Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/stdio-common/printf-prs.c
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
118 lines (102 sloc)
3.63 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Library General Public License as | |
published by the Free Software Foundation; either version 2 of the | |
License, or (at your option) any later version. | |
The GNU C Library 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 | |
Library General Public License for more details. | |
You should have received a copy of the GNU Library General Public | |
License along with the GNU C Library; see the file COPYING.LIB. If not, | |
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
Boston, MA 02111-1307, USA. */ | |
#include <stdio.h> | |
#include <printf.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <wchar.h> | |
#include <sys/param.h> | |
#ifndef COMPILE_WPRINTF | |
# define CHAR_T char | |
# define UCHAR_T unsigned char | |
# define INT_T int | |
# define L_(Str) Str | |
# define ISDIGIT(Ch) isdigit (Ch) | |
# ifdef USE_IN_LIBIO | |
# define PUT(F, S, N) _IO_sputn (F, S, N) | |
# define PAD(Padchar) \ | |
if (width > 0) \ | |
done += _IO_padn (s, Padchar, width) | |
# else | |
# define PUTC(C, F) putc (C, F) | |
ssize_t __printf_pad __P ((FILE *, char pad, size_t n)); | |
# define PAD(Padchar) \ | |
if (width > 0) \ | |
{ if (__printf_pad (s, Padchar, width) == -1) \ | |
return -1; else done += width; } | |
# endif | |
#else | |
# define vfprintf vfwprintf | |
# define CHAR_T wchar_t | |
# define UCHAR_T uwchar_t | |
# define INT_T wint_t | |
# define L_(Str) L##Str | |
# define ISDIGIT(Ch) iswdigit (Ch) | |
# ifdef USE_IN_LIBIO | |
# define PUT(F, S, N) _IO_sputn (F, S, N) | |
# define PAD(Padchar) \ | |
if (width > 0) \ | |
done += _IO_wpadn (s, Padchar, width) | |
# else | |
# define PUTC(C, F) wputc (C, F) | |
ssize_t __wprintf_pad __P ((FILE *, wchar_t pad, size_t n)); | |
# define PAD(Padchar) \ | |
if (width > 0) \ | |
{ if (__wprintf_pad (s, Padchar, width) == -1) \ | |
return -1; else done += width; } | |
# endif | |
#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; | |
mbstate_t mbstate; | |
nargs = 0; | |
max_ref_arg = 0; | |
/* Search for format specifications. */ | |
for (fmt = find_spec (fmt, &mbstate); *fmt != '\0'; fmt = spec.next_fmt) | |
{ | |
/* Parse this spec. */ | |
nargs += parse_one_spec (fmt, nargs, &spec, &max_ref_arg, &mbstate); | |
/* 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 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]); | |
break; | |
} | |
} | |
return MAX (nargs, max_ref_arg); | |
} |