ext/mbstring/oniguruma/enc/iso8859

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This source file includes following definitions.
apply_all_case_fold
get_case_fold_codes_by_str
mbc_case_fold
is_mbc_ambiguous
is_code_ctype
   1 /**********************************************************************
   2   iso8859_1.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_IS_ISO_8859_1_CTYPE(code,ctype) \
  33   ((EncISO_8859_1_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
  34 
  35 static const unsigned short EncISO_8859_1_CtypeTable[256] = {
  36   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  37   0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
  38   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  39   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
  40   0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  41   0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  42   0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
  43   0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
  44   0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
  45   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  46   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
  47   0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
  48   0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
  49   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  50   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
  51   0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
  52   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  53   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  54   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  55   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
  56   0x0284, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
  57   0x00a0, 0x00a0, 0x30e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
  58   0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x30e2, 0x00a0, 0x01a0,
  59   0x00a0, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x01a0,
  60   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  61   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
  62   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
  63   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
  64   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  65   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
  66   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0,
  67   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
  68 };
  69 
  70 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
  71   { 0xc0, 0xe0 },
  72   { 0xc1, 0xe1 },
  73   { 0xc2, 0xe2 },
  74   { 0xc3, 0xe3 },
  75   { 0xc4, 0xe4 },
  76   { 0xc5, 0xe5 },
  77   { 0xc6, 0xe6 },
  78   { 0xc7, 0xe7 },
  79   { 0xc8, 0xe8 },
  80   { 0xc9, 0xe9 },
  81   { 0xca, 0xea },
  82   { 0xcb, 0xeb },
  83   { 0xcc, 0xec },
  84   { 0xcd, 0xed },
  85   { 0xce, 0xee },
  86   { 0xcf, 0xef },
  87 
  88   { 0xd0, 0xf0 },
  89   { 0xd1, 0xf1 },
  90   { 0xd2, 0xf2 },
  91   { 0xd3, 0xf3 },
  92   { 0xd4, 0xf4 },
  93   { 0xd5, 0xf5 },
  94   { 0xd6, 0xf6 },
  95   { 0xd8, 0xf8 },
  96   { 0xd9, 0xf9 },
  97   { 0xda, 0xfa },
  98   { 0xdb, 0xfb },
  99   { 0xdc, 0xfc },
 100   { 0xdd, 0xfd },
 101   { 0xde, 0xfe }
 102 };
 103 
 104 static int
 105 apply_all_case_fold(OnigCaseFoldType flag,
 106                     OnigApplyAllCaseFoldFunc f, void* arg)
 107 {
 108   return onigenc_apply_all_case_fold_with_map(
 109             sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
 110             flag, f, arg);
 111 }
 112 
 113 static int
 114 get_case_fold_codes_by_str(OnigCaseFoldType flag ARG_UNUSED,
 115                            const OnigUChar* p, const OnigUChar* end,
 116                            OnigCaseFoldCodeItem items[])
 117 {
 118   if (0x41 <= *p && *p <= 0x5a) {
 119     items[0].byte_len = 1;
 120     items[0].code_len = 1;
 121     items[0].code[0] = (OnigCodePoint )(*p + 0x20);
 122     if (*p == 0x53 && end > p + 1
 123         && (*(p+1) == 0x53 || *(p+1) == 0x73)) { /* SS */
 124       items[1].byte_len = 2;
 125       items[1].code_len = 1;
 126       items[1].code[0] = (OnigCodePoint )0xdf;
 127       return 2;
 128     }
 129     else
 130       return 1;
 131   }
 132   else if (0x61 <= *p && *p <= 0x7a) {
 133     items[0].byte_len = 1;
 134     items[0].code_len = 1;
 135     items[0].code[0] = (OnigCodePoint )(*p - 0x20);
 136     if (*p == 0x73 && end > p + 1
 137         && (*(p+1) == 0x73 || *(p+1) == 0x53)) { /* ss */
 138       items[1].byte_len = 2;
 139       items[1].code_len = 1;
 140       items[1].code[0] = (OnigCodePoint )0xdf;
 141       return 2;
 142     }
 143     else
 144       return 1;
 145   }
 146   else if (0xc0 <= *p && *p <= 0xcf) {
 147     items[0].byte_len = 1;
 148     items[0].code_len = 1;
 149     items[0].code[0] = (OnigCodePoint )(*p + 0x20);
 150     return 1;
 151   }
 152   else if (0xd0 <= *p && *p <= 0xdf) {
 153     if (*p == 0xdf) {
 154       items[0].byte_len = 1;
 155       items[0].code_len = 2;
 156       items[0].code[0] = (OnigCodePoint )'s';
 157       items[0].code[1] = (OnigCodePoint )'s';
 158 
 159       items[1].byte_len = 1;
 160       items[1].code_len = 2;
 161       items[1].code[0] = (OnigCodePoint )'S';
 162       items[1].code[1] = (OnigCodePoint )'S';
 163 
 164       items[2].byte_len = 1;
 165       items[2].code_len = 2;
 166       items[2].code[0] = (OnigCodePoint )'s';
 167       items[2].code[1] = (OnigCodePoint )'S';
 168 
 169       items[3].byte_len = 1;
 170       items[3].code_len = 2;
 171       items[3].code[0] = (OnigCodePoint )'S';
 172       items[3].code[1] = (OnigCodePoint )'s';
 173 
 174       return 4;
 175     }
 176     else if (*p != 0xd7) {
 177       items[0].byte_len = 1;
 178       items[0].code_len = 1;
 179       items[0].code[0] = (OnigCodePoint )(*p + 0x20);
 180       return 1;
 181     }
 182   }
 183   else if (0xe0 <= *p && *p <= 0xef) {
 184     items[0].byte_len = 1;
 185     items[0].code_len = 1;
 186     items[0].code[0] = (OnigCodePoint )(*p - 0x20);
 187     return 1;
 188   }
 189   else if (0xf0 <= *p && *p <= 0xfe) {
 190     if (*p != 0xf7) {
 191       items[0].byte_len = 1;
 192       items[0].code_len = 1;
 193       items[0].code[0] = (OnigCodePoint )(*p - 0x20);
 194       return 1;
 195     }
 196   }
 197 
 198   return 0;
 199 }
 200 
 201 static int
 202 mbc_case_fold(OnigCaseFoldType flag, const UChar** pp,
 203               const UChar* end ARG_UNUSED, UChar* lower)
 204 {
 205   const UChar* p = *pp;
 206 
 207   if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
 208     *lower++ = 's';
 209     *lower   = 's';
 210     (*pp)++;
 211     return 2;
 212   }
 213 
 214   *lower = ONIGENC_ISO_8859_1_TO_LOWER_CASE(*p);
 215   (*pp)++;
 216   return 1;
 217 }
 218 
 219 #if 0
 220 static int
 221 is_mbc_ambiguous(OnigCaseFoldType flag,
 222                  const UChar** pp, const UChar* end)
 223 {
 224   int v;
 225   const UChar* p = *pp;
 226 
 227   if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
 228     (*pp)++;
 229     return TRUE;
 230   }
 231 
 232   (*pp)++;
 233   v = (EncISO_8859_1_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
 234   if ((v | BIT_CTYPE_LOWER) != 0) {
 235     /* 0xdf, 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */
 236     if (*p >= 0xaa && *p <= 0xba)
 237       return FALSE;
 238     else
 239       return TRUE;
 240   }
 241 
 242   return (v != 0 ? TRUE : FALSE);
 243 }
 244 #endif
 245 
 246 static int
 247 is_code_ctype(OnigCodePoint code, unsigned int ctype)
 248 {
 249   if (code < 256)
 250     return ENC_IS_ISO_8859_1_CTYPE(code, ctype);
 251   else
 252     return FALSE;
 253 }
 254 
 255 OnigEncodingType OnigEncodingISO_8859_1 = {
 256   onigenc_single_byte_mbc_enc_len,
 257   "ISO-8859-1",  /* name */
 258   1,             /* max enc length */
 259   1,             /* min enc length */
 260   onigenc_is_mbc_newline_0x0a,
 261   onigenc_single_byte_mbc_to_code,
 262   onigenc_single_byte_code_to_mbclen,
 263   onigenc_single_byte_code_to_mbc,
 264   mbc_case_fold,
 265   apply_all_case_fold,
 266   get_case_fold_codes_by_str,
 267   onigenc_minimum_property_name_to_ctype,
 268   is_code_ctype,
 269   onigenc_not_support_get_ctype_code_range,
 270   onigenc_single_byte_left_adjust_char_head,
 271   onigenc_always_true_is_allowed_reverse_match
 272 };
/* [<][>][^][v][top][bottom][index][help] */
root/ext/mbstring/oniguruma/enc/iso8859_1.c

DEFINITIONS
