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/*
This file is part of libextractor.
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2009 Vidyut Samanta and Christian Grothoff
libextractor is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
libextractor is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libextractor; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file main/extractor_print.c
* @brief convenience functions for printing meta data
* @author Christian Grothoff
*/
#include "platform.h"
#include "extractor.h"
#include "extractor_logging.h"
#if HAVE_ICONV
#include "iconv.c"
#endif
/**
* Simple EXTRACTOR_MetaDataProcessor implementation that simply
* prints the extracted meta data to the given file. Only prints
* those keywords that are in UTF-8 format.
*
* @param handle the file to write to (stdout, stderr), must NOT be NULL,
* must be of type "FILE *".
* @param plugin_name name of the plugin that produced this value
* @param type libextractor-type describing the meta data
* @param format basic format information about data
* @param data_mime_type mime-type of data (not of the original file);
* can be NULL (if mime-type is not known)
* @param data actual meta-data found
* @param data_len number of bytes in data
* @return non-zero if printing failed, otherwise 0.
*/
int
EXTRACTOR_meta_data_print (void *handle,
const char *plugin_name,
enum EXTRACTOR_MetaType type,
enum EXTRACTOR_MetaFormat format,
const char *data_mime_type,
const char *data,
size_t data_len)
{
#if HAVE_ICONV
iconv_t cd;
#endif
char *buf;
int ret;
const char *mt;
if (EXTRACTOR_METAFORMAT_UTF8 != format)
return 0;
#if HAVE_ICONV
cd = iconv_open (nl_langinfo (CODESET),
"UTF-8");
if (((iconv_t) -1) == cd)
{
LOG_STRERROR ("iconv_open");
return 1;
}
buf = iconv_helper (cd, data, data_len);
if (NULL == buf)
{
LOG_STRERROR ("iconv_helper");
ret = -1;
}
else
{
mt = EXTRACTOR_metatype_to_string (type);
ret = fprintf (handle,
"%s - %s\n",
(NULL == mt)
? dgettext ("libextractor", gettext_noop ("unknown"))
: dgettext ("libextractor", mt),
buf);
free (buf);
}
iconv_close (cd);
#else
ret = fprintf (handle,
"%s - %.*s\n",
(NULL == mt)
? dgettext ("libextractor", gettext_noop ("unknown"))
: dgettext ("libextractor", mt),
(int) data_len,
data);
#endif
return (ret < 0) ? 1 : 0;
}
/* end of extractor_print.c */
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