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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
      5    it under the terms of the GNU General Public License as published by
      6    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
     12    GNU General Public License for more details.
     13 
     14    You should have received a copy of the GNU General Public License along
     15    with this program; if not, write to the Free Software Foundation,
     16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
     17 
     18 #ifndef _PRINTF_PARSE_H
     19 #define _PRINTF_PARSE_H
     20 
     21 #include "printf-args.h"
     22 
     23 
     24 /* Flags */
     25 #define FLAG_GROUP	 1	/* ' flag */
     26 #define FLAG_LEFT	 2	/* - flag */
     27 #define FLAG_SHOWSIGN	 4	/* + flag */
     28 #define FLAG_SPACE	 8	/* space flag */
     29 #define FLAG_ALT	16	/* # flag */
     30 #define FLAG_ZERO	32
     31 
     32 /* arg_index value indicating that no argument is consumed.  */
     33 #define ARG_NONE	(~(size_t)0)
     34 
     35 /* A parsed directive.  */
     36 typedef struct
     37 {
     38   const char* dir_start;
     39   const char* dir_end;
     40   int flags;
     41   const char* width_start;
     42   const char* width_end;
     43   size_t width_arg_index;
     44   const char* precision_start;
     45   const char* precision_end;
     46   size_t precision_arg_index;
     47   char conversion; /* d i o u x X f e E g G c s p n U % but not C S */
     48   size_t arg_index;
     49 }
     50 char_directive;
     51 
     52 /* A parsed format string.  */
     53 typedef struct
     54 {
     55   size_t count;
     56   char_directive *dir;
     57   size_t max_width_length;
     58   size_t max_precision_length;
     59 }
     60 char_directives;
     61 
     62 
     63 /* Parses the format string.  Fills in the number N of directives, and fills
     64    in directives[0], ..., directives[N-1], and sets directives[N].dir_start
     65    to the end of the format string.  Also fills in the arg_type fields of the
     66    arguments and the needed count of arguments.  */
     67 #ifdef STATIC
     68 STATIC
     69 #else
     70 extern
     71 #endif
     72 int printf_parse (const char *format, char_directives *d, arguments *a);
     73 
     74 #endif /* _PRINTF_PARSE_H */
     75