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enc/iso_8859_5.c

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00001 /**********************************************************************
00002   iso8859_5.c -  Oniguruma (regular expression library)
00003 **********************************************************************/
00004 /*-
00005  * Copyright (c) 2002-2008  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_5_TO_LOWER_CASE(c) EncISO_8859_5_ToLowerCaseTable[c]
00033 #define ENC_IS_ISO_8859_5_CTYPE(code,ctype) \
00034   ((EncISO_8859_5_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
00035 
00036 static const UChar EncISO_8859_5_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', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
00058   '\370', '\371', '\372', '\373', '\374', '\255', '\376', '\377',
00059   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
00060   '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
00061   '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
00062   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
00063   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
00064   '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\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_5_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, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00093   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x34a2,
00094   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00095   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00096   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00097   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
00098   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00099   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00100   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00101   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00102   0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
00103   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0, 0x30e2, 0x30e2
00104 };
00105 
00106 static int
00107 mbc_case_fold(OnigCaseFoldType flag,
00108               const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower,
00109               OnigEncoding enc ARG_UNUSED)
00110 {
00111   const UChar* p = *pp;
00112 
00113   *lower = ENC_ISO_8859_5_TO_LOWER_CASE(*p);
00114   (*pp)++;
00115   return 1;
00116 }
00117 
00118 #if 0
00119 static int
00120 is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end)
00121 {
00122   int v;
00123   const UChar* p = *pp;
00124 
00125   (*pp)++;
00126   v = (EncISO_8859_5_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
00127   return (v != 0 ? TRUE : FALSE);
00128 }
00129 #endif
00130 
00131 static int
00132 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
00133 {
00134   if (code < 256)
00135     return ENC_IS_ISO_8859_5_CTYPE(code, ctype);
00136   else
00137     return FALSE;
00138 }
00139 
00140 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
00141  { 0xa1, 0xf1 },
00142  { 0xa2, 0xf2 },
00143  { 0xa3, 0xf3 },
00144  { 0xa4, 0xf4 },
00145  { 0xa5, 0xf5 },
00146  { 0xa6, 0xf6 },
00147  { 0xa7, 0xf7 },
00148  { 0xa8, 0xf8 },
00149  { 0xa9, 0xf9 },
00150  { 0xaa, 0xfa },
00151  { 0xab, 0xfb },
00152  { 0xac, 0xfc },
00153  { 0xae, 0xfe },
00154  { 0xaf, 0xff },
00155 
00156  { 0xb0, 0xd0 },
00157  { 0xb1, 0xd1 },
00158  { 0xb2, 0xd2 },
00159  { 0xb3, 0xd3 },
00160  { 0xb4, 0xd4 },
00161  { 0xb5, 0xd5 },
00162  { 0xb6, 0xd6 },
00163  { 0xb7, 0xd7 },
00164  { 0xb8, 0xd8 },
00165  { 0xb9, 0xd9 },
00166  { 0xba, 0xda },
00167  { 0xbb, 0xdb },
00168  { 0xbc, 0xdc },
00169  { 0xbd, 0xdd },
00170  { 0xbe, 0xde },
00171  { 0xbf, 0xdf },
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 
00191 static int
00192 apply_all_case_fold(OnigCaseFoldType flag,
00193                     OnigApplyAllCaseFoldFunc f, void* arg,
00194                     OnigEncoding enc ARG_UNUSED)
00195 {
00196   return onigenc_apply_all_case_fold_with_map(
00197              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
00198              flag, f, arg);
00199 }
00200 
00201 static int
00202 get_case_fold_codes_by_str(OnigCaseFoldType flag,
00203                            const OnigUChar* p, const OnigUChar* end,
00204                            OnigCaseFoldCodeItem items[],
00205                            OnigEncoding enc ARG_UNUSED)
00206 {
00207   return onigenc_get_case_fold_codes_by_str_with_map(
00208              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
00209              flag, p, end, items);
00210 }
00211 
00212 OnigEncodingDefine(iso_8859_5, ISO_8859_5) = {
00213   onigenc_single_byte_mbc_enc_len,
00214   "ISO-8859-5",  /* name */
00215   1,             /* max enc length */
00216   1,             /* min enc length */
00217   onigenc_is_mbc_newline_0x0a,
00218   onigenc_single_byte_mbc_to_code,
00219   onigenc_single_byte_code_to_mbclen,
00220   onigenc_single_byte_code_to_mbc,
00221   mbc_case_fold,
00222   apply_all_case_fold,
00223   get_case_fold_codes_by_str,
00224   onigenc_minimum_property_name_to_ctype,
00225   is_code_ctype,
00226   onigenc_not_support_get_ctype_code_range,
00227   onigenc_single_byte_left_adjust_char_head,
00228   onigenc_always_true_is_allowed_reverse_match
00229 };
00230 ENC_ALIAS("ISO8859-5", "ISO-8859-5")
00231 

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