#ifndef REGENC_H

#define REGENC_H

/**********************************************************************

  regenc.h -  Oniguruma (regular expression library)

**********************************************************************/

/*-

 * Copyright (c) 2002-2018  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#ifndef ONIGURUMA_EXPORT

#define ONIGURUMA_EXPORT

#endif

#include "config.h"

#ifdef ONIG_ESCAPE_UCHAR_COLLISION

#undef ONIG_ESCAPE_UCHAR_COLLISION

#endif

#include "oniguruma.h"

typedef struct {

  OnigCodePoint from;

  OnigCodePoint to;

} OnigPairCaseFoldCodes;

#ifndef NULL

#define NULL   ((void* )0)

#endif

#ifndef TRUE

#define TRUE    1

#endif

#ifndef FALSE

#define FALSE   0

#endif

#ifndef ARG_UNUSED

#if defined(__GNUC__)

#  define ARG_UNUSED  __attribute__ ((unused))

#else

#  define ARG_UNUSED

#endif

#endif

#define ONIG_IS_NULL(p)                    (((void*)(p)) == (void*)0)

#define ONIG_IS_NOT_NULL(p)                (((void*)(p)) != (void*)0)

#define ONIG_CHECK_NULL_RETURN(p)          if (ONIG_IS_NULL(p)) return NULL

#define ONIG_CHECK_NULL_RETURN_VAL(p,val)  if (ONIG_IS_NULL(p)) return (val)

#define MAX_CODE_POINT         (~((OnigCodePoint )0))

#define enclen(enc,p)          ONIGENC_MBC_ENC_LEN(enc,p)

/* character types bit flag */

#define BIT_CTYPE_NEWLINE  (1<< ONIGENC_CTYPE_NEWLINE)

#define BIT_CTYPE_ALPHA    (1<< ONIGENC_CTYPE_ALPHA)

#define BIT_CTYPE_BLANK    (1<< ONIGENC_CTYPE_BLANK)

#define BIT_CTYPE_CNTRL    (1<< ONIGENC_CTYPE_CNTRL)

#define BIT_CTYPE_DIGIT    (1<< ONIGENC_CTYPE_DIGIT)

#define BIT_CTYPE_GRAPH    (1<< ONIGENC_CTYPE_GRAPH)

#define BIT_CTYPE_LOWER    (1<< ONIGENC_CTYPE_LOWER)

#define BIT_CTYPE_PRINT    (1<< ONIGENC_CTYPE_PRINT)

#define BIT_CTYPE_PUNCT    (1<< ONIGENC_CTYPE_PUNCT)

#define BIT_CTYPE_SPACE    (1<< ONIGENC_CTYPE_SPACE)

#define BIT_CTYPE_UPPER    (1<< ONIGENC_CTYPE_UPPER)

#define BIT_CTYPE_XDIGIT   (1<< ONIGENC_CTYPE_XDIGIT)

#define BIT_CTYPE_WORD     (1<< ONIGENC_CTYPE_WORD)

#define BIT_CTYPE_ALNUM    (1<< ONIGENC_CTYPE_ALNUM)

#define BIT_CTYPE_ASCII    (1<< ONIGENC_CTYPE_ASCII)

#define CTYPE_TO_BIT(ctype)  (1<<(ctype))

#define CTYPE_IS_WORD_GRAPH_PRINT(ctype) \

  ((ctype) == ONIGENC_CTYPE_WORD || (ctype) == ONIGENC_CTYPE_GRAPH ||\

   (ctype) == ONIGENC_CTYPE_PRINT)

typedef struct {

  UChar    *name;

  int       ctype;

  short int len;

} PosixBracketEntryType;

struct PropertyNameCtype {

  char *name;

  int ctype;

};

/* #define USE_CRNL_AS_LINE_TERMINATOR */

#define USE_UNICODE_PROPERTIES

#define USE_UNICODE_EXTENDED_GRAPHEME_CLUSTER

/* #define USE_UNICODE_CASE_FOLD_TURKISH_AZERI */

/* #define USE_UNICODE_ALL_LINE_TERMINATORS */  /* see Unicode.org UTS #18 */

#define ONIG_ENCODING_INIT_DEFAULT           ONIG_ENCODING_ASCII

#define ENC_FLAG_ASCII_COMPATIBLE      (1<<0)

#define ENC_FLAG_UNICODE               (1<<1)

/* for encoding system implementation (internal) */

extern int onigenc_end(void);

extern int onigenc_ascii_apply_all_case_fold P_((OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));

extern int onigenc_ascii_get_case_fold_codes_by_str P_((OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));

extern int onigenc_apply_all_case_fold_with_map P_((int map_size, const OnigPairCaseFoldCodes map[], int ess_tsett_flag, OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));

extern int onigenc_get_case_fold_codes_by_str_with_map P_((int map_size, const OnigPairCaseFoldCodes map[], int ess_tsett_flag, OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));

extern int onigenc_not_support_get_ctype_code_range P_((OnigCtype ctype, OnigCodePoint* sb_out, const OnigCodePoint* ranges[]));

extern int onigenc_is_mbc_newline_0x0a P_((const UChar* p, const UChar* end));

/* methods for single byte encoding */

extern int onigenc_ascii_mbc_case_fold P_((OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower));

extern int onigenc_single_byte_mbc_enc_len P_((const UChar* p));

extern OnigCodePoint onigenc_single_byte_mbc_to_code P_((const UChar* p, const UChar* end));

extern int onigenc_single_byte_code_to_mbclen P_((OnigCodePoint code));

extern int onigenc_single_byte_code_to_mbc P_((OnigCodePoint code, UChar *buf));

extern UChar* onigenc_single_byte_left_adjust_char_head P_((const UChar* start, const UChar* s));

extern int onigenc_always_true_is_allowed_reverse_match P_((const UChar* s, const UChar* end));

extern int onigenc_always_false_is_allowed_reverse_match P_((const UChar* s, const UChar* end));

extern int onigenc_always_true_is_valid_mbc_string P_((const UChar* s, const UChar* end));

extern int onigenc_length_check_is_valid_mbc_string P_((OnigEncoding enc, const UChar* s, const UChar* end));

/* methods for multi byte encoding */

extern OnigCodePoint onigenc_mbn_mbc_to_code P_((OnigEncoding enc, const UChar* p, const UChar* end));

extern int onigenc_mbn_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower));

extern int onigenc_mb2_code_to_mbclen P_((OnigCodePoint code));

extern int onigenc_mb2_code_to_mbc P_((OnigEncoding enc, OnigCodePoint code, UChar *buf));

extern int onigenc_minimum_property_name_to_ctype P_((OnigEncoding enc, UChar* p, UChar* end));

extern int onigenc_unicode_property_name_to_ctype P_((OnigEncoding enc, UChar* p, UChar* end));

extern int onigenc_is_mbc_word_ascii P_((OnigEncoding enc, UChar* s, const UChar* end));

extern int onigenc_mb2_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));

extern int onigenc_mb4_code_to_mbclen P_((OnigCodePoint code));

extern int onigenc_mb4_code_to_mbc P_((OnigEncoding enc, OnigCodePoint code, UChar *buf));

extern int onigenc_mb4_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));

extern struct PropertyNameCtype* euc_jp_lookup_property_name P_((register const char *str, register unsigned int len));

extern struct PropertyNameCtype* sjis_lookup_property_name P_((register const char *str, register unsigned int len));

/* extern const struct PropertyNameCtype* unicode_lookup_property_name P_((register const char *str, register unsigned int len)); */

/* in enc/unicode.c */

extern int onigenc_unicode_is_code_ctype P_((OnigCodePoint code, unsigned int ctype));

extern int onigenc_utf16_32_get_ctype_code_range P_((OnigCtype ctype, OnigCodePoint *sb_out, const OnigCodePoint* ranges[]));

extern int onigenc_unicode_ctype_code_range P_((OnigCtype ctype, const OnigCodePoint* ranges[]));

extern int onigenc_unicode_get_case_fold_codes_by_str P_((OnigEncoding enc, OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));

extern int onigenc_unicode_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** pp, const UChar* end, UChar* fold));

extern int onigenc_unicode_apply_all_case_fold P_((OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));

extern int onigenc_egcb_is_break_position P_((OnigEncoding enc, UChar* p, UChar* prev, const UChar* start, const UChar* end));

#define UTF16_IS_SURROGATE_FIRST(c)    (((c) & 0xfc) == 0xd8)

#define UTF16_IS_SURROGATE_SECOND(c)   (((c) & 0xfc) == 0xdc)

/* from unicode generated codes */

#define FOLDS1_FOLD(i)         (OnigUnicodeFolds1 + (i))

#define FOLDS2_FOLD(i)         (OnigUnicodeFolds2 + (i))

#define FOLDS3_FOLD(i)         (OnigUnicodeFolds3 + (i))

#define FOLDS1_UNFOLDS_NUM(i)  (OnigUnicodeFolds1[(i)+1])

#define FOLDS2_UNFOLDS_NUM(i)  (OnigUnicodeFolds2[(i)+2])

#define FOLDS3_UNFOLDS_NUM(i)  (OnigUnicodeFolds3[(i)+3])

#define FOLDS1_UNFOLDS(i)      (OnigUnicodeFolds1 + (i) + 2)

#define FOLDS2_UNFOLDS(i)      (OnigUnicodeFolds2 + (i) + 3)

#define FOLDS3_UNFOLDS(i)      (OnigUnicodeFolds3 + (i) + 4)

#define FOLDS1_NEXT_INDEX(i)   ((i) + 2 + OnigUnicodeFolds1[(i)+1])

#define FOLDS2_NEXT_INDEX(i)   ((i) + 3 + OnigUnicodeFolds2[(i)+2])

#define FOLDS3_NEXT_INDEX(i)   ((i) + 4 + OnigUnicodeFolds3[(i)+3])

#define FOLDS_FOLD_ADDR_BUK(buk, addr) do {\

  if ((buk)->fold_len == 1)\

    addr = OnigUnicodeFolds1 + (buk)->index;\

  else if ((buk)->fold_len == 2)\

    addr = OnigUnicodeFolds2 + (buk)->index;\

  else if ((buk)->fold_len == 3)\

    addr = OnigUnicodeFolds3 + (buk)->index;\

  else\

    addr = 0;\

} while (0)

extern OnigCodePoint OnigUnicodeFolds1[];

extern OnigCodePoint OnigUnicodeFolds2[];

extern OnigCodePoint OnigUnicodeFolds3[];

struct ByUnfoldKey {

  OnigCodePoint code;

  short int     index;

  short int     fold_len;

};

extern const struct ByUnfoldKey* unicode_unfold_key(OnigCodePoint code);

extern int unicode_fold1_key(OnigCodePoint code[]);

extern int unicode_fold2_key(OnigCodePoint code[]);

extern int unicode_fold3_key(OnigCodePoint code[]);

extern int onig_codes_cmp(OnigCodePoint a[], OnigCodePoint b[], int n);

extern int onig_codes_byte_at(OnigCodePoint code[], int at);

#define ONIGENC_ISO_8859_1_TO_LOWER_CASE(c) \

  OnigEncISO_8859_1_ToLowerCaseTable[c]

#define ONIGENC_ISO_8859_1_TO_UPPER_CASE(c) \

  OnigEncISO_8859_1_ToUpperCaseTable[c]

extern const UChar OnigEncISO_8859_1_ToLowerCaseTable[];

extern const UChar OnigEncISO_8859_1_ToUpperCaseTable[];

extern int

onigenc_with_ascii_strncmp P_((OnigEncoding enc, const UChar* p, const UChar* end, const UChar* sascii /* ascii */, int n));

extern UChar*

onigenc_step P_((OnigEncoding enc, const UChar* p, const UChar* end, int n));

/* defined in regexec.c, but used in enc/xxx.c */

extern int  onig_is_in_code_range P_((const UChar* p, OnigCodePoint code));

extern OnigEncoding  OnigEncDefaultCharEncoding;

extern const UChar  OnigEncAsciiToLowerCaseTable[];

extern const UChar  OnigEncAsciiToUpperCaseTable[];

extern const unsigned short OnigEncAsciiCtypeTable[];

#define ONIGENC_IS_ASCII_CODE(code)  ((code) < 0x80)

#define ONIGENC_ASCII_CODE_TO_LOWER_CASE(c) OnigEncAsciiToLowerCaseTable[c]

#define ONIGENC_ASCII_CODE_TO_UPPER_CASE(c) OnigEncAsciiToUpperCaseTable[c]

#define ONIGENC_IS_ASCII_CODE_CTYPE(code,ctype) \

  ((OnigEncAsciiCtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)

#define ONIGENC_IS_ASCII_CODE_WORD(code) \

  ((OnigEncAsciiCtypeTable[code] & CTYPE_TO_BIT(ONIGENC_CTYPE_WORD)) != 0)

#define ONIGENC_IS_ASCII_CODE_CASE_AMBIG(code) \

 (ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_UPPER) ||\

  ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_LOWER))

#define ONIGENC_IS_UNICODE_ENCODING(enc) \

  (((enc)->flag & ENC_FLAG_UNICODE) != 0)

#define ONIGENC_IS_ASCII_COMPATIBLE_ENCODING(enc)  \

  (((enc)->flag & ENC_FLAG_ASCII_COMPATIBLE) != 0)

#endif /* REGENC_H */