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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Tutorials</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="libtranslate Reference Manual"><link rel="up" href="index.html" title="libtranslate Reference Manual"><link rel="prev" href="compiling-modules.html" title="Compiling libtranslate Modules"><link rel="next" href="ch02s02.html" title="Implementing Translation Services"><meta name="generator" content="GTK-Doc V1.2 (XML mode)"><style type="text/css">
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      </style></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="compiling-modules.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">libtranslate Reference Manual</th><td><a accesskey="n" href="ch02s02.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="tutorials"></a>Tutorials</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="tutorials.html#id2534105">Translating Text or Web Pages</a></span></dt><dt><span class="section"><a href="ch02s02.html">Implementing Translation Services</a></span></dt></dl></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2534105"></a>Translating Text or Web Pages</h2></div></div></div><p>
	To translate text or web pages, you need to initialize libtranslate
	with a call to <a href="libtranslate-translate.html#translate-init">translate_init()</a>, create a new
	session using <a href="TranslateSession.html#translate-session-new">translate_session_new()</a>,
	and call the appropriate translation function, <a href="TranslateSession.html#translate-session-translate-text">translate_session_translate_text()</a>
	or <a href="TranslateSession.html#translate-session-translate-web-page">translate_session_translate_web_page()</a>.
      </p><div class="example"><a name="id2534691"></a><p class="title"><b>Example 1. A Simple Command-Line Translator</b></p><p>
	  The following example demonstrates how to use libtranslate for
	  creating a simple command-line text and web page translator.
	</p><p>
	  The source code of this example is available in the libtranslate
	  source distribution
	  (<tt class="filename">docs/reference/example-application.c</tt>),
	  and is reproduced below.
	  On UNIX, compile it as follows:
	  </p><pre class="programlisting">$ cc `pkg-config --cflags --libs libtranslate` example-application.c -o example-application</pre><p>
	</p><pre class="programlisting">/*
 * Copyright (C) 2005 Jean-Yves Lefort
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Jean-Yves Lefort nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include &lt;locale.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;translate.h&gt;

int
main (int argc, char **argv)
{
  GError *err = NULL;
  GSList *services;
  TranslateSession *session;
  char *translation;

  setlocale(LC_ALL, "");	/* use user's locale */

  if (argc != 4)
    {
      g_printerr("Usage: translate FROM TO {TEXT | HTTP_URL | HTTPS_URL}\n");
      exit(1);
    }

  /* initialize libtranslate */
  if (! translate_init(&amp;err))
    {
      g_printerr("Unable to initialize libtranslate: %s\n", err-&gt;message);
      g_error_free(err);
      exit(1);
    }

  /* create a session which will use all the services */
  services = translate_get_services();
  session = translate_session_new(services);
  g_slist_foreach(services, (GFunc) g_object_unref, NULL);
  g_slist_free(services);

  /* translate text or web page, depending on the string given */
  translation = (g_str_has_prefix(argv[3], "http://")
		 || g_str_has_prefix(argv[3], "https://"))
    ? translate_session_translate_web_page(session, argv[3], argv[1], argv[2],
					   NULL, NULL, &amp;err)
    : translate_session_translate_text(session, argv[3], argv[1], argv[2],
				       NULL, NULL, &amp;err);

  /* handle failure */
  if (! translation)
    {
      g_printerr("Unable to translate: %s\n", err-&gt;message);
      g_error_free(err);
      exit(1);
    }

  /* success, print the translation, cleanup and exit */
  g_print("%s\n", translation);
  g_free(translation);
  g_object_unref(session);

  return 0;
}
</pre></div></div></div><table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="compiling-modules.html"><b>&lt;&lt; Compiling libtranslate Modules</b></a></td><td align="right"><a accesskey="n" href="ch02s02.html"><b>Implementing Translation Services &gt;&gt;</b></a></td></tr></table></body></html>

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