1 /* Copyright (C) 1991, 1992, 1995, 1996, 1999, 2000, 2002-2005, 2007, 2009
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
24 #include <sys/param.h>
26 #include "../locale/localeinfo.h"
28 #ifndef COMPILE_WPRINTF
30 # define UCHAR_T unsigned char
33 # define ISDIGIT(Ch) isdigit (Ch)
34 # define ISASCII(Ch) isascii (Ch)
35 # define MBRLEN(Cp, L, St) __mbrlen (Cp, L, St)
37 # define PUT(F, S, N) _IO_sputn (F, S, N)
38 # define PAD(Padchar) \
40 done += INTUSE(_IO_padn) (s, Padchar, width)
42 # define vfprintf vfwprintf
43 # define CHAR_T wchar_t
44 # define UCHAR_T uwchar_t
46 # define L_(Str) L##Str
47 # define ISDIGIT(Ch) iswdigit (Ch)
49 # define PUT(F, S, N) _IO_sputn (F, S, N)
50 # define PAD(Padchar) \
52 done += _IO_wpadn (s, Padchar, width)
55 #define DONT_NEED_READ_INT
56 #include "printf-parse.h"
60 parse_printf_format (fmt
, n
, argtypes
)
65 size_t nargs
; /* Number of arguments. */
66 size_t max_ref_arg
; /* Highest index used in a positional arg. */
67 struct printf_spec spec
;
68 const unsigned char *f
= (const unsigned char *) fmt
;
73 /* Search for format specifications. */
74 for (f
= __find_specmb (f
); *f
!= '\0'; f
= spec
.next_fmt
)
76 /* Parse this spec. */
77 nargs
+= __parse_one_specmb (f
, nargs
, &spec
, &max_ref_arg
);
79 /* If the width is determined by an argument this is an int. */
80 if (spec
.width_arg
!= -1 && (size_t) spec
.width_arg
< n
)
81 argtypes
[spec
.width_arg
] = PA_INT
;
83 /* If the precision is determined by an argument this is an int. */
84 if (spec
.prec_arg
!= -1 && (size_t) spec
.prec_arg
< n
)
85 argtypes
[spec
.prec_arg
] = PA_INT
;
87 if ((size_t) spec
.data_arg
< n
)
88 switch (spec
.ndata_args
)
90 case 0: /* No arguments. */
92 case 1: /* One argument; we already have the type. */
93 argtypes
[spec
.data_arg
] = spec
.data_arg_type
;
96 /* We have more than one argument for this format spec. We must
97 call the arginfo function again to determine all the types. */
98 (void) (*__printf_arginfo_table
[spec
.info
.spec
])
99 (&spec
.info
, n
- spec
.data_arg
, &argtypes
[spec
.data_arg
],
105 return MAX (nargs
, max_ref_arg
);