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., 51 Franklin Street, Fifth Floor, Boston, MA
22 #include <gsl/gsl_errno.h>
26 #include "dictionary.h"
37 #define _(msgid) gettext (msgid)
41 #include "debug-print.h"
43 static void parse_script (void) NO_RETURN;
44 static void handle_error (int code);
45 static int execute_command (void);
47 /* argv[0] with stripped leading directories. */
50 /* Whether FINISH. has been executed. */
53 /* The current date in the form DD MMM YYYY. */
57 /* If a segfault happens, issue a message to that effect and halt */
58 void bug_handler(int sig);
60 /* Handle quit/term/int signals */
61 void interrupt_handler(int sig);
63 /* Whether we're dropping down to interactive mode immediately because
64 we hit end-of-file unexpectedly (or whatever). */
65 int start_interactive;
72 /* Program entry point. */
74 main (int argc, char **argv)
77 signal (SIGSEGV, bug_handler);
78 signal (SIGFPE, bug_handler);
79 signal (SIGINT, interrupt_handler);
81 gsl_set_error_handler_off();
86 init_glob (argc, argv);
87 parse_command_line (argc, argv);
88 if (!outp_read_devices ())
89 msg (FE, _("Error initializing output drivers."));
96 /* Should never be reached */
100 /* Parses the entire script. */
107 handle_error (execute_command ());
110 err_hcf (err_error_count==0);
113 /* Parse and execute a command, returning its return code. */
115 execute_command (void)
119 /* Read the command's first token.
120 We may hit end of file.
121 If so, give the line reader a chance to proceed to the next file.
122 End of file is not handled transparently since the user may want
123 the dictionary cleared between files. */
124 getl_prompt = GETL_PRPT_STANDARD;
131 if (!getl_perform_delayed_reset ())
132 err_hcf (err_error_count==0);
135 /* Parse the command. */
136 getl_prompt = GETL_PRPT_CONTINUATION;
137 result = cmd_parse ();
139 /* Unset the /ALGORITHM subcommand if it was used */
140 unset_cmd_algorithm ();
142 /* Clear any auxiliary data from the dictionary. */
143 dict_clear_aux (default_dict);
148 /* Print an error message corresponding to the command return code
151 handle_error (int code)
159 msg (SW, _("This command not executed."));
162 case CMD_PART_SUCCESS_MAYBE:
163 msg (SW, _("Skipping the rest of this command. Part of "
164 "this command may have been executed."));
167 case CMD_PART_SUCCESS:
168 msg (SW, _("Skipping the rest of this command. This "
169 "command was fully executed up to this point."));
172 case CMD_TRAILING_GARBAGE:
173 msg (SW, _("Trailing garbage was encountered following "
174 "this command. The command was fully executed "
182 if (getl_reading_script)
185 while (token != T_STOP && token != '.')
190 msg (SW, _("The rest of this command has been discarded."));
197 /* If a segfault happens, issue a message to that effect and halt */
199 bug_handler(int sig UNUSED)
204 request_bug_report_and_abort("Floating Point Exception");
207 request_bug_report_and_abort("Segmentation Violation");
210 request_bug_report_and_abort("");
217 interrupt_handler(int sig UNUSED)