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/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or
(at your option) any later version.
groff is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "errarg.h"
#include "error.h"
extern void fatal_error_exit();
enum error_type { DEBUG, WARNING, ERROR, FATAL };
static void do_error_with_file_and_line(const char *filename,
const char *source_filename,
int lineno,
error_type type,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
bool need_space = false;
if (program_name != 0 /* nullptr */) {
fputs(program_name, stderr);
fputc(':', stderr);
need_space = true;
}
if (filename != 0 /* nullptr */) {
if (strcmp(filename, "-") == 0)
filename = "<standard input>";
fputs(filename, stderr);
if (source_filename != 0 /* nullptr */) {
fputs(":(", stderr);
fputs(source_filename, stderr);
fputc(')', stderr);
}
if (lineno > 0) {
fputc(':', stderr);
errprint("%1", lineno);
}
fputc(':', stderr);
need_space = true;
}
if (need_space)
fputc(' ', stderr);
switch (type) {
case FATAL:
fputs("fatal error", stderr);
break;
case ERROR:
fputs("error", stderr);
break;
case WARNING:
fputs("warning", stderr);
break;
case DEBUG:
fputs("debug", stderr);
break;
}
fputs(": ", stderr);
errprint(format, arg1, arg2, arg3);
fputc('\n', stderr);
fflush(stderr);
if (type == FATAL)
fatal_error_exit();
}
static void do_error(error_type type,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error_with_file_and_line(current_filename, current_source_filename,
current_lineno, type, format, arg1, arg2,
arg3);
}
void debug(const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error(DEBUG, format, arg1, arg2, arg3);
}
void error(const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error(ERROR, format, arg1, arg2, arg3);
}
void warning(const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error(WARNING, format, arg1, arg2, arg3);
}
void fatal(const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error(FATAL, format, arg1, arg2, arg3);
}
// Use the functions below when it's more costly to save and restore the
// globals current_filename, current_source_filename, and current_lineno
// than to specify additional arguments. For instance, a function that
// would need to temporarily change their values and has multiple return
// paths might prefer these to the simpler variants above.
void debug_with_file_and_line(const char *filename,
int lineno,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error_with_file_and_line(filename, 0 /* nullptr */, lineno,
DEBUG, format, arg1, arg2, arg3);
}
void error_with_file_and_line(const char *filename,
int lineno,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error_with_file_and_line(filename, 0 /* nullptr */, lineno,
ERROR, format, arg1, arg2, arg3);
}
void warning_with_file_and_line(const char *filename,
int lineno,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error_with_file_and_line(filename, 0 /* nullptr */, lineno,
WARNING, format, arg1, arg2, arg3);
}
void fatal_with_file_and_line(const char *filename,
int lineno,
const char *format,
const errarg &arg1,
const errarg &arg2,
const errarg &arg3)
{
do_error_with_file_and_line(filename, 0 /* nullptr */, lineno,
FATAL, format, arg1, arg2, arg3);
}
// Local Variables:
// fill-column: 72
// mode: C++
// End:
// vim: set cindent noexpandtab shiftwidth=2 textwidth=72:
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