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      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