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enc/iso_8859_14.c

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00001 /**********************************************************************
00002   iso8859_14.c -  Oniguruma (regular expression library)
00003 **********************************************************************/
00004 /*-
00005  * Copyright (c) 2002-2007  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
00006  * All rights reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  * 2. Redistributions in binary form must reproduce the above copyright
00014  *    notice, this list of conditions and the following disclaimer in the
00015  *    documentation and/or other materials provided with the distribution.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  */
00029 
00030 #include "regenc.h"
00031 
00032 #define ENC_ISO_8859_14_TO_LOWER_CASE(c) EncISO_8859_14_ToLowerCaseTable[c]
00033 #define ENC_IS_ISO_8859_14_CTYPE(code,ctype) \
00034   ((EncISO_8859_14_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
00035 
00036 static const UChar EncISO_8859_14_ToLowerCaseTable[256] = {
00037   '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
00038   '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
00039   '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
00040   '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
00041   '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
00042   '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
00043   '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
00044   '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
00045   '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
00046   '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
00047   '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
00048   '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
00049   '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
00050   '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
00051   '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
00052   '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
00053   '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
00054   '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
00055   '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
00056   '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
00057   '\240', '\242', '\242', '\243', '\245', '\245', '\253', '\247',
00058   '\270', '\251', '\272', '\253', '\274', '\255', '\256', '\377',
00059   '\261', '\261', '\263', '\263', '\265', '\265', '\266', '\271',
00060   '\270', '\271', '\272', '\277', '\274', '\276', '\276', '\277',
00061   '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
00062   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
00063   '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
00064   '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
00065   '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
00066   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
00067   '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
00068   '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
00069 };
00070 
00071 static const unsigned short EncISO_8859_14_CtypeTable[256] = {
00072   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
00073   0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
00074   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
00075   0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
00076   0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
00077   0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
00078   0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
00079   0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
00080   0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
00081   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
00082   0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
00083   0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
00084   0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
00085   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
00086   0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
00087   0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
00088   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
00089   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
00090   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
00091   0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
00092   0x0284, 0x34a2, 0x30e2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x00a0,
00093   0x34a2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x01a0, 0x00a0, 0x34a2,
00094   0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x00a0, 0x34a2,
00095   0x30e2, 0x30e2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x30e2,
00096   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00097   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00098   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00099   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
00100   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00101   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00102   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00103   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
00104 };
00105 
00106 static int
00107 mbc_case_fold(OnigCaseFoldType flag,
00108                           const UChar** pp, const UChar* end ARG_UNUSED,
00109                           UChar* lower, OnigEncoding enc ARG_UNUSED)
00110 {
00111   const UChar* p = *pp;
00112 
00113   if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
00114     *lower++ = 's';
00115     *lower   = 's';
00116     (*pp)++;
00117     return 2;
00118   }
00119 
00120   *lower = ENC_ISO_8859_14_TO_LOWER_CASE(*p);
00121   (*pp)++;
00122   return 1; /* return byte length of converted char to lower */
00123 }
00124 
00125 #if 0
00126 static int
00127 is_mbc_ambiguous(OnigCaseFoldType flag,
00128                  const UChar** pp, const UChar* end)
00129 {
00130   int v;
00131   const UChar* p = *pp;
00132 
00133   if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
00134     (*pp)++;
00135     return TRUE;
00136   }
00137 
00138   (*pp)++;
00139   v = (EncISO_8859_14_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
00140   if ((v | BIT_CTYPE_LOWER) != 0) {
00141     return TRUE;
00142   }
00143 
00144   return (v != 0 ? TRUE : FALSE);
00145 }
00146 #endif
00147 
00148 static int
00149 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
00150 {
00151   if (code < 256)
00152     return ENC_IS_ISO_8859_14_CTYPE(code, ctype);
00153   else
00154     return FALSE;
00155 }
00156 
00157 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
00158  { 0xa1, 0xa2 },
00159  { 0xa4, 0xa5 },
00160  { 0xa6, 0xab },
00161  { 0xa8, 0xb8 },
00162  { 0xaa, 0xba },
00163  { 0xac, 0xbc },
00164  { 0xaf, 0xff },
00165 
00166  { 0xb0, 0xb1 },
00167  { 0xb2, 0xb3 },
00168  { 0xb4, 0xb5 },
00169  { 0xb7, 0xb9 },
00170  { 0xbb, 0xbf },
00171  { 0xbd, 0xbe },
00172 
00173  { 0xc0, 0xe0 },
00174  { 0xc1, 0xe1 },
00175  { 0xc2, 0xe2 },
00176  { 0xc3, 0xe3 },
00177  { 0xc4, 0xe4 },
00178  { 0xc5, 0xe5 },
00179  { 0xc6, 0xe6 },
00180  { 0xc7, 0xe7 },
00181  { 0xc8, 0xe8 },
00182  { 0xc9, 0xe9 },
00183  { 0xca, 0xea },
00184  { 0xcb, 0xeb },
00185  { 0xcc, 0xec },
00186  { 0xcd, 0xed },
00187  { 0xce, 0xee },
00188  { 0xcf, 0xef },
00189 
00190  { 0xd0, 0xf0 },
00191  { 0xd1, 0xf1 },
00192  { 0xd2, 0xf2 },
00193  { 0xd3, 0xf3 },
00194  { 0xd4, 0xf4 },
00195  { 0xd5, 0xf5 },
00196  { 0xd6, 0xf6 },
00197  { 0xd7, 0xf7 },
00198  { 0xd8, 0xf8 },
00199  { 0xd9, 0xf9 },
00200  { 0xda, 0xfa },
00201  { 0xdb, 0xfb },
00202  { 0xdc, 0xfc },
00203  { 0xdd, 0xfd },
00204  { 0xde, 0xfe }
00205 };
00206 
00207 static int
00208 apply_all_case_fold(OnigCaseFoldType flag,
00209                                 OnigApplyAllCaseFoldFunc f, void* arg,
00210                                 OnigEncoding enc ARG_UNUSED)
00211 {
00212   return onigenc_apply_all_case_fold_with_map(
00213              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
00214              flag, f, arg);
00215 }
00216 
00217 static int
00218 get_case_fold_codes_by_str(OnigCaseFoldType flag,
00219                                        const OnigUChar* p, const OnigUChar* end,
00220                                        OnigCaseFoldCodeItem items[],
00221                                        OnigEncoding enc ARG_UNUSED)
00222 {
00223   return onigenc_get_case_fold_codes_by_str_with_map(
00224              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
00225              flag, p, end, items);
00226 }
00227 
00228 OnigEncodingDefine(iso_8859_14, ISO_8859_14) = {
00229   onigenc_single_byte_mbc_enc_len,
00230   "ISO-8859-14",  /* name */
00231   1,             /* max enc length */
00232   1,             /* min enc length */
00233   onigenc_is_mbc_newline_0x0a,
00234   onigenc_single_byte_mbc_to_code,
00235   onigenc_single_byte_code_to_mbclen,
00236   onigenc_single_byte_code_to_mbc,
00237   mbc_case_fold,
00238   apply_all_case_fold,
00239   get_case_fold_codes_by_str,
00240   onigenc_minimum_property_name_to_ctype,
00241   is_code_ctype,
00242   onigenc_not_support_get_ctype_code_range,
00243   onigenc_single_byte_left_adjust_char_head,
00244   onigenc_always_true_is_allowed_reverse_match
00245 };
00246 ENC_ALIAS("ISO8859-14", "ISO-8859-14")
00247 

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