intl/printf-parse.h

   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  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 */