mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
9d26efa90c
New types printf_arginfo_size_function, printf_va_arg_function. Declare register_printf_specifier, register_printf_modifier, register_printf_type. * stdio-common/printf-parse.h (struct printf_spec): Add size element. (union printf_arg): Add pa_user element. Adjust __printf_arginfo_table type. Add __printf_va_arg_table, __printf_modifier_table, __handle_registered_modifier_mb, and __handle_registered_modifier_wc declarations. * stdio-common/printf-parsemb.c: Recognize registered modifiers. If registered arginfo call failed try normal specifier. * stdio-common/printf-prs.c: Pass additional parameter to arginfo function. * stdio-common/Makefile (routines): Add reg-modifier and reg-type. * stdio-common/Versions: Export register_printf_modifier, register_printf_type, and register_printf_specifier for GLIBC_2.10. * stdio-common/reg-modifier.c: New file. * stdio-common/reg-type.c: New file. * stdio-common/reg-printf.c (__register_printf_specifier): New function. Mostly the old __register_printf_function function but uses locking and type of third parameter changed. (__register_printf_function): Implement using __register_printf_specifier. * stdio-common/vfprintf.c (vfprintf): Collect argument sizes in calls to arginfo functions. Allocate enough memory for user-defined types. Call new va_arg functions to get user-defined types. Try installed handlers even for existing format specifiers first.
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/* Copyright (C) 1991, 1992, 1995, 1996, 1999, 2000, 2002-2005, 2007, 2009
|
|
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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; 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>
|
|
|
|
#include "../locale/localeinfo.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)
|
|
# define ISASCII(Ch) isascii (Ch)
|
|
# define MBRLEN(Cp, L, St) __mbrlen (Cp, L, St)
|
|
|
|
# define PUT(F, S, N) _IO_sputn (F, S, N)
|
|
# define PAD(Padchar) \
|
|
if (width > 0) \
|
|
done += INTUSE(_IO_padn) (s, Padchar, width)
|
|
#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)
|
|
|
|
# define PUT(F, S, N) _IO_sputn (F, S, N)
|
|
# define PAD(Padchar) \
|
|
if (width > 0) \
|
|
done += _IO_wpadn (s, Padchar, width)
|
|
#endif
|
|
|
|
#define DONT_NEED_READ_INT
|
|
#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;
|
|
const unsigned char *f = (const unsigned char *) fmt;
|
|
|
|
nargs = 0;
|
|
max_ref_arg = 0;
|
|
|
|
/* Search for format specifications. */
|
|
for (f = __find_specmb (f); *f != '\0'; f = spec.next_fmt)
|
|
{
|
|
/* Parse this spec. */
|
|
nargs += __parse_one_specmb (f, 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 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],
|
|
&spec.size);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return MAX (nargs, max_ref_arg);
|
|
}
|