/* Parse printf format string.

   Copyright (C) 1999, 2002-2003, 2005, 2007, 2010-2018 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 3, 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, see <https://www.gnu.org/licenses/>.  */

#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.  */

#if HAVE_FEATURES_H

# include <features.h> /* for __GLIBC__, __UCLIBC__ */

#endif

#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

#if __GLIBC__ >= 2 && !defined __UCLIBC__

# define FLAG_LOCALIZED 64      /* I flag, uses localized digits */

#endif

/* 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.  */

/* Number of directly allocated directives (no malloc() needed).  */

#define N_DIRECT_ALLOC_DIRECTIVES 7

/* 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_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES];

}

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_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES];

}

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_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES];

}

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_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES];

}

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 */