friendica/include/pgettext.php

<?php

/**
 * translation support
 */


/**
 *
 * Get the language setting directly from system variables, bypassing get_config()
 * as database may not yet be configured.
 * 
 * If possible, we use the value from the browser.
 *
 */


if(! function_exists('get_language')) {
function get_language() {

	if (isset($_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);

    	if (count($lang_parse[1])) {
        	// create a list like "en" => 0.8
        	$langs = array_combine($lang_parse[1], $lang_parse[4]);
    	
        	// set default to 1 for any without q factor
        	foreach ($langs as $lang => $val) {
            	if ($val === '') $langs[$lang] = 1;
        	}

        	// sort list based on value	
        	arsort($langs, SORT_NUMERIC);
    	}
	}

	if(isset($langs) && count($langs)) {
		foreach ($langs as $lang => $v) {
			if(file_exists("view/$lang") && is_dir("view/$lang")) {
				$preferred = $lang;
				break;
			}
		}
	}

	if(isset($preferred))
		return $preferred;

	return ((isset($a->config['system']['language'])) ? $a->config['system']['language'] : 'en');
}}



// load string translation table for alternate language

if(! function_exists('load_translation_table')) {
function load_translation_table($lang) {
	global $a;

	if(file_exists("view/$lang/strings.php"))
		include("view/$lang/strings.php");
}}

// translate string if translation exists

if(! function_exists('t')) {
function t($s) {

	$a = get_app();

	if(x($a->strings,$s)) {
		$t = $a->strings[$s];
		return is_array($t)?$t[0]:$t;
	}
	return $s;
}}

if(! function_exists('tt')){
function tt($singular, $plural, $count){
	
	$a = get_app();

	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;
	} else {
		return $singular;
	}
}}