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;
59 /* Initialise error handling on the gsl library */
61 err_handler_gsl (const char *reason, const char *file,
62 int line, int gsl_errno UNUSED)
64 msg(FE, _("gsl error at %s:%d; reason: \"%s\""), file,line,reason);
67 /* Program entry point. */
69 main (int argc, char **argv)
71 signal (SIGSEGV, bug_handler);
73 gsl_set_error_handler(err_handler_gsl);
78 init_glob (argc, argv);
79 parse_command_line (argc, argv);
80 if (!outp_read_devices ())
81 msg (FE, _("Error initializing output drivers."));
88 /* Should never be reached */
92 /* Parses the entire script. */
99 handle_error (execute_command ());
102 err_hcf (err_error_count==0);
105 /* Parse and execute a command, returning its return code. */
107 execute_command (void)
110 /* Read the command's first token.
111 We may hit end of file.
112 If so, give the line reader a chance to proceed to the next file.
113 End of file is not handled transparently since the user may want
114 the dictionary cleared between files. */
115 getl_prompt = GETL_PRPT_STANDARD;
122 if (!getl_perform_delayed_reset ())
123 err_hcf (err_error_count==0);
126 /* Parse the command. */
127 getl_prompt = GETL_PRPT_CONTINUATION;
128 result = cmd_parse ();
130 /* Unset the /ALGORITHM subcommand if it was used */
131 unset_cmd_algorithm ();
136 /* Print an error message corresponding to the command return code
139 handle_error (int code)
147 msg (SW, _("This command not executed."));
150 case CMD_PART_SUCCESS_MAYBE:
151 msg (SW, _("Skipping the rest of this command. Part of "
152 "this command may have been executed."));
155 case CMD_PART_SUCCESS:
156 msg (SW, _("Skipping the rest of this command. This "
157 "command was fully executed up to this point."));
160 case CMD_TRAILING_GARBAGE:
161 msg (SW, _("Trailing garbage was encountered following "
162 "this command. The command was fully executed "
170 if (getl_reading_script)
173 while (token != T_STOP && token != '.')
178 msg (SW, _("The rest of this command has been discarded."));
185 /* If a segfault happens, issue a message to that effect and halt */
187 bug_handler(int sig UNUSED)
189 request_bug_report_and_abort("Segmentation Violation");