1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2006, 2009, 2010,
3 2011, 2013 Free Software Foundation, Inc.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU 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, see <http://www.gnu.org/licenses/>. */
20 #include "libpspp/message.h"
29 #include "libpspp/cast.h"
30 #include "libpspp/str.h"
31 #include "libpspp/version.h"
32 #include "data/settings.h"
34 #include "gl/minmax.h"
35 #include "gl/progname.h"
36 #include "gl/xalloc.h"
37 #include "gl/xvasprintf.h"
40 #define _(msgid) gettext (msgid)
42 /* Message handler as set by msg_set_handler(). */
43 static void (*msg_handler) (const struct msg *, void *aux);
46 /* Disables emitting messages if positive. */
47 static int messages_disabled;
49 /* Public functions. */
53 vmsg (enum msg_class class, const char *format, va_list args)
56 .category = msg_class_to_category (class),
57 .severity = msg_class_to_severity (class),
58 .text = xvasprintf (format, args),
64 /* Writes error message in CLASS, with text FORMAT, formatted with
65 printf, to the standard places. */
67 msg (enum msg_class class, const char *format, ...)
70 va_start (args, format);
71 vmsg (class, format, args);
78 msg_error (int errnum, const char *format, ...)
81 va_start (args, format);
82 char *e = xvasprintf (format, args);
86 .category = MSG_C_GENERAL,
87 .severity = MSG_S_ERROR,
89 .text = xasprintf (_("%s: %s"), e, strerror (errnum)),
99 msg_set_handler (void (*handler) (const struct msg *, void *aux), void *aux)
101 msg_handler = handler;
105 /* Working with messages. */
108 msg_severity_to_string (enum msg_severity severity)
122 /* Duplicate a message */
124 msg_dup (const struct msg *m)
128 new_msg = xmemdup (m, sizeof *m);
129 if (m->file_name != NULL)
130 new_msg->file_name = xstrdup (m->file_name);
131 if (m->command_name != NULL)
132 new_msg->command_name = xstrdup (m->command_name);
133 new_msg->text = xstrdup (m->text);
138 /* Frees a message created by msg_dup().
140 (Messages not created by msg_dup(), as well as their file_name
141 members, are typically not dynamically allocated, so this function should
142 not be used to destroy them.) */
144 msg_destroy (struct msg *m)
148 free (m->command_name);
153 msg_to_string (const struct msg *m)
159 if (m->category != MSG_C_GENERAL
160 && (m->file_name || m->first_line > 0 || m->first_column > 0))
162 int l1 = m->first_line;
163 int l2 = MAX (m->first_line, m->last_line - 1);
164 int c1 = m->first_column;
165 int c2 = MAX (m->first_column, m->last_column - 1);
168 ds_put_format (&s, "%s", m->file_name);
172 if (!ds_is_empty (&s))
173 ds_put_byte (&s, ':');
178 ds_put_format (&s, "%d.%d-%d.%d", l1, c1, l2, c2);
180 ds_put_format (&s, "%d-%d", l1, l2);
188 /* The GNU coding standards say to use
189 LINENO-1.COLUMN-1-COLUMN-2 for this case, but GNU
190 Emacs interprets COLUMN-2 as LINENO-2 if I do that.
191 I've submitted an Emacs bug report:
192 http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7725.
194 For now, let's be compatible. */
195 ds_put_format (&s, "%d.%d-%d.%d", l1, c1, l1, c2);
198 ds_put_format (&s, "%d.%d", l1, c1);
201 ds_put_format (&s, "%d", l1);
207 ds_put_format (&s, ".%d-%d", c1, c2);
209 ds_put_format (&s, ".%d", c1);
211 ds_put_cstr (&s, ": ");
214 ds_put_format (&s, "%s: ", msg_severity_to_string (m->severity));
216 if (m->category == MSG_C_SYNTAX && m->command_name != NULL)
217 ds_put_format (&s, "%s: ", m->command_name);
219 ds_put_cstr (&s, m->text);
225 /* Number of messages reported, by severity level. */
226 static int counts[MSG_N_SEVERITIES];
228 /* True after the maximum number of errors or warnings has been exceeded. */
229 static bool too_many_errors;
231 /* True after the maximum number of notes has been exceeded. */
232 static bool too_many_notes;
234 /* True iff warnings have been explicitly disabled (MXWARNS = 0) */
235 static bool warnings_off = false;
237 /* Checks whether we've had so many errors that it's time to quit
238 processing this syntax file. */
240 msg_ui_too_many_errors (void)
242 return too_many_errors;
246 msg_ui_disable_warnings (bool x)
253 msg_ui_reset_counts (void)
257 for (i = 0; i < MSG_N_SEVERITIES; i++)
259 too_many_errors = false;
260 too_many_notes = false;
264 msg_ui_any_errors (void)
266 return counts[MSG_S_ERROR] > 0;
270 static int entrances = 0;
273 ship_message (struct msg *m)
278 if (msg_handler && entrances <= 1)
279 msg_handler (m, msg_aux);
282 fwrite (m->text, 1, strlen (m->text), stderr);
283 fwrite ("\n", 1, 1, stderr);
291 submit_note (char *s)
294 .category = MSG_C_GENERAL,
295 .severity = MSG_S_NOTE,
306 process_msg (struct msg *m)
308 int n_msgs, max_msgs;
311 || (too_many_notes && m->severity == MSG_S_NOTE)
312 || (warnings_off && m->severity == MSG_S_WARNING) )
317 counts[m->severity]++;
318 max_msgs = settings_get_max_messages (m->severity);
319 n_msgs = counts[m->severity];
320 if (m->severity == MSG_S_WARNING)
321 n_msgs += counts[MSG_S_ERROR];
322 if (n_msgs > max_msgs)
324 if (m->severity == MSG_S_NOTE)
326 too_many_notes = true;
327 submit_note (xasprintf (_("Notes (%d) exceed limit (%d). "
328 "Suppressing further notes."),
333 too_many_errors = true;
334 if (m->severity == MSG_S_WARNING)
335 submit_note (xasprintf (_("Warnings (%d) exceed limit (%d). Syntax processing will be halted."),
338 submit_note (xasprintf (_("Errors (%d) exceed limit (%d). Syntax processing will be halted."),
345 /* Emits M as an error message.
346 Frees allocated data in M. */
348 msg_emit (struct msg *m)
351 if (!messages_disabled)
355 free (m->command_name);
358 /* Disables message output until the next call to msg_enable. If
359 this function is called multiple times, msg_enable must be
360 called an equal number of times before messages are actually
368 /* Enables message output that was disabled by msg_disable. */
372 assert (messages_disabled > 0);
376 /* Private functions. */
379 request_bug_report (const char *msg)
381 fprintf (stderr, "******************************************************\n");
382 fprintf (stderr, "You have discovered a bug in PSPP. Please report this\n");
383 fprintf (stderr, "to " PACKAGE_BUGREPORT ". Please include this entire\n");
384 fprintf (stderr, "message, *plus* several lines of output just above it.\n");
385 fprintf (stderr, "For the best chance at having the bug fixed, also\n");
386 fprintf (stderr, "include the syntax file that triggered it and a sample\n");
387 fprintf (stderr, "of any data file used for input.\n");
388 fprintf (stderr, "proximate cause: %s\n", msg);
389 fprintf (stderr, "version: %s\n", version);
390 fprintf (stderr, "host_system: %s\n", host_system);
391 fprintf (stderr, "build_system: %s\n", build_system);
392 fprintf (stderr, "locale_dir: %s\n", locale_dir);
393 fprintf (stderr, "compiler version: %s\n",
400 fprintf (stderr, "******************************************************\n");