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
