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/* -*-c-*- -------------- mix_file.c :
* Implementation of the functions declared in mix_file.h
* ------------------------------------------------------------------
* Copyright (C) 2000, 2001, 2007 Free Software Foundation, Inc.
*
* 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 3 of the License, 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.
*
*/
#include <string.h>
#include "xmix_io.h"
#include "mix_file.h"
const gchar *MIX_SRC_DEFEXT = ".mixal",
*MIX_LIST_DEFEXT = ".mls", *MIX_CODE_DEFEXT = ".mix";
/* file names completions */
#define needs_completion_(name,defext) \
( strcmp(name + strlen(name) - strlen(defext), defext) != 0 )
#define add_completion_(name, defext) \
g_strconcat(name, defext, NULL)
/* The actual definition of mix_file_t */
struct mix_file_t
{
mix_iochannel_t parent;
gchar *base_name;
gchar *ext;
};
/* Creation/destruction of files */
static mix_file_t *
open_file_(const gchar *name, mix_fmode_t mode)
{
mix_file_t *result;
FILE *file;
const gchar *fmode = fmode_to_type_ (mode);
/* if the read/write file already exists, open in r+ mode */
if (mode == mix_io_RDWRT && (file = fopen (name, "r")))
{
fmode = "r+";
fclose (file);
}
result = g_new(mix_file_t, 1);
file = fopen(name, fmode);
if ( file == NULL ) {
g_free (result);
return NULL;
}
io_init_from_file_(MIX_IOCHANNEL(result), file);
return result;
}
mix_file_t *
mix_file_new(const gchar *name, mix_fmode_t mode)
{
mix_file_t *result;
gchar *bname;
if ( name == NULL ) return NULL;
bname = g_strdup(name);
if ( bname == NULL ) return NULL;
result = open_file_(name, mode);
if ( result == NULL )
{
g_free(bname);
return NULL;
}
result->base_name = bname;
result->ext = NULL;
return result;
}
/* creates a file adding to its name the defext if missing */
mix_file_t *
mix_file_new_with_def_ext(const gchar *name, mix_fmode_t mode,
const gchar *defext)
{
const gchar *real_name;
mix_file_t *result;
if ( name == NULL ) return NULL;
if ( defext == NULL ) return mix_file_new(name, mode);
real_name = needs_completion_(name, defext) ?
add_completion_(name, defext) : name;
result = open_file_(real_name, mode);
if ( real_name != name ) g_free((void *)real_name);
if ( result == NULL ) return NULL;
result->ext = g_strdup(defext);
if ( needs_completion_(name, defext) )
result->base_name = g_strdup(name);
else
result->base_name = g_strndup(name, strlen(name) - strlen(defext));
if ( result->ext == NULL || result->base_name == NULL )
{
mix_file_delete(result);
return NULL;
}
return result;
}
void
mix_file_delete(mix_file_t *file)
{
g_return_if_fail(file != NULL);
io_close_(MIX_IOCHANNEL(file));
if (file->base_name) g_free(file->base_name);
if (file->ext) g_free(file->ext);
g_free(file);
}
/* convert to a standard FILE */
extern FILE *
mix_file_to_FILE(const mix_file_t *file)
{
if ( file == NULL ) return NULL;
return io_get_FILE_(file);
}
/* complete a name with an extension, if needed */
gchar *
mix_file_complete_name (const gchar *name, const gchar *extension)
{
if (!name) return NULL;
if (!extension || !needs_completion_ (name, extension))
return g_strdup (name);
return add_completion_ (name, extension);
}
/* Get the base name and extension of file */
const gchar *
mix_file_base_name(const mix_file_t *file)
{
g_return_val_if_fail(file != NULL, NULL);
return file->base_name;
}
const gchar *
mix_file_extension(const mix_file_t *file)
{
g_return_val_if_fail(file != NULL, NULL);
return file->ext;
}
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