locale.c

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/*!
 * \file lib/gis/locale.c
 *
 * \brief GIS Library - Functions to handle locale.
 *
 * SPDX-FileCopyrightText: 2001-2014 GRASS Development Team
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * \author GRASS Development Team
 *
 * \date 2004-2008
 */
 
#include <grass/config.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <grass/glocale.h>
#include <grass/gis.h>
 
#if defined(HAVE_LIBINTL_H) && defined(USE_NLS)
#define NO_NLS_UNUSED
#else
#define NO_NLS_UNUSED G_UNUSED
#endif
 
void G_init_locale(void)
{
    static int initialized;
 
    if (G_is_initialized(&initialized))
        return;
 
    setlocale(LC_CTYPE, "");
 
#if defined(HAVE_LIBINTL_H) && defined(USE_NLS)
#ifdef LC_MESSAGES
    setlocale(LC_MESSAGES, "");
#endif
    /* Not using G_locale_dir(): its G_fatal_error() would translate the
       message and re-enter G_init_locale(), recursing without bound. */
    const char *localedir = getenv("GRASS_LOCALEDIR");
 
    if (localedir && *localedir) {
        bindtextdomain("grasslibs", localedir);
        bindtextdomain("grassmods", localedir);
    }
#endif
 
    G_initialize_done(&initialized);
}
 
/**
 * \brief Gets localized text.
 *
 * \param[in] package
 * \param[in] msgid
 * \retval char * Pointer to string
 */
char *G_gettext(const char *package NO_NLS_UNUSED, const char *msgid)
{
#if defined(HAVE_LIBINTL_H) && defined(USE_NLS)
    G_init_locale();
 
    return dgettext(package, msgid);
#else
    return (char *)msgid;
#endif
}
 
/**
 * \brief Gets localized text with correct plural forms.
 *
 * \param[in] package
 * \param[in] msgids A singular version of string
 * \param[in] msgidp A plural version of string
 * \param[in] n The number
 * \retval char * Pointer to string
 */
char *G_ngettext(const char *package NO_NLS_UNUSED, const char *msgids,
                 const char *msgidp, unsigned long int n)
{
#if defined(HAVE_LIBINTL_H) && defined(USE_NLS)
    G_init_locale();
 
    return dngettext(package, msgids, msgidp, n);
#else
    return n == 1 ? (char *)msgids : (char *)msgidp;
#endif
}