1 /* Parse printf format string.
2    Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc.
3 
4    This program is free software; you can redistribute it and/or modify it
5    under the terms of the GNU Library General Public License as published
6    by the Free Software Foundation; either version 2, or (at your option)
7    any later version.
8 
9    This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12    Library General Public License for more details.
13 
14    You should have received a copy of the GNU Library General Public
15    License along with this program; if not, write to the Free Software
16    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
17    USA.  */
18 
19 #ifndef _PRINTF_PARSE_H
20 #define _PRINTF_PARSE_H
21 
22 #include "printf-args.h"
23 
24 
25 /* Flags */
26 #define FLAG_GROUP	 1	/* ' flag */
27 #define FLAG_LEFT	 2	/* - flag */
28 #define FLAG_SHOWSIGN	 4	/* + flag */
29 #define FLAG_SPACE	 8	/* space flag */
30 #define FLAG_ALT	16	/* # flag */
31 #define FLAG_ZERO	32
32 
33 /* arg_index value indicating that no argument is consumed.  */
34 #define ARG_NONE	(~(size_t)0)
35 
36 /* A parsed directive.  */
37 typedef struct
38 {
39   const char* dir_start;
40   const char* dir_end;
41   int flags;
42   const char* width_start;
43   const char* width_end;
44   size_t width_arg_index;
45   const char* precision_start;
46   const char* precision_end;
47   size_t precision_arg_index;
48   char conversion; /* d i o u x X f e E g G c s p n U % but not C S */
49   size_t arg_index;
50 }
51 char_directive;
52 
53 /* A parsed format string.  */
54 typedef struct
55 {
56   size_t count;
57   char_directive *dir;
58   size_t max_width_length;
59   size_t max_precision_length;
60 }
61 char_directives;
62 
63 
64 /* Parses the format string.  Fills in the number N of directives, and fills
65    in directives[0], ..., directives[N-1], and sets directives[N].dir_start
66    to the end of the format string.  Also fills in the arg_type fields of the
67    arguments and the needed count of arguments.  */
68 #ifdef STATIC
69 STATIC
70 #else
71 extern
72 #endif
73 int printf_parse (const char *format, char_directives *d, arguments *a);
74 
75 #endif /* _PRINTF_PARSE_H */
76