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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com) */
#include <stdio.h>
#include <assert.h>
#include "errarg.h"
#include "lib.h" // for our_itoa()
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;
}
void
errarg::print() const
{
switch (type) {
case INTEGER:
fputs(our_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)
{
char c;
assert(format != 0);
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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