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00030 #include "regint.h"
00031
00032
00033 #define emacsmule_islead(c) ((UChar )((c) - 0x81) > 0x9d - 0x81)
00034
00035
00036
00037
00038
00039
00040
00041
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00047
00048
00049 static const int EncLen_EmacsMule[] = {
00050 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00051 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00052 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,
00054 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00055 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00056 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00057 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00058 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00059 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 1, 1,
00060 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00061 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00062 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00063 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00064 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00065 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00066 };
00067
00068 typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1, S2, S3, S4, S5, S6 } state_t;
00069 #define A ACCEPT
00070 #define F FAILURE
00071 static const signed char trans[][0x100] = {
00072 {
00073 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00074 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00075 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00076 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00077 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00078 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00079 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00080 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00081 F, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00082 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 5, 6, F, F,
00083 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00084 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00085 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00086 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00087 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00088 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
00089 },
00090 {
00091 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00092 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00093 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00094 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00095 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00096 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00097 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00098 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00099 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00100 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00101 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00102 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00103 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00104 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00105 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
00106 A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A
00107 },
00108 {
00109 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00110 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00111 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00112 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00113 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00114 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00115 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00116 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00117 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00118 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00119 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00120 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00121 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00122 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00123 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00124 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
00125 },
00126 {
00127 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00128 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00129 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00130 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00131 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00132 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00133 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00134 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00135 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00136 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00137 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00138 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00139 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00140 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00141 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00142 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
00143 },
00144 {
00145 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00146 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00147 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00148 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00149 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00150 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00151 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00152 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00153 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00154 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00155 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00156 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00157 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00158 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00159 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
00160 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
00161 },
00162 {
00163 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00164 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00165 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00166 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00167 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00168 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00169 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00170 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00171 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00172 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00173 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00174 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00175 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00176 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00177 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00178 2, 2, 2, 2, 2, F, F, F, F, F, F, F, F, F, F, F
00179 },
00180 {
00181 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00182 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00183 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00184 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00185 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00186 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00187 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00188 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00189 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00190 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00191 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00192 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00193 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00194 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00195 F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
00196 F, F, F, F, F, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, F
00197 },
00198
00199 };
00200 #undef A
00201 #undef F
00202
00203 static int
00204 mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
00205 {
00206 int firstbyte = *p++;
00207 state_t s;
00208 s = trans[0][firstbyte];
00209 if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(1) :
00210 ONIGENC_CONSTRUCT_MBCLEN_INVALID();
00211 if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_EmacsMule[firstbyte]-1);
00212 s = trans[s][*p++];
00213 if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(2) :
00214 ONIGENC_CONSTRUCT_MBCLEN_INVALID();
00215 if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_EmacsMule[firstbyte]-2);
00216 s = trans[s][*p++];
00217 if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(3) :
00218 ONIGENC_CONSTRUCT_MBCLEN_INVALID();
00219 if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_EmacsMule[firstbyte]-3);
00220 s = trans[s][*p++];
00221 return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(4) :
00222 ONIGENC_CONSTRUCT_MBCLEN_INVALID();
00223 }
00224
00225 static OnigCodePoint
00226 mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
00227 {
00228 int c, i, len;
00229 OnigCodePoint n;
00230
00231 len = enclen(enc, p, end);
00232 n = (OnigCodePoint )*p++;
00233 if (len == 1) return n;
00234
00235 for (i = 1; i < len; i++) {
00236 if (p >= end) break;
00237 c = *p++;
00238 n <<= 8; n += c;
00239 }
00240 return n;
00241 }
00242
00243 static int
00244 code_to_mbclen(OnigCodePoint code, OnigEncoding enc ARG_UNUSED)
00245 {
00246 if (ONIGENC_IS_CODE_ASCII(code)) return 1;
00247 else if (code > 0xffffffff) return 0;
00248 else if ((code & 0xff000000) >= 0x80000000) return 4;
00249 else if ((code & 0xff0000) >= 0x800000) return 3;
00250 else if ((code & 0xff00) >= 0x8000) return 2;
00251 else
00252 return ONIGERR_INVALID_CODE_POINT_VALUE;
00253 }
00254
00255 static int
00256 code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
00257 {
00258 UChar *p = buf;
00259
00260 if ((code & 0xff000000) != 0) *p++ = (UChar )(((code >> 24) & 0xff));
00261 if ((code & 0xff0000) != 0) *p++ = (UChar )(((code >> 16) & 0xff));
00262 if ((code & 0xff00) != 0) *p++ = (UChar )(((code >> 8) & 0xff));
00263 *p++ = (UChar )(code & 0xff);
00264
00265 if (enclen(enc, buf, p) != (p - buf))
00266 return ONIGERR_INVALID_CODE_POINT_VALUE;
00267 return p - buf;
00268 }
00269
00270 static int
00271 mbc_case_fold(OnigCaseFoldType flag,
00272 const UChar** pp, const UChar* end, UChar* lower,
00273 OnigEncoding enc)
00274 {
00275 int len;
00276 const UChar* p = *pp;
00277
00278 if (ONIGENC_IS_MBC_ASCII(p)) {
00279 *lower = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*p);
00280 (*pp)++;
00281 return 1;
00282 }
00283 else {
00284 int i;
00285
00286 len = mbc_enc_len(p, end, enc);
00287 for (i = 0; i < len; i++) {
00288 *lower++ = *p++;
00289 }
00290 (*pp) += len;
00291 return len;
00292 }
00293 }
00294
00295 static UChar*
00296 left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc)
00297 {
00298 const UChar *p;
00299
00300 if (s <= start) return (UChar* )s;
00301 p = s;
00302
00303 while (!emacsmule_islead(*p) && p > start) p--;
00304 return (UChar* )p;
00305 }
00306
00307 static int
00308 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
00309 {
00310 if (code < 128)
00311 return ONIGENC_IS_ASCII_CODE_CTYPE(code, ctype);
00312 else
00313 return (code_to_mbclen(code, enc) > 1 ? TRUE : FALSE);
00314 }
00315
00316
00317
00318
00319
00320 OnigEncodingDefine(emacs_mule, Emacs_Mule) = {
00321 mbc_enc_len,
00322 "Emacs-Mule",
00323 4,
00324 1,
00325 onigenc_is_mbc_newline_0x0a,
00326 mbc_to_code,
00327 code_to_mbclen,
00328 code_to_mbc,
00329 mbc_case_fold,
00330 onigenc_ascii_apply_all_case_fold,
00331 onigenc_ascii_get_case_fold_codes_by_str,
00332 onigenc_minimum_property_name_to_ctype,
00333 is_code_ctype,
00334 onigenc_not_support_get_ctype_code_range,
00335 left_adjust_char_head,
00336 onigenc_always_true_is_allowed_reverse_match,
00337 0
00338 };
00339
00340 ENC_REPLICATE("stateless-ISO-2022-JP", "Emacs-Mule")
00341