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
34 #include "debug-print.h"
36 static void parse_script (void) NO_RETURN;
37 static void handle_error (int code);
38 static int execute_command (void);
40 /* argv[0] with stripped leading directories. */
43 /* Whether FINISH. has been executed. */
46 /* The current date in the form DD MMM YYYY. */
50 /* If a segfault happens, issue a message to that effect and halt */
51 void bug_handler(int sig);
53 /* Whether we're dropping down to interactive mode immediately because
54 we hit end-of-file unexpectedly (or whatever). */
55 int start_interactive;
57 /* Program entry point. */
59 main (int argc, char **argv)
61 signal (SIGSEGV, bug_handler);
66 init_glob (argc, argv);
67 parse_command_line (argc, argv);
68 if (!outp_read_devices ())
69 msg (FE, _("Error initializing output drivers."));
76 /* Should never be reached */
80 /* Parses the entire script. */
87 handle_error (execute_command ());
90 err_hcf (err_error_count==0);
93 /* Parse and execute a command, returning its return code. */
95 execute_command (void)
97 /* Read the command's first token.
98 We may hit end of file.
99 If so, give the line reader a chance to proceed to the next file.
100 End of file is not handled transparently since the user may want
101 the dictionary cleared between files. */
102 getl_prompt = GETL_PRPT_STANDARD;
109 if (!getl_perform_delayed_reset ())
110 err_hcf (err_error_count==0);
113 /* Parse the command. */
114 getl_prompt = GETL_PRPT_CONTINUATION;
118 /* Print an error message corresponding to the command return code
121 handle_error (int code)
129 msg (SW, _("This command not executed."));
132 case CMD_PART_SUCCESS_MAYBE:
133 msg (SW, _("Skipping the rest of this command. Part of "
134 "this command may have been executed."));
137 case CMD_PART_SUCCESS:
138 msg (SW, _("Skipping the rest of this command. This "
139 "command was fully executed up to this point."));
142 case CMD_TRAILING_GARBAGE:
143 msg (SW, _("Trailing garbage was encountered following "
144 "this command. The command was fully executed "
152 if (getl_reading_script)
155 while (token != T_STOP && token != '.')
164 /* If a segfault happens, issue a message to that effect and halt */
166 bug_handler(int sig UNUSED)
168 request_bug_report_and_abort("Segmentation Violation");