Beginning of VFM cleanup.

[pspp-builds.git] / src / command.c

diff --git a/src/command.c b/src/command.c
index 4afe70be1130a96af955f2627cbe7724e516244e..b12e46d0dfb9c7d815e7164b537b68832f8789f0 100644 (file)
--- a/src/command.c
+++ b/src/command.c
@@ -17,24 +17,7 @@
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
    02111-1307, USA. */
 
-/* AIX requires this to be the first thing in the file.  */
 #include <config.h>
-#if __GNUC__
-#define alloca __builtin_alloca
-#else
-#if HAVE_ALLOCA_H
-#include <alloca.h>
-#else
-#ifdef _AIX
-#pragma alloca
-#else
-#ifndef alloca                 /* predefined by HP cc +Olibcalls */
-char *alloca ();
-#endif
-#endif
-#endif
-#endif
-
 #include <assert.h>
 #include "command.h"
 #include <stdio.h>
@@ -218,7 +201,8 @@ cmd_parse (void)
 
   /* If we're in a FILE TYPE structure, only certain commands can be
      allowed. */
-  if (pgm_state == STATE_INPUT && vfm_source == &file_type_source
+  if (pgm_state == STATE_INPUT
+      && case_source_is_class (vfm_source, &file_type_source_class)
       && !FILE_TYPE_okay (cp))
     return CMD_FAILURE;
 
@@ -266,7 +250,7 @@ cmd_parse (void)
     
     /* Perform the state transition if the command completed
        successfully (at least in part). */
-    if (result != 0)
+    if (result != CMD_FAILURE)
       {
        pgm_state = cp->transition[pgm_state];
 
@@ -578,19 +562,28 @@ int
 cmd_execute (void)
 {
   lex_match_id ("EXECUTE");
-  procedure (NULL, NULL, NULL);
+  procedure (NULL, NULL, NULL, NULL);
   return lex_end_of_command ();
 }
 
+
+#define assert_not_safer() \
+  do { \
+   if (set_safer) \
+    { \
+      msg (SE, _("This command not allowed when the SAFER option is set.")); \
+      return CMD_FAILURE; \
+    } \
+} while(0) 
+
+
+
 /* Parses, performs the ERASE command. */
 int
 cmd_erase (void)
 {
-  if (set_safer)
-    {
-      msg (SE, _("This command not allowed when the SAFER option is set."));
-      return CMD_FAILURE;
-    }
+
+  assert_not_safer();
   
   lex_match_id ("ERASE");
   if (!lex_force_match_id ("FILE"))
@@ -606,10 +599,10 @@ cmd_erase (void)
       return CMD_FAILURE;
     }
 
-  return lex_end_of_command ();
+  return CMD_SUCCESS;
 }
 
-#if unix
+#ifdef unix
 /* Spawn a shell process. */
 static int
 shell (void)
@@ -717,15 +710,11 @@ cmd_host (void)
 {
   int code;
 
-  if (set_safer)
-    {
-      msg (SE, _("This command not allowed when the SAFER option is set."));
-      return CMD_FAILURE;
-    }
+  assert_not_safer();
   
   lex_match_id ("HOST");
 
-#if unix
+#ifdef unix
   /* Figure out whether to invoke an interactive shell or to execute a
      single shell command. */
   if (lex_look_ahead () == '.')