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/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
This program 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.
This program 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <printf.h>
#if HAVE_STDLIB_H
# include <stdlib.h>
#endif
#include "printf-parse.h"
size_t
parse_printf_format (fmt, n, argtypes)
const char *fmt;
size_t n;
int *argtypes;
{
size_t nargs; /* Number of arguments. */
size_t max_ref_arg; /* Highest index used in a positional arg. */
struct printf_spec spec;
nargs = 0;
max_ref_arg = 0;
/* Search for format specifications. */
for (fmt = find_spec (fmt); *fmt != '\0'; fmt = spec.next_fmt)
{
/* Parse this spec. */
nargs += parse_one_spec (fmt, nargs, &spec, &max_ref_arg);
/* If the width is determined by an argument this is an int. */
if (spec.width_arg != -1 && (size_t) spec.width_arg < n)
argtypes[spec.width_arg] = PA_INT;
/* If the precision is determined by an argument this is an int. */
if (spec.prec_arg != -1 && (size_t) spec.prec_arg < n)
argtypes[spec.prec_arg] = PA_INT;
if ((size_t) spec.data_arg < n)
switch (spec.ndata_args)
{
case 0: /* No arguments. */
break;
case 1: /* One argument; we already have the type. */
argtypes[spec.data_arg] = spec.data_arg_type;
break;
default:
/* We don't handle this here. Beside GNU libc no other
libc provides printf function registration. But while
having this feature it also provides this function, so
that using *this* file is not needed. */
#if 0
/* We have more than one argument for this format spec. We must
call the arginfo function again to determine all the types. */
(void) (*__printf_arginfo_table[spec.info.spec])
(&spec.info, n - spec.data_arg, &argtypes[spec.data_arg]);
#endif
break;
}
}
return MAX (nargs, max_ref_arg);
}
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