1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
22 #include <gsl/gsl_errno.h>
36 #include "debug-print.h"
38 static void parse_script (void) NO_RETURN;
39 static void handle_error (int code);
40 static int execute_command (void);
42 /* argv[0] with stripped leading directories. */
45 /* Whether FINISH. has been executed. */
48 /* The current date in the form DD MMM YYYY. */
52 /* If a segfault happens, issue a message to that effect and halt */
53 void bug_handler(int sig);
55 /* Whether we're dropping down to interactive mode immediately because
56 we hit end-of-file unexpectedly (or whatever). */
57 int start_interactive;
60 /* Program entry point. */
62 main (int argc, char **argv)
64 signal (SIGSEGV, bug_handler);
66 gsl_set_error_handler_off();
71 init_glob (argc, argv);
72 parse_command_line (argc, argv);
73 if (!outp_read_devices ())
74 msg (FE, _("Error initializing output drivers."));
81 /* Should never be reached */
85 /* Parses the entire script. */
92 handle_error (execute_command ());
95 err_hcf (err_error_count==0);
98 /* Parse and execute a command, returning its return code. */
100 execute_command (void)
103 /* Read the command's first token.
104 We may hit end of file.
105 If so, give the line reader a chance to proceed to the next file.
106 End of file is not handled transparently since the user may want
107 the dictionary cleared between files. */
108 getl_prompt = GETL_PRPT_STANDARD;
115 if (!getl_perform_delayed_reset ())
116 err_hcf (err_error_count==0);
119 /* Parse the command. */
120 getl_prompt = GETL_PRPT_CONTINUATION;
121 result = cmd_parse ();
123 /* Unset the /ALGORITHM subcommand if it was used */
124 unset_cmd_algorithm ();
129 /* Print an error message corresponding to the command return code
132 handle_error (int code)
140 msg (SW, _("This command not executed."));
143 case CMD_PART_SUCCESS_MAYBE:
144 msg (SW, _("Skipping the rest of this command. Part of "
145 "this command may have been executed."));
148 case CMD_PART_SUCCESS:
149 msg (SW, _("Skipping the rest of this command. This "
150 "command was fully executed up to this point."));
153 case CMD_TRAILING_GARBAGE:
154 msg (SW, _("Trailing garbage was encountered following "
155 "this command. The command was fully executed "
163 if (getl_reading_script)
166 while (token != T_STOP && token != '.')
171 msg (SW, _("The rest of this command has been discarded."));
178 /* If a segfault happens, issue a message to that effect and halt */
180 bug_handler(int sig UNUSED)
182 request_bug_report_and_abort("Segmentation Violation");