| libtranslate Reference Manual |
|---|
Table of Contents
To translate text or web pages, you need to initialize libtranslate with a call to translate_init(), create a new session using translate_session_new(), and call the appropriate translation function, translate_session_translate_text() or translate_session_translate_web_page().
Example 1. A Simple Command-Line Translator
The following example demonstrates how to use libtranslate for creating a simple command-line text and web page translator.
The source code of this example is available in the libtranslate source distribution (docs/reference/example-application.c), and is reproduced below. On UNIX, compile it as follows:
$ cc `pkg-config --cflags --libs libtranslate` example-application.c -o example-application
/*
* 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 <locale.h>
#include <stdlib.h>
#include <translate.h>
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(&err))
{
g_printerr("Unable to initialize libtranslate: %s\n", err->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, &err)
: translate_session_translate_text(session, argv[3], argv[1], argv[2],
NULL, NULL, &err);
/* handle failure */
if (! translation)
{
g_printerr("Unable to translate: %s\n", err->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;
}
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