lexer: Reimplement for better testability and internationalization.

[pspp-builds.git] / src / language / control / temporary.c

diff --git a/src/language/control/temporary.c b/src/language/control/temporary.c
index c4b2532daee73e6dda0f382eb9d5d47b2e0869ce..b6a5cc9878143a267ffb0cdf764b86bf1349a6b9 100644 (file)
--- a/src/language/control/temporary.c
+++ b/src/language/control/temporary.c
@@ -1,83 +1,48 @@
-/* PSPP - computes sample statistics.
-   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
-   Written by Ben Pfaff <blp@gnu.org>.
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 1997-9, 2000, 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 the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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.
+   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. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include <config.h>
-#include <libpspp/message.h>
+
 #include <stddef.h>
 #include <stdlib.h>
-#include <libpspp/alloc.h>
-#include <language/command.h>
-#include <data/dictionary.h>
-#include "control-stack.h"
-#include <libpspp/message.h>
-#include <libpspp/hash.h>
-#include <language/lexer/lexer.h>
-#include <libpspp/str.h>
-#include <data/value-labels.h>
-#include <data/variable.h>
+
+#include "data/dictionary.h"
+#include "data/procedure.h"
+#include "data/transformations.h"
+#include "data/value-labels.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/control/control-stack.h"
+#include "language/lexer/lexer.h"
+#include "libpspp/message.h"
+#include "libpspp/str.h"
+
+#include "gl/xalloc.h"
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
 
-int temporary;
-struct dictionary *temp_dict;
-size_t temp_trns;
-
 /* Parses the TEMPORARY command. */
 int
-cmd_temporary (void)
-{
-  /* TEMPORARY is not allowed inside DO IF or LOOP. */
-  if (!ctl_stack_is_empty ())
-    {
-      msg (SE, _("This command is not valid inside DO IF or LOOP."));
-      return CMD_FAILURE;
-    }
-
-  /* TEMPORARY can only appear once! */
-  if (temporary)
-    {
-      msg (SE, _("This command may only appear once between "
-          "procedures and procedure-like commands."));
-      return CMD_FAILURE;
-    }
-
-  /* Make a copy of the current dictionary. */
-  temporary = 1;
-  temp_dict = dict_clone (default_dict);
-  temp_trns = n_trns;
-
-  return lex_end_of_command ();
-}
-
-/* Cancels the temporary transformation, if any. */
-void
-cancel_temporary (void)
+cmd_temporary (struct lexer *lexer UNUSED, struct dataset *ds)
 {
-  if (temporary)
-    {
-      if (temp_dict) 
-        {
-          dict_destroy (temp_dict);
-          temp_dict = NULL; 
-        }
-      temporary = 0;
-      temp_trns = 0;
-    }
+  if (!proc_in_temporary_transformations (ds))
+    proc_start_temporary_transformations (ds);
+  else
+    msg (SE, _("This command may only appear once between "
+               "procedures and procedure-like commands."));
+  return CMD_SUCCESS;
 }