Ruby: enc/big5.c Source File

00001 /**********************************************************************
00002   big5.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 static const int EncLen_BIG5[] = {
00033   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00034   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00035   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00036   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00037   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00038   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00039   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00040   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00041   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00042   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00043   1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00044   2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00045   2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00046   2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00047   2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00048   2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
00049 };
00050 static const int EncLen_BIG5_HKSCS[] = {
00051  /* LEN  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F */
00052  /* 0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00053  /* 1 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00054  /* 2 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00055  /* 3 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00056  /* 4 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00057  /* 5 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00058  /* 6 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00059  /* 7 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00060  /* 8 */ 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00061  /* 9 */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00062  /* A */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00063  /* B */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00064  /* C */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00065  /* D */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00066  /* E */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00067  /* F */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,
00068 };
00069 
00070 static const int EncLen_BIG5_UAO[] = {
00071  /* LEN  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F */
00072  /* 0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00073  /* 1 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00074  /* 2 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00075  /* 3 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00076  /* 4 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00077  /* 5 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00078  /* 6 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00079  /* 7 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00080  /* 8 */ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00081  /* 9 */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00082  /* A */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00083  /* B */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00084  /* C */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00085  /* D */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00086  /* E */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00087  /* F */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,
00088 };
00089 
00090 typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1 } state_t;
00091 #define A ACCEPT
00092 #define F FAILURE
00093 static const signed char trans[][0x100] = {
00094   { /* S0   0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f */
00095     /* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00096     /* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00097     /* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00098     /* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00099     /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00100     /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00101     /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00102     /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00103     /* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00104     /* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00105     /* a */ F, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00106     /* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00107     /* c */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00108     /* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00109     /* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00110     /* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F 
00111   },
00112   { /* S1   0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f */
00113     /* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00114     /* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00115     /* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00116     /* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00117     /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00118     /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00119     /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00120     /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F,
00121     /* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00122     /* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00123     /* a */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00124     /* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00125     /* c */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00126     /* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00127     /* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00128     /* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F 
00129   },
00130   { /* S2   0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f */
00131     /* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00132     /* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00133     /* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00134     /* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00135     /* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00136     /* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00137     /* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00138     /* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00139     /* 8 */ F, F, F, F, F, F, F, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00140     /* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00141     /* a */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00142     /* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00143     /* c */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00144     /* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00145     /* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00146     /* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F
00147   }
00148 };
00149 #undef A
00150 #undef F
00151 
00152 static int
00153 big5_mbc_enc_len0(const UChar* p, const UChar* e, int tridx, const int tbl[])
00154 {
00155   int firstbyte = *p++;
00156   state_t s = trans[tridx][firstbyte];
00157 #define RETURN(n) \
00158     return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(n) : \
00159                          ONIGENC_CONSTRUCT_MBCLEN_INVALID()
00160   if (s < 0) RETURN(1);
00161   if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(tbl[firstbyte]-1);
00162   s = trans[s][*p++];
00163   RETURN(2);
00164 #undef RETURN
00165 }
00166 
00167 static int
00168 big5_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
00169 {
00170     return big5_mbc_enc_len0(p, e, 0, EncLen_BIG5);
00171 }
00172 
00173 static int
00174 big5_hkscs_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
00175 {
00176     return big5_mbc_enc_len0(p, e, 2, EncLen_BIG5_HKSCS);
00177 }
00178 
00179 static int
00180 big5_uao_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
00181 {
00182     return big5_mbc_enc_len0(p, e, 2, EncLen_BIG5_UAO);
00183 }
00184 
00185 static OnigCodePoint
00186 big5_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
00187 {
00188   return onigenc_mbn_mbc_to_code(enc, p, end);
00189 }
00190 
00191 static int
00192 big5_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
00193 {
00194   return onigenc_mb2_code_to_mbc(enc, code, buf);
00195 }
00196 
00197 static int
00198 big5_mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
00199                    UChar* lower, OnigEncoding enc)
00200 {
00201   return onigenc_mbn_mbc_case_fold(enc, flag,
00202                                    pp, end, lower);
00203 }
00204 
00205 #if 0
00206 static int
00207 big5_is_mbc_ambiguous(OnigCaseFoldType flag,
00208                       const UChar** pp, const UChar* end, OnigEncoding enc)
00209 {
00210   return onigenc_mbn_is_mbc_ambiguous(enc, flag, pp, end);
00211 }
00212 #endif
00213 
00214 static int
00215 big5_is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
00216 {
00217   return onigenc_mb2_is_code_ctype(enc, code, ctype);
00218 }
00219 
00220 static const char BIG5_CAN_BE_TRAIL_TABLE[256] = {
00221   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
00222   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
00223   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
00224   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
00225   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00226   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00227   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00228   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
00229   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00230   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00231   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00232   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00233   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00234   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00235   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00236   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
00237 };
00238 
00239 #define BIG5_HKSCS_P(enc) ((enc)->precise_mbc_enc_len == big5_hkscs_mbc_enc_len)
00240 #define BIG5_UAO_P(enc) ((enc)->precise_mbc_enc_len == big5_uao_mbc_enc_len)
00241 
00242 #define BIG5_ISMB_FIRST(byte)  ( \
00243         BIG5_HKSCS_P(enc) ? EncLen_BIG5_HKSCS[byte] > 1 : \
00244         EncLen_BIG5[byte] > 1 \
00245         )
00246 #define BIG5_ISMB_TRAIL(byte)  BIG5_CAN_BE_TRAIL_TABLE[(byte)]
00247 
00248 static UChar*
00249 big5_left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc)
00250 {
00251   const UChar *p;
00252   int len;
00253 
00254   if (s <= start) return (UChar* )s;
00255   p = s;
00256 
00257   if (BIG5_ISMB_TRAIL(*p)) {
00258     while (p > start) {
00259       if (! BIG5_ISMB_FIRST(*--p)) {
00260         p++;
00261         break;
00262       }
00263     } 
00264   }
00265   len = enclen(enc, p, end);
00266   if (p + len > s) return (UChar* )p;
00267   p += len;
00268   return (UChar* )(p + ((s - p) & ~1));
00269 }
00270 
00271 static int
00272 big5_is_allowed_reverse_match(const UChar* s, const UChar* end ARG_UNUSED, OnigEncoding enc ARG_UNUSED)
00273 {
00274   const UChar c = *s;
00275 
00276   return (BIG5_ISMB_TRAIL(c) ? FALSE : TRUE);
00277 }
00278 
00279 /*
00280  * Name: Big5  (preferred MIME name)
00281  * MIBenum: 2026
00282  * Source: Chinese for Taiwan Multi-byte set.
00283  *         PCL Symbol Set Id: 18T
00284  * Alias: csBig5
00285  */
00286 OnigEncodingDefine(big5, BIG5) = {
00287   big5_mbc_enc_len,
00288   "Big5",     /* name */
00289   2,          /* max enc length */
00290   1,          /* min enc length */
00291   onigenc_is_mbc_newline_0x0a,
00292   big5_mbc_to_code,
00293   onigenc_mb2_code_to_mbclen,
00294   big5_code_to_mbc,
00295   big5_mbc_case_fold,
00296   onigenc_ascii_apply_all_case_fold,
00297   onigenc_ascii_get_case_fold_codes_by_str,
00298   onigenc_minimum_property_name_to_ctype,
00299   big5_is_code_ctype,
00300   onigenc_not_support_get_ctype_code_range,
00301   big5_left_adjust_char_head,
00302   big5_is_allowed_reverse_match
00303 };
00304 ENC_ALIAS("CP950", "Big5")
00305 
00306 /*
00307  * Name: Big5-HKSCS
00308  * MIBenum: 2101
00309  * Source:   See (http://www.iana.org/assignments/charset-reg/Big5-HKSCS)
00310  * Alias: None
00311  */
00312 OnigEncodingDefine(big5_hkscs, BIG5_HKSCS) = {
00313   big5_hkscs_mbc_enc_len,
00314   "Big5-HKSCS",     /* name */
00315   2,          /* max enc length */
00316   1,          /* min enc length */
00317   onigenc_is_mbc_newline_0x0a,
00318   big5_mbc_to_code,
00319   onigenc_mb2_code_to_mbclen,
00320   big5_code_to_mbc,
00321   big5_mbc_case_fold,
00322   onigenc_ascii_apply_all_case_fold,
00323   onigenc_ascii_get_case_fold_codes_by_str,
00324   onigenc_minimum_property_name_to_ctype,
00325   big5_is_code_ctype,
00326   onigenc_not_support_get_ctype_code_range,
00327   big5_left_adjust_char_head,
00328   big5_is_allowed_reverse_match
00329 };
00330 ENC_ALIAS("CP951", "Big5-HKSCS")
00331 
00332 /*
00333  * Name: Big5-UAO [NOT registered by IANA!]
00334  * Source: http://moztw.org/docs/big5/table/big5_2003-b2u.txt
00335  */
00336 OnigEncodingDefine(big5_uao, BIG5_UAO) = {
00337   big5_uao_mbc_enc_len,
00338   "Big5-UAO",     /* name */
00339   2,          /* max enc length */
00340   1,          /* min enc length */
00341   onigenc_is_mbc_newline_0x0a,
00342   big5_mbc_to_code,
00343   onigenc_mb2_code_to_mbclen,
00344   big5_code_to_mbc,
00345   big5_mbc_case_fold,
00346   onigenc_ascii_apply_all_case_fold,
00347   onigenc_ascii_get_case_fold_codes_by_str,
00348   onigenc_minimum_property_name_to_ctype,
00349   big5_is_code_ctype,
00350   onigenc_not_support_get_ctype_code_range,
00351   big5_left_adjust_char_head,
00352   big5_is_allowed_reverse_match
00353 };
00354