/* Parse printf format string. Copyright (C) 1999, 2002-2003, 2005, 2007 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _PRINTF_PARSE_H #define _PRINTF_PARSE_H /* This file can be parametrized with the following macros: ENABLE_UNISTDIO Set to 1 to enable the unistdio extensions. STATIC Set to 'static' to declare the function static. */ #include "printf-args.h" /* Flags */ #define FLAG_GROUP 1 /* ' flag */ #define FLAG_LEFT 2 /* - flag */ #define FLAG_SHOWSIGN 4 /* + flag */ #define FLAG_SPACE 8 /* space flag */ #define FLAG_ALT 16 /* # flag */ #define FLAG_ZERO 32 /* arg_index value indicating that no argument is consumed. */ #define ARG_NONE (~(size_t)0) /* xxx_directive: A parsed directive. xxx_directives: A parsed format string. */ /* A parsed directive. */ typedef struct { const char* dir_start; const char* dir_end; int flags; const char* width_start; const char* width_end; size_t width_arg_index; const char* precision_start; const char* precision_end; size_t precision_arg_index; char conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ size_t arg_index; } char_directive; /* A parsed format string. */ typedef struct { size_t count; char_directive *dir; size_t max_width_length; size_t max_precision_length; } char_directives; #if ENABLE_UNISTDIO /* A parsed directive. */ typedef struct { const uint8_t* dir_start; const uint8_t* dir_end; int flags; const uint8_t* width_start; const uint8_t* width_end; size_t width_arg_index; const uint8_t* precision_start; const uint8_t* precision_end; size_t precision_arg_index; uint8_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ size_t arg_index; } u8_directive; /* A parsed format string. */ typedef struct { size_t count; u8_directive *dir; size_t max_width_length; size_t max_precision_length; } u8_directives; /* A parsed directive. */ typedef struct { const uint16_t* dir_start; const uint16_t* dir_end; int flags; const uint16_t* width_start; const uint16_t* width_end; size_t width_arg_index; const uint16_t* precision_start; const uint16_t* precision_end; size_t precision_arg_index; uint16_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ size_t arg_index; } u16_directive; /* A parsed format string. */ typedef struct { size_t count; u16_directive *dir; size_t max_width_length; size_t max_precision_length; } u16_directives; /* A parsed directive. */ typedef struct { const uint32_t* dir_start; const uint32_t* dir_end; int flags; const uint32_t* width_start; const uint32_t* width_end; size_t width_arg_index; const uint32_t* precision_start; const uint32_t* precision_end; size_t precision_arg_index; uint32_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */ size_t arg_index; } u32_directive; /* A parsed format string. */ typedef struct { size_t count; u32_directive *dir; size_t max_width_length; size_t max_precision_length; } u32_directives; #endif /* Parses the format string. Fills in the number N of directives, and fills in directives[0], ..., directives[N-1], and sets directives[N].dir_start to the end of the format string. Also fills in the arg_type fields of the arguments and the needed count of arguments. */ #if ENABLE_UNISTDIO extern int ulc_printf_parse (const char *format, char_directives *d, arguments *a); extern int u8_printf_parse (const uint8_t *format, u8_directives *d, arguments *a); extern int u16_printf_parse (const uint16_t *format, u16_directives *d, arguments *a); extern int u32_printf_parse (const uint32_t *format, u32_directives *d, arguments *a); #else # ifdef STATIC STATIC # else extern # endif int printf_parse (const char *format, char_directives *d, arguments *a); #endif #endif /* _PRINTF_PARSE_H */
