/*
** encoding.h - Encoding class
**
** See Copyright Notice in mruby.h
*/

#ifndef RUBY_ENCODING_H
#define RUBY_ENCODING_H 1

#if defined(__cplusplus)
extern "C" {
#endif

#include 
#include "oniguruma.h"
#include "mruby/data.h"

#define FL_USHIFT    12

#define FL_USER0     (((int)1)0 or raise exception */
#ifdef INCLUDE_ENCODING
int mrb_enc_codelen(mrb_state *mrb, int code, mrb_encoding *enc);
#else
#define mrb_enc_codelen(mrb,code,enc) 1
#endif //INCLUDE_ENCODING

/* code,ptr,encoding -> write buf */
#define mrb_enc_mbcput(c,buf,enc) ((*(buf) = (char)(c)),1)

/* start, ptr, end, encoding -> prev_char */
#define mrb_enc_prev_char(s,p,e,enc) (char *)onigenc_get_prev_char_head(enc,(UChar*)(s),(UChar*)(p),(UChar*)(e))
/* start, ptr, end, encoding -> next_char */
#define mrb_enc_left_char_head(s,p,e,enc) (char *)onigenc_get_left_adjust_char_head(enc,(UChar*)(s),(UChar*)(p),(UChar*)(e))
#define mrb_enc_right_char_head(s,p,e,enc) (char *)onigenc_get_right_adjust_char_head(enc,(UChar*)(s),(UChar*)(p),(UChar*)(e))

/* ptr, ptr, encoding -> newline_or_not */
#define mrb_enc_is_newline(p,end,enc)  ONIGENC_IS_MBC_NEWLINE(enc,(UChar*)(p),(UChar*)(end))

#define mrb_enc_isctype(c,t,enc) ONIGENC_IS_CODE_CTYPE(enc,c,t)
#define mrb_enc_isascii(c,enc) ONIGENC_IS_CODE_ASCII(c)
#define mrb_enc_isalpha(c,enc) ONIGENC_IS_CODE_ALPHA(enc,c)
#define mrb_enc_islower(c,enc) ONIGENC_IS_CODE_LOWER(enc,c)
#define mrb_enc_isupper(c,enc) ONIGENC_IS_CODE_UPPER(enc,c)
#define mrb_enc_ispunct(c,enc) ONIGENC_IS_CODE_PUNCT(enc,c)
#define mrb_enc_isalnum(c,enc) ONIGENC_IS_CODE_ALNUM(enc,c)
#define mrb_enc_isprint(c,enc) ONIGENC_IS_CODE_PRINT(enc,c)
#define mrb_enc_isspace(c,enc) ONIGENC_IS_CODE_SPACE(enc,c)
#define mrb_enc_isdigit(c,enc) ONIGENC_IS_CODE_DIGIT(enc,c)

#define mrb_enc_asciicompat(mrb, enc) (mrb_enc_mbminlen(enc)==1 && !mrb_enc_dummy_p(enc))

int mrb_enc_casefold(char *to, const char *p, const char *e, mrb_encoding *enc);
int mrb_enc_toupper(int c, mrb_encoding *enc);
int mrb_enc_tolower(int c, mrb_encoding *enc);
//ID mrb_intern3(const char*, long, mrb_encoding*);
//ID mrb_interned_id_p(const char *, long, mrb_encoding *);
int mrb_enc_symname_p(const char*, mrb_encoding*);
int mrb_enc_symname2_p(const char*, long, mrb_encoding*);
int mrb_enc_str_coderange(mrb_state *mrb, mrb_value);
long mrb_str_coderange_scan_restartable(const char*, const char*, mrb_encoding*, int*);
int mrb_enc_str_asciionly_p(mrb_state *mrb, mrb_value);
#define mrb_enc_str_asciicompat_p(mrb, str) mrb_enc_asciicompat(mrb, mrb_enc_get(mrb, str))
mrb_value mrb_enc_from_encoding(mrb_state *mrb, mrb_encoding *enc);
int mrb_enc_unicode_p(mrb_encoding *enc);
mrb_encoding *mrb_ascii8bit_encoding(mrb_state *mrb);
mrb_encoding *mrb_utf8_encoding(mrb_state *mrb);
mrb_encoding *mrb_usascii_encoding(mrb_state *mrb);
mrb_encoding *mrb_locale_encoding(mrb_state *mrb);
mrb_encoding *mrb_filesystem_encoding(mrb_state *mrb);
mrb_encoding *mrb_default_external_encoding(mrb_state *mrb);
mrb_encoding *mrb_default_internal_encoding(mrb_state *mrb);
int mrb_ascii8bit_encindex(void);
int mrb_utf8_encindex(void);
int mrb_usascii_encindex(void);
int mrb_locale_encindex(mrb_state *mrb);
int mrb_filesystem_encindex(void);
mrb_value mrb_enc_default_external(mrb_state *mrb);
mrb_value mrb_enc_default_internal(mrb_state *mrb);
void mrb_enc_set_default_external(mrb_state *mrb, mrb_value encoding);
void mrb_enc_set_default_internal(mrb_state *mrb, mrb_value encoding);
mrb_value mrb_locale_charmap(mrb_state *mrb, mrb_value klass);
mrb_value mrb_usascii_str_new_cstr(mrb_state *mrb, const char *ptr);
int mrb_str_buf_cat_escaped_char(mrb_state *mrb, mrb_value result, unsigned int c, int unicode_p);

#define ENC_DUMMY_FLAG (1