--- /dev/null
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-2000, 2006, 2010-2013, 2016 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, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include "data/file-handle-def.h"
+
+#include <limits.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "data/file-name.h"
+#include "data/session.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/data-io/file-handle.h"
+#include "language/lexer/lexer.h"
+#include "libpspp/assertion.h"
+#include "libpspp/cast.h"
+#include "libpspp/message.h"
+#include "libpspp/str.h"
+
+#include "gl/xalloc.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+int
+cmd_file_handle (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+ enum cmd_result result = CMD_CASCADING_FAILURE;
+ char *handle_name = NULL;
+ char *file_name = NULL;
+ int lrecl = 0;
+ int tabwidth = -1;
+ enum { MODE_DEFAULT, MODE_CHARACTER, MODE_BINARY, MODE_IMAGE, MODE_360 }
+ mode = MODE_DEFAULT;
+ int ends = -1;
+ enum { RECFORM_FIXED = 1, RECFORM_VARIABLE, RECFORM_SPANNED } recform = 0;
+ char *encoding = NULL;
+
+ if (!lex_force_id (lexer))
+ goto exit;
+
+ handle_name = xstrdup (lex_tokcstr (lexer));
+ if (fh_from_id (handle_name))
+ {
+ msg (SE, _("File handle %s is already defined. "
+ "Use %s before redefining a file handle."),
+ handle_name, "CLOSE FILE HANDLE");
+ goto exit;
+ }
+
+ lex_get (lexer);
+ if (!lex_force_match (lexer, T_SLASH))
+ goto exit;
+
+ while (lex_token (lexer) != T_ENDCMD)
+ {
+ if (lex_match_id (lexer, "NAME"))
+ {
+ if (file_name)
+ {
+ lex_sbc_only_once ("NAME");
+ goto exit;
+ }
+
+ lex_match (lexer, T_EQUALS);
+ if (!lex_force_string (lexer))
+ goto exit;
+ free (file_name);
+ file_name = ss_xstrdup (lex_tokss (lexer));
+ lex_get (lexer);
+ }
+ else if (lex_match_id (lexer, "LRECL"))
+ {
+ if (lrecl)
+ {
+ lex_sbc_only_once ("LRECL");
+ goto exit;
+ }
+
+ lex_match (lexer, T_EQUALS);
+ if (!lex_force_int (lexer))
+ goto exit;
+ lrecl = lex_integer (lexer);
+ lex_get (lexer);
+ }
+ else if (lex_match_id (lexer, "TABWIDTH"))
+ {
+ if (tabwidth >= 0)
+ {
+ lex_sbc_only_once ("TABWIDTH");
+ goto exit;
+ }
+ lex_match (lexer, T_EQUALS);
+
+ if (!lex_force_int (lexer))
+ goto exit;
+ tabwidth = lex_integer (lexer);
+ lex_get (lexer);
+ }
+ else if (lex_match_id (lexer, "MODE"))
+ {
+ if (mode != MODE_DEFAULT)
+ {
+ lex_sbc_only_once ("MODE");
+ goto exit;
+ }
+ lex_match (lexer, T_EQUALS);
+
+ if (lex_match_id (lexer, "CHARACTER"))
+ mode = MODE_CHARACTER;
+ else if (lex_match_id (lexer, "BINARY"))
+ mode = MODE_BINARY;
+ else if (lex_match_id (lexer, "IMAGE"))
+ mode = MODE_IMAGE;
+ else if (lex_match_int (lexer, 360))
+ mode = MODE_360;
+ else
+ {
+ lex_error (lexer, NULL);
+ goto exit;
+ }
+ }
+ else if (lex_match_id (lexer, "ENDS"))
+ {
+ if (ends >= 0)
+ {
+ lex_sbc_only_once ("ENDS");
+ goto exit;
+ }
+ lex_match (lexer, T_EQUALS);
+
+ if (lex_match_id (lexer, "LF"))
+ ends = FH_END_LF;
+ else if (lex_match_id (lexer, "CRLF"))
+ ends = FH_END_CRLF;
+ else
+ {
+ lex_error (lexer, NULL);
+ goto exit;
+ }
+ }
+ else if (lex_match_id (lexer, "RECFORM"))
+ {
+ if (recform)
+ {
+ lex_sbc_only_once ("RECFORM");
+ goto exit;
+ }
+ lex_match (lexer, T_EQUALS);
+ if (lex_match_id (lexer, "FIXED") || lex_match_id (lexer, "F"))
+ recform = RECFORM_FIXED;
+ else if (lex_match_id (lexer, "VARIABLE")
+ || lex_match_id (lexer, "V"))
+ recform = RECFORM_VARIABLE;
+ else if (lex_match_id (lexer, "SPANNED")
+ || lex_match_id (lexer, "VS"))
+ recform = RECFORM_SPANNED;
+ else
+ {
+ lex_error (lexer, NULL);
+ goto exit;
+ }
+ }
+ else if (lex_match_id (lexer, "ENCODING"))
+ {
+ if (encoding)
+ {
+ lex_sbc_only_once ("ENCODING");
+ goto exit;
+ }
+
+ lex_match (lexer, T_EQUALS);
+ if (!lex_force_string (lexer))
+ goto exit;
+ free (encoding);
+ encoding = ss_xstrdup (lex_tokss (lexer));
+ lex_get (lexer);
+ }
+ if (!lex_match (lexer, T_SLASH))
+ break;
+ }
+
+ if (lex_end_of_command (lexer) != CMD_SUCCESS)
+ goto exit;
+
+ struct fh_properties properties = *fh_default_properties ();
+ if (file_name == NULL)
+ {
+ lex_sbc_missing ("NAME");
+ goto exit;
+ }
+
+ switch (mode)
+ {
+ case MODE_DEFAULT:
+ case MODE_CHARACTER:
+ properties.mode = FH_MODE_TEXT;
+ if (tabwidth >= 0)
+ properties.tab_width = tabwidth;
+ if (ends)
+ properties.line_ends = ends;
+ break;
+ case MODE_IMAGE:
+ properties.mode = FH_MODE_FIXED;
+ break;
+ case MODE_BINARY:
+ properties.mode = FH_MODE_VARIABLE;
+ break;
+ case MODE_360:
+ properties.encoding = CONST_CAST (char *, "EBCDIC-US");
+ if (recform == RECFORM_FIXED)
+ properties.mode = FH_MODE_FIXED;
+ else if (recform == RECFORM_VARIABLE)
+ {
+ properties.mode = FH_MODE_360_VARIABLE;
+ properties.record_width = 8192;
+ }
+ else if (recform == RECFORM_SPANNED)
+ {
+ properties.mode = FH_MODE_360_SPANNED;
+ properties.record_width = 8192;
+ }
+ else
+ {
+ msg (SE, _("%s must be specified with %s."), "RECFORM", "MODE=360");
+ goto exit;
+ }
+ break;
+ default:
+ NOT_REACHED ();
+ }
+
+ if (properties.mode == FH_MODE_FIXED || lrecl)
+ {
+ if (!lrecl)
+ msg (SE, _("The specified file mode requires LRECL. "
+ "Assuming %zu-character records."),
+ properties.record_width);
+ else if (lrecl < 1 || lrecl >= (1UL << 31))
+ msg (SE, _("Record length (%d) must be between 1 and %lu bytes. "
+ "Assuming %zu-character records."),
+ lrecl, (1UL << 31) - 1, properties.record_width);
+ else
+ properties.record_width = lrecl;
+ }
+
+ if (encoding)
+ properties.encoding = encoding;
+
+ fh_create_file (handle_name, file_name, lex_get_encoding (lexer),
+ &properties);
+
+ result = CMD_SUCCESS;
+
+exit:
+ free (handle_name);
+ free (file_name);
+ free (encoding);
+ return result;
+}
+
+int
+cmd_close_file_handle (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+ struct file_handle *handle;
+
+ if (!lex_force_id (lexer))
+ return CMD_CASCADING_FAILURE;
+ handle = fh_from_id (lex_tokcstr (lexer));
+ if (handle == NULL)
+ return CMD_CASCADING_FAILURE;
+
+ fh_unname (handle);
+ return CMD_SUCCESS;
+}
+
+/* Returns the name for REFERENT. */
+static const char *
+referent_name (enum fh_referent referent)
+{
+ switch (referent)
+ {
+ case FH_REF_FILE:
+ return _("file");
+ case FH_REF_INLINE:
+ return _("inline file");
+ case FH_REF_DATASET:
+ return _("dataset");
+ default:
+ NOT_REACHED ();
+ }
+}
+
+/* Parses a file handle name:
+
+ - If SESSION is nonnull, then the parsed syntax may be the name of a
+ dataset within SESSION. Dataset names take precedence over file handle
+ names.
+
+ - If REFERENT_MASK includes FH_REF_FILE, the parsed syntax may be a file
+ name as a string or a file handle name as an identifier.
+
+ - If REFERENT_MASK includes FH_REF_INLINE, the parsed syntax may be the
+ identifier INLINE to represent inline data.
+
+ Returns 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,
+ struct session *session)
+{
+ struct file_handle *handle;
+
+ if (session != NULL && lex_token (lexer) == T_ID)
+ {
+ struct dataset *ds;
+
+ ds = session_lookup_dataset (session, lex_tokcstr (lexer));
+ if (ds != NULL)
+ {
+ lex_get (lexer);
+ return fh_create_dataset (ds);
+ }
+ }
+
+ if (lex_match_id (lexer, "INLINE"))
+ handle = fh_inline_file ();
+ else
+ {
+ 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_tokcstr (lexer));
+ if (handle == NULL)
+ handle = fh_create_file (NULL, lex_tokcstr (lexer), lex_get_encoding (lexer),
+ fh_default_properties ());
+ lex_get (lexer);
+ }
+
+ if (!(fh_get_referent (handle) & referent_mask))
+ {
+ msg (SE, _("Handle for %s not allowed here."),
+ referent_name (fh_get_referent (handle)));
+ fh_unref (handle);
+ return NULL;
+ }
+
+ return handle;
+}
+
+/*
+ Local variables:
+ mode: c
+ End:
+*/
+++ /dev/null
-/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006, 2010, 2011, 2012, 2013 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, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-#include "data/file-handle-def.h"
-
-#include <limits.h>
-#include <errno.h>
-#include <stdlib.h>
-
-#include "data/file-name.h"
-#include "data/session.h"
-#include "data/variable.h"
-#include "language/command.h"
-#include "language/data-io/file-handle.h"
-#include "language/lexer/lexer.h"
-#include "libpspp/assertion.h"
-#include "libpspp/cast.h"
-#include "libpspp/message.h"
-#include "libpspp/str.h"
-
-#include "gl/xalloc.h"
-
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-
-/* (headers) */
-
-
-/* (specification)
- "FILE HANDLE" (fh_):
- name=string;
- lrecl=integer;
- tabwidth=integer;
- mode=mode:!character/binary/image/360;
- ends=ends:lf/crlf;
- recform=recform:fixed/f/variable/v/spanned/vs;
- encoding=string.
-*/
-/* (declarations) */
-/* (functions) */
-
-int
-cmd_file_handle (struct lexer *lexer, struct dataset *ds)
-{
- struct fh_properties properties;
- struct cmd_file_handle cmd;
- struct file_handle *handle;
- enum cmd_result result;
- char *handle_name;
-
- result = CMD_CASCADING_FAILURE;
- if (!lex_force_id (lexer))
- goto exit;
-
- handle_name = xstrdup (lex_tokcstr (lexer));
- handle = fh_from_id (handle_name);
- if (handle != NULL)
- {
- msg (SE, _("File handle %s is already defined. "
- "Use %s before redefining a file handle."),
- handle_name, "CLOSE FILE HANDLE");
- goto exit_free_handle_name;
- }
-
- lex_get (lexer);
- if (!lex_force_match (lexer, T_SLASH))
- goto exit_free_handle_name;
-
- if (!parse_file_handle (lexer, ds, &cmd, NULL))
- goto exit_free_handle_name;
-
- if (lex_end_of_command (lexer) != CMD_SUCCESS)
- goto exit_free_cmd;
-
- properties = *fh_default_properties ();
- if (cmd.s_name == NULL)
- {
- lex_sbc_missing ("NAME");
- goto exit_free_cmd;
- }
-
- switch (cmd.mode)
- {
- case FH_CHARACTER:
- properties.mode = FH_MODE_TEXT;
- if (cmd.sbc_tabwidth)
- {
- if (cmd.n_tabwidth[0] >= 0)
- properties.tab_width = cmd.n_tabwidth[0];
- else
- msg (SE, _("%s must not be negative."), "TABWIDTH");
- }
- if (cmd.ends == FH_LF)
- properties.line_ends = FH_END_LF;
- else if (cmd.ends == FH_CRLF)
- properties.line_ends = FH_END_CRLF;
- break;
- case FH_IMAGE:
- properties.mode = FH_MODE_FIXED;
- break;
- case FH_BINARY:
- properties.mode = FH_MODE_VARIABLE;
- break;
- case FH_360:
- properties.encoding = CONST_CAST (char *, "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, _("%s must be specified with %s."), "RECFORM", "MODE=360");
- goto exit_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 %zu-character records."),
- cmd.n_lrecl[0], (1UL << 31) - 1, properties.record_width);
- else
- properties.record_width = cmd.n_lrecl[0];
- }
-
- if (cmd.s_encoding != NULL)
- properties.encoding = cmd.s_encoding;
-
- fh_create_file (handle_name, cmd.s_name, lex_get_encoding (lexer), &properties);
-
- result = CMD_SUCCESS;
-
-exit_free_cmd:
- free_file_handle (&cmd);
-exit_free_handle_name:
- free (handle_name);
-exit:
- return result;
-}
-
-int
-cmd_close_file_handle (struct lexer *lexer, struct dataset *ds UNUSED)
-{
- struct file_handle *handle;
-
- if (!lex_force_id (lexer))
- return CMD_CASCADING_FAILURE;
- handle = fh_from_id (lex_tokcstr (lexer));
- if (handle == NULL)
- return CMD_CASCADING_FAILURE;
-
- fh_unname (handle);
- return CMD_SUCCESS;
-}
-
-/* Returns the name for REFERENT. */
-static const char *
-referent_name (enum fh_referent referent)
-{
- switch (referent)
- {
- case FH_REF_FILE:
- return _("file");
- case FH_REF_INLINE:
- return _("inline file");
- case FH_REF_DATASET:
- return _("dataset");
- default:
- NOT_REACHED ();
- }
-}
-
-/* Parses a file handle name:
-
- - If SESSION is nonnull, then the parsed syntax may be the name of a
- dataset within SESSION. Dataset names take precedence over file handle
- names.
-
- - If REFERENT_MASK includes FH_REF_FILE, the parsed syntax may be a file
- name as a string or a file handle name as an identifier.
-
- - If REFERENT_MASK includes FH_REF_INLINE, the parsed syntax may be the
- identifier INLINE to represent inline data.
-
- Returns 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,
- struct session *session)
-{
- struct file_handle *handle;
-
- if (session != NULL && lex_token (lexer) == T_ID)
- {
- struct dataset *ds;
-
- ds = session_lookup_dataset (session, lex_tokcstr (lexer));
- if (ds != NULL)
- {
- lex_get (lexer);
- return fh_create_dataset (ds);
- }
- }
-
- if (lex_match_id (lexer, "INLINE"))
- handle = fh_inline_file ();
- else
- {
- 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_tokcstr (lexer));
- if (handle == NULL)
- handle = fh_create_file (NULL, lex_tokcstr (lexer), lex_get_encoding (lexer),
- fh_default_properties ());
- lex_get (lexer);
- }
-
- if (!(fh_get_referent (handle) & referent_mask))
- {
- msg (SE, _("Handle for %s not allowed here."),
- referent_name (fh_get_referent (handle)));
- fh_unref (handle);
- return NULL;
- }
-
- return handle;
-}
-
-/*
- Local variables:
- mode: c
- End:
-*/
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