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
39 int err_warning_count;
41 int err_already_flagged;
45 /* File locator stack. */
46 static const struct file_locator **file_loc;
47 static int nfile_loc, mfile_loc;
49 /* Fairly common public functions. */
51 /* Writes error message in CLASS, with title TITLE and text FORMAT,
52 formatted with printf, to the standard places. */
54 tmsg (int class, const char *title, const char *format, ...)
60 err_location (&e.where);
63 va_start (args, format);
64 err_vmsg (&e, format, args);
68 /* Writes error message in CLASS, with text FORMAT, formatted with
69 printf, to the standard places. */
71 msg (int class, const char *format, ...)
77 err_location (&e.where);
80 va_start (args, format);
81 err_vmsg (&e, format, args);
85 /* Terminate due to fatal error in input. */
92 fprintf (stderr, "%s: %s\n", pgmname,
93 _("Terminating NOW due to a fatal error!"));
98 /* Terminate unless we're interactive or will go interactive when the
103 if (getl_reading_script)
105 if (getl_interactive)
112 /* File locator stack functions. */
114 /* Pushes F onto the stack of file locations. */
116 err_push_file_locator (const struct file_locator *f)
118 if (nfile_loc >= mfile_loc)
125 file_loc = xrealloc (file_loc, mfile_loc * sizeof *file_loc);
128 file_loc[nfile_loc++] = f;
131 /* Pops F off the stack of file locations.
132 Argument F is only used for verification that that is actually the
133 item on top of the stack. */
135 err_pop_file_locator (const struct file_locator *f)
137 assert (nfile_loc >= 0 && file_loc[nfile_loc - 1] == f);
141 /* Puts the current file and line number in F, or NULL and -1 if
144 err_location (struct file_locator *f)
147 *f = *file_loc[nfile_loc - 1];
149 getl_location (&f->filename, &f->line_number);
152 /* Obscure public functions. */
154 /* Writes a blank line to the error device(s).
155 FIXME: currently a no-op. */
161 /* Checks whether we've had so many errors that it's time to quit
162 processing this syntax file. If so, then take appropriate
165 err_check_count (void)
167 int error_class = getl_interactive ? MM : FE;
169 if (get_errorbreak() && err_error_count)
170 msg (error_class, _("Terminating execution of syntax file due to error."));
171 else if (err_error_count > get_mxerrs() )
172 msg (error_class, _("Errors (%d) exceeds limit (%d)."),
173 err_error_count, get_mxerrs());
174 else if (err_error_count + err_warning_count > get_mxwarns() )
175 msg (error_class, _("Warnings (%d) exceed limit (%d)."),
176 err_error_count + err_warning_count, get_mxwarns() );
183 /* Some machines are broken. Compensate. */
185 #define EXIT_SUCCESS 0
189 #define EXIT_FAILURE 1
192 static int terminating;
194 /* Halt-catch-fire. SUCCESS should be nonzero if exiting successfully
195 or zero if not. Despite the name, this is the usual way to finish,
196 successfully or not. */
198 err_hcf (int success)
203 getl_uninitialize ();
212 exit (success ? EXIT_SUCCESS : EXIT_FAILURE);
215 static void puts_stdout (const char *s);
216 static void dump_message (char *errbuf, unsigned indent,
217 void (*func) (const char *), unsigned width);
220 err_vmsg (const struct error *e, const char *format, va_list args)
225 ERR_IN_PROCEDURE = 01, /* 1=Display name of current procedure. */
226 ERR_WITH_FILE = 02, /* 1=Display filename and line number. */
229 /* Describes one class of error. */
232 int flags; /* Zero or more of ERR_*. */
233 int *count; /* Counting category. */
234 const char *banner; /* Banner. */
237 static const struct error_class error_classes[ERR_CLASS_COUNT] =
239 {0, NULL, N_("fatal")}, /* FE */
241 {3, &err_error_count, N_("error")}, /* SE */
242 {3, &err_warning_count, N_("warning")}, /* SW */
243 {3, NULL, N_("note")}, /* SM */
245 {0, NULL, N_("installation error")}, /* IE */
246 {2, NULL, N_("installation error")}, /* IS */
248 {2, &err_error_count, N_("error")}, /* DE */
249 {2, &err_warning_count, N_("warning")}, /* DW */
251 {0, &err_error_count, N_("error")}, /* ME */
252 {0, &err_warning_count, N_("warning")}, /* MW */
253 {0, NULL, N_("note")}, /* MM */
259 /* Check verbosity level. */
261 if (((class >> ERR_VERBOSITY_SHIFT) & ERR_VERBOSITY_MASK) > err_verbosity)
263 class &= ERR_CLASS_MASK;
265 assert (class >= 0 && class < ERR_CLASS_COUNT);
266 assert (format != NULL);
269 if (e->where.filename && (error_classes[class].flags & ERR_WITH_FILE))
271 ds_printf (&msg, "%s:", e->where.filename);
272 if (e->where.line_number != -1)
273 ds_printf (&msg, "%d:", e->where.line_number);
277 ds_printf (&msg, "%s: ", gettext (error_classes[class].banner));
280 int *count = error_classes[class].count;
285 if (cur_proc && (error_classes[class].flags & ERR_IN_PROCEDURE))
286 ds_printf (&msg, "%s: ", cur_proc);
289 ds_puts (&msg, e->title);
291 ds_vprintf (&msg, format, args);
293 /* FIXME: Check set_messages and set_errors to determine where to
294 send errors and messages.
296 Please note that this is not trivial. We have to avoid an
297 infinite loop in reporting errors that originate in the output
299 dump_message (ds_c_str (&msg), 8, puts_stdout, get_viewwidth());
303 if (e->class == FE && !terminating)
307 /* Private functions. */
310 /* Write S followed by a newline to stderr. */
312 puts_stderr (const char *s)
315 fputc ('\n', stderr);
319 /* Write S followed by a newline to stdout. */
321 puts_stdout (const char *s)
326 /* Returns 1 if the line must be broken here */
328 compulsory_break(int c)
330 return ( c == '\n' );
333 /* Returns 1 if C is a `break character', that is, if it is a good
334 place to break a message into lines. */
336 char_is_break (int quote, int c)
338 return ((quote && c == DIR_SEPARATOR)
339 || (!quote && (isspace (c) || c == '-' || c == '/')));
342 /* Returns 1 if C is a break character where the break should be made
343 BEFORE the character. */
345 break_before (int quote, int c)
347 return !quote && isspace (c);
350 /* If C is a break character, returns 1 if the break should be made
351 AFTER the character. Does not return a meaningful result if C is
352 not a break character. */
354 break_after (int quote, int c)
356 return !break_before (quote, c);
359 /* If you want very long words that occur at a bad break point to be
360 broken into two lines even if they're shorter than a whole line by
361 themselves, define as 2/3, or 4/5, or whatever fraction of a whole
362 line you think is necessary in order to consider a word long enough
363 to break into pieces. Otherwise, define as 0. See code to grok
364 the details. Do NOT parenthesize the expression! */
365 #define BREAK_LONG_WORD 0
366 /* #define BREAK_LONG_WORD 2/3 */
367 /* #define BREAK_LONG_WORD 4/5 */
369 /* Divides MSG into lines of WIDTH width for the first line and WIDTH
370 - INDENT width for each succeeding line. Each line is dumped
371 through FUNC, which may do with the string what it will. */
373 dump_message (char *msg, unsigned indent, void (*func) (const char *),
378 /* 1 when at a position inside double quotes ("). */
381 /* Buffer for a single line. */
384 /* If the message is short, just print the full thing. */
385 if (strlen (msg) < width)
391 /* Make sure the indent isn't too big relative to the page width. */
392 if (indent > width / 3)
395 buf = local_alloc (width + 2);
397 /* Advance WIDTH characters into MSG.
398 If that's a valid breakpoint, keep it; otherwise, back up.
400 for (cp = msg; (unsigned) (cp - msg) < width - 1 &&
401 ! compulsory_break(*cp); cp++)
405 if (break_after (quote, (unsigned char) *cp))
407 for (cp--; !char_is_break (quote, (unsigned char) *cp) && cp > msg; cp--)
411 if (break_after (quote, (unsigned char) *cp))
415 if (cp <= msg + width * BREAK_LONG_WORD)
416 for (; cp < msg + width - 1; cp++)
428 /* Repeat above procedure for remaining lines. */
431 static int hard_break=0;
436 /* Advance past whitespace. */
438 while ( isspace ((unsigned char) *cp) )
447 /* Advance WIDTH - INDENT characters. */
448 for (cp2 = cp; (unsigned) (cp2 - cp) < width - indent &&
449 *cp2 && !compulsory_break(*cp2); cp2++)
453 if ( compulsory_break(*cp2) )
459 /* Back up if this isn't a breakpoint. */
461 unsigned w = cp2 - cp;
462 if (*cp2 && ! compulsory_break(*cp2) )
463 for (cp2--; !char_is_break (quote, (unsigned char) *cp2) &&
472 if (w == width - indent
473 && (unsigned) (cp2 - cp) <= (width - indent) * BREAK_LONG_WORD)
474 for (; (unsigned) (cp2 - cp) < width - indent && *cp2 ; cp2++)
480 /* Write out the line. */
482 memset (buf, ' ', indent);
483 memcpy (&buf[indent], cp, cp2 - cp);
485 buf[indent + idx + cp2 - cp] = '\0';
495 request_bug_report_and_abort(const char *msg )
498 "******************************************************************\n"
499 "You have discovered a bug in PSPP.\n\n"
500 " Please report this, by sending "
501 "an email to " PACKAGE_BUGREPORT ",\n"
502 "explaining what you were doing when this happened, and including\n"
503 "a sample of your input file which caused it.\n");
506 "Also, please copy the following lines into your bug report:\n\n"
512 "default_config_path: %s\n"
514 "groff_font_path: %s\n"
516 "compiler version: %s\n"
536 fprintf(stderr,"Diagnosis: %s\n",msg);
539 "******************************************************************\n");
545 err_assert_fail(const char *expr, const char *file, int line)
548 snprintf(msg,256,"Assertion failed: %s:%d; (%s)",file,line,expr);
549 request_bug_report_and_abort( msg );