/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006, 2009, 2010,
+ 2011, 2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <config.h>
-#include "message.h"
-#include "msg-locator.h"
+#include "libpspp/message.h"
#include <assert.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
-#include <libpspp/str.h>
-#include <libpspp/version.h>
+#include "libpspp/cast.h"
+#include "libpspp/str.h"
+#include "libpspp/version.h"
+#include "data/settings.h"
+#include "gl/minmax.h"
#include "gl/progname.h"
#include "gl/xalloc.h"
#include "gl/xvasprintf.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
-/* Message handler as set by msg_init(). */
-static void (*msg_handler) (const struct msg *);
+/* Message handler as set by msg_set_handler(). */
+static void (*msg_handler) (const struct msg *, void *aux);
+static void *msg_aux;
/* Disables emitting messages if positive. */
static int messages_disabled;
/* Public functions. */
-/* Writes error message in CLASS, with text FORMAT, formatted with
- printf, to the standard places. */
+
void
-msg (enum msg_class class, const char *format, ...)
+vmsg (enum msg_class class, const char *format, va_list args)
{
struct msg m;
- va_list args;
m.category = msg_class_to_category (class);
m.severity = msg_class_to_severity (class);
- va_start (args, format);
m.text = xvasprintf (format, args);
- va_end (args);
+ m.file_name = NULL;
+ m.first_line = m.last_line = 0;
+ m.first_column = m.last_column = 0;
msg_emit (&m);
}
-static struct source_stream *s_stream;
+/* Writes error message in CLASS, with text FORMAT, formatted with
+ printf, to the standard places. */
+void
+msg (enum msg_class class, const char *format, ...)
+{
+ va_list args;
+ va_start (args, format);
+ vmsg (class, format, args);
+ va_end (args);
+}
+
+
void
-msg_init (struct source_stream *ss, void (*handler) (const struct msg *) )
+msg_error (int errnum, const char *format, ...)
{
- s_stream = ss;
- msg_handler = handler;
+ va_list args;
+ char *e;
+ struct msg m;
+
+ m.category = MSG_C_GENERAL;
+ m.severity = MSG_S_ERROR;
+
+ va_start (args, format);
+ e = xvasprintf (format, args);
+ va_end (args);
+
+ m.file_name = NULL;
+ m.first_line = m.last_line = 0;
+ m.first_column = m.last_column = 0;
+ m.text = xasprintf (_("%s: %s"), e, strerror (errnum));
+ free (e);
+
+ msg_emit (&m);
}
+
+
void
-msg_done (void)
+msg_set_handler (void (*handler) (const struct msg *, void *aux), void *aux)
{
+ msg_handler = handler;
+ msg_aux = aux;
}
\f
/* Working with messages. */
+const char *
+msg_severity_to_string (enum msg_severity severity)
+{
+ switch (severity)
+ {
+ case MSG_S_ERROR:
+ return _("error");
+ case MSG_S_WARNING:
+ return _("warning");
+ case MSG_S_NOTE:
+ default:
+ return _("note");
+ }
+}
+
/* Duplicate a message */
struct msg *
msg_dup (const struct msg *m)
struct msg *new_msg;
new_msg = xmemdup (m, sizeof *m);
- if (m->where.file_name != NULL)
- new_msg->where.file_name = xstrdup (m->where.file_name);
+ if (m->file_name != NULL)
+ new_msg->file_name = xstrdup (m->file_name);
new_msg->text = xstrdup (m->text);
return new_msg;
/* Frees a message created by msg_dup().
- (Messages not created by msg_dup(), as well as their where.file_name
+ (Messages not created by msg_dup(), as well as their file_name
members, are typically not dynamically allocated, so this function should
not be used to destroy them.) */
void
msg_destroy (struct msg *m)
{
- free (m->where.file_name);
+ free (m->file_name);
free (m->text);
free (m);
}
char *
msg_to_string (const struct msg *m, const char *command_name)
{
- const char *label;
struct string s;
ds_init_empty (&s);
if (m->category != MSG_C_GENERAL
- && (m->where.file_name || m->where.line_number != -1))
+ && (m->file_name || m->first_line > 0 || m->first_column > 0))
{
- if (m->where.file_name)
- ds_put_format (&s, "%s:", m->where.file_name);
- if (m->where.line_number != -1)
- ds_put_format (&s, "%d:", m->where.line_number);
- ds_put_char (&s, ' ');
+ int l1 = m->first_line;
+ int l2 = MAX (m->first_line, m->last_line - 1);
+ int c1 = m->first_column;
+ int c2 = MAX (m->first_column, m->last_column - 1);
+
+ if (m->file_name)
+ ds_put_format (&s, "%s", m->file_name);
+
+ if (l1 > 0)
+ {
+ if (!ds_is_empty (&s))
+ ds_put_byte (&s, ':');
+
+ if (l2 > l1)
+ {
+ if (c1 > 0)
+ ds_put_format (&s, "%d.%d-%d.%d", l1, c1, l2, c2);
+ else
+ ds_put_format (&s, "%d-%d", l1, l2);
+ }
+ else
+ {
+ if (c1 > 0)
+ {
+ if (c2 > c1)
+ {
+ /* The GNU coding standards say to use
+ LINENO-1.COLUMN-1-COLUMN-2 for this case, but GNU
+ Emacs interprets COLUMN-2 as LINENO-2 if I do that.
+ I've submitted an Emacs bug report:
+ http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7725.
+
+ For now, let's be compatible. */
+ ds_put_format (&s, "%d.%d-%d.%d", l1, c1, l1, c2);
+ }
+ else
+ ds_put_format (&s, "%d.%d", l1, c1);
+ }
+ else
+ ds_put_format (&s, "%d", l1);
+ }
+ }
+ else if (c1 > 0)
+ {
+ if (c2 > c1)
+ ds_put_format (&s, ".%d-%d", c1, c2);
+ else
+ ds_put_format (&s, ".%d", c1);
+ }
+ ds_put_cstr (&s, ": ");
}
- switch (m->severity)
- {
- case MSG_S_ERROR:
- label = _("error");
- break;
- case MSG_S_WARNING:
- label = _("warning");
- break;
- case MSG_S_NOTE:
- default:
- label = _("note");
- break;
- }
- ds_put_format (&s, "%s: ", label);
+ ds_put_format (&s, "%s: ", msg_severity_to_string (m->severity));
if (m->category == MSG_C_SYNTAX && command_name != NULL)
ds_put_format (&s, "%s: ", command_name);
return ds_cstr (&s);
}
\f
-/* Emits M as an error message.
- Frees allocated data in M. */
+
+/* Number of messages reported, by severity level. */
+static int counts[MSG_N_SEVERITIES];
+
+/* True after the maximum number of errors or warnings has been exceeded. */
+static bool too_many_errors;
+
+/* True after the maximum number of notes has been exceeded. */
+static bool too_many_notes;
+
+/* True iff warnings have been explicitly disabled (MXWARNS = 0) */
+static bool warnings_off = false;
+
+/* Checks whether we've had so many errors that it's time to quit
+ processing this syntax file. */
+bool
+msg_ui_too_many_errors (void)
+{
+ return too_many_errors;
+}
+
void
-msg_emit (struct msg *m)
+msg_ui_disable_warnings (bool x)
+{
+ warnings_off = x;
+}
+
+
+void
+msg_ui_reset_counts (void)
{
- if ( s_stream )
- get_msg_location (s_stream, &m->where);
- else
+ int i;
+
+ for (i = 0; i < MSG_N_SEVERITIES; i++)
+ counts[i] = 0;
+ too_many_errors = false;
+ too_many_notes = false;
+}
+
+bool
+msg_ui_any_errors (void)
+{
+ return counts[MSG_S_ERROR] > 0;
+}
+
+
+static int entrances = 0;
+
+static void
+ship_message (struct msg *m)
+{
+ entrances++;
+ if ( ! m->shipped )
{
- m->where.file_name = NULL;
- m->where.line_number = -1;
+ if (msg_handler && entrances <= 1)
+ msg_handler (m, msg_aux);
+ else
+ {
+ fwrite (m->text, 1, strlen (m->text), stderr);
+ fwrite ("\n", 1, 1, stderr);
+ }
}
+ m->shipped = true;
+ entrances--;
+}
+static void
+submit_note (char *s)
+{
+ struct msg m;
+
+ m.category = MSG_C_GENERAL;
+ m.severity = MSG_S_NOTE;
+ m.file_name = NULL;
+ m.first_line = 0;
+ m.last_line = 0;
+ m.first_column = 0;
+ m.last_column = 0;
+ m.text = s;
+ m.shipped = false;
+
+ ship_message (&m);
+
+ free (s);
+}
+
+
+
+static void
+process_msg (struct msg *m)
+{
+ int n_msgs, max_msgs;
+
+ if (too_many_errors
+ || (too_many_notes && m->severity == MSG_S_NOTE)
+ || (warnings_off && m->severity == MSG_S_WARNING) )
+ return;
+
+ ship_message (m);
+
+ counts[m->severity]++;
+ max_msgs = settings_get_max_messages (m->severity);
+ n_msgs = counts[m->severity];
+ if (m->severity == MSG_S_WARNING)
+ n_msgs += counts[MSG_S_ERROR];
+ if (n_msgs > max_msgs)
+ {
+ if (m->severity == MSG_S_NOTE)
+ {
+ too_many_notes = true;
+ submit_note (xasprintf (_("Notes (%d) exceed limit (%d). "
+ "Suppressing further notes."),
+ n_msgs, max_msgs));
+ }
+ else
+ {
+ too_many_errors = true;
+ if (m->severity == MSG_S_WARNING)
+ submit_note (xasprintf (_("Warnings (%d) exceed limit (%d). Syntax processing will be halted."),
+ n_msgs, max_msgs));
+ else
+ submit_note (xasprintf (_("Errors (%d) exceed limit (%d). Syntax processing will be halted."),
+ n_msgs, max_msgs));
+ }
+ }
+}
+
+
+/* Emits M as an error message.
+ Frees allocated data in M. */
+void
+msg_emit (struct msg *m)
+{
+ m->shipped = false;
if (!messages_disabled)
- msg_handler (m);
+ process_msg (m);
+
free (m->text);
}
/* Private functions. */
void
-request_bug_report_and_abort (const char *msg)
+request_bug_report (const char *msg)
{
fprintf (stderr, "******************************************************\n");
fprintf (stderr, "You have discovered a bug in PSPP. Please report this\n");
fprintf (stderr, "include the syntax file that triggered it and a sample\n");
fprintf (stderr, "of any data file used for input.\n");
fprintf (stderr, "proximate cause: %s\n", msg);
- fprintf (stderr, "version: %s\n", stat_version);
+ fprintf (stderr, "version: %s\n", version);
fprintf (stderr, "host_system: %s\n", host_system);
fprintf (stderr, "build_system: %s\n", build_system);
fprintf (stderr, "locale_dir: %s\n", locale_dir);
#endif
);
fprintf (stderr, "******************************************************\n");
-
- _exit (EXIT_FAILURE);
}
+
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