_parse_quoted($string) { if (substr($string, 0, 1) != substr($string, -1, 1)) { return FALSE; // Start and end quotes must be the same } $quote = substr($string, 0, 1); $string = substr($string, 1, -1); if ($quote == '"') { // Double quotes: strip slashes return stripcslashes($string); } elseif ($quote == "'") { // Simple quote: return as-is return $string; } else { return FALSE; // Unrecognized quote } } /** * @} End of "locale-api-import-export" */ /** * Parses a JavaScript file, extracts strings wrapped in Drupal.t() and * Drupal.formatPlural() and inserts them into the database. */ function _locale_parse_js_file($filepath) { global $language; // The file path might contain a query string, so make sure we only use the // actual file. $parsed_url = drupal_parse_url($filepath); $filepath = $parsed_url['path']; // Load the JavaScript file. $file = file_get_contents($filepath); // Match all calls to Drupal.t() in an array. // Note: \s also matches newlines with the 's' modifier. preg_match_all('~ [^\w]Drupal\s*\.\s*t\s* # match "Drupal.t" with whitespace \(\s* # match "(" argument list start (' . LOCALE_JS_STRING . ')\s* # capture string argument (?:,\s*' . LOCALE_JS_OBJECT . '\s* # optionally capture str args (?:,\s*' . LOCALE_JS_OBJECT_CONTEXT . '\s*) # optionally capture context ?)? # close optional args [,\)] # match ")" or "," to finish ~sx', $file, $t_matches); // Match all Drupal.formatPlural() calls in another array. preg_match_all('~ [^\w]Drupal\s*\.\s*formatPlural\s* # match "Drupal.formatPlural" with whitespace \( # match "(" argument list start \s*.+?\s*,\s* # match count argument (' . LOCALE_JS_STRING . ')\s*,\s* # match singular string argument ( # capture plural string argument (?: # non-capturing group to repeat string pieces (?: \' # match start of single-quoted string (?:\\\\\'|[^\'])* # match any character except unescaped single-quote @count # match "@count" (?:\\\\\'|[^\'])* # match any character except unescaped single-quote \' # match end of single-quoted string | " # match start of double-quoted string (?:\\\\"|[^"])* # match any character except unescaped double-quote @count # match "@count" (?:\\\\"|[^"])* # match any character except unescaped double-quote " # match end of double-quoted string ) (?:\s*\+\s*)? # match "+" with possible whitespace, for str concat )+ # match multiple because we supports concatenating strs )\s* # end capturing of plural string argument (?:,\s*' . LOCALE_JS_OBJECT . '\s* # optionally capture string args (?:,\s*' . LOCALE_JS_OBJECT_CONTEXT . '\s*)? # optionally capture context )? [,\)] ~sx', $file, $plural_matches); $matches = array(); // Add strings from Drupal.t(). foreach ($t_matches[1] as $key => $string) { $matches[] = array( 'string' => $string, 'context' => $t_matches[2][$key], ); } // Add string from Drupal.formatPlural(). foreach ($plural_matches[1] as $key => $string) { $matches[] = array( 'string' => $string, 'context' => $plural_matches[3][$key], ); // If there is also a plural version of this string, add it to the strings array. if (isset($plural_matches[2][$key])) { $matches[] = array( 'string' => $plural_matches[2][$key], 'context' => $plural_matches[3][$key], ); } } foreach ($matches as $key => $match) { // Remove the quotes and string concatenations from the string. $string = implode('', preg_split('~(?<!\\\\)[\'"]\s*\+\s*[\'"]~s', substr($match['string'], 1, -1))); $context = implode('', preg_split('~(?<!\\\\)[\'"]\s*\+\s*[\'"]~s', substr($match['context'], 1, -1))); $source = db_query("SELECT lid, location FROM {locales_source} WHERE source = :source AND context = :context AND textgroup = 'default'", array(':source' => $string, ':context' => $context))->fetchObject(); if ($source) { // We already have this source string and now have to add the location // to the location column, if this file is not yet present in there. $locations = preg_split('~\s*;\s*~', $source->location); if (!in_array($filepath, $locations)) { $locations[] = $filepath; $locations = implode('; ', $locations); // Save the new locations string to the database. db_update('locales_source') ->fields(array( 'location' => $locations, )) ->condition('lid', $source->lid) ->execute(); } } else { // We don't have the source string yet, thus we insert it into the database. db_insert('locales_source') ->fields(array( 'location' => $filepath, 'source' => $string, 'context' => $context, 'textgroup' => 'default', )) ->execute(); } } } /** * @addtogroup locale-api-import-export * @{ */ /** * Generates a structured array of all strings with translations in * $language, if given. This array can be used to generate an export * of the string in the database. * * @param $language * Language object to generate the output for, or NULL if generating * translation template. * @param $group * Text group to export PO file from (eg. 'default' for interface * translations). */ function _locale_export_get_strings($language = NULL, $group = 'default') { if (isset($language)) { $result = db_query("SELECT s.lid, s.source, s.context, s.location, t.translation, t.plid, t.plural FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid AND t.language = :language WHERE s.textgroup = :textgroup ORDER BY t.plid, t.plural", array(':language' => $language->language, ':textgroup' => $group)); } else { $result = db_query("SELECT s.lid, s.source, s.context, s.location, t.plid, t.plural FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid WHERE s.textgroup = :textgroup ORDER BY t.plid, t.plural", array(':textgroup' => $group)); } $strings = array(); foreach ($result as $child) { $string = array( 'comment' => $child->location, 'source' => $child->source, 'context' => $child->context, 'translation' => isset($child->translation) ? $child->translation : '', ); if ($child->plid) { // Has a parent lid. Since we process in the order of plids, // we already have the parent in the array, so we can add the // lid to the next plural version to it. This builds a linked // list of plurals. $string['child'] = TRUE; $strings[$child->plid]['plural'] = $child->lid; } $strings[$child->lid] = $string; } return $strings; } /** * Generates the PO(T) file contents for given strings. * * @param $language * Language object to generate the output for, or NULL if generating * translation template. * @param $strings * Array of strings to export. See _locale_export_get_strings() * on how it should be formatted. * @param $header * The header portion to use for the output file. Defaults * are provided for PO and POT files. */ function _locale_export_po_generate($language = NULL, $strings = array(), $header = NULL) { global $user; if (!isset($header)) { if (isset($language)) { $header = '# ' . $language->name . ' translation of ' . variable_get('site_name', 'Drupal') . "\n"; $header .= '# Generated by ' . $user->name . ' <' . $user->mail . ">\n"; $header .= "#\n"; $header .= "msgid \"\"\n"; $header .= "msgstr \"\"\n"; $header .= "\"Project-Id-Version: PROJECT VERSION\\n\"\n"; $header .= "\"POT-Creation-Date: " . date("Y-m-d H:iO") . "\\n\"\n"; $header .= "\"PO-Revision-Date: " . date("Y-m-d H:iO") . "\\n\"\n"; $header .= "\"Last-Translator: NAME <EMAIL@ADDRESS>\\n\"\n"; $header .= "\"Language-Team: LANGUAGE <EMAIL@ADDRESS>\\n\"\n"; $header .= "\"MIME-Version: 1.0\\n\"\n"; $header .= "\"Content-Type: text/plain; charset=utf-8\\n\"\n"; $header .= "\"Content-Transfer-Encoding: 8bit\\n\"\n"; if ($language->formula && $language->plurals) { $header .= "\"Plural-Forms: nplurals=" . $language->plurals . "; plural=" . strtr($language->formula, array('$' => '')) . ";\\n\"\n"; } } else { $header = "# LANGUAGE translation of PROJECT\n"; $header .= "# Copyright (c) YEAR NAME <EMAIL@ADDRESS>\n"; $header .= "#\n"; $header .= "msgid \"\"\n"; $header .= "msgstr \"\"\n"; $header .= "\"Project-Id-Version: PROJECT VERSION\\n\"\n"; $header .= "\"POT-Creation-Date: " . date("Y-m-d H:iO") . "\\n\"\n"; $header .= "\"PO-Revision-Date: YYYY-mm-DD HH:MM+ZZZZ\\n\"\n"; $header .= "\"Last-Translator: NAME <EMAIL@ADDRESS>\\n\"\n"; $header .= "\"Language-Team: LANGUAGE <EMAIL@ADDRESS>\\n\"\n"; $header .= "\"MIME-Version: 1.0\\n\"\n"; $header .= "\"Content-Type: text/plain; charset=utf-8\\n\"\n"; $header .= "\"Content-Transfer-Encoding: 8bit\\n\"\n"; $header .= "\"Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\\n\"\n"; } } $output = $header . "\n"; foreach ($strings as $lid => $string) { // Only process non-children, children are output below their parent. if (!isset($string['child'])) { if ($string['comment']) { $output .= '#: ' . $string['comment'] . "\n"; } if (!empty($string['context'])) { $output .= 'msgctxt ' . _locale_export_string($string['context']); } $output .= 'msgid ' . _locale_export_string($string['source']); if (!empty($string['plural'])) { $plural = $string['plural']; $output .= 'msgid_plural ' . _locale_export_string($strings[$plural]['source']); if (isset($language)) { $translation = $string['translation']; for ($i = 0; $i < $language->plurals; $i++) { $output .= 'msgstr[' . $i . '] ' . _locale_export_string($translation); if ($plural) { $translation = _locale_export_remove_plural($strings[$plural]['translation']); $plural = isset($strings[$plural]['plural']) ? $strings[$plural]['plural'] : 0; } else { $translation = ''; } } } else { $output .= 'msgstr[0] ""' . "\n"; $output .= 'msgstr[1] ""' . "\n"; } } else { $output .= 'msgstr ' . _locale_export_string($string['translation']); } $output .= "\n"; } } return $output; } /** * Write a generated PO or POT file to the output. * * @param $language * Language object to generate the output for, or NULL if generating * translation template. * @param $output * The PO(T) file to output as a string. See _locale_export_generate_po() * on how it can be generated. */ function _locale_export_po($language = NULL, $output = NULL) { // Log the export event. if (isset($language)) { $filename = $language->language . '.po'; watchdog('locale', 'Exported %locale translation file: %filename.', array('%locale' => $language->name, '%filename' => $filename)); } else { $filename = 'drupal.pot'; watchdog('locale', 'Exported translation file: %filename.', array('%filename' => $filename)); } // Download the file for the client. header("Content-Disposition: attachment; filename=$filename"); header("Content-Type: text/plain; charset=utf-8"); print $output; drupal_exit(); } /** * Print out a string on multiple lines */ function _locale_export_string($str) { $stri = addcslashes($str, "\0..\37\\\""); $parts = array(); // Cut text into several lines while ($stri != "") { $i = strpos($stri, "\\n"); if ($i === FALSE) { $curstr = $stri; $stri = ""; } else { $curstr = substr($stri, 0, $i + 2); $stri = substr($stri, $i + 2); } $curparts = explode("\n", _locale_export_wrap($curstr, 70)); $parts = array_merge($parts, $curparts); } // Multiline string if (count($parts) > 1) { return "\"\"\n\"" . implode("\"\n\"", $parts) . "\"\n"; } // Single line string elseif (count($parts) == 1) { return "\"$parts[0]\"\n"; } // No translation else { return "\"\"\n"; } } /** * Custom word wrapping for Portable Object (Template) files. */ function _locale_export_wrap($str, $len) { $words = explode(' ', $str); $return = array(); $cur = ""; $nstr = 1; while (count($words)) { $word = array_shift($words); if ($nstr) { $cur = $word; $nstr = 0; } elseif (strlen("$cur $word") > $len) { $return[] = $cur . " "; $cur = $word; } else { $cur = "$cur $word"; } } $return[] = $cur; return implode("\n", $return); } /** * Removes plural index information from a string */ function _locale_export_remove_plural($entry) { return preg_replace('/(@count)\[[0-9]\]/', '\\1', $entry); } /** * @} End of "locale-api-import-export" */ /** * @defgroup locale-api-seek Translation search API * @{ * Functions to search in translation files. * * These functions provide the functionality to search for specific * translations. */ /** * Perform a string search and display results in a table */ function _locale_translate_seek() { $output = ''; // We have at least one criterion to match if (!($query = _locale_translate_seek_query())) { $query = array( 'translation' => 'all', 'group' => 'all', 'language' => 'all', 'string' => '', ); } $sql_query = db_select('locales_source', 's'); $limit_language = NULL; if ($query['language'] != 'en' && $query['language'] != 'all') { $sql_query->leftJoin('locales_target', 't', "t.lid = s.lid AND t.language = :langcode", array(':langcode' => $query['language'])); $limit_language = $query['language']; } else { $sql_query->leftJoin('locales_target', 't', 't.lid = s.lid'); } $sql_query->fields('s', array('source', 'location', 'context', 'lid', 'textgroup')); $sql_query->fields('t', array('translation', 'language')); // Compute LIKE section. switch ($query['translation']) { case 'translated': $sql_query->condition('t.translation', '%' . db_like($query['string']) . '%', 'LIKE'); $sql_query->orderBy('t.translation', 'DESC'); break; case 'untranslated': $sql_query->condition(db_and() ->condition('s.source', '%' . db_like($query['string']) . '%', 'LIKE') ->isNull('t.translation') ); $sql_query->orderBy('s.source'); break; case 'all' : default: $condition = db_or() ->condition('s.source', '%' . db_like($query['string']) . '%', 'LIKE'); if ($query['language'] != 'en') { // Only search in translations if the language is not forced to English. $condition->condition('t.translation', '%' . db_like($query['string']) . '%', 'LIKE'); } $sql_query->condition($condition); break; } // Add a condition on the text group. if (!empty($query['group']) && $query['group'] != 'all') { $sql_query->condition('s.textgroup', $query['group']); } $sql_query = $sql_query->extend('PagerDefault')->limit(50); $locales = $sql_query->execute(); $groups = module_invoke_all('locale', 'groups'); $header = array(t('Text group'), t('String'), t('Context'), ($limit_language) ? t('Language') : t('Languages'), array('data' => t('Operations'), 'colspan' => '2')); $strings = array(); foreach ($locales as $locale) { if (!isset($strings[$locale->lid])) { $strings[$locale->lid] = array( 'group' => $locale->textgroup, 'languages' => array(), 'location' => $locale->location, 'source' => $locale->source, 'context' => $locale->context, ); } if (isset($locale->language)) { $strings[$locale->lid]['languages'][$locale->language] = $locale->translation; } } $rows = array(); foreach ($strings as $lid => $string) { $rows[] = array( $groups[$string['group']], array('data' => check_plain(truncate_utf8($string['source'], 150, FALSE, TRUE)) . '<br /><small>' . $string['location'] . '</small>'), $string['context'], array('data' => _locale_translate_language_list($string, $limit_language), 'align' => 'center'), array('data' => l(t('edit'), "admin/config/regional/translate/edit/$lid", array('query' => drupal_get_destination())), 'class' => array('nowrap')), array('data' => l(t('delete'), "admin/config/regional/translate/delete/$lid", array('query' => drupal_get_destination())), 'class' => array('nowrap')), ); } $output .= theme('table', array('header' => $header, 'rows' => $rows, 'empty' => t('No strings available.'))); $output .= theme('pager'); return $output; } /** * Build array out of search criteria specified in request variables */ function _locale_translate_seek_query() { $query = &drupal_static(__FUNCTION__); if (!isset($query)) { $query = array(); $fields = array('string', 'language', 'translation', 'group'); foreach ($fields as $field) { if (isset($_SESSION['locale_translation_filter'][$field])) { $query[$field] = $_SESSION['locale_translation_filter'][$field]; } } } return $query; } /** * Force the JavaScript translation file(s) to be refreshed. * * This function sets a refresh flag for a specified language, or all * languages except English, if none specified. JavaScript translation * files are rebuilt (with locale_update_js_files()) the next time a * request is served in that language. * * @param $langcode * The language code for which the file needs to be refreshed. * * @return * New content of the 'javascript_parsed' variable. */ function _locale_invalidate_js($langcode = NULL) { $parsed = variable_get('javascript_parsed', array()); if (empty($langcode)) { // Invalidate all languages. $languages = language_list(); unset($languages['en']); foreach ($languages as $lcode => $data) { $parsed['refresh:' . $lcode] = 'waiting'; } } else { // Invalidate single language. $parsed['refresh:' . $langcode] = 'waiting'; } variable_set('javascript_parsed', $parsed); return $parsed; } /** * (Re-)Creates the JavaScript translation file for a language. * * @param $language * The language, the translation file should be (re)created for. */ function _locale_rebuild_js($langcode = NULL) { if (!isset($langcode)) { global $language; } else { // Get information about the locale. $languages = language_list(); $language = $languages[$langcode]; } // Construct the array for JavaScript translations. // Only add strings with a translation to the translations array. $result = db_query("SELECT s.lid, s.source, s.context, t.translation FROM {locales_source} s INNER JOIN {locales_target} t ON s.lid = t.lid AND t.language = :language WHERE s.location LIKE '%.js%' AND s.textgroup = :textgroup", array(':language' => $language->language, ':textgroup' => 'default')); $translations = array(); foreach ($result as $data) { $translations[$data->context][$data->source] = $data->translation; } // Construct the JavaScript file, if there are translations. $data_hash = NULL; $data = $status = ''; if (!empty($translations)) { $data = "Drupal.locale = { "; if (!empty($language->formula)) { $data .= "'pluralFormula': function (\$n) { return Number({$language->formula}); }, "; } $data .= "'strings': " . drupal_json_encode($translations) . " };"; $data_hash = drupal_hash_base64($data); } // Construct the filepath where JS translation files are stored. // There is (on purpose) no front end to edit that variable. $dir = 'public://' . variable_get('locale_js_directory', 'languages'); // Delete old file, if we have no translations anymore, or a different file to be saved. $changed_hash = $language->javascript != $data_hash; if (!empty($language->javascript) && (!$data || $changed_hash)) { file_unmanaged_delete($dir . '/' . $language->language . '_' . $language->javascript . '.js'); $language->javascript = ''; $status = 'deleted'; } // Only create a new file if the content has changed or the original file got // lost. $dest = $dir . '/' . $language->language . '_' . $data_hash . '.js'; if ($data && ($changed_hash || !file_exists($dest))) { // Ensure that the directory exists and is writable, if possible. file_prepare_directory($dir, FILE_CREATE_DIRECTORY); // Save the file. if (file_unmanaged_save_data($data, $dest)) { $language->javascript = $data_hash; // If we deleted a previous version of the file and we replace it with a // new one we have an update. if ($status == 'deleted') { $status = 'updated'; } // If the file did not exist previously and the data has changed we have // a fresh creation. elseif ($changed_hash) { $status = 'created'; } // If the data hash is unchanged the translation was lost and has to be // rebuilt. else { $status = 'rebuilt'; } } else { $language->javascript = ''; $status = 'error'; } } // Save the new JavaScript hash (or an empty value if the file just got // deleted). Act only if some operation was executed that changed the hash // code. if ($status && $changed_hash) { db_update('languages') ->fields(array( 'javascript' => $language->javascript, )) ->condition('language', $language->language) ->execute(); // Update the default language variable if the default language has been altered. // This is necessary to keep the variable consistent with the database // version of the language and to prevent checking against an outdated hash. $default_langcode = language_default('language'); if ($default_langcode == $language->language) { $default = db_query("SELECT * FROM {languages} WHERE language = :language", array(':language' => $default_langcode))->fetchObject(); variable_set('language_default', $default); } } // Log the operation and return success flag. switch ($status) { case 'updated': watchdog('locale', 'Updated JavaScript translation file for the language %language.', array('%language' => t($language->name))); return TRUE; case 'rebuilt': watchdog('locale', 'JavaScript translation file %file.js was lost.', array('%file' => $language->javascript), WATCHDOG_WARNING); // Proceed to the 'created' case as the JavaScript translation file has // been created again. case 'created': watchdog('locale', 'Created JavaScript translation file for the language %language.', array('%language' => t($language->name))); return TRUE; case 'deleted': watchdog('locale', 'Removed JavaScript translation file for the language %language, because no translations currently exist for that language.', array('%language' => t($language->name))); return TRUE; case 'error': watchdog('locale', 'An error occurred during creation of the JavaScript translation file for the language %language.', array('%language' => t($language->name)), WATCHDOG_ERROR); return FALSE; default: // No operation needed. return TRUE; } } /** * List languages in search result table */ function _locale_translate_language_list($string, $limit_language) { // Add CSS. drupal_add_css(drupal_get_path('module', 'locale') . '/locale.css'); // Include both translated and not yet translated target languages in the // list. The source language is English for built-in strings and the default // language for other strings. $languages = language_list(); $default = language_default(); $omit = $string['group'] == 'default' ? 'en' : $default->language; unset($languages[$omit]); $output = ''; foreach ($languages as $langcode => $language) { if (!$limit_language || $limit_language == $langcode) { $output .= (!empty($string['languages'][$langcode])) ? $langcode . ' ' : "<em class=\"locale-untranslated\">$langcode</em> "; } } return $output; } /** * @} End of "locale-api-seek" */ /** * @defgroup locale-api-predefined List of predefined languages * @{ * API to provide a list of predefined languages. */ /** * Prepares the language code list for a select form item with only the unsupported ones */ function _locale_prepare_predefined_list() { include_once DRUPAL_ROOT . '/includes/iso.inc'; $languages = language_list(); $predefined = _locale_get_predefined_list(); foreach ($predefined as $key => $value) { if (isset($languages[$key])) { unset($predefined[$key]); continue; } // Include native name in output, if possible if (count($value) > 1) { $tname = t($value[0]); $predefined[$key] = ($tname == $value[1]) ? $tname : "$tname ($value[1])"; } else { $predefined[$key] = t($value[0]); } } asort($predefined); return $predefined; } /** * @} End of "locale-api-languages-predefined" */ /** * @defgroup locale-autoimport Automatic interface translation import * @{ * Functions to create batches for importing translations. * * These functions can be used to import translations for installed * modules. */ /** * Prepare a batch to import translations for all enabled * modules in a given language. * * @param $langcode * Language code to import translations for. * @param $finished * Optional finished callback for the batch. * @param $skip * Array of component names to skip. Used in the installer for the * second pass import, when most components are already imported. * * @return * A batch structure or FALSE if no files found. */ function locale_batch_by_language($langcode, $finished = NULL, $skip = array()) { // Collect all files to import for all enabled modules and themes. $files = array(); $components = array(); $query = db_select('system', 's'); $query->fields('s', array('name', 'filename')); $query->condition('s.status', 1); if (count($skip)) { $query->condition('name', $skip, 'NOT IN'); } $result = $query->execute(); foreach ($result as $component) { // Collect all files for all components, names as $langcode.po or // with names ending with $langcode.po. This allows for filenames // like node-module.de.po to let translators use small files and // be able to import in smaller chunks. $files = array_merge($files, file_scan_directory(dirname($component->filename) . '/translations', '/(^|\.)' . $langcode . '\.po$/', array('recurse' => FALSE))); $components[] = $component->name; } return _locale_batch_build($files, $finished, $components); } /** * Prepare a batch to run when installing modules or enabling themes. * * This batch will import translations for the newly added components * in all the languages already set up on the site. * * @param $components * An array of component (theme and/or module) names to import * translations for. * @param $finished * Optional finished callback for the batch. */ function locale_batch_by_component($components, $finished = '_locale_batch_system_finished') { $files = array(); $languages = language_list('enabled'); unset($languages[1]['en']); if (count($languages[1])) { $language_list = join('|', array_keys($languages[1])); // Collect all files to import for all $components. $result = db_query("SELECT name, filename FROM {system} WHERE status = 1"); foreach ($result as $component) { if (in_array($component->name, $components)) { // Collect all files for this component in all enabled languages, named // as $langcode.po or with names ending with $langcode.po. This allows // for filenames like node-module.de.po to let translators use small // files and be able to import in smaller chunks. $files = array_merge($files, file_scan_directory(dirname($component->filename) . '/translations', '/(^|\.)(' . $language_list . ')\.po$/', array('recurse' => FALSE))); } } return _locale_batch_build($files, $finished); } return FALSE; } /** * Build a locale batch from an array of files. * * @param $files * Array of files to import. * @param $finished * Optional finished callback for the batch. * @param $components * Optional list of component names the batch covers. Used in the installer. * * @return * A batch structure. */ function _locale_batch_build($files, $finished = NULL, $components = array()) { $t = get_t(); if (count($files)) { $operations = array(); foreach ($files as $file) { // We call _locale_batch_import for every batch operation. $operations[] = array('_locale_batch_import', array($file->uri)); } $batch = array( 'operations' => $operations, 'title' => $t('Importing interface translations'), 'init_message' => $t('Starting import'), 'error_message' => $t('Error importing interface translations'), 'file' => 'includes/locale.inc', // This is not a batch API construct, but data passed along to the // installer, so we know what did we import already. '#components' => $components, ); if (isset($finished)) { $batch['finished'] = $finished; } return $batch; } return FALSE; } /** * Perform interface translation import as a batch step. * * @param $filepath * Path to a file to import. * @param $results * Contains a list of files imported. */ function _locale_batch_import($filepath, &$context) { // The filename is either {langcode}.po or {prefix}.{langcode}.po, so // we can extract the language code to use for the import from the end. if (preg_match('!(/|\.)([^\./]+)\.po$!', $filepath, $langcode)) { $file = (object) array('filename' => drupal_basename($filepath), 'uri' => $filepath); _locale_import_read_po('db-store', $file, LOCALE_IMPORT_KEEP, $langcode[2]); $context['results'][] = $filepath; } } /** * Finished callback of system page locale import batch. * Inform the user of translation files imported. */ function _locale_batch_system_finished($success, $results) { if ($success) { drupal_set_message(format_plural(count($results), 'One translation file imported for the newly installed modules.', '@count translation files imported for the newly installed modules.')); } } /** * Finished callback of language addition locale import batch. * Inform the user of translation files imported. */ function _locale_batch_language_finished($success, $results) { if ($success) { drupal_set_message(format_plural(count($results), 'One translation file imported for the enabled modules.', '@count translation files imported for the enabled modules.')); } } /** * @} End of "locale-autoimport" */ /** * Get list of all predefined and custom countries. * * @return * An array of all country code => country name pairs. */ function country_get_list() { include_once DRUPAL_ROOT . '/includes/iso.inc'; $countries = _country_get_predefined_list(); // Allow other modules to modify the country list. drupal_alter('countries', $countries); return $countries; } /** * Save locale specific date formats to the database. * * @param $langcode * Language code, can be 2 characters, e.g. 'en' or 5 characters, e.g. * 'en-CA'. * @param $type * Date format type, e.g. 'short', 'medium'. * @param $format * The date format string. */ function locale_date_format_save($langcode, $type, $format) { $locale_format = array(); $locale_format['language'] = $langcode; $locale_format['type'] = $type; $locale_format['format'] = $format; $is_existing = (bool) db_query_range('SELECT 1 FROM {date_format_locale} WHERE language = :langcode AND type = :type', 0, 1, array(':langcode' => $langcode, ':type' => $type))->fetchField(); if ($is_existing) { $keys = array('type', 'language'); drupal_write_record('date_format_locale', $locale_format, $keys); } else { drupal_write_record('date_format_locale', $locale_format); } } /** * Select locale date format details from database. * * @param $languages * An array of language codes. * * @return * An array of date formats. */ function locale_get_localized_date_format($languages) { $formats = array(); // Get list of different format types. $format_types = system_get_date_types(); $short_default = variable_get('date_format_short', 'm/d/Y - H:i'); // Loop through each language until we find one with some date formats // configured. foreach ($languages as $language) { $date_formats = system_date_format_locale($language); if (!empty($date_formats)) { // We have locale-specific date formats, so check for their types. If // we're missing a type, use the default setting instead. foreach ($format_types as $type => $type_info) { // If format exists for this language, use it. if (!empty($date_formats[$type])) { $formats['date_format_' . $type] = $date_formats[$type]; } // Otherwise get default variable setting. If this is not set, default // to the short format. else { $formats['date_format_' . $type] = variable_get('date_format_' . $type, $short_default); } } // Return on the first match. return $formats; } } // No locale specific formats found, so use defaults. $system_types = array('short', 'medium', 'long'); // Handle system types separately as they have defaults if no variable exists. $formats['date_format_short'] = $short_default; $formats['date_format_medium'] = variable_get('date_format_medium', 'D, m/d/Y - H:i'); $formats['date_format_long'] = variable_get('date_format_long', 'l, F j, Y - H:i'); // For non-system types, get the default setting, otherwise use the short // format. foreach ($format_types as $type => $type_info) { if (!in_array($type, $system_types)) { $formats['date_format_' . $type] = variable_get('date_format_' . $type, $short_default); } } return $formats; }
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