Completely rewrite src/data/format.[ch], to achieve better

[pspp-builds.git] / src / ui / terminal / main.c

diff --git a/src/ui/terminal/main.c b/src/ui/terminal/main.c
index 16058e45d33913dda0224d721fc7e188409e93a9..6998f773d9fb12ddbf7f7250e581a515746a46bf 100644 (file)
--- a/src/ui/terminal/main.c
+++ b/src/ui/terminal/main.c
@@ -1,5 +1,5 @@
 /* PSPP - computes sample statistics.
-   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
    Written by Ben Pfaff <blp@gnu.org>.
 
    This program is free software; you can redistribute it and/or
@@ -19,6 +19,9 @@
 
 #include <config.h>
 
+#include <signal.h>
+#include <stdio.h>
+
 #include "command-line.h"
 #include "msg-ui.h"
 #include "progname.h"
@@ -27,6 +30,8 @@
 #include <data/dictionary.h>
 #include <data/file-handle-def.h>
 #include <data/file-name.h>
+#include <data/format.h>
+#include <data/procedure.h>
 #include <data/settings.h>
 #include <data/variable.h>
 #include <gsl/gsl_errno.h>
@@ -38,9 +43,6 @@
 #include <libpspp/version.h>
 #include <math/random.h>
 #include <output/output.h>
-#include <signal.h>
-#include <stdio.h>
-
 
 #if HAVE_FPU_CONTROL_H
 #include <fpu_control.h>
@@ -61,8 +63,6 @@
 
 static void i18n_init (void);
 static void fpu_init (void);
-static void handle_error (int code);
-static int execute_command (void);
 static void terminate (bool success) NO_RETURN;
 
 /* If a segfault happens, issue a message to that effect and halt */
@@ -70,12 +70,15 @@ void bug_handler(int sig);
 
 /* Handle quit/term/int signals */
 void interrupt_handler(int sig);
+static struct dataset * the_dataset = NULL;
+
 
 
 /* Program entry point. */
 int
 main (int argc, char **argv)
 {
+  signal (SIGABRT, bug_handler);
   signal (SIGSEGV, bug_handler);
   signal (SIGFPE, bug_handler);
   signal (SIGINT, interrupt_handler);
@@ -85,6 +88,7 @@ main (int argc, char **argv)
   fpu_init ();
   gsl_set_error_handler_off ();
 
+  fmt_init ();
   outp_init ();
   msg_ui_init ();
   fn_init ();
@@ -93,110 +97,33 @@ main (int argc, char **argv)
   readln_initialize ();
   settings_init ();
   random_init ();
-
-  default_dict = dict_create ();
+  the_dataset = create_dataset ();
 
   if (parse_command_line (argc, argv)) 
     {
       outp_read_devices ();
-      lex_init ();
+      lex_init (do_read_line);
 
       for (;;)
         {
-          int retval;
-
-          check_msg_count ();
-
-          retval = execute_command ();
-          if (retval == CMD_EOF)
+          int result = cmd_parse (the_dataset, 
+                                 proc_has_source (the_dataset)
+                                  ? CMD_STATE_DATA : CMD_STATE_INITIAL);
+          if (result == CMD_EOF || result == CMD_FINISH)
             break;
-          if (retval != CMD_SUCCESS)
-            handle_error (retval);
+          if (result == CMD_CASCADING_FAILURE && !getl_is_interactive ())
+            {
+              msg (SE, _("Stopping syntax file processing here to avoid "
+                         "a cascade of dependent command failures."));
+              getl_abort_noninteractive (); 
+            }
+          else
+            check_msg_count ();
         }
     }
   
   terminate (!any_errors ());
 }
-
-/* Parse and execute a command, returning its return code. */
-static int
-execute_command (void)
-{
-  int result;
-  
-  /* Read the command's first token.  
-     The first token is part of the first line of the command. */
-  getl_set_prompt_style (GETL_PROMPT_FIRST);
-  lex_get ();
-  if (token == T_STOP)
-    return CMD_EOF;
-
-  /* Parse the command.
-     Any lines read after the first token must be continuation
-     lines. */
-  getl_set_prompt_style (GETL_PROMPT_LATER);
-  result = cmd_parse ();
- 
-  /* Unset the /ALGORITHM subcommand if it was used */
-  unset_cmd_algorithm ();
-
-  /* Clear any auxiliary data from the dictionary. */
-  dict_clear_aux (default_dict);
-
-  return result;
-}
-
-/* Print an error message corresponding to the command return code
-   CODE. */
-static void
-handle_error (int code)
-{
-  if (code == CMD_CASCADING_FAILURE && !getl_is_interactive ()) 
-    {
-      msg (SW, _("This command not executed.  Stopping here "
-                 "to avoid cascading failures."));
-      getl_abort_noninteractive ();
-      return;
-    }
-
-  switch (code)
-    {
-    case CMD_FAILURE:
-    case CMD_CASCADING_FAILURE:
-      msg (SW,  _("This command not executed."));
-      break;
-
-    case CMD_PART_SUCCESS_MAYBE:
-      msg (SW, _("Skipping the rest of this command.  Part of "
-                "this command may have been executed."));
-      break;
-                 
-    case CMD_PART_SUCCESS:
-      msg (SW, _("Skipping the rest of this command.  This "
-                "command was fully executed up to this point."));
-      break;
-
-    case CMD_TRAILING_GARBAGE:
-      msg (SW, _("Trailing garbage was encountered following "
-                "this command.  The command was fully executed "
-                "to this point."));
-      break;
-
-    default:
-      abort ();
-    }
-
-  if (!getl_is_interactive ())
-    {
-      while (token != T_STOP && token != '.')
-       lex_get ();
-    }
-  else 
-    {
-      msg (SW, _("The rest of this command has been discarded."));
-      lex_discard_line (); 
-    }
-}
 \f
 static void
 i18n_init (void) 
@@ -228,15 +155,14 @@ bug_handler(int sig)
 {
   switch (sig) 
     {
+    case SIGABRT:
+      request_bug_report_and_abort("Assertion Failure/Abort");
     case SIGFPE:
       request_bug_report_and_abort("Floating Point Exception");
-      break;
     case SIGSEGV:
       request_bug_report_and_abort("Segmentation Violation");
-      break;
     default:
-      request_bug_report_and_abort("");
-      break;
+      request_bug_report_and_abort("Unknown");
     }
 }
 
@@ -257,8 +183,7 @@ terminate (bool success)
     {
       terminating = true;
 
-      cancel_transformations ();
-      dict_destroy (default_dict);
+      destroy_dataset (the_dataset);
 
       random_done ();
       settings_done ();