root/ext/mbstring/oniguruma/enc/koi8_r.c

DEFINITIONS

1. koi8_r_mbc_case_fold
2. koi8_r_is_mbc_ambiguous
3. koi8_r_is_code_ctype
4. koi8_r_apply_all_case_fold
5. koi8_r_get_case_fold_codes_by_str

   1 /**********************************************************************
   2   koi8_r.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_KOI8_R_TO_LOWER_CASE(c) EncKOI8_R_ToLowerCaseTable[c]
  33 #define ENC_IS_KOI8_R_CTYPE(code,ctype) \
  34   ((EncKOI8_R_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
  35 
  36 static const UChar EncKOI8_R_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', '\243', '\264', '\265', '\266', '\267',
  60   '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
  61   '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
  62   '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
  63   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
  64   '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
  65   '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
  66   '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
  67   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
  68   '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337'
  69 };
  70 
  71 static const unsigned short EncKOI8_R_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   0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  89   0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  90   0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  91   0x00a0, 0x00a0, 0x0284, 0x00a0, 0x00a0, 0x10a0, 0x01a0, 0x00a0,
  92   0x00a0, 0x00a0, 0x00a0, 0x30e2, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  93   0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  94   0x00a0, 0x00a0, 0x00a0, 0x34a2, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  95   0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  96   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  97   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  98   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  99   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
 100   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
 101   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
 102   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
 103   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2
 104 };
 105 
 106 static int
 107 koi8_r_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_KOI8_R_TO_LOWER_CASE(*p);
 113   (*pp)++;
 114   return 1;
 115 }
 116 
 117 #if 0
 118 static int
 119 koi8_r_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end)
 120 {
 121   int v;
 122   const UChar* p = *pp;
 123 
 124   (*pp)++;
 125   v = (EncKOI8_R_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
 126   return (v != 0 ? TRUE : FALSE);
 127 }
 128 #endif
 129 
 130 static int
 131 koi8_r_is_code_ctype(OnigCodePoint code, unsigned int ctype)
 132 {
 133   if (code < 256)
 134     return ENC_IS_KOI8_R_CTYPE(code, ctype);
 135   else
 136     return FALSE;
 137 }
 138 
 139 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
 140   { 0xa3, 0xb3 },
 141 
 142   { 0xc0, 0xe0 },
 143   { 0xc1, 0xe1 },
 144   { 0xc2, 0xe2 },
 145   { 0xc3, 0xe3 },
 146   { 0xc4, 0xe4 },
 147   { 0xc5, 0xe5 },
 148   { 0xc6, 0xe6 },
 149   { 0xc7, 0xe7 },
 150   { 0xc8, 0xe8 },
 151   { 0xc9, 0xe9 },
 152   { 0xca, 0xea },
 153   { 0xcb, 0xeb },
 154   { 0xcc, 0xec },
 155   { 0xcd, 0xed },
 156   { 0xce, 0xee },
 157   { 0xcf, 0xef },
 158 
 159   { 0xd0, 0xf0 },
 160   { 0xd1, 0xf1 },
 161   { 0xd2, 0xf2 },
 162   { 0xd3, 0xf3 },
 163   { 0xd4, 0xf4 },
 164   { 0xd5, 0xf5 },
 165   { 0xd6, 0xf6 },
 166   { 0xd7, 0xf7 },
 167   { 0xd8, 0xf8 },
 168   { 0xd9, 0xf9 },
 169   { 0xda, 0xfa },
 170   { 0xdb, 0xfb },
 171   { 0xdc, 0xfc },
 172   { 0xdd, 0xfd },
 173   { 0xde, 0xfe },
 174   { 0xdf, 0xff }
 175 };
 176 
 177 static int
 178 koi8_r_apply_all_case_fold(OnigCaseFoldType flag,
 179                                OnigApplyAllCaseFoldFunc f, void* arg)
 180 {
 181   return onigenc_apply_all_case_fold_with_map(
 182              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
 183              flag, f, arg);
 184 }
 185 
 186 static int
 187 koi8_r_get_case_fold_codes_by_str(OnigCaseFoldType flag,
 188     const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
 189 {
 190   return onigenc_get_case_fold_codes_by_str_with_map(
 191              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
 192              flag, p, end, items);
 193 }
 194 
 195 OnigEncodingType OnigEncodingKOI8_R = {
 196   onigenc_single_byte_mbc_enc_len,
 197   "KOI8-R",       /* name */
 198   1,             /* max enc length */
 199   1,             /* min enc length */
 200   onigenc_is_mbc_newline_0x0a,
 201   onigenc_single_byte_mbc_to_code,
 202   onigenc_single_byte_code_to_mbclen,
 203   onigenc_single_byte_code_to_mbc,
 204   koi8_r_mbc_case_fold,
 205   koi8_r_apply_all_case_fold,
 206   koi8_r_get_case_fold_codes_by_str,
 207   onigenc_minimum_property_name_to_ctype,
 208   koi8_r_is_code_ctype,
 209   onigenc_not_support_get_ctype_code_range,
 210   onigenc_single_byte_left_adjust_char_head,
 211   onigenc_always_true_is_allowed_reverse_match
 212 };