diff options
Diffstat (limited to 'src/libs/libgroff/error.cpp')
| -rw-r--r-- | src/libs/libgroff/error.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/libs/libgroff/error.cpp b/src/libs/libgroff/error.cpp new file mode 100644 index 0000000..b1a4e61 --- /dev/null +++ b/src/libs/libgroff/error.cpp @@ -0,0 +1,185 @@ +/* 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: |