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- // -*- C++ -*-
- /* Copyright (C) 1989, 1990, 1991, 1992 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 2, 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 groff; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <stdio.h>
- #include "assert.h"
- #include "errarg.h"
-
- errarg::errarg(const char *p) : type(STRING)
- {
- s = p ? p : "(null)";
- }
-
- errarg::errarg() : type(EMPTY)
- {
- }
-
- errarg::errarg(unsigned char cc) : type(CHAR)
- {
- c = cc;
- }
-
- errarg::errarg(int nn) : type(INTEGER)
- {
- n = nn;
- }
-
- errarg::errarg(char cc) : type(CHAR)
- {
- c = cc;
- }
-
- errarg::errarg(double dd) : type(DOUBLE)
- {
- d = dd;
- }
-
- int errarg::empty() const
- {
- return type == EMPTY;
- }
-
- extern "C" {
- const char *itoa(int);
- }
-
- void errarg::print() const
- {
- switch (type) {
- case INTEGER:
- fputs(itoa(n), stderr);
- break;
- case CHAR:
- putc(c, stderr);
- break;
- case STRING:
- fputs(s, stderr);
- break;
- case DOUBLE:
- fprintf(stderr, "%g", d);
- break;
- case EMPTY:
- break;
- }
- }
-
- errarg empty_errarg;
-
- void errprint(const char *format,
- const errarg &arg1,
- const errarg &arg2,
- const errarg &arg3)
- {
- assert(format != 0);
- char c;
- while ((c = *format++) != '\0') {
- if (c == '%') {
- c = *format++;
- switch(c) {
- case '%':
- fputc('%', stderr);
- break;
- case '1':
- assert(!arg1.empty());
- arg1.print();
- break;
- case '2':
- assert(!arg2.empty());
- arg2.print();
- break;
- case '3':
- assert(!arg3.empty());
- arg3.print();
- break;
- default:
- assert(0);
- }
- }
- else
- putc(c, stderr);
- }
- }
-