| 1 |
|
| 2 |
#include "EXTERN.h" |
| 3 |
#include "perl.h" |
| 4 |
#include "XSUB.h" |
| 5 |
|
| 6 |
/* These 5 files are prepared by mkheader */ |
| 7 |
#include "unfcmb.h" |
| 8 |
#include "unfcan.h" |
| 9 |
#include "unfcpt.h" |
| 10 |
#include "unfcmp.h" |
| 11 |
#include "unfexc.h" |
| 12 |
|
| 13 |
/* Perl 5.6.1 ? */ |
| 14 |
#ifndef uvuni_to_utf8 |
| 15 |
#define uvuni_to_utf8 uv_to_utf8 |
| 16 |
#endif /* uvuni_to_utf8 */ |
| 17 |
|
| 18 |
/* Perl 5.6.1 ? */ |
| 19 |
#ifndef utf8n_to_uvuni |
| 20 |
#define utf8n_to_uvuni utf8_to_uv |
| 21 |
#endif /* utf8n_to_uvuni */ |
| 22 |
|
| 23 |
/* UTF8_ALLOW_BOM is used before Perl 5.8.0 */ |
| 24 |
#ifdef UTF8_ALLOW_BOM |
| 25 |
#define AllowAnyUTF (UTF8_ALLOW_SURROGATE|UTF8_ALLOW_BOM|UTF8_ALLOW_FFFF) |
| 26 |
#else |
| 27 |
#define AllowAnyUTF (UTF8_ALLOW_SURROGATE|UTF8_ALLOW_FFFF) |
| 28 |
#endif |
| 29 |
|
| 30 |
/* if utf8n_to_uvuni() sets retlen to 0 (?) */ |
| 31 |
#define ErrRetlenIsZero "panic (Unicode::Normalize): zero-length character" |
| 32 |
|
| 33 |
/* utf8_hop() hops back before start. Maybe broken UTF-8 */ |
| 34 |
#define ErrHopBeforeStart "panic (Unicode::Normalize): hopping before start" |
| 35 |
|
| 36 |
/* At present, char > 0x10ffff are unaffected without complaint, right? */ |
| 37 |
#define VALID_UTF_MAX (0x10ffff) |
| 38 |
#define OVER_UTF_MAX(uv) (VALID_UTF_MAX < (uv)) |
| 39 |
|
| 40 |
/* HANGUL_H */ |
| 41 |
#define Hangul_SBase 0xAC00 |
| 42 |
#define Hangul_SFinal 0xD7A3 |
| 43 |
#define Hangul_SCount 11172 |
| 44 |
|
| 45 |
#define Hangul_NCount 588 |
| 46 |
|
| 47 |
#define Hangul_LBase 0x1100 |
| 48 |
#define Hangul_LFinal 0x1112 |
| 49 |
#define Hangul_LCount 19 |
| 50 |
|
| 51 |
#define Hangul_VBase 0x1161 |
| 52 |
#define Hangul_VFinal 0x1175 |
| 53 |
#define Hangul_VCount 21 |
| 54 |
|
| 55 |
#define Hangul_TBase 0x11A7 |
| 56 |
#define Hangul_TFinal 0x11C2 |
| 57 |
#define Hangul_TCount 28 |
| 58 |
|
| 59 |
#define Hangul_IsS(u) ((Hangul_SBase <= (u)) && ((u) <= Hangul_SFinal)) |
| 60 |
#define Hangul_IsN(u) (((u) - Hangul_SBase) % Hangul_TCount == 0) |
| 61 |
#define Hangul_IsLV(u) (Hangul_IsS(u) && Hangul_IsN(u)) |
| 62 |
#define Hangul_IsL(u) ((Hangul_LBase <= (u)) && ((u) <= Hangul_LFinal)) |
| 63 |
#define Hangul_IsV(u) ((Hangul_VBase <= (u)) && ((u) <= Hangul_VFinal)) |
| 64 |
#define Hangul_IsT(u) ((Hangul_TBase < (u)) && ((u) <= Hangul_TFinal)) |
| 65 |
/* HANGUL_H */ |
| 66 |
|
| 67 |
/* this is used for canonical ordering of combining characters (c.c.). */ |
| 68 |
typedef struct { |
| 69 |
U8 cc; /* combining class */ |
| 70 |
UV uv; /* codepoint */ |
| 71 |
STRLEN pos; /* position */ |
| 72 |
} UNF_cc; |
| 73 |
|
| 74 |
static int compare_cc (const void *a, const void *b) |
| 75 |
{ |
| 76 |
int ret_cc; |
| 77 |
ret_cc = ((UNF_cc*) a)->cc - ((UNF_cc*) b)->cc; |
| 78 |
if (ret_cc) |
| 79 |
return ret_cc; |
| 80 |
|
| 81 |
return ( ((UNF_cc*) a)->pos > ((UNF_cc*) b)->pos ) |
| 82 |
- ( ((UNF_cc*) a)->pos < ((UNF_cc*) b)->pos ); |
| 83 |
} |
| 84 |
|
| 85 |
static U8* dec_canonical (UV uv) |
| 86 |
{ |
| 87 |
U8 ***plane, **row; |
| 88 |
if (OVER_UTF_MAX(uv)) |
| 89 |
return NULL; |
| 90 |
plane = (U8***)UNF_canon[uv >> 16]; |
| 91 |
if (! plane) |
| 92 |
return NULL; |
| 93 |
row = plane[(uv >> 8) & 0xff]; |
| 94 |
return row ? row[uv & 0xff] : NULL; |
| 95 |
} |
| 96 |
|
| 97 |
static U8* dec_compat (UV uv) |
| 98 |
{ |
| 99 |
U8 ***plane, **row; |
| 100 |
if (OVER_UTF_MAX(uv)) |
| 101 |
return NULL; |
| 102 |
plane = (U8***)UNF_compat[uv >> 16]; |
| 103 |
if (! plane) |
| 104 |
return NULL; |
| 105 |
row = plane[(uv >> 8) & 0xff]; |
| 106 |
return row ? row[uv & 0xff] : NULL; |
| 107 |
} |
| 108 |
|
| 109 |
static UV composite_uv (UV uv, UV uv2) |
| 110 |
{ |
| 111 |
UNF_complist ***plane, **row, *cell, *i; |
| 112 |
|
| 113 |
if (! uv2 || OVER_UTF_MAX(uv) || OVER_UTF_MAX(uv2)) |
| 114 |
return 0; |
| 115 |
|
| 116 |
if (Hangul_IsL(uv) && Hangul_IsV(uv2)) { |
| 117 |
uv -= Hangul_LBase; /* lindex */ |
| 118 |
uv2 -= Hangul_VBase; /* vindex */ |
| 119 |
return(Hangul_SBase + (uv * Hangul_VCount + uv2) * Hangul_TCount); |
| 120 |
} |
| 121 |
if (Hangul_IsLV(uv) && Hangul_IsT(uv2)) { |
| 122 |
uv2 -= Hangul_TBase; /* tindex */ |
| 123 |
return(uv + uv2); |
| 124 |
} |
| 125 |
plane = UNF_compos[uv >> 16]; |
| 126 |
if (! plane) |
| 127 |
return 0; |
| 128 |
row = plane[(uv >> 8) & 0xff]; |
| 129 |
if (! row) |
| 130 |
return 0; |
| 131 |
cell = row[uv & 0xff]; |
| 132 |
if (! cell) |
| 133 |
return 0; |
| 134 |
for (i = cell; i->nextchar; i++) { |
| 135 |
if (uv2 == i->nextchar) |
| 136 |
return i->composite; |
| 137 |
} |
| 138 |
return 0; |
| 139 |
} |
| 140 |
|
| 141 |
static U8 getCombinClass (UV uv) |
| 142 |
{ |
| 143 |
U8 **plane, *row; |
| 144 |
if (OVER_UTF_MAX(uv)) |
| 145 |
return 0; |
| 146 |
plane = (U8**)UNF_combin[uv >> 16]; |
| 147 |
if (! plane) |
| 148 |
return 0; |
| 149 |
row = plane[(uv >> 8) & 0xff]; |
| 150 |
return row ? row[uv & 0xff] : 0; |
| 151 |
} |
| 152 |
|
| 153 |
static void sv_cat_decompHangul (SV* sv, UV uv) |
| 154 |
{ |
| 155 |
UV sindex, lindex, vindex, tindex; |
| 156 |
U8 *t, tmp[3 * UTF8_MAXLEN + 1]; |
| 157 |
|
| 158 |
if (! Hangul_IsS(uv)) |
| 159 |
return; |
| 160 |
|
| 161 |
sindex = uv - Hangul_SBase; |
| 162 |
lindex = sindex / Hangul_NCount; |
| 163 |
vindex = (sindex % Hangul_NCount) / Hangul_TCount; |
| 164 |
tindex = sindex % Hangul_TCount; |
| 165 |
|
| 166 |
t = tmp; |
| 167 |
t = uvuni_to_utf8(t, (lindex + Hangul_LBase)); |
| 168 |
t = uvuni_to_utf8(t, (vindex + Hangul_VBase)); |
| 169 |
if (tindex) |
| 170 |
t = uvuni_to_utf8(t, (tindex + Hangul_TBase)); |
| 171 |
*t = '\0'; |
| 172 |
sv_catpvn(sv, (char *)tmp, t - tmp); |
| 173 |
} |
| 174 |
|
| 175 |
static void sv_cat_uvuni (SV* sv, UV uv) |
| 176 |
{ |
| 177 |
U8 *t, tmp[UTF8_MAXLEN + 1]; |
| 178 |
|
| 179 |
t = tmp; |
| 180 |
t = uvuni_to_utf8(t, uv); |
| 181 |
*t = '\0'; |
| 182 |
sv_catpvn(sv, (char *)tmp, t - tmp); |
| 183 |
} |
| 184 |
|
| 185 |
static char * sv_2pvunicode(SV *sv, STRLEN *lp) |
| 186 |
{ |
| 187 |
char *s; |
| 188 |
STRLEN len; |
| 189 |
s = (char*)SvPV(sv,len); |
| 190 |
if (!SvUTF8(sv)) { |
| 191 |
SV* tmpsv = sv_mortalcopy(sv); |
| 192 |
if (!SvPOK(tmpsv)) |
| 193 |
(void)sv_pvn_force(tmpsv,&len); |
| 194 |
sv_utf8_upgrade(tmpsv); |
| 195 |
s = (char*)SvPV(tmpsv,len); |
| 196 |
} |
| 197 |
*lp = len; |
| 198 |
return s; |
| 199 |
} |
| 200 |
|
| 201 |
MODULE = Unicode::Normalize PACKAGE = Unicode::Normalize |
| 202 |
|
| 203 |
SV* |
| 204 |
decompose(src, compat = &PL_sv_no) |
| 205 |
SV * src |
| 206 |
SV * compat |
| 207 |
PROTOTYPE: $;$ |
| 208 |
PREINIT: |
| 209 |
SV *dst; |
| 210 |
STRLEN srclen, retlen; |
| 211 |
U8 *s, *e, *p, *r; |
| 212 |
UV uv; |
| 213 |
bool iscompat; |
| 214 |
CODE: |
| 215 |
iscompat = SvTRUE(compat); |
| 216 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 217 |
e = s + srclen; |
| 218 |
|
| 219 |
dst = newSV(1); |
| 220 |
(void)SvPOK_only(dst); |
| 221 |
SvUTF8_on(dst); |
| 222 |
|
| 223 |
for (p = s; p < e; p += retlen) { |
| 224 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 225 |
if (!retlen) |
| 226 |
croak(ErrRetlenIsZero); |
| 227 |
|
| 228 |
if (Hangul_IsS(uv)) |
| 229 |
sv_cat_decompHangul(dst, uv); |
| 230 |
else { |
| 231 |
r = iscompat ? dec_compat(uv) : dec_canonical(uv); |
| 232 |
if (r) |
| 233 |
sv_catpv(dst, (char *)r); |
| 234 |
else |
| 235 |
sv_cat_uvuni(dst, uv); |
| 236 |
} |
| 237 |
} |
| 238 |
RETVAL = dst; |
| 239 |
OUTPUT: |
| 240 |
RETVAL |
| 241 |
|
| 242 |
|
| 243 |
|
| 244 |
SV* |
| 245 |
reorder(src) |
| 246 |
SV * src |
| 247 |
PROTOTYPE: $ |
| 248 |
PREINIT: |
| 249 |
SV *dst; |
| 250 |
STRLEN srclen, dstlen, retlen, stk_cc_max; |
| 251 |
U8 *s, *e, *p, *d, curCC; |
| 252 |
UV uv, uvlast; |
| 253 |
UNF_cc * stk_cc; |
| 254 |
STRLEN i, cc_pos; |
| 255 |
bool valid_uvlast; |
| 256 |
CODE: |
| 257 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 258 |
e = s + srclen; |
| 259 |
|
| 260 |
dstlen = srclen + 1; |
| 261 |
dst = newSV(dstlen); |
| 262 |
(void)SvPOK_only(dst); |
| 263 |
SvUTF8_on(dst); |
| 264 |
d = (U8*)SvPVX(dst); |
| 265 |
|
| 266 |
stk_cc_max = 10; /* enough as an initial value? */ |
| 267 |
New(0, stk_cc, stk_cc_max, UNF_cc); |
| 268 |
|
| 269 |
for (p = s; p < e;) { |
| 270 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 271 |
if (!retlen) |
| 272 |
croak(ErrRetlenIsZero); |
| 273 |
p += retlen; |
| 274 |
|
| 275 |
curCC = getCombinClass(uv); |
| 276 |
if (curCC == 0) { |
| 277 |
d = uvuni_to_utf8(d, uv); |
| 278 |
continue; |
| 279 |
} |
| 280 |
|
| 281 |
cc_pos = 0; |
| 282 |
stk_cc[cc_pos].cc = curCC; |
| 283 |
stk_cc[cc_pos].uv = uv; |
| 284 |
stk_cc[cc_pos].pos = cc_pos; |
| 285 |
|
| 286 |
valid_uvlast = FALSE; |
| 287 |
while (p < e) { |
| 288 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 289 |
if (!retlen) |
| 290 |
croak(ErrRetlenIsZero); |
| 291 |
p += retlen; |
| 292 |
|
| 293 |
curCC = getCombinClass(uv); |
| 294 |
if (curCC == 0) { |
| 295 |
uvlast = uv; |
| 296 |
valid_uvlast = TRUE; |
| 297 |
break; |
| 298 |
} |
| 299 |
|
| 300 |
cc_pos++; |
| 301 |
if (stk_cc_max <= cc_pos) { /* extend if need */ |
| 302 |
stk_cc_max = cc_pos + 1; |
| 303 |
Renew(stk_cc, stk_cc_max, UNF_cc); |
| 304 |
} |
| 305 |
stk_cc[cc_pos].cc = curCC; |
| 306 |
stk_cc[cc_pos].uv = uv; |
| 307 |
stk_cc[cc_pos].pos = cc_pos; |
| 308 |
} |
| 309 |
|
| 310 |
/* reordered if there are two c.c.'s */ |
| 311 |
if (cc_pos) { |
| 312 |
qsort((void*)stk_cc, cc_pos + 1, sizeof(UNF_cc), compare_cc); |
| 313 |
} |
| 314 |
|
| 315 |
for (i = 0; i <= cc_pos; i++) { |
| 316 |
d = uvuni_to_utf8(d, stk_cc[i].uv); |
| 317 |
} |
| 318 |
if (valid_uvlast) |
| 319 |
{ |
| 320 |
d = uvuni_to_utf8(d, uvlast); |
| 321 |
} |
| 322 |
} |
| 323 |
*d = '\0'; |
| 324 |
SvCUR_set(dst, d - (U8*)SvPVX(dst)); |
| 325 |
Safefree(stk_cc); |
| 326 |
RETVAL = dst; |
| 327 |
OUTPUT: |
| 328 |
RETVAL |
| 329 |
|
| 330 |
|
| 331 |
|
| 332 |
SV* |
| 333 |
compose(src) |
| 334 |
SV * src |
| 335 |
PROTOTYPE: $ |
| 336 |
ALIAS: |
| 337 |
composeContiguous = 1 |
| 338 |
PREINIT: |
| 339 |
SV *dst, *tmp; |
| 340 |
U8 *s, *p, *e, *d, *t, *tmp_start, curCC, preCC; |
| 341 |
UV uv, uvS, uvComp; |
| 342 |
STRLEN srclen, dstlen, tmplen, retlen; |
| 343 |
bool beginning = TRUE; |
| 344 |
CODE: |
| 345 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 346 |
e = s + srclen; |
| 347 |
|
| 348 |
dstlen = srclen + 1; |
| 349 |
dst = newSV(dstlen); |
| 350 |
(void)SvPOK_only(dst); |
| 351 |
SvUTF8_on(dst); |
| 352 |
d = (U8*)SvPVX(dst); |
| 353 |
|
| 354 |
/* for uncomposed combining char */ |
| 355 |
tmp = sv_2mortal(newSV(dstlen)); |
| 356 |
(void)SvPOK_only(tmp); |
| 357 |
SvUTF8_on(tmp); |
| 358 |
|
| 359 |
for (p = s; p < e;) { |
| 360 |
if (beginning) { |
| 361 |
uvS = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 362 |
if (!retlen) |
| 363 |
croak(ErrRetlenIsZero); |
| 364 |
p += retlen; |
| 365 |
|
| 366 |
if (getCombinClass(uvS)) { /* no Starter found yet */ |
| 367 |
d = uvuni_to_utf8(d, uvS); |
| 368 |
continue; |
| 369 |
} |
| 370 |
beginning = FALSE; |
| 371 |
} |
| 372 |
|
| 373 |
/* Starter */ |
| 374 |
t = tmp_start = (U8*)SvPVX(tmp); |
| 375 |
preCC = 0; |
| 376 |
|
| 377 |
/* to the next Starter */ |
| 378 |
while (p < e) { |
| 379 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 380 |
if (!retlen) |
| 381 |
croak(ErrRetlenIsZero); |
| 382 |
p += retlen; |
| 383 |
|
| 384 |
curCC = getCombinClass(uv); |
| 385 |
|
| 386 |
if (preCC && preCC == curCC) { |
| 387 |
preCC = curCC; |
| 388 |
t = uvuni_to_utf8(t, uv); |
| 389 |
} else { |
| 390 |
uvComp = composite_uv(uvS, uv); |
| 391 |
|
| 392 |
if (uvComp && ! isExclusion(uvComp) && |
| 393 |
(ix ? (t == tmp_start) : (preCC <= curCC))) { |
| 394 |
STRLEN leftcur, rightcur, dstcur; |
| 395 |
leftcur = UNISKIP(uvComp); |
| 396 |
rightcur = UNISKIP(uvS) + UNISKIP(uv); |
| 397 |
|
| 398 |
if (leftcur > rightcur) { |
| 399 |
dstcur = d - (U8*)SvPVX(dst); |
| 400 |
dstlen += leftcur - rightcur; |
| 401 |
d = (U8*)SvGROW(dst,dstlen) + dstcur; |
| 402 |
} |
| 403 |
/* preCC not changed to curCC */ |
| 404 |
uvS = uvComp; |
| 405 |
} else if (! curCC && p < e) { /* blocked */ |
| 406 |
break; |
| 407 |
} else { |
| 408 |
preCC = curCC; |
| 409 |
t = uvuni_to_utf8(t, uv); |
| 410 |
} |
| 411 |
} |
| 412 |
} |
| 413 |
d = uvuni_to_utf8(d, uvS); /* starter (composed or not) */ |
| 414 |
tmplen = t - tmp_start; |
| 415 |
if (tmplen) { /* uncomposed combining char */ |
| 416 |
t = (U8*)SvPVX(tmp); |
| 417 |
while (tmplen--) |
| 418 |
*d++ = *t++; |
| 419 |
} |
| 420 |
uvS = uv; |
| 421 |
} /* for */ |
| 422 |
*d = '\0'; |
| 423 |
SvCUR_set(dst, d - (U8*)SvPVX(dst)); |
| 424 |
RETVAL = dst; |
| 425 |
OUTPUT: |
| 426 |
RETVAL |
| 427 |
|
| 428 |
|
| 429 |
void |
| 430 |
checkNFD(src) |
| 431 |
SV * src |
| 432 |
PROTOTYPE: $ |
| 433 |
ALIAS: |
| 434 |
checkNFKD = 1 |
| 435 |
PREINIT: |
| 436 |
STRLEN srclen, retlen; |
| 437 |
U8 *s, *e, *p, curCC, preCC; |
| 438 |
UV uv; |
| 439 |
CODE: |
| 440 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 441 |
e = s + srclen; |
| 442 |
|
| 443 |
preCC = 0; |
| 444 |
for (p = s; p < e; p += retlen) { |
| 445 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 446 |
if (!retlen) |
| 447 |
croak(ErrRetlenIsZero); |
| 448 |
|
| 449 |
curCC = getCombinClass(uv); |
| 450 |
if (preCC > curCC && curCC != 0) /* canonical ordering violated */ |
| 451 |
XSRETURN_NO; |
| 452 |
if (Hangul_IsS(uv) || (ix ? dec_compat(uv) : dec_canonical(uv))) |
| 453 |
XSRETURN_NO; |
| 454 |
preCC = curCC; |
| 455 |
} |
| 456 |
XSRETURN_YES; |
| 457 |
|
| 458 |
|
| 459 |
|
| 460 |
void |
| 461 |
checkNFC(src) |
| 462 |
SV * src |
| 463 |
PROTOTYPE: $ |
| 464 |
ALIAS: |
| 465 |
checkNFKC = 1 |
| 466 |
PREINIT: |
| 467 |
STRLEN srclen, retlen; |
| 468 |
U8 *s, *e, *p, curCC, preCC; |
| 469 |
UV uv; |
| 470 |
bool isMAYBE; |
| 471 |
CODE: |
| 472 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 473 |
e = s + srclen; |
| 474 |
|
| 475 |
preCC = 0; |
| 476 |
isMAYBE = FALSE; |
| 477 |
for (p = s; p < e; p += retlen) { |
| 478 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 479 |
if (!retlen) |
| 480 |
croak(ErrRetlenIsZero); |
| 481 |
|
| 482 |
curCC = getCombinClass(uv); |
| 483 |
|
| 484 |
if (preCC > curCC && curCC != 0) /* canonical ordering violated */ |
| 485 |
XSRETURN_NO; |
| 486 |
|
| 487 |
/* get NFC/NFKC property */ |
| 488 |
if (Hangul_IsS(uv)) /* Hangul syllables are canonical composites */ |
| 489 |
; /* YES */ |
| 490 |
else if (isExclusion(uv) || isSingleton(uv) || isNonStDecomp(uv)) |
| 491 |
XSRETURN_NO; |
| 492 |
else if (isComp2nd(uv)) |
| 493 |
isMAYBE = TRUE; |
| 494 |
else if (ix) { |
| 495 |
char *canon, *compat; |
| 496 |
/* NFKC_NO when having compatibility mapping. */ |
| 497 |
canon = (char *) dec_canonical(uv); |
| 498 |
compat = (char *) dec_compat(uv); |
| 499 |
if (compat && !(canon && strEQ(canon, compat))) |
| 500 |
XSRETURN_NO; |
| 501 |
} /* end of get NFC/NFKC property */ |
| 502 |
|
| 503 |
preCC = curCC; |
| 504 |
} |
| 505 |
if (isMAYBE) |
| 506 |
XSRETURN_UNDEF; |
| 507 |
else |
| 508 |
XSRETURN_YES; |
| 509 |
|
| 510 |
|
| 511 |
|
| 512 |
void |
| 513 |
checkFCD(src) |
| 514 |
SV * src |
| 515 |
PROTOTYPE: $ |
| 516 |
ALIAS: |
| 517 |
checkFCC = 1 |
| 518 |
PREINIT: |
| 519 |
STRLEN srclen, retlen, canlen, canret; |
| 520 |
U8 *s, *e, *p, curCC, preCC; |
| 521 |
UV uv, uvLead, uvTrail; |
| 522 |
U8 *sCan, *pCan, *eCan; |
| 523 |
bool isMAYBE; |
| 524 |
CODE: |
| 525 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 526 |
e = s + srclen; |
| 527 |
|
| 528 |
preCC = 0; |
| 529 |
isMAYBE = FALSE; |
| 530 |
for (p = s; p < e; p += retlen) { |
| 531 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 532 |
if (!retlen) |
| 533 |
croak(ErrRetlenIsZero); |
| 534 |
|
| 535 |
sCan = (U8*) dec_canonical(uv); |
| 536 |
|
| 537 |
if (sCan) { |
| 538 |
canlen = (STRLEN)strlen((char *) sCan); |
| 539 |
uvLead = utf8n_to_uvuni(sCan, canlen, &canret, AllowAnyUTF); |
| 540 |
} |
| 541 |
else { |
| 542 |
uvLead = uv; |
| 543 |
} |
| 544 |
|
| 545 |
curCC = getCombinClass(uvLead); |
| 546 |
|
| 547 |
if (curCC != 0 && curCC < preCC) /* canonical ordering violated */ |
| 548 |
XSRETURN_NO; |
| 549 |
|
| 550 |
if (ix) { |
| 551 |
if (isExclusion(uv) || isSingleton(uv) || isNonStDecomp(uv)) |
| 552 |
XSRETURN_NO; |
| 553 |
else if (isComp2nd(uv)) |
| 554 |
isMAYBE = TRUE; |
| 555 |
} |
| 556 |
|
| 557 |
if (sCan) { |
| 558 |
eCan = sCan + canlen; |
| 559 |
pCan = utf8_hop(eCan, -1); |
| 560 |
if (pCan < sCan) |
| 561 |
croak(ErrHopBeforeStart); |
| 562 |
uvTrail = utf8n_to_uvuni(pCan, eCan - pCan, &canret, AllowAnyUTF); |
| 563 |
preCC = getCombinClass(uvTrail); |
| 564 |
} |
| 565 |
else { |
| 566 |
preCC = curCC; |
| 567 |
} |
| 568 |
} |
| 569 |
if (isMAYBE) |
| 570 |
XSRETURN_UNDEF; |
| 571 |
else |
| 572 |
XSRETURN_YES; |
| 573 |
|
| 574 |
|
| 575 |
|
| 576 |
U8 |
| 577 |
getCombinClass(uv) |
| 578 |
UV uv |
| 579 |
PROTOTYPE: $ |
| 580 |
|
| 581 |
bool |
| 582 |
isExclusion(uv) |
| 583 |
UV uv |
| 584 |
PROTOTYPE: $ |
| 585 |
|
| 586 |
bool |
| 587 |
isSingleton(uv) |
| 588 |
UV uv |
| 589 |
PROTOTYPE: $ |
| 590 |
|
| 591 |
bool |
| 592 |
isNonStDecomp(uv) |
| 593 |
UV uv |
| 594 |
PROTOTYPE: $ |
| 595 |
|
| 596 |
bool |
| 597 |
isComp2nd(uv) |
| 598 |
UV uv |
| 599 |
PROTOTYPE: $ |
| 600 |
ALIAS: |
| 601 |
isNFC_MAYBE = 1 |
| 602 |
isNFKC_MAYBE = 2 |
| 603 |
|
| 604 |
|
| 605 |
|
| 606 |
void |
| 607 |
isNFD_NO(uv) |
| 608 |
UV uv |
| 609 |
PROTOTYPE: $ |
| 610 |
ALIAS: |
| 611 |
isNFKD_NO = 1 |
| 612 |
CODE: |
| 613 |
if (Hangul_IsS(uv) || (ix ? dec_compat(uv) : dec_canonical(uv))) |
| 614 |
XSRETURN_YES; /* NFD_NO or NFKD_NO */ |
| 615 |
else |
| 616 |
XSRETURN_NO; |
| 617 |
|
| 618 |
|
| 619 |
|
| 620 |
void |
| 621 |
isComp_Ex(uv) |
| 622 |
UV uv |
| 623 |
PROTOTYPE: $ |
| 624 |
ALIAS: |
| 625 |
isNFC_NO = 0 |
| 626 |
isNFKC_NO = 1 |
| 627 |
CODE: |
| 628 |
if (isExclusion(uv) || isSingleton(uv) || isNonStDecomp(uv)) |
| 629 |
XSRETURN_YES; /* NFC_NO or NFKC_NO */ |
| 630 |
else if (ix) { |
| 631 |
char *canon, *compat; |
| 632 |
canon = (char *) dec_canonical(uv); |
| 633 |
compat = (char *) dec_compat(uv); |
| 634 |
if (compat && (!canon || strNE(canon, compat))) |
| 635 |
XSRETURN_YES; /* NFC_NO or NFKC_NO */ |
| 636 |
else |
| 637 |
XSRETURN_NO; |
| 638 |
} |
| 639 |
else |
| 640 |
XSRETURN_NO; |
| 641 |
|
| 642 |
|
| 643 |
|
| 644 |
SV* |
| 645 |
getComposite(uv, uv2) |
| 646 |
UV uv |
| 647 |
UV uv2 |
| 648 |
PROTOTYPE: $$ |
| 649 |
PREINIT: |
| 650 |
UV composite; |
| 651 |
CODE: |
| 652 |
composite = composite_uv(uv, uv2); |
| 653 |
RETVAL = composite ? newSVuv(composite) : &PL_sv_undef; |
| 654 |
OUTPUT: |
| 655 |
RETVAL |
| 656 |
|
| 657 |
|
| 658 |
|
| 659 |
SV* |
| 660 |
getCanon(uv) |
| 661 |
UV uv |
| 662 |
PROTOTYPE: $ |
| 663 |
ALIAS: |
| 664 |
getCompat = 1 |
| 665 |
PREINIT: |
| 666 |
U8 * rstr; |
| 667 |
CODE: |
| 668 |
if (Hangul_IsS(uv)) { |
| 669 |
SV * dst; |
| 670 |
dst = newSV(1); |
| 671 |
(void)SvPOK_only(dst); |
| 672 |
sv_cat_decompHangul(dst, uv); |
| 673 |
RETVAL = dst; |
| 674 |
} else { |
| 675 |
rstr = ix ? dec_compat(uv) : dec_canonical(uv); |
| 676 |
if (!rstr) |
| 677 |
XSRETURN_UNDEF; |
| 678 |
RETVAL = newSVpvn((char *)rstr, strlen((char *)rstr)); |
| 679 |
} |
| 680 |
SvUTF8_on(RETVAL); |
| 681 |
OUTPUT: |
| 682 |
RETVAL |
| 683 |
|
| 684 |
|
| 685 |
void |
| 686 |
splitOnLastStarter(src) |
| 687 |
SV * src |
| 688 |
PREINIT: |
| 689 |
SV *svp; |
| 690 |
STRLEN srclen, retlen; |
| 691 |
U8 *s, *e, *p; |
| 692 |
UV uv; |
| 693 |
PPCODE: |
| 694 |
s = (U8*)sv_2pvunicode(src,&srclen); |
| 695 |
e = s + srclen; |
| 696 |
|
| 697 |
for (p = e; s < p; ) { |
| 698 |
p = utf8_hop(p, -1); |
| 699 |
if (p < s) |
| 700 |
croak(ErrHopBeforeStart); |
| 701 |
uv = utf8n_to_uvuni(p, e - p, &retlen, AllowAnyUTF); |
| 702 |
if (getCombinClass(uv) == 0) /* Last Starter found */ |
| 703 |
break; |
| 704 |
} |
| 705 |
|
| 706 |
svp = sv_2mortal(newSVpvn((char*)s, p - s)); |
| 707 |
SvUTF8_on(svp); |
| 708 |
XPUSHs(svp); |
| 709 |
|
| 710 |
svp = sv_2mortal(newSVpvn((char*)p, e - p)); |
| 711 |
SvUTF8_on(svp); |
| 712 |
XPUSHs(svp); |
| 713 |
|
