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/* Localization of proper names.
Copyright (C) 2006 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2006.
This program 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.
This program 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 this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* Specification. */
#include "propername.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_ICONV
# include <iconv.h>
#endif
#include "localcharset.h"
#include "c-strcase.h"
#include "iconvstring.h"
#include "c-strstr.h"
#include "strstr.h"
#include "xalloc.h"
#include "gettext.h"
/* Temporary hack. */
#undef strstr
#define strstr c_strstr
/* Return the localization of NAME. NAME is written in ASCII. */
const char *
proper_name (const char *name)
{
/* See whether there is a translation. */
const char *translation = gettext (name);
if (translation != name)
{
/* See whether the translation contains the original name. */
if (strstr (translation, name) != NULL)
return translation;
else
{
/* Return "TRANSLATION (NAME)". */
char *result =
(char *) xmalloc (strlen (translation) + 2 + strlen (name) + 1 + 1);
sprintf (result, "%s (%s)", translation, name);
return result;
}
}
else
return name;
}
#if HAVE_ICONV
static char *
convert_name (const char *locale_code, const char *name_utf8)
{
/* Open conversion descriptor. */
iconv_t conv_from_utf8 = iconv_open (locale_code, "UTF-8");
if (conv_from_utf8 != (iconv_t)(-1))
{
char *name_converted = NULL;
size_t length;
/* Convert the name to the locale encoding. */
if (iconv_string (conv_from_utf8,
name_utf8, name_utf8 + strlen (name_utf8) + 1,
&name_converted, &length) == 0)
/* Verify that the converted string is terminated. */
if (!(length > 0 && name_converted[length - 1] == '\0'))
abort ();
/* Free the conversion descriptor. */
iconv_close (conv_from_utf8);
return name_converted;
}
else
return NULL;
}
#endif
/* Return the localization of a name whose original writing is not ASCII.
NAME_UTF8 is the real name, written in UTF-8 with octal or hexadecimal
escape sequences. NAME_ASCII is a fallback written only with ASCII
characters. */
const char *
proper_name_utf8 (const char *name_ascii, const char *name_utf8)
{
/* See whether there is a translation. */
const char *translation = gettext (name_ascii);
/* Try to convert NAME_UTF8 to the locale encoding. */
const char *locale_code = locale_charset ();
char *alloc_name_converted = NULL;
char *alloc_name_converted_translit = NULL;
const char *name_converted = NULL;
const char *name_converted_translit = NULL;
const char *name;
if (c_strcasecmp (locale_code, "UTF-8") != 0)
{
#if HAVE_ICONV
/* Avoid glibc-2.1 bug with EUC-KR. */
# if (__GLIBC__ - 0 == 2 && __GLIBC_MINOR__ - 0 <= 1) && !defined _LIBICONV_VERSION
if (strcmp (locale_code, "EUC-KR") != 0)
# endif
{
name_converted = alloc_name_converted =
convert_name (locale_code, name_utf8);
# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2 \
|| _LIBICONV_VERSION >= 0x0105
{
size_t len = strlen (locale_code);
char *locale_code_translit = (char *) xmalloc (len + 10 + 1);
memcpy (locale_code_translit, locale_code, len);
memcpy (locale_code_translit + len, "//TRANSLIT", 10 + 1);
name_converted_translit = alloc_name_converted_translit =
convert_name (locale_code_translit, name_utf8);
free (locale_code_translit);
}
# endif
}
#endif
}
else
{
name_converted = name_utf8;
name_converted_translit = name_utf8;
}
/* The name in locale encoding. */
name = (name_converted != NULL ? name_converted :
name_converted_translit != NULL ? name_converted_translit :
name_ascii);
if (translation != name_ascii)
{
/* See whether the translation contains the original name.
A multibyte-aware strstr() is not absolutely necessary here. */
if (c_strstr (translation, name_ascii) != NULL
|| (name_converted != NULL
&& strstr (translation, name_converted) != NULL)
|| (name_converted_translit != NULL
&& strstr (translation, name_converted_translit) != NULL))
{
if (alloc_name_converted != NULL)
free (alloc_name_converted);
if (alloc_name_converted_translit != NULL)
free (alloc_name_converted_translit);
return translation;
}
else
{
/* Return "TRANSLATION (NAME)". */
char *result =
(char *) xmalloc (strlen (translation) + 2 + strlen (name) + 1 + 1);
sprintf (result, "%s (%s)", translation, name);
if (alloc_name_converted != NULL)
free (alloc_name_converted);
if (alloc_name_converted_translit != NULL)
free (alloc_name_converted_translit);
return result;
}
}
else
{
if (alloc_name_converted != NULL && alloc_name_converted != name)
free (alloc_name_converted);
if (alloc_name_converted_translit != NULL
&& alloc_name_converted_translit != name)
free (alloc_name_converted_translit);
return name;
}
}
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