root/ext/mbstring/oniguruma/enc/iso8859_7.c

DEFINITIONS

1. mbc_case_fold
2. is_mbc_ambiguous
3. is_code_ctype
4. apply_all_case_fold
5. get_case_fold_codes_by_str

   1 /**********************************************************************
   2   iso8859_7.c -  Oniguruma (regular expression library)
   3 **********************************************************************/
   4 /*-
   5  * Copyright (c) 2002-2007  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 #include "regenc.h"
  31 
  32 #define ENC_ISO_8859_7_TO_LOWER_CASE(c) EncISO_8859_7_ToLowerCaseTable[c]
  33 #define ENC_IS_ISO_8859_7_CTYPE(code,ctype) \
  34   ((EncISO_8859_7_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
  35 
  36 static const UChar EncISO_8859_7_ToLowerCaseTable[256] = {
  37   '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
  38   '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
  39   '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
  40   '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
  41   '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
  42   '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
  43   '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
  44   '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
  45   '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
  46   '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
  47   '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
  48   '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
  49   '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
  50   '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
  51   '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
  52   '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
  53   '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
  54   '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
  55   '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
  56   '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
  57   '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
  58   '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
  59   '\260', '\261', '\262', '\263', '\264', '\265', '\334', '\267',
  60   '\335', '\336', '\337', '\273', '\374', '\275', '\375', '\376',
  61   '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
  62   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
  63   '\360', '\361', '\322', '\363', '\364', '\365', '\366', '\367',
  64   '\370', '\371', '\372', '\373', '\334', '\335', '\336', '\337',
  65   '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
  66   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
  67   '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
  68   '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
  69 };
  70 
  71 static const unsigned short EncISO_8859_7_CtypeTable[256] = {
  72   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  73   0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
  74   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  75   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  76   0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  77   0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  78   0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
  79   0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  80   0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
  81   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  82   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  83   0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
  84   0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
  85   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  86   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  87   0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
  88   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  89   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  90   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  91   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  92   0x0284, 0x01a0, 0x01a0, 0x00a0, 0x0000, 0x0000, 0x00a0, 0x00a0,
  93   0x00a0, 0x00a0, 0x0000, 0x01a0, 0x00a0, 0x01a0, 0x0000, 0x01a0,
  94   0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x00a0, 0x34a2, 0x01a0,
  95   0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x10a0, 0x34a2, 0x34a2,
  96   0x30e2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  97   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  98   0x34a2, 0x34a2, 0x0000, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  99   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
 100   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
 101   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
 102   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
 103   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x0000
 104 };
 105 
 106 static int
 107 mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,
 108               const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower)
 109 {
 110   const UChar* p = *pp;
 111 
 112   *lower = ENC_ISO_8859_7_TO_LOWER_CASE(*p);
 113   (*pp)++;
 114   return 1;
 115 }
 116 
 117 #if 0
 118 static int
 119 is_mbc_ambiguous(OnigCaseFoldType flag,
 120                  const UChar** pp, const UChar* end)
 121 {
 122   int v;
 123   const UChar* p = *pp;
 124 
 125   (*pp)++;
 126   v = (EncISO_8859_7_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
 127   if ((v | BIT_CTYPE_LOWER) != 0) {
 128     if (*p == 0xc0 || *p == 0xe0)
 129       return FALSE;
 130     else
 131       return TRUE;
 132   }
 133 
 134   return (v != 0 ? TRUE : FALSE);
 135 }
 136 #endif
 137 
 138 static int
 139 is_code_ctype(OnigCodePoint code, unsigned int ctype)
 140 {
 141   if (code < 256)
 142     return ENC_IS_ISO_8859_7_CTYPE(code, ctype);
 143   else
 144     return FALSE;
 145 }
 146 
 147 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
 148  { 0xb6, 0xdc },
 149  { 0xb8, 0xdd },
 150  { 0xb9, 0xde },
 151  { 0xba, 0xdf },
 152  { 0xbc, 0xfc },
 153  { 0xbe, 0xfd },
 154  { 0xbf, 0xfe },
 155 
 156  { 0xc1, 0xe1 },
 157  { 0xc2, 0xe2 },
 158  { 0xc3, 0xe3 },
 159  { 0xc4, 0xe4 },
 160  { 0xc5, 0xe5 },
 161  { 0xc6, 0xe6 },
 162  { 0xc7, 0xe7 },
 163  { 0xc8, 0xe8 },
 164  { 0xc9, 0xe9 },
 165  { 0xca, 0xea },
 166  { 0xcb, 0xeb },
 167  { 0xcc, 0xec },
 168  { 0xcd, 0xed },
 169  { 0xce, 0xee },
 170  { 0xcf, 0xef },
 171 
 172  { 0xd0, 0xf0 },
 173  { 0xd1, 0xf1 },
 174  { 0xd2, 0xf2 },
 175  { 0xd3, 0xf3 },
 176  { 0xd4, 0xf4 },
 177  { 0xd5, 0xf5 },
 178  { 0xd6, 0xf6 },
 179  { 0xd7, 0xf7 },
 180  { 0xd8, 0xf8 },
 181  { 0xd9, 0xf9 },
 182  { 0xda, 0xfa },
 183  { 0xdb, 0xfb }
 184 };
 185 
 186 static int
 187 apply_all_case_fold(OnigCaseFoldType flag,
 188                     OnigApplyAllCaseFoldFunc f, void* arg)
 189 {
 190   return onigenc_apply_all_case_fold_with_map(
 191              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
 192              flag, f, arg);
 193 }
 194 
 195 static int
 196 get_case_fold_codes_by_str(OnigCaseFoldType flag,
 197    const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
 198 {
 199   return onigenc_get_case_fold_codes_by_str_with_map(
 200              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
 201              flag, p, end, items);
 202 }
 203 
 204 
 205 OnigEncodingType OnigEncodingISO_8859_7 = {
 206   onigenc_single_byte_mbc_enc_len,
 207   "ISO-8859-7",  /* name */
 208   1,             /* max enc length */
 209   1,             /* min enc length */
 210   onigenc_is_mbc_newline_0x0a,
 211   onigenc_single_byte_mbc_to_code,
 212   onigenc_single_byte_code_to_mbclen,
 213   onigenc_single_byte_code_to_mbc,
 214   mbc_case_fold,
 215   apply_all_case_fold,
 216   get_case_fold_codes_by_str,
 217   onigenc_minimum_property_name_to_ctype,
 218   is_code_ctype,
 219   onigenc_not_support_get_ctype_code_range,
 220   onigenc_single_byte_left_adjust_char_head,
 221   onigenc_always_true_is_allowed_reverse_match
 222 };