X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fpgettext.php;h=3a89c024d77c851b7245c7483ae1801e6eab9517;hb=0457bd995fe4e723a7cad33c8d464186646db5db;hp=2ffee70bcc64c8fcae9909643e1bfc7cab2f46d1;hpb=1bba63fb607c2cb5fb2c002e63ad7128ecf8b1ea;p=friendica.git

diff --git a/include/pgettext.php b/include/pgettext.php
index 2ffee70bcc..3a89c024d7 100644
--- a/include/pgettext.php
+++ b/include/pgettext.php
@@ -1,46 +1,234 @@
 <?php
+
 /**
- * translation support
+ * @brief translation support
+ *
+ * Get the language setting directly from system variables, bypassing Config::get()
+ * as database may not yet be configured.
+ *
+ * If possible, we use the value from the browser.
+ *
  */
 
-// load string translation table for alternate language
+use Friendica\Core\Config;
+
+require_once "include/dba.php";
+
+/**
+ * @brief get the prefered language from the HTTP_ACCEPT_LANGUAGE header
+ */
+function get_browser_language() {
+
+	if (x($_SERVER, 'HTTP_ACCEPT_LANGUAGE')) {
+		// break up string into pieces (languages and q factors)
+		preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i',
+			$_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);
+
+		$lang_list = [];
+		if (count($lang_parse[1])) {
+			// go through the list of prefered languages and add a generic language
+			// for sub-linguas (e.g. de-ch will add de) if not already in array
+			for ($i = 0; $i < count($lang_parse[1]); $i++) {
+				$lang_list[] = strtolower($lang_parse[1][$i]);
+				if (strlen($lang_parse[1][$i])>3 ) {
+					$dashpos = strpos($lang_parse[1][$i], '-');
+					if (!in_array(substr($lang_parse[1][$i], 0, $dashpos), $lang_list ) ) {
+						$lang_list[] = strtolower(substr($lang_parse[1][$i], 0, $dashpos));
+					}
+				}
+			}
+		}
+	}
+
+	// check if we have translations for the preferred languages and pick the 1st that has
+	for ($i = 0; $i < count($lang_list); $i++) {
+		$lang = $lang_list[$i];
+		if ($lang === 'en' || (file_exists("view/lang/$lang") && is_dir("view/lang/$lang"))) {
+			$preferred = $lang;
+			break;
+		}
+	}
+	if (isset($preferred)) {
+		return $preferred;
+	}
+
+	// in case none matches, get the system wide configured language, or fall back to English
+	return Config::get('system', 'language', 'en');
+}
+
+
+function push_lang($language) {
+	global $lang, $a;
+
+	$a->langsave = $lang;
+
+	if ($language === $lang) {
+		return;
+	}
+
+	if (isset($a->strings) && count($a->strings)) {
+		$a->stringsave = $a->strings;
+	}
+	$a->strings = array();
+	load_translation_table($language);
+	$lang = $language;
+}
+
+function pop_lang() {
+	global $lang, $a;
+
+	if ($lang === $a->langsave) {
+		return;
+	}
+
+	if (isset($a->stringsave)) {
+		$a->strings = $a->stringsave;
+	} else {
+		$a->strings = array();
+	}
+
+	$lang = $a->langsave;
+}
+
+// l
 
-if(! function_exists('load_translation_table')) {
+/**
+ * load string translation table for alternate language
+ *
+ * first plugin strings are loaded, then globals
+ *
+ * @param string $lang language code to load
+ */
 function load_translation_table($lang) {
-	global $a;
+	$a = get_app();
 
-	if(file_exists("view/$lang/strings.php"))
-		include("view/$lang/strings.php");
-}}
+	$a->strings = array();
+	// load enabled plugins strings
+	$plugins = dba::select('addon', array('name'), array('installed' => true));
+	while ($p = dba::fetch($plugins)) {
+		$name = $p['name'];
+		if (file_exists("addon/$name/lang/$lang/strings.php")) {
+			include("addon/$name/lang/$lang/strings.php");
+		}
+	}
 
-// translate string if translation exists
+	if (file_exists("view/lang/$lang/strings.php")) {
+		include("view/lang/$lang/strings.php");
+	}
 
-if(! function_exists('t')) {
-function t($s) {
+}
 
+/**
+ * @brief Return the localized version of the provided string with optional string interpolation
+ *
+ * This function takes a english string as parameter, and if a localized version
+ * exists for the current language, substitutes it before performing an eventual
+ * string interpolation (sprintf) with additional optional arguments.
+ *
+ * Usages:
+ * - t('This is an example')
+ * - t('URL %s returned no result', $url)
+ * - t('Current version: %s, new version: %s', $current_version, $new_version)
+ *
+ * @param string $s
+ * @return string
+ */
+function t($s)
+{
 	$a = get_app();
 
-	if(x($a->strings,$s)) {
+	if (x($a->strings, $s)) {
 		$t = $a->strings[$s];
-		return is_array($t)?$t[0]:$t;
+		$s = is_array($t) ? $t[0] : $t;
+	}
+	if (func_num_args() > 1) {
+		$args = array_slice(func_get_args(), 1);
+		$s = @vsprintf($s, $args);
 	}
+
 	return $s;
-}}
+}
 
-if(! function_exists('tt')){
-function tt($singular, $plural, $count){
-	
+/**
+ * @brief Return the localized version of a singular/plural string with optional string interpolation
+ *
+ * This function takes two english strings as parameters, singular and plural, as
+ * well as a count. If a localized version exists for the current language, they
+ * are used instead. Discrimination between singular and plural is done using the
+ * localized function if any or the default one. Finally, a string interpolation
+ * is performed using the count as parameter.
+ *
+ * Usages:
+ * - tt('Like', 'Likes', $count)
+ * - tt("%s user deleted", "%s users deleted", count($users))
+ *
+ * @global type $lang
+ * @param string $singular
+ * @param string $plural
+ * @param int $count
+ * @return string
+ */
+function tt($singular, $plural, $count)
+{
+	global $lang;
 	$a = get_app();
 
-	if(x($a->strings,$singular)) {
+	if (x($a->strings, $singular)) {
 		$t = $a->strings[$singular];
-		$k = string_plural_select($count);
-		return is_array($t)?$t[$k]:$t;
-	}
-	
-	if ($count!=1){
-		return $plural;
+		if (is_array($t)) {
+			$plural_function = 'string_plural_select_' . str_replace('-', '_', $lang);
+			if (function_exists($plural_function)) {
+				$plural_function = 'string_plural_select_default';
+			}
+			$i = $plural_function($count);
+			$s = $t[$i];
+		} else {
+			$s = $t;
+		}
+	} elseif (string_plural_select_default($count)) {
+		$s = $plural;
 	} else {
-		return $singular;
+		$s = $singular;
+	}
+
+	$s = @sprintf($s, $count);
+
+	return $s;
+}
+
+// provide a fallback which will not collide with
+// a function defined in any language file
+function string_plural_select_default($n)
+{
+	return $n != 1;
+}
+
+
+
+/**
+ * @brief Return installed languages codes as associative array
+ *
+ * Scans the view/lang directory for the existence of "strings.php" files, and
+ * returns an alphabetical list of their folder names (@-char language codes).
+ * Adds the english language if it's missing from the list.
+ *
+ * Ex: array('de' => 'de', 'en' => 'en', 'fr' => 'fr', ...)
+ *
+ * @return array
+ */
+function get_available_languages() {
+	$langs = array();
+	$strings_file_paths = glob('view/lang/*/strings.php');
+
+	if (is_array($strings_file_paths) && count($strings_file_paths)) {
+		if (!in_array('view/lang/en/strings.php', $strings_file_paths)) {
+			$strings_file_paths[] = 'view/lang/en/strings.php';
+		}
+		asort($strings_file_paths);
+		foreach ($strings_file_paths as $strings_file_path) {
+			$path_array = explode('/', $strings_file_path);
+			$langs[$path_array[2]] = $path_array[2];
+		}
 	}
-}}
\ No newline at end of file
+	return $langs;
+}