gl/printf-parse.h

   1 /* Parse printf format string.
   2    Copyright (C) 1999, 2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 /* A parsed directive.  */
  33 typedef struct
  34 {
  35   const char* dir_start;
  36   const char* dir_end;
  37   int flags;
  38   const char* width_start;
  39   const char* width_end;
  40   int width_arg_index;
  41   const char* precision_start;
  42   const char* precision_end;
  43   int precision_arg_index;
  44   char conversion; /* d i o u x X f e E g G c s p n U % but not C S */
  45   int arg_index;
  46 }
  47 char_directive;
  48
  49 /* A parsed format string.  */
  50 typedef struct
  51 {
  52   unsigned int count;
  53   char_directive *dir;
  54   unsigned int max_width_length;
  55   unsigned int max_precision_length;
  56 }
  57 char_directives;
  58
  59
  60 /* Parses the format string.  Fills in the number N of directives, and fills
  61    in directives[0], ..., directives[N-1], and sets directives[N].dir_start
  62    to the end of the format string.  Also fills in the arg_type fields of the
  63    arguments and the needed count of arguments.  */
  64 #ifdef STATIC
  65 STATIC
  66 #else
  67 extern
  68 #endif
  69 int printf_parse (const char *format, char_directives *d, arguments *a);
  70
  71 #endif /* _PRINTF_PARSE_H */