gambas-source-code/main/gbx/gbx_subr_file.c
Benoît Minisini abbcd6c930 [DEVELOPMENT ENVIRONMENT]
* NEW: Draw project details in gray.

[INTERPRETER]
* BUG: Fix the management of standard input, standard output and standard 
  error streams.
  
[GB.DRAW]
* BUG: Draw.Begin() now correctly raises an error if the device is a static
  class that is not drawable. This bug was fixed by using "Draw" for the 
  interface name of drawable objects and "StaticDraw" for the interface 
  name of drawable classes like Printer.

[GB.FORM]
* NEW: File dialogs now remember the last used directories in the directory
  combo-box.

[GB.GTK]
* NEW: Font strikeout and underline are used when drawing Buttons.

[GB.QT.EXT]
* BUG: Uses "StaticDraw" to specify the drawing interface of the Printer 
  class.


git-svn-id: svn://localhost/gambas/trunk@1446 867c0c6c-44f3-4631-809d-bfa615b0a4ec
2008-07-10 21:49:11 +00:00

802 lines
13 KiB
C
Executable file

/***************************************************************************
subr_file.c
The file and input/output subroutines
(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
***************************************************************************/
#include "gb_common.h"
#include "gb_common_buffer.h"
#include "gbx_subr.h"
#include "gb_file.h"
#include "gb_list.h"
#include "gbx_stream.h"
#include "gbx_archive.h"
#include "gbx_api.h"
#include "gbx_local.h"
#include "gbx_regexp.h"
#include "gbx_string.h"
#include "gbx_c_file.h"
#include "gbx_print.h"
typedef
struct _stream {
struct _stream *next;
CSTREAM *stream;
}
CSTREAM_NODE;
static void *_default_in = NULL;
static void *_default_out = NULL;
static void *_default_err = NULL;
static GB_ARRAY _result;
static char *_pattern;
static int _len_pattern;
static int _ignore;
static STREAM *_stream;
static void push_stream(void **list, CSTREAM *stream)
{
CSTREAM_NODE *slot;
ALLOC(&slot, sizeof(CSTREAM_NODE), "push_stream");
slot->stream = stream;
//OBJECT_REF(stream, "push_stream");
slot->next = *list;
*list = slot;
}
static CSTREAM *pop_stream(void **list)
{
CSTREAM *stream;
CSTREAM_NODE *slot;
if (!*list)
return NULL;
stream = ((CSTREAM_NODE *)*list)->stream;
slot = *list;
*list = ((CSTREAM_NODE *)*list)->next;
FREE(&slot, "pop_stream");
return stream;
}
static STREAM *get_default(intptr_t val)
{
static STREAM_MEMORY memory_stream;
STREAM *stream;
switch(val)
{
case 0:
if (_default_in)
stream = CSTREAM_stream(((CSTREAM_NODE *)_default_in)->stream);
else
stream = CSTREAM_stream(CFILE_in);
break;
case 1:
if (_default_out)
stream = CSTREAM_stream(((CSTREAM_NODE *)_default_out)->stream);
else
stream = CSTREAM_stream(CFILE_out);
break;
case 2:
if (_default_err)
stream = CSTREAM_stream(((CSTREAM_NODE *)_default_err)->stream);
else
stream = CSTREAM_stream(CFILE_err);
break;
default:
memory_stream.common.type = &STREAM_memory;
memory_stream.addr = (void *)val;
memory_stream.pos = 0;
stream = (STREAM *)&memory_stream;
break;
}
return stream;
}
static STREAM *get_stream(VALUE *value, boolean can_default)
{
STREAM *stream;
if (TYPE_is_integer(value->type) && can_default)
stream = get_default((intptr_t)value->_integer.value);
#ifdef OS_64BITS
else if (TYPE_is_long(value->type) && can_default)
stream = get_default((intptr_t)value->_long.value);
#endif
else
{
if (VALUE_is_null(value))
THROW(E_NULL);
if (TYPE_is_object(value->type) && OBJECT_class(value->_object.object)->is_stream)
stream = CSTREAM_stream(value->_object.object);
else
{
VALUE_conv(value, (TYPE)CLASS_Stream);
stream = NULL;
}
}
if (STREAM_is_closed(stream))
THROW(E_CLOSED);
return stream;
}
static char *get_path(VALUE *param)
{
char *name;
int len;
SUBR_get_string_len(param, &name, &len);
return STRING_conv_file_name(name, len);
}
void SUBR_open(void)
{
CFILE *file;
STREAM stream;
int mode;
SUBR_ENTER_PARAM(2);
SUBR_check_integer(&PARAM[1]);
mode = PARAM[1]._integer.value;
STREAM_open(&stream, get_path(PARAM), mode);
file = CFILE_create(&stream, mode);
OBJECT_put(RETURN, file);
SUBR_LEAVE();
}
void SUBR_close(void)
{
SUBR_ENTER_PARAM(1);
STREAM_close(get_stream(PARAM, FALSE));
SUBR_LEAVE_VOID();
}
void SUBR_flush(void)
{
SUBR_ENTER_PARAM(1);
STREAM_flush(get_stream(PARAM, TRUE));
SUBR_LEAVE_VOID();
}
/*static void print_it(char *addr, long len)
{
STREAM_write(_stream, addr, len);
}*/
void SUBR_print(void)
{
int i;
char *addr;
int len;
SUBR_ENTER();
if (NPARAM < 1)
THROW(E_NEPARAM);
_stream = get_stream(PARAM, TRUE);
//PRINT_init(print_it, FALSE);
for (i = 1; i < NPARAM; i++)
{
PARAM++;
//PRINT_value(PARAM);
VALUE_to_string(PARAM, &addr, &len);
if (len == 1 && *addr == '\n')
STREAM_write_eol(_stream);
else
STREAM_write(_stream, addr, len);
}
SUBR_LEAVE_VOID();
}
void SUBR_linput(void)
{
STREAM *stream;
char *addr;
SUBR_ENTER_PARAM(1);
stream = get_stream(PARAM, TRUE);
STREAM_line_input(stream, &addr);
RETURN->type = T_STRING;
RETURN->_string.addr = addr;
RETURN->_string.start = 0;
RETURN->_string.len = STRING_length(addr);
SUBR_LEAVE();
}
void SUBR_input(void)
{
static STREAM *stream = NULL;
char *addr;
SUBR_ENTER();
if (NPARAM == 1)
stream = get_stream(PARAM, TRUE);
if (stream)
{
STREAM_input(stream, &addr);
VALUE_from_string(RETURN, addr, STRING_length(addr));
if (RETURN->type == T_NULL)
{
RETURN->type = T_STRING;
RETURN->_string.addr = addr;
RETURN->_string.start = 0;
RETURN->_string.len = STRING_length(addr);
}
}
else
RETURN->type = T_NULL;
SUBR_LEAVE();
}
void SUBR_eof(void)
{
STREAM *stream;
SUBR_ENTER();
if (NPARAM == 1)
stream = get_stream(PARAM, FALSE);
else
stream = get_default(0);
//fprintf(stderr, "Eof(stream) = %d\n", STREAM_eof(stream));
RETURN->type = T_BOOLEAN;
RETURN->_boolean.value = STREAM_eof(stream) ? -1 : 0;
SUBR_LEAVE();
}
void SUBR_lof(void)
{
STREAM *stream;
SUBR_ENTER();
if (NPARAM == 1)
stream = get_stream(PARAM, FALSE);
else
stream = get_default(0);
RETURN->type = T_LONG;
STREAM_lof(stream, &(RETURN->_long.value));
SUBR_LEAVE();
}
void SUBR_seek(void)
{
STREAM *stream;
int64_t pos;
int64_t len;
int whence = SEEK_SET;
SUBR_ENTER();
stream = get_stream(PARAM, FALSE);
if (NPARAM >= 2)
{
VALUE_conv(&PARAM[1], T_LONG);
pos = PARAM[1]._long.value;
if (NPARAM == 3)
{
VALUE_conv(&PARAM[2], T_INTEGER);
whence = PARAM[2]._integer.value;
if (whence != SEEK_SET && whence != SEEK_CUR && whence != SEEK_END)
THROW(E_ARG);
}
else
{
if (pos < 0)
{
STREAM_lof(stream, &len);
pos += len;
}
}
STREAM_seek(stream, pos, (int)whence);
RETURN->type = T_VOID;
}
else
{
RETURN->type = T_LONG;
RETURN->_long.value = STREAM_tell(stream);
}
SUBR_LEAVE();
}
void SUBR_read(void)
{
STREAM *stream;
int len;
bool do_not = FALSE;
SUBR_ENTER();
stream = get_stream(PARAM, TRUE);
if (NPARAM == 3)
{
VALUE_conv(&PARAM[2], T_INTEGER);
len = PARAM[2]._integer.value;
if (len == 0)
do_not = TRUE;
}
else
len = 0;
if (do_not)
RETURN->type = T_NULL;
else
STREAM_read_type(stream, PARAM[1].type, RETURN, len);
SUBR_LEAVE();
}
void SUBR_write(void)
{
STREAM *stream;
int len;
SUBR_ENTER();
stream = get_stream(PARAM, TRUE);
if (NPARAM == 3)
{
VALUE_conv(&PARAM[2], T_INTEGER);
len = PARAM[2]._integer.value;
}
else
len = 0;
STREAM_write_type(stream, PARAM[1].type, &PARAM[1], len);
SUBR_LEAVE_VOID();
}
void SUBR_stat(void)
{
const char *path;
CSTAT *cstat;
FILE_STAT info;
bool follow = FALSE;
SUBR_ENTER();
path = get_path(PARAM);
if (NPARAM == 2)
{
VALUE_conv(&PARAM[1], T_BOOLEAN);
follow = PARAM[1]._boolean.value;
}
FILE_stat(path, &info, follow);
OBJECT_new((void **)(void *)&cstat, CLASS_Stat, NULL, NULL);
OBJECT_UNREF_KEEP(&cstat, "SUBR_stat");
cstat->info = info;
STRING_new(&cstat->path, path, 0);
OBJECT_put(RETURN, cstat);
SUBR_LEAVE();
}
void SUBR_exist(void)
{
bool exist;
const char *path;
SUBR_ENTER_PARAM(1);
path = get_path(PARAM);
exist = FILE_exist(path);
RETURN->type = T_BOOLEAN;
RETURN->_integer.value = exist ? -1 : 0;
SUBR_LEAVE();
}
void SUBR_dir()
{
GB_ARRAY array;
const char *path;
char *pattern;
int len_pattern;
char *str;
int attr = 0;
SUBR_ENTER();
path = get_path(PARAM);
if (NPARAM >= 2)
{
pattern = SUBR_get_string(&PARAM[1]);
if (NPARAM == 3)
attr = SUBR_get_integer(&PARAM[2]);
}
else
pattern = NULL;
FILE_dir_first(path, pattern, attr);
GB_ArrayNew(&array, T_STRING, 0);
while (!FILE_dir_next(&pattern, &len_pattern))
{
if (!LOCAL_is_UTF8)
{
if (STRING_conv(&str, pattern, len_pattern, LOCAL_encoding, "UTF-8", FALSE))
STRING_new(&str, pattern, len_pattern);
else
STRING_ref(str);
}
else
STRING_new(&str, pattern, len_pattern);
*((char **)GB_ArrayAdd(array)) = str;
}
RETURN->_object.class = OBJECT_class(array);
RETURN->_object.object = array;
SUBR_LEAVE();
}
static void found_file(const char *path)
{
char *str;
int len;
path += _ignore;
len = strlen(path);
if (_pattern && !REGEXP_match(_pattern, _len_pattern, path, len))
return;
if (!LOCAL_is_UTF8)
{
if (STRING_conv(&str, path, len, LOCAL_encoding, "UTF-8", FALSE))
STRING_new(&str, path, len);
else
STRING_ref(str);
}
else
STRING_new(&str, path, len);
*((char **)GB_ArrayAdd(_result)) = str;
}
void SUBR_rdir()
{
const char *path;
int attr = 0;
SUBR_ENTER();
path = get_path(PARAM);
if (NPARAM >= 2)
{
SUBR_get_string_len(&PARAM[1], &_pattern, &_len_pattern);
if (NPARAM == 3)
attr = SUBR_get_integer(&PARAM[2]);
}
else
_pattern = NULL;
GB_ArrayNew(&_result, T_STRING, 0);
if (!path || *path == 0)
path = ".";
_ignore = strlen(path);
if (_ignore > 0 && path[_ignore - 1] != '/')
_ignore++;
FILE_recursive_dir(path, found_file, NULL, attr);
RETURN->_object.class = OBJECT_class(_result);
RETURN->_object.object = _result;
SUBR_LEAVE();
}
void SUBR_kill(void)
{
SUBR_ENTER_PARAM(1);
FILE_unlink(get_path(PARAM));
SUBR_LEAVE_VOID();
}
void SUBR_mkdir(void)
{
SUBR_ENTER_PARAM(1);
FILE_mkdir(get_path(PARAM));
SUBR_LEAVE_VOID();
}
void SUBR_rmdir(void)
{
SUBR_ENTER_PARAM(1);
FILE_rmdir(get_path(PARAM));
SUBR_LEAVE_VOID();
}
void SUBR_rename(void)
{
SUBR_ENTER_PARAM(2);
FILE_rename(get_path(&PARAM[0]), get_path(&PARAM[1]));
SUBR_LEAVE_VOID();
}
void SUBR_temp(void)
{
char *temp;
int len;
SUBR_ENTER();
if (NPARAM == 0)
temp = FILE_make_temp(&len, NULL);
else
temp = FILE_make_temp(&len, SUBR_get_string(PARAM));
STRING_new_temp_value(RETURN, temp, len);
SUBR_LEAVE();
}
void SUBR_isdir(void)
{
bool isdir;
const char *path;
SUBR_ENTER_PARAM(1);
path = get_path(PARAM);
isdir = FILE_isdir(path);
RETURN->type = T_BOOLEAN;
RETURN->_integer.value = isdir ? -1 : 0;
SUBR_LEAVE();
}
void SUBR_copy(void)
{
SUBR_ENTER_PARAM(2);
FILE_copy(get_path(&PARAM[0]), get_path(&PARAM[1]));
SUBR_LEAVE_VOID();
}
void SUBR_access(void)
{
int access;
SUBR_ENTER();
if (NPARAM == 1)
access = R_OK;
else
{
VALUE_conv(&PARAM[1], T_INTEGER);
access = PARAM[1]._integer.value;
}
RETURN->type = T_BOOLEAN;
RETURN->_integer.value = FILE_access(get_path(PARAM), access) ? -1 : 0;
SUBR_LEAVE();
}
void SUBR_link(void)
{
SUBR_ENTER_PARAM(2);
/* Parameters are NOT inverted ANYMORE! */
FILE_link(get_path(&PARAM[0]), get_path(&PARAM[1]));
SUBR_LEAVE_VOID();
}
void SUBR_lock(void)
{
SUBR_ENTER_PARAM(1);
if (EXEC_code & 0x1F)
{
STREAM_close(get_stream(PARAM, FALSE));
SUBR_LEAVE_VOID();
}
else
{
STREAM stream;
CFILE *file;
const char *path = get_path(PARAM);
if (FILE_is_relative(path))
THROW(E_BADPATH);
STREAM_open(&stream, path, ST_WRITE | ST_CREATE | ST_DIRECT);
STREAM_lock(&stream);
file = CFILE_create(&stream, ST_WRITE | ST_CREATE | ST_DIRECT);
OBJECT_put(RETURN, file);
SUBR_LEAVE();
}
}
void SUBR_inp_out(void)
{
CSTREAM *stream;
void **where;
SUBR_ENTER_PARAM(1);
switch(EXEC_code & 0x1F)
{
case 0: where = &_default_in; break;
case 1: where = &_default_out; break;
default: where = &_default_err; break;
}
if (VALUE_is_null(PARAM))
{
stream = pop_stream(where);
if (stream)
OBJECT_UNREF(&stream, "SUBR_inp_out");
return;
}
VALUE_conv(PARAM, (TYPE)CLASS_Stream);
stream = PARAM->_object.object;
OBJECT_REF(stream, "SUBR_inp_out");
push_stream(where, stream);
SUBR_LEAVE_VOID();
}
static void free_list(void **list)
{
CSTREAM *stream;
for(;;)
{
stream = pop_stream(list);
if (!stream)
return;
OBJECT_UNREF(&stream, "free_list");
}
}
void SUBR_exit_inp_out(void)
{
free_list((void **)&_default_in);
free_list((void **)&_default_out);
free_list((void **)&_default_err);
}
void SUBR_dfree(void)
{
SUBR_ENTER_PARAM(1);;
RETURN->type = T_LONG;
RETURN->_long.value = FILE_free(get_path(PARAM));
SUBR_LEAVE();
}
void SUBR_debug(void)
{
const int NPARAM = 0;
STREAM *stream = get_default(2);
const char *s = DEBUG_get_current_position();
STREAM_write(stream, (void *)s, strlen(s));
STREAM_write(stream, ": ", 2);
SUBR_LEAVE();
}