159 lines
8.7 KiB
HTML
159 lines
8.7 KiB
HTML
|
<!-- BeginDsi "dsi/head.html" -->
|
||
|
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>Embedthis Appweb 4.3.4 Documentation</title>
|
||
|
|
<meta name="keywords" content="embedded web server, web server software, embedded HTTP, application web server,
|
||
|
|
embedded server, small web server, HTTP server, library web server, library HTTP, HTTP library" />
|
||
|
|
<meta name="description" content="Embedthis Sofware provides commercial and open source embedded web servers for
|
||
|
|
devices and applications." />
|
||
|
|
<meta name="robots" content="index,follow" />
|
||
|
|
<link href="../../../doc.css" rel="stylesheet" type="text/css" />
|
||
|
|
<link href="../../../print.css" rel="stylesheet" type="text/css" media="print"/>
|
||
|
|
<!--[if IE]>
|
||
|
|
<link href="../../../iehacks.css" rel="stylesheet" type="text/css" />
|
||
|
|
<![endif]-->
|
||
|
|
<link href="http://www.google.com/cse/style/look/default.css" type="text/css" rel="stylesheet" />
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body>
|
||
|
|
<div class="top">
|
||
|
|
<a class="logo" href="http://appwebserver.org/"> </a>
|
||
|
|
<div class="topRight">
|
||
|
|
<div class="search">
|
||
|
|
<div id="cse-search-form"></div>
|
||
|
|
<div class="version">Embedthis Appweb 4.3.4</div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div class="crumbs">
|
||
|
|
<a href="../../../index.html">Home</a>
|
||
|
|
<!-- EndDsi -->
|
||
|
|
> <a href="index.html">Users Guide</a> > <b>Multi-Language Support</b>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div class="content">
|
||
|
|
<div class="contentRight">
|
||
|
|
<h1>Quick Nav</h1>
|
||
|
|
<ul class="nav">
|
||
|
|
<li><a href="#overview">Overview</a></li>
|
||
|
|
<li><a href="#configuration">Route Configuration</a></li>
|
||
|
|
</ul>
|
||
|
|
<!-- BeginDsi "dsi/usersGuideSeeAlso.html" -->
|
||
|
|
<h1>See Also</h1>
|
||
|
|
<ul class="nav">
|
||
|
|
<li><a href="../../../guide/appweb/users/index.html">User Guide Overview</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/configuration.html">Configuring Appweb</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/ports.html">Ports and Binding</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/lang.html">Multi-Language Support</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/authentication.html">User Authorization</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/logFiles.html">Log Files</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/vhosts.html">Virtual Hosts</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/security.html">Security Considerations</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/ssl.html">SSL</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/modules.html">Appweb Modules</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/stages.html">Pipeline Stages</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/client.html">HTTP Client</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/webSockets.html">WebSockets</a></li>
|
||
|
|
<li><a href="../../../guide/appweb/users/frameworks.html">Web Frameworks</a></li>
|
||
|
|
<li><a href="../../../ref/appweb/architecture.html">Appweb Architecture</a></li>
|
||
|
|
</ul>
|
||
|
|
<!-- EndDsi -->
|
||
|
|
</div>
|
||
|
|
<div class="contentLeft">
|
||
|
|
<h1>Multi-Language Support</h1>
|
||
|
|
<a id="overview"></a>
|
||
|
|
<p>Appweb supports the ability to create and manage multi-language web applications. The support includes
|
||
|
|
a language-aware <a href="routing.html">Routing Engine</a> and a set of
|
||
|
|
<a href="configuration.html#directives">configuration file directives</a> to configure and control
|
||
|
|
response language selection.</p>
|
||
|
|
<p>When a client sends a request, the HTTP headers typically include an <em>Accept-Language</em> HTTP header that
|
||
|
|
specifies the client's language preference for the request. The Appweb routing engine listens for this
|
||
|
|
header and will modify the request to select response content of the appropriate language.</p>
|
||
|
|
<a id="documents"></a>
|
||
|
|
<h2 class="section">Language Document Organization</h2>
|
||
|
|
<p>There are two organization models supported by Appweb for multi-language applications:</p>
|
||
|
|
<ul>
|
||
|
|
<li>Separate directories for each language content, and </li>
|
||
|
|
<li>Unified storage for content with a language suffix integrated into each document filename.</li>
|
||
|
|
</ul>
|
||
|
|
<p>Appweb manages these models via the <em>AddLanguageDir</em> and <em>AddLanguageSuffix</em>
|
||
|
|
directives.</p>
|
||
|
|
<a id="configuration"></a>
|
||
|
|
<h2 class="section">Language Configuration Directives</h2>
|
||
|
|
<p>Three directives control the language configuration on a per-route basis:
|
||
|
|
<em>AddLanguageDir</em>, <em>AddLanguageSuffix</em> and <em>DefaultLanguage</em>.
|
||
|
|
<a id="isotag"></a>
|
||
|
|
<h3>ISO Language Tags</h3>
|
||
|
|
<p>The AddLanguageDir and AddLanguageSuffix directives add support for a single language and so a typical Appweb
|
||
|
|
configuration file will have multiple such directives. These directives specify the language via
|
||
|
|
a language tag as defined by <a href="http://www.faqs.org/rfcs/rfc1766.html">RFC 1766 — Tags for the
|
||
|
|
identification of Languages</a> and country codes defined
|
||
|
|
in <a href="http://www.iso.org/iso/iso-3166-1_decoding_table">ISO 3166-1</a>.</p>
|
||
|
|
<h3>AddLanguageDir Directive</h3>
|
||
|
|
<p>The AddLanguageDir directive is used when language content is stored in separate directories. This directive
|
||
|
|
defines a supported language
|
||
|
|
<a href="#isotag">tag</a>
|
||
|
|
with an associated directory of language for
|
||
|
|
the language specific content.
|
||
|
|
When a client request is received, the appropriate language directory will be selected by the routing engine
|
||
|
|
using the language specified by the client's <em>Accept-Language</em> HTTP header.</p>
|
||
|
|
<pre>
|
||
|
|
<Route /info/>
|
||
|
|
AddLanguageDir en /path/to/english-docs
|
||
|
|
</Route>
|
||
|
|
</pre>
|
||
|
|
<h3>AddLanguageSuffix Directive</h3>
|
||
|
|
<p>The AddLanguageSuffix directive defines a supported language
|
||
|
|
<a href="#isotag">tag</a> with an associated filename suffix. When
|
||
|
|
a client request is received, the appropriate language will be selected using the language
|
||
|
|
specified by the client's <em>Accept-Language</em> HTTP header. Then the document filename will be constructed
|
||
|
|
using the language suffix. The suffix can be positioned either before or after the document
|
||
|
|
extension via the directives "position" argument.</p>
|
||
|
|
<pre>
|
||
|
|
<Route /info/>
|
||
|
|
AddLanguageSuffix en eng before
|
||
|
|
</Route>
|
||
|
|
</pre>
|
||
|
|
<p>With this configuration, a request for <em>/index.html</em> will resolve to <em>index.eng.html</em>.</p>
|
||
|
|
<h3>DefaultLanguage</h3>
|
||
|
|
<p>The DefaultLanguage directive defines the language to use when the the client <em>Accept-Language</em>
|
||
|
|
HTTP header is either absent or requests a non-supported language.</p>
|
||
|
|
<pre>
|
||
|
|
<Route />
|
||
|
|
DefaultLanguage en
|
||
|
|
</Route>
|
||
|
|
</pre>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<!-- BeginDsi "dsi/bottom.html" -->
|
||
|
|
<div class="bottom">
|
||
|
|
<p class="footnote">
|
||
|
|
<a href="../../../product/copyright.html" >© Embedthis Software LLC, 2003-2013.
|
||
|
|
All rights reserved. Embedthis, Appweb, ESP, Ejscript and Embedthis GoAhead are trademarks of Embedthis Software LLC.</a>
|
||
|
|
</p>
|
||
|
|
</div>
|
||
|
|
<script src="http://www.google.com/jsapi" type="text/javascript"></script>
|
||
|
|
<script type="text/javascript">
|
||
|
|
google.load('search', '1', {language : 'en'});
|
||
|
|
google.setOnLoadCallback(function() {
|
||
|
|
var customSearchControl = new google.search.CustomSearchControl(
|
||
|
|
'000262706376373952077:1hs0lhenihk');
|
||
|
|
customSearchControl.setResultSetSize(google.search.Search.FILTERED_CSE_RESULTSET);
|
||
|
|
var options = new google.search.DrawOptions();
|
||
|
|
options.enableSearchboxOnly("http://appwebserver.org/search.html");
|
||
|
|
customSearchControl.draw('cse-search-form', options);
|
||
|
|
}, true);
|
||
|
|
</script>
|
||
|
|
<script type="text/javascript">
|
||
|
|
var _gaq = _gaq || [];
|
||
|
|
_gaq.push(['_setAccount', 'UA-179169-2']);
|
||
|
|
_gaq.push(['_trackPageview']);
|
||
|
|
(function() {
|
||
|
|
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
|
||
|
|
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
|
||
|
|
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
|
||
|
|
})();
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|