#ifndef SCM_SRFI_14_H
#define SCM_SRFI_14_H

/* srfi-14.c --- SRFI-14 procedures for Guile
xxg
   Copyright 2001,2004,2006,2008,2011,2018
     Free Software Foundation, Inc.

   This file is part of Guile.

   Guile is free software: you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   Guile 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 Lesser General Public
   License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with Guile.  If not, see
   <https://www.gnu.org/licenses/>.  */


#include "libguile/chars.h"

typedef struct
{
  scm_t_wchar lo;
  scm_t_wchar hi;
} scm_t_char_range;

typedef struct 
{
  size_t len;
  scm_t_char_range *ranges;
} scm_t_char_set;

typedef struct
{
  size_t range;
  scm_t_wchar n;
} scm_t_char_set_cursor;

#define SCM_CHARSET_GET(cs,idx)                                 \
  scm_i_charset_get((scm_t_char_set *)SCM_SMOB_DATA(cs),idx)

#define SCM_CHARSETP(x) (SCM_HAS_TYP16 (x, scm_tc16_charset))

/* Smob type code for character sets.  */
SCM_API int scm_tc16_charset;
SCM_INTERNAL int scm_i_charset_get (scm_t_char_set *cs, scm_t_wchar n);
SCM_INTERNAL void scm_i_charset_set (scm_t_char_set *cs, scm_t_wchar n);
SCM_INTERNAL void scm_i_charset_unset (scm_t_char_set *cs, scm_t_wchar n);

SCM_API SCM scm_char_set_p (SCM obj);
SCM_API SCM scm_char_set_eq (SCM char_sets);
SCM_API SCM scm_char_set_leq (SCM char_sets);
SCM_API SCM scm_char_set_hash (SCM cs, SCM bound);
SCM_API SCM scm_char_set_cursor (SCM cs);
SCM_API SCM scm_char_set_ref (SCM cs, SCM cursor);
SCM_API SCM scm_char_set_cursor_next (SCM cs, SCM cursor);
SCM_API SCM scm_end_of_char_set_p (SCM cursor);
SCM_API SCM scm_char_set_fold (SCM kons, SCM knil, SCM cs);
SCM_API SCM scm_char_set_unfold (SCM p, SCM f, SCM g, SCM seed, SCM base_cs);
SCM_API SCM scm_char_set_unfold_x (SCM p, SCM f, SCM g, SCM seed, SCM base_cs);
SCM_API SCM scm_char_set_for_each (SCM proc, SCM cs);
SCM_API SCM scm_char_set_map (SCM proc, SCM cs);
SCM_API SCM scm_char_set_copy (SCM cs);
SCM_API SCM scm_char_set (SCM rest);
SCM_API SCM scm_list_to_char_set (SCM list, SCM base_cs);
SCM_API SCM scm_list_to_char_set_x (SCM list, SCM base_cs);
SCM_API SCM scm_string_to_char_set (SCM str, SCM base_cs);
SCM_API SCM scm_string_to_char_set_x (SCM str, SCM base_cs);
SCM_API SCM scm_char_set_filter (SCM pred, SCM cs, SCM base_cs);
SCM_API SCM scm_char_set_filter_x (SCM pred, SCM cs, SCM base_cs);
SCM_API SCM scm_ucs_range_to_char_set (SCM lower, SCM upper, SCM error, SCM base_cs);
SCM_API SCM scm_ucs_range_to_char_set_x (SCM lower, SCM upper, SCM error, SCM base_cs);
SCM_API SCM scm_to_char_set (SCM x);
SCM_API SCM scm_char_set_size (SCM cs);
SCM_API SCM scm_char_set_count (SCM pred, SCM cs);
SCM_API SCM scm_char_set_to_list (SCM cs);
SCM_API SCM scm_char_set_to_string (SCM cs);
SCM_API SCM scm_char_set_contains_p (SCM cs, SCM ch);
SCM_API SCM scm_char_set_every (SCM pred, SCM cs);
SCM_API SCM scm_char_set_any (SCM pred, SCM cs);
SCM_API SCM scm_char_set_adjoin (SCM cs, SCM rest);
SCM_API SCM scm_char_set_delete (SCM cs, SCM rest);
SCM_API SCM scm_char_set_adjoin_x (SCM cs, SCM rest);
SCM_API SCM scm_char_set_delete_x (SCM cs, SCM rest);
SCM_API SCM scm_char_set_complement (SCM cs);
SCM_API SCM scm_char_set_union (SCM rest);
SCM_API SCM scm_char_set_intersection (SCM rest);
SCM_API SCM scm_char_set_difference (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_xor (SCM rest);
SCM_API SCM scm_char_set_diff_plus_intersection (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_complement_x (SCM cs);
SCM_API SCM scm_char_set_union_x (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_intersection_x (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_difference_x (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_xor_x (SCM cs1, SCM rest);
SCM_API SCM scm_char_set_diff_plus_intersection_x (SCM cs1, SCM cs2, SCM rest);
SCM_API SCM scm_sys_char_set_dump (SCM charset);

SCM_API SCM scm_char_set_lower_case;
SCM_API SCM scm_char_set_upper_case;
SCM_API SCM scm_char_set_title_case;
SCM_API SCM scm_char_set_letter;
SCM_API SCM scm_char_set_digit;
SCM_API SCM scm_char_set_letter_and_digit;
SCM_API SCM scm_char_set_graphic;
SCM_API SCM scm_char_set_printing;
SCM_API SCM scm_char_set_whitespace;
SCM_API SCM scm_char_set_iso_control;
SCM_API SCM scm_char_set_punctuation;
SCM_API SCM scm_char_set_symbol;
SCM_API SCM scm_char_set_hex_digit;
SCM_API SCM scm_char_set_blank;
SCM_API SCM scm_char_set_ascii;
SCM_API SCM scm_char_set_empty;
SCM_API SCM scm_char_set_full;

SCM_INTERNAL void scm_init_srfi_14 (void);

#endif /* SCM_SRFI_14_H */