baselanguage.class

GForge 3.0 协作开发平台 支持CVS, mailing lists, bug tracking, message boards/forums, task management, perman

<?php
//
// SourceForge: Breaking Down the Barriers to Open Source Development
// Copyright 1999-2000 (c) The SourceForge Crew
// http://sourceforge.net
//
// $Id: BaseLanguage.class,v 1.32 2001/06/12 22:25:23 pfalcon Exp $


/*

	Tim Perdue, September 7, 2000


	Base class for adding multilingual support to SF.net

	Contains variables which can be overridden optionally by other
	language files.

	Base language is english - an english class will extend this one,
	but won't override anything

	As new languages are added, they can override what they wish, and
		as we extend our class, other languages can follow suit
		as they are translated without holding up our progress

*/

class BaseLanguage {

	//array to hold the string values
	var $text_array ;
	var $lang, $name, $id, $code ;

	function BaseLanguage() {
		$this->loadLanguage('Base');
	}

	function loadLanguageFile($fname) {
		$ary = file($fname,1);
		for( $i=0; $i<sizeof($ary); $i++) {
			if (substr($ary[$i], 0, 1) == '#') {
				continue;
			}
			// Language files can include others for defaults.
			// e.g. an English-Canada.tab file might "include English" first,
			// then override all those whacky American spellings.
			if (preg_match("/^include ([a-zA-Z]+)/", $ary[$i], $matches)) {
				$dir = dirname($fname);
				$this->loadLanguageFile($dir."/".$matches[1].".tab");
			} else {
				$line = explode("\t", $ary[$i], 3);
				$this->text_array[$line[0]][$line[1]] = chop($line[2]);
			}
		}
	}

	function loadLanguageID($language_id) {
		$res=db_query("SELECT * FROM supported_languages WHERE language_id='$language_id'");
		$this->loadLanguage(db_result($res,0,'classname'));
	}

	function loadLanguage($lang) {
		global $sys_theme, $sys_urlroot;
		$fname = 'languages/'.$lang.'.tab' ;
		$this->loadLanguageFile($fname) ;
		// Site-local customizations
		$fname = '/etc/gforge/languages-local/'.$lang.'.tab' ;
		if (file_exists ($fname)) {
			$this->loadLanguageFile($fname) ;
		}
		//Customization by theme
		$ftname = $sys_urlroot.'/themes/'.$sys_theme.'/'.$lang.'.tab' ;
		if (file_exists ($ftname)) {
			$this->loadLanguageFile($ftname) ;
		}
		//Customization by theme in /etc/gforge/languages-local/<theme_name>/<Language>.tab
		$fltname = '/etc/gforge/languages-local/'.$sys_theme.'/'.$lang.'.tab' ;
		if (file_exists ($fltname)) {
			$this->loadLanguageFile($fltname) ;
		}
		$this->lang = $lang ;
	}

	function getText($pagename, $category, $args="") {
		/*
			args is an array which will replace the $1, $2, etc
			in the text_array string before it is returned
		*/
		if ($args) {
			for ($i=1; $i<=sizeof($args)+1; $i++) {
				$patterns[] = '/\$'.$i.'/';
			}
			$tstring = preg_replace($patterns, $args, $this->text_array[$pagename][$category]);
		} else {
			$tstring = $this->text_array[$pagename][$category];
		}
		return $tstring;
	}

	//result set handle for supported langauges
	var $language_res;

	/*
		returns database result
		of supported languages
	*/
	function getLanguages() {
		if (!$this->text_array['conf']['language_res']) {
			$this->text_array['conf']['language_res']=db_query("SELECT * FROM supported_languages ORDER BY name ASC");
		}
		return $this->text_array['conf']['language_res'];
	}

	function getLanguageId() {
		if (!$this->id) {
			$this->id = db_result(db_query("SELECT language_id FROM supported_languages WHERE classname='".$this->lang."'"), 0, 0) ;
		}
		return $this->id ;
	}

	function getLanguageName() {
		if (!$this->name) {
			$id = $this->getLanguageId () ;
			$this->name = db_result(db_query("SELECT name FROM supported_languages WHERE language_id='$id'"), 0, 0) ;
		}
		return $this->name ;
	}

	function getLanguageCode() {
		if (!$this->code) {
			$id = $this->getLanguageId () ;
			$this->code = db_result(db_query("SELECT language_code FROM supported_languages WHERE language_id='$id'"), 0, 0) ;
		}
		return $this->code ;
	}

	function getEncoding() {
		return $this->text_array['conf']['content_encoding'];
	}

	function getFont() {
		return $this->text_array['conf']['default_font'];
	}
}

function language_code_to_result($alang) {
	global $cookie_language_id;

	/*


		Determine which language file to use

		It depends on whether the user has set a cookie or not using
		the account page or the left-hand nav or how their browser is
		set or whether they are logged in or not

		if logged in, use language from users table
		else check for cookie and use that value if valid
		if no cookie check browser preference and use that language if valid
		else just use english

	*/

	if ($cookie_language_id) {
		$lang=$cookie_language_id;
		$res=db_query("select * from supported_languages where language_id='$lang'");
		if (!$res || db_numrows($res) < 1) {
			return db_query("select * from supported_languages where language_id='1'"); // default to english
		} else {
			return $res;
		}
	} else {
		$ary = explode(',', str_replace(' ', '', $alang)); // delete space and split
		for( $i=0; $i<sizeof($ary); $i++){
			$lang_code = ereg_replace(';.*', '', $ary[$i]); // remove ;q=0.x
			$res = db_query("select * from supported_languages where language_code = '$lang_code'");
			if (db_numrows($res) > 0) {
				return $res;
			}
			// If that didn't work, check if we have sublanguage specifier
			// If so, try to strip it and look for for main language only
			if (strstr($lang_code, '-')) {
				$lang_code = substr($lang_code, 0, 2);
				$res = db_query("select * from supported_languages where language_code = '$lang_code'");
				if (db_numrows($res) > 0) {
					return $res;
				}
			}
		}
		return db_query("select * from supported_languages where language_id='1'"); // default to english
	}
}

?>