/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006, 2010, 2011 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
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
-#include <language/data-io/file-handle.h>
-#include <libpspp/message.h>
+
+#include <limits.h>
#include <errno.h>
#include <stdlib.h>
-#include <libpspp/alloc.h>
-#include <data/file-name.h>
-#include <language/command.h>
-#include <language/lexer/lexer.h>
-#include <libpspp/assertion.h>
-#include <libpspp/message.h>
-#include <libpspp/magic.h>
-#include <libpspp/str.h>
-#include <data/variable.h>
-#include <data/file-handle-def.h>
+
+#include "data/file-name.h"
+#include "language/command.h"
+#include "language/data-io/file-handle.h"
+#include "language/lexer/lexer.h"
+#include "libpspp/assertion.h"
+#include "libpspp/message.h"
+#include "libpspp/str.h"
+#include "data/variable.h"
+#include "data/file-handle-def.h"
+
+#include "gl/xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
name=string;
lrecl=integer;
tabwidth=integer "x>=0" "%s must be nonnegative";
- mode=mode:!character/image/scratch.
+ mode=mode:!character/binary/image/360/scratch;
+ recform=recform:fixed/f/variable/v/spanned/vs.
*/
/* (declarations) */
/* (functions) */
int
cmd_file_handle (struct lexer *lexer, struct dataset *ds)
{
- char handle_name[LONG_NAME_LEN + 1];
- struct fh_properties properties = *fh_default_properties ();
-
struct cmd_file_handle cmd;
struct file_handle *handle;
+ char *handle_name;
if (!lex_force_id (lexer))
- return CMD_CASCADING_FAILURE;
- str_copy_trunc (handle_name, sizeof handle_name, lex_tokid (lexer));
+ goto error;
+ handle_name = xstrdup (lex_tokcstr (lexer));
handle = fh_from_id (handle_name);
if (handle != NULL)
msg (SE, _("File handle %s is already defined. "
"Use CLOSE FILE HANDLE before redefining a file handle."),
handle_name);
- return CMD_CASCADING_FAILURE;
+ goto error;
}
lex_get (lexer);
- if (!lex_force_match (lexer, '/'))
- return CMD_CASCADING_FAILURE;
+ if (!lex_force_match (lexer, T_SLASH))
+ goto error_free_handle_name;
if (!parse_file_handle (lexer, ds, &cmd, NULL))
- return CMD_CASCADING_FAILURE;
+ goto error_free_handle_name;
if (lex_end_of_command (lexer) != CMD_SUCCESS)
- goto lossage;
+ goto error_free_cmd;
- if (cmd.s_name == NULL && cmd.mode != FH_SCRATCH)
+ if (cmd.mode != FH_SCRATCH)
{
- lex_sbc_missing (lexer, "NAME");
- goto lossage;
- }
+ struct fh_properties properties = *fh_default_properties ();
- switch (cmd.mode)
- {
- case FH_CHARACTER:
- properties.mode = FH_MODE_TEXT;
- if (cmd.sbc_tabwidth)
- properties.tab_width = cmd.n_tabwidth[0];
- break;
- case FH_IMAGE:
- properties.mode = FH_MODE_BINARY;
- if (cmd.n_lrecl[0] == NOT_LONG)
- msg (SE, _("Fixed-length records were specified on /RECFORM, but "
- "record length was not specified on /LRECL. "
- "Assuming %u-character records."),
- (unsigned int) properties.record_width);
- else if (cmd.n_lrecl[0] < 1)
- msg (SE, _("Record length (%ld) must be at least one byte. "
- "Assuming %u-character records."),
- cmd.n_lrecl[0], (unsigned int) properties.record_width);
- else
- properties.record_width = cmd.n_lrecl[0];
- break;
- default:
- NOT_REACHED ();
- }
+ if (cmd.s_name == NULL)
+ {
+ lex_sbc_missing (lexer, "NAME");
+ goto error_free_cmd;
+ }
- if (cmd.mode != FH_SCRATCH)
- fh_create_file (handle_name, cmd.s_name, &properties);
+ switch (cmd.mode)
+ {
+ case FH_CHARACTER:
+ properties.mode = FH_MODE_TEXT;
+ if (cmd.sbc_tabwidth)
+ properties.tab_width = cmd.n_tabwidth[0];
+ break;
+ case FH_IMAGE:
+ properties.mode = FH_MODE_FIXED;
+ break;
+ case FH_BINARY:
+ properties.mode = FH_MODE_VARIABLE;
+ break;
+ case FH_360:
+ properties.encoding = "EBCDIC-US";
+ if (cmd.recform == FH_FIXED || cmd.recform == FH_F)
+ properties.mode = FH_MODE_FIXED;
+ else if (cmd.recform == FH_VARIABLE || cmd.recform == FH_V)
+ {
+ properties.mode = FH_MODE_360_VARIABLE;
+ properties.record_width = 8192;
+ }
+ else if (cmd.recform == FH_SPANNED || cmd.recform == FH_VS)
+ {
+ properties.mode = FH_MODE_360_SPANNED;
+ properties.record_width = 8192;
+ }
+ else
+ {
+ msg (SE, _("RECFORM must be specified with MODE=360."));
+ goto error_free_cmd;
+ }
+ break;
+ default:
+ NOT_REACHED ();
+ }
+
+ if (properties.mode == FH_MODE_FIXED || cmd.n_lrecl[0] != LONG_MIN)
+ {
+ if (cmd.n_lrecl[0] == LONG_MIN)
+ msg (SE, _("The specified file mode requires LRECL. "
+ "Assuming %zu-character records."),
+ properties.record_width);
+ else if (cmd.n_lrecl[0] < 1 || cmd.n_lrecl[0] >= (1UL << 31))
+ msg (SE, _("Record length (%ld) must be between 1 and %lu bytes. "
+ "Assuming %d-character records."),
+ cmd.n_lrecl[0], (1UL << 31) - 1, properties.record_width);
+ else
+ properties.record_width = cmd.n_lrecl[0];
+ }
+
+ fh_create_file (handle_name, cmd.s_name, &properties);
+ }
else
fh_create_scratch (handle_name);
free_file_handle (&cmd);
return CMD_SUCCESS;
- lossage:
+error_free_cmd:
free_file_handle (&cmd);
+error_free_handle_name:
+ free (handle_name);
+error:
return CMD_CASCADING_FAILURE;
}
if (!lex_force_id (lexer))
return CMD_CASCADING_FAILURE;
- handle = fh_from_id (lex_tokid (lexer));
+ handle = fh_from_id (lex_tokcstr (lexer));
if (handle == NULL)
return CMD_CASCADING_FAILURE;
- fh_free (handle);
-
+ fh_unname (handle);
return CMD_SUCCESS;
}
/* Parses a file handle name, which may be a file name as a string
or a file handle name as an identifier. The allowed types of
file handle are restricted to those in REFERENT_MASK. Returns
- the file handle when successful, a null pointer on failure. */
+ the file handle when successful, a null pointer on failure.
+
+ The caller is responsible for fh_unref()'ing the returned
+ file handle when it is no longer needed. */
struct file_handle *
fh_parse (struct lexer *lexer, enum fh_referent referent_mask)
{
handle = fh_inline_file ();
else
{
- if (lex_token (lexer) != T_ID && lex_token (lexer) != T_STRING)
+ if (lex_token (lexer) != T_ID && !lex_is_string (lexer))
{
lex_error (lexer, _("expecting a file name or handle name"));
return NULL;
handle = NULL;
if (lex_token (lexer) == T_ID)
- handle = fh_from_id (lex_tokid (lexer));
- if (handle == NULL)
- handle = fh_from_file_name (ds_cstr (lex_tokstr (lexer)));
+ handle = fh_from_id (lex_tokcstr (lexer));
if (handle == NULL)
{
- if (lex_token (lexer) != T_ID || lex_tokid (lexer)[0] != '#' || get_syntax () != ENHANCED)
- handle = fh_create_file (NULL, ds_cstr (lex_tokstr (lexer)),
+ if (lex_token (lexer) != T_ID || lex_tokcstr (lexer)[0] != '#'
+ || settings_get_syntax () != ENHANCED)
+ handle = fh_create_file (NULL, lex_tokcstr (lexer),
fh_default_properties ());
else
- handle = fh_create_scratch (lex_tokid (lexer));
+ handle = fh_create_scratch (lex_tokcstr (lexer));
}
lex_get (lexer);
}
{
msg (SE, _("Handle for %s not allowed here."),
referent_name (fh_get_referent (handle)));
+ fh_unref (handle);
return NULL;
}
projects / pspp-builds.git / blobdiff