76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <printf.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#endif
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#include "printf-parse.h"
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size_t
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parse_printf_format (fmt, n, argtypes)
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const char *fmt;
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size_t n;
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int *argtypes;
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{
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size_t nargs; /* Number of arguments. */
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size_t max_ref_arg; /* Highest index used in a positional arg. */
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struct printf_spec spec;
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nargs = 0;
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max_ref_arg = 0;
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/* Search for format specifications. */
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for (fmt = find_spec (fmt); *fmt != '\0'; fmt = spec.next_fmt)
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{
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/* Parse this spec. */
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nargs += parse_one_spec (fmt, nargs, &spec, &max_ref_arg);
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/* If the width is determined by an argument this is an int. */
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if (spec.width_arg != -1 && spec.width_arg < (int) n)
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argtypes[spec.width_arg] = PA_INT;
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/* If the precision is determined by an argument this is an int. */
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if (spec.prec_arg != -1 && spec.prec_arg < (int) n)
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argtypes[spec.prec_arg] = PA_INT;
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if (spec.data_arg < (int) n)
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switch (spec.ndata_args)
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{
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case 0: /* No arguments. */
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break;
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case 1: /* One argument; we already have the type. */
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argtypes[spec.data_arg] = spec.data_arg_type;
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break;
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default:
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/* We don't handle this here. Beside GNU libc no other
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libc provides printf function registration. But while
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having this feature it also provides this function, so
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that using *this* file is not needed. */
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break;
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}
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}
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return MAX (nargs, max_ref_arg);
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}
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