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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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);
}
}
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