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

  iso8859_7.c -  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.

 */

#include "regenc.h"

#define ENC_ISO_8859_7_TO_LOWER_CASE(c) EncISO_8859_7_ToLowerCaseTable[c]

#define ENC_IS_ISO_8859_7_CTYPE(code,ctype) \

  ((EncISO_8859_7_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)

static const UChar EncISO_8859_7_ToLowerCaseTable[256] = {

  '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',

  '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',

  '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',

  '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',

  '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',

  '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',

  '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',

  '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',

  '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',

  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',

  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',

  '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',

  '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',

  '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',

  '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',

  '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',

  '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',

  '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',

  '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',

  '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',

  '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',

  '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',

  '\260', '\261', '\262', '\263', '\264', '\265', '\334', '\267',

  '\335', '\336', '\337', '\273', '\374', '\275', '\375', '\376',

  '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',

  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',

  '\360', '\361', '\322', '\363', '\364', '\365', '\366', '\367',

  '\370', '\371', '\372', '\373', '\334', '\335', '\336', '\337',

  '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',

  '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',

  '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',

  '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'

};

static const unsigned short EncISO_8859_7_CtypeTable[256] = {

  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,

  0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,

  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,

  0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,

  0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,

  0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,

  0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,

  0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,

  0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,

  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,

  0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,

  0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,

  0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,

  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,

  0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,

  0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,

  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,

  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,

  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,

  0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,

  0x0284, 0x01a0, 0x01a0, 0x00a0, 0x0000, 0x0000, 0x00a0, 0x00a0,

  0x00a0, 0x00a0, 0x0000, 0x01a0, 0x00a0, 0x01a0, 0x0000, 0x01a0,

  0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x00a0, 0x34a2, 0x01a0,

  0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x10a0, 0x34a2, 0x34a2,

  0x30e2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,

  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,

  0x34a2, 0x34a2, 0x0000, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,

  0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,

  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,

  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,

  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,

  0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x0000

};

static int

mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,

	      const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower)

{

  const UChar* p = *pp;

  *lower = ENC_ISO_8859_7_TO_LOWER_CASE(*p);

  (*pp)++;

  return 1;

}

#if 0

static int

is_mbc_ambiguous(OnigCaseFoldType flag,

		 const UChar** pp, const UChar* end)

{

  int v;

  const UChar* p = *pp;

  (*pp)++;

  v = (EncISO_8859_7_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));

  if ((v | BIT_CTYPE_LOWER) != 0) {

    if (*p == 0xc0 || *p == 0xe0)

      return FALSE;

    else

      return TRUE;

  }

  return (v != 0 ? TRUE : FALSE);

}

#endif

static int

is_code_ctype(OnigCodePoint code, unsigned int ctype)

{

  if (code < 256)

    return ENC_IS_ISO_8859_7_CTYPE(code, ctype);

  else

    return FALSE;

}

static const OnigPairCaseFoldCodes CaseFoldMap[] = {

 { 0xb6, 0xdc },

 { 0xb8, 0xdd },

 { 0xb9, 0xde },

 { 0xba, 0xdf },

 { 0xbc, 0xfc },

 { 0xbe, 0xfd },

 { 0xbf, 0xfe },

 { 0xc1, 0xe1 },

 { 0xc2, 0xe2 },

 { 0xc3, 0xe3 },

 { 0xc4, 0xe4 },

 { 0xc5, 0xe5 },

 { 0xc6, 0xe6 },

 { 0xc7, 0xe7 },

 { 0xc8, 0xe8 },

 { 0xc9, 0xe9 },

 { 0xca, 0xea },

 { 0xcb, 0xeb },

 { 0xcc, 0xec },

 { 0xcd, 0xed },

 { 0xce, 0xee },

 { 0xcf, 0xef },

 { 0xd0, 0xf0 },

 { 0xd1, 0xf1 },

 { 0xd2, 0xf2 },

 { 0xd3, 0xf3 },

 { 0xd4, 0xf4 },

 { 0xd5, 0xf5 },

 { 0xd6, 0xf6 },

 { 0xd7, 0xf7 },

 { 0xd8, 0xf8 },

 { 0xd9, 0xf9 },

 { 0xda, 0xfa },

 { 0xdb, 0xfb }

};

static int

apply_all_case_fold(OnigCaseFoldType flag,

		    OnigApplyAllCaseFoldFunc f, void* arg)

{

  return onigenc_apply_all_case_fold_with_map(

             sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,

             flag, f, arg);

}

static int

get_case_fold_codes_by_str(OnigCaseFoldType flag,

   const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])

{

  return onigenc_get_case_fold_codes_by_str_with_map(

	     sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,

	     flag, p, end, items);

}

OnigEncodingType OnigEncodingISO_8859_7 = {

  onigenc_single_byte_mbc_enc_len,

  "ISO-8859-7",  /* name */

  1,             /* max enc length */

  1,             /* min enc length */

  onigenc_is_mbc_newline_0x0a,

  onigenc_single_byte_mbc_to_code,

  onigenc_single_byte_code_to_mbclen,

  onigenc_single_byte_code_to_mbc,

  mbc_case_fold,

  apply_all_case_fold,

  get_case_fold_codes_by_str,

  onigenc_minimum_property_name_to_ctype,

  is_code_ctype,

  onigenc_not_support_get_ctype_code_range,

  onigenc_single_byte_left_adjust_char_head,

  onigenc_always_true_is_allowed_reverse_match,

  NULL, /* init */

  NULL, /* is_initialized */

  onigenc_always_true_is_valid_mbc_string,

  ENC_FLAG_ASCII_COMPATIBLE,

  0, 0

};