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