lib/i18n_module/HZ/citrus_hz.c

   1 /* $FreeBSD: head/lib/libiconv_modules/HZ/citrus_hz.c 281550 2015-04-15 09:09:20Z tijl $ */
   2 /* $NetBSD: citrus_hz.c,v 1.2 2008/06/14 16:01:07 tnozaki Exp $ */
   3
   4 /*-
   5  * Copyright (c)2004, 2006 Citrus Project,
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  */
  30
  31 #include <sys/cdefs.h>
  32 #include <sys/queue.h>
  33 #include <sys/types.h>
  34
  35 #include <assert.h>
  36 #include <errno.h>
  37 #include <limits.h>
  38 #include <stddef.h>
  39 #include <stdint.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <wchar.h>
  43
  44 #include "citrus_namespace.h"
  45 #include "citrus_types.h"
  46 #include "citrus_bcs.h"
  47 #include "citrus_module.h"
  48 #include "citrus_stdenc.h"
  49
  50 #include "citrus_hz.h"
  51 #include "citrus_prop.h"
  52
  53 /*
  54  * wchar_t mapping:
  55  *
  56  * CTRL/ASCII   00000000 00000000 00000000 gxxxxxxx
  57  * GB2312       00000000 00000000 0xxxxxxx gxxxxxxx
  58  * 94/96*n (~M) 0mmmmmmm 0xxxxxxx 0xxxxxxx gxxxxxxx
  59  */
  60
  61 #define ESCAPE_CHAR     '~'
  62
  63 typedef enum {
  64         CTRL = 0, ASCII = 1, GB2312 = 2, CS94 = 3, CS96 = 4
  65 } charset_t;
  66
  67 typedef struct {
  68         int      start;
  69         int      end;
  70         int      width;
  71 } range_t;
  72
  73 static const range_t ranges[] = {
  74 #define RANGE(start, end) { start, end, (end - start) + 1 }
  75 /* CTRL   */ RANGE(0x00, 0x1F),
  76 /* ASCII  */ RANGE(0x20, 0x7F),
  77 /* GB2312 */ RANGE(0x21, 0x7E),
  78 /* CS94   */ RANGE(0x21, 0x7E),
  79 /* CS96   */ RANGE(0x20, 0x7F),
  80 #undef RANGE
  81 };
  82
  83 typedef struct escape_t escape_t;
  84 typedef struct {
  85         charset_t        charset;
  86         escape_t        *escape;
  87         ssize_t          length;
  88 #define ROWCOL_MAX      3
  89 } graphic_t;
  90
  91 typedef TAILQ_HEAD(escape_list, escape_t) escape_list;
  92 struct escape_t {
  93         TAILQ_ENTRY(escape_t)    entry;
  94         escape_list             *set;
  95         graphic_t               *left;
  96         graphic_t               *right;
  97         int                      ch;
  98 };
  99
 100 #define GL(escape)      ((escape)->left)
 101 #define GR(escape)      ((escape)->right)
 102 #define SET(escape)     ((escape)->set)
 103 #define ESC(escape)     ((escape)->ch)
 104 #define INIT(escape)    (TAILQ_FIRST(SET(escape)))
 105
 106 static __inline escape_t *
 107 find_escape(escape_list *set, int ch)
 108 {
 109         escape_t *escape;
 110
 111         TAILQ_FOREACH(escape, set, entry) {
 112                 if (ESC(escape) == ch)
 113                         break;
 114         }
 115
 116         return (escape);
 117 }
 118
 119 typedef struct {
 120         escape_list      e0;
 121         escape_list      e1;
 122         graphic_t       *ascii;
 123         graphic_t       *gb2312;
 124 } _HZEncodingInfo;
 125
 126 #define E0SET(ei)       (&(ei)->e0)
 127 #define E1SET(ei)       (&(ei)->e1)
 128 #define INIT0(ei)       (TAILQ_FIRST(E0SET(ei)))
 129 #define INIT1(ei)       (TAILQ_FIRST(E1SET(ei)))
 130
 131 typedef struct {
 132         escape_t        *inuse;
 133         int              chlen;
 134         char             ch[ROWCOL_MAX];
 135 } _HZState;
 136
 137 #define _CEI_TO_EI(_cei_)               (&(_cei_)->ei)
 138 #define _CEI_TO_STATE(_cei_, _func_)    (_cei_)->states.s_##_func_
 139
 140 #define _FUNCNAME(m)                    _citrus_HZ_##m
 141 #define _ENCODING_INFO                  _HZEncodingInfo
 142 #define _ENCODING_STATE                 _HZState
 143 #define _ENCODING_MB_CUR_MAX(_ei_)      MB_LEN_MAX
 144 #define _ENCODING_IS_STATE_DEPENDENT            1
 145 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_)        ((_ps_)->inuse == NULL)
 146
 147 static __inline void
 148 _citrus_HZ_init_state(_HZEncodingInfo * __restrict ei,
 149     _HZState * __restrict psenc)
 150 {
 151
 152         psenc->chlen = 0;
 153         psenc->inuse = INIT0(ei);
 154 }
 155
 156 #if 0
 157 static __inline void
 158 /*ARGSUSED*/
 159 _citrus_HZ_pack_state(_HZEncodingInfo * __restrict ei __unused,
 160     void *__restrict pspriv, const _HZState * __restrict psenc)
 161 {
 162
 163         memcpy(pspriv, (const void *)psenc, sizeof(*psenc));
 164 }
 165
 166 static __inline void
 167 /*ARGSUSED*/
 168 _citrus_HZ_unpack_state(_HZEncodingInfo * __restrict ei __unused,
 169     _HZState * __restrict psenc, const void * __restrict pspriv)
 170 {
 171
 172         memcpy((void *)psenc, pspriv, sizeof(*psenc));
 173 }
 174 #endif
 175
 176 static int
 177 _citrus_HZ_mbrtowc_priv(_HZEncodingInfo * __restrict ei,
 178     wchar_t * __restrict pwc, char ** __restrict s, size_t n,
 179     _HZState * __restrict psenc, size_t * __restrict nresult)
 180 {
 181         escape_t *candidate, *init;
 182         graphic_t *graphic;
 183         const range_t *range;
 184         char *s0;
 185         wchar_t wc;
 186         int bit, ch, head, len, tail;
 187
 188         if (*s == NULL) {
 189                 _citrus_HZ_init_state(ei, psenc);
 190                 *nresult = 1;
 191                 return (0);
 192         }
 193         s0 = *s;
 194         if (psenc->chlen < 0 || psenc->inuse == NULL)
 195                 return (EINVAL);
 196
 197         wc = (wchar_t)0;
 198         bit = head = tail = 0;
 199         graphic = NULL;
 200         for (len = 0; len <= MB_LEN_MAX;) {
 201                 if (psenc->chlen == tail) {
 202                         if (n-- < 1) {
 203                                 *s = s0;
 204                                 *nresult = (size_t)-2;
 205                                 return (0);
 206                         }
 207                         psenc->ch[psenc->chlen++] = *s0++;
 208                         ++len;
 209                 }
 210                 ch = (unsigned char)psenc->ch[tail++];
 211                 if (tail == 1) {
 212                         if ((ch & ~0x80) <= 0x1F) {
 213                                 if (psenc->inuse != INIT0(ei))
 214                                         break;
 215                                 wc = (wchar_t)ch;
 216                                 goto done;
 217                         }
 218                         if (ch & 0x80) {
 219                                 graphic = GR(psenc->inuse);
 220                                 bit = 0x80;
 221                                 ch &= ~0x80;
 222                         } else {
 223                                 graphic = GL(psenc->inuse);
 224                                 if (ch == ESCAPE_CHAR)
 225                                         continue;
 226                                 bit = 0x0;
 227                         }
 228                         if (graphic == NULL)
 229                                 break;
 230                 } else if (tail == 2 && psenc->ch[0] == ESCAPE_CHAR) {
 231                         if (tail < psenc->chlen)
 232                                 return (EINVAL);
 233                         if (ch == ESCAPE_CHAR) {
 234                                 ++head;
 235                         } else if (ch == '\n') {
 236                                 if (psenc->inuse != INIT0(ei))
 237                                         break;
 238                                 tail = psenc->chlen = 0;
 239                                 continue;
 240                         } else {
 241                                 candidate = NULL;
 242                                 init = INIT0(ei);
 243                                 if (psenc->inuse == init) {
 244                                         init = INIT1(ei);
 245                                 } else if (INIT(psenc->inuse) == init) {
 246                                         if (ESC(init) != ch)
 247                                                 break;
 248                                         candidate = init;
 249                                 }
 250                                 if (candidate == NULL) {
 251                                         candidate = find_escape(
 252                                             SET(psenc->inuse), ch);
 253                                         if (candidate == NULL) {
 254                                                 if (init == NULL ||
 255                                                     ESC(init) != ch)
 256                                                         break;
 257                                                 candidate = init;
 258                                         }
 259                                 }
 260                                 psenc->inuse = candidate;
 261                                 tail = psenc->chlen = 0;
 262                                 continue;
 263                         }
 264                 } else if (ch & 0x80) {
 265                         if (graphic != GR(psenc->inuse))
 266                                 break;
 267                         ch &= ~0x80;
 268                 } else {
 269                         if (graphic != GL(psenc->inuse))
 270                                 break;
 271                 }
 272                 range = &ranges[(size_t)graphic->charset];
 273                 if (range->start > ch || range->end < ch)
 274                         break;
 275                 wc <<= 8;
 276                 wc |= ch;
 277                 if (graphic->length == (tail - head)) {
 278                         if (graphic->charset > GB2312)
 279                                 bit |= ESC(psenc->inuse) << 24;
 280                         wc |= bit;
 281                         goto done;
 282                 }
 283         }
 284         *nresult = (size_t)-1;
 285         return (EILSEQ);
 286 done:
 287         if (tail < psenc->chlen)
 288                 return (EINVAL);
 289         *s = s0;
 290         if (pwc != NULL)
 291                 *pwc = wc;
 292         psenc->chlen = 0;
 293         *nresult = (wc == 0) ? 0 : len;
 294
 295         return (0);
 296 }
 297
 298 static int
 299 _citrus_HZ_wcrtomb_priv(_HZEncodingInfo * __restrict ei,
 300     char * __restrict s, size_t n, wchar_t wc,
 301     _HZState * __restrict psenc, size_t * __restrict nresult)
 302 {
 303         escape_t *candidate, *init;
 304         graphic_t *graphic;
 305         const range_t *range;
 306         size_t len;
 307         int bit, ch;
 308
 309         if (psenc->chlen != 0 || psenc->inuse == NULL)
 310                 return (EINVAL);
 311         if (wc & 0x80) {
 312                 bit = 0x80;
 313                 wc &= ~0x80;
 314         } else {
 315                 bit = 0x0;
 316         }
 317         if ((uint32_t)wc <= 0x1F) {
 318                 candidate = INIT0(ei);
 319                 graphic = (bit == 0) ? candidate->left : candidate->right;
 320                 if (graphic == NULL)
 321                         goto ilseq;
 322                 range = &ranges[(size_t)CTRL];
 323                 len = 1;
 324         } else if ((uint32_t)wc <= 0x7F) {
 325                 graphic = ei->ascii;
 326                 if (graphic == NULL)
 327                         goto ilseq;
 328                 candidate = graphic->escape;
 329                 range = &ranges[(size_t)graphic->charset];
 330                 len = graphic->length;
 331         } else if ((uint32_t)wc <= 0x7F7F) {
 332                 graphic = ei->gb2312;
 333                 if (graphic == NULL)
 334                         goto ilseq;
 335                 candidate = graphic->escape;
 336                 range = &ranges[(size_t)graphic->charset];
 337                 len = graphic->length;
 338         } else {
 339                 ch = (wc >> 24) & 0xFF;
 340                 candidate = find_escape(E0SET(ei), ch);
 341                 if (candidate == NULL) {
 342                         candidate = find_escape(E1SET(ei), ch);
 343                         if (candidate == NULL)
 344                                 goto ilseq;
 345                 }
 346                 wc &= ~0xFF000000;
 347                 graphic = (bit == 0) ? candidate->left : candidate->right;
 348                 if (graphic == NULL)
 349                         goto ilseq;
 350                 range = &ranges[(size_t)graphic->charset];
 351                 len = graphic->length;
 352         }
 353         if (psenc->inuse != candidate) {
 354                 init = INIT0(ei);
 355                 if (SET(psenc->inuse) == SET(candidate)) {
 356                         if (INIT(psenc->inuse) != init ||
 357                             psenc->inuse == init || candidate == init)
 358                                 init = NULL;
 359                 } else if (candidate == (init = INIT(candidate))) {
 360                         init = NULL;
 361                 }
 362                 if (init != NULL) {
 363                         if (n < 2)
 364                                 return (E2BIG);
 365                         n -= 2;
 366                         psenc->ch[psenc->chlen++] = ESCAPE_CHAR;
 367                         psenc->ch[psenc->chlen++] = ESC(init);
 368                 }
 369                 if (n < 2)
 370                         return (E2BIG);
 371                 n -= 2;
 372                 psenc->ch[psenc->chlen++] = ESCAPE_CHAR;
 373                 psenc->ch[psenc->chlen++] = ESC(candidate);
 374                 psenc->inuse = candidate;
 375         }
 376         if (n < len)
 377                 return (E2BIG);
 378         while (len-- > 0) {
 379                 ch = (wc >> (len * 8)) & 0xFF;
 380                 if (range->start > ch || range->end < ch)
 381                         goto ilseq;
 382                 psenc->ch[psenc->chlen++] = ch | bit;
 383         }
 384         memcpy(s, psenc->ch, psenc->chlen);
 385         *nresult = psenc->chlen;
 386         psenc->chlen = 0;
 387
 388         return (0);
 389
 390 ilseq:
 391         *nresult = (size_t)-1;
 392         return (EILSEQ);
 393 }
 394
 395 static __inline int
 396 _citrus_HZ_put_state_reset(_HZEncodingInfo * __restrict ei,
 397     char * __restrict s, size_t n, _HZState * __restrict psenc,
 398     size_t * __restrict nresult)
 399 {
 400         escape_t *candidate;
 401
 402         if (psenc->chlen != 0 || psenc->inuse == NULL)
 403                 return (EINVAL);
 404         candidate = INIT0(ei);
 405         if (psenc->inuse != candidate) {
 406                 if (n < 2)
 407                         return (E2BIG);
 408                 n -= 2;
 409                 psenc->ch[psenc->chlen++] = ESCAPE_CHAR;
 410                 psenc->ch[psenc->chlen++] = ESC(candidate);
 411         }
 412         if (n < 1)
 413                 return (E2BIG);
 414         if (psenc->chlen > 0)
 415                 memcpy(s, psenc->ch, psenc->chlen);
 416         *nresult = psenc->chlen;
 417         _citrus_HZ_init_state(ei, psenc);
 418
 419         return (0);
 420 }
 421
 422 static __inline int
 423 _citrus_HZ_stdenc_get_state_desc_generic(_HZEncodingInfo * __restrict ei,
 424     _HZState * __restrict psenc, int * __restrict rstate)
 425 {
 426
 427         if (psenc->chlen < 0 || psenc->inuse == NULL)
 428                 return (EINVAL);
 429         *rstate = (psenc->chlen == 0)
 430             ? ((psenc->inuse == INIT0(ei))
 431                 ? _STDENC_SDGEN_INITIAL
 432                 : _STDENC_SDGEN_STABLE)
 433             : ((psenc->ch[0] == ESCAPE_CHAR)
 434                 ? _STDENC_SDGEN_INCOMPLETE_SHIFT
 435                 : _STDENC_SDGEN_INCOMPLETE_CHAR);
 436
 437         return (0);
 438 }
 439
 440 static __inline int
 441 /*ARGSUSED*/
 442 _citrus_HZ_stdenc_wctocs(_HZEncodingInfo * __restrict ei __unused,
 443     _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
 444 {
 445         int bit;
 446
 447         if (wc & 0x80) {
 448                 bit = 0x80;
 449                 wc &= ~0x80;
 450         } else
 451                 bit = 0x0;
 452         if ((uint32_t)wc <= 0x7F) {
 453                 *csid = (_csid_t)bit;
 454                 *idx = (_index_t)wc;
 455         } else if ((uint32_t)wc <= 0x7F7F) {
 456                 *csid = (_csid_t)(bit | 0x8000);
 457                 *idx = (_index_t)wc;
 458         } else {
 459                 *csid = (_index_t)(wc & ~0x00FFFF7F);
 460                 *idx = (_csid_t)(wc & 0x00FFFF7F);
 461         }
 462
 463         return (0);
 464 }
 465
 466 static __inline int
 467 /*ARGSUSED*/
 468 _citrus_HZ_stdenc_cstowc(_HZEncodingInfo * __restrict ei __unused,
 469     wchar_t * __restrict wc, _csid_t csid, _index_t idx)
 470 {
 471
 472         *wc = (wchar_t)idx;
 473         switch (csid) {
 474         case 0x80:
 475         case 0x8080:
 476                 *wc |= (wchar_t)0x80;
 477                 /*FALLTHROUGH*/
 478         case 0x0:
 479         case 0x8000:
 480                 break;
 481         default:
 482                 *wc |= (wchar_t)csid;
 483         }
 484
 485         return (0);
 486 }
 487
 488 static void
 489 _citrus_HZ_encoding_module_uninit(_HZEncodingInfo *ei)
 490 {
 491         escape_t *escape;
 492
 493         while ((escape = TAILQ_FIRST(E0SET(ei))) != NULL) {
 494                 TAILQ_REMOVE(E0SET(ei), escape, entry);
 495                 free(GL(escape));
 496                 free(GR(escape));
 497                 free(escape);
 498         }
 499         while ((escape = TAILQ_FIRST(E1SET(ei))) != NULL) {
 500                 TAILQ_REMOVE(E1SET(ei), escape, entry);
 501                 free(GL(escape));
 502                 free(GR(escape));
 503                 free(escape);
 504         }
 505 }
 506
 507 static int
 508 _citrus_HZ_parse_char(void *context, const char *name __unused, const char *s)
 509 {
 510         escape_t *escape;
 511         void **p;
 512
 513         p = (void **)context;
 514         escape = (escape_t *)p[0];
 515         if (escape->ch != '\0')
 516                 return (EINVAL);
 517         escape->ch = *s++;
 518         if (escape->ch == ESCAPE_CHAR || *s != '\0')
 519                 return (EINVAL);
 520
 521         return (0);
 522 }
 523
 524 static int
 525 _citrus_HZ_parse_graphic(void *context, const char *name, const char *s)
 526 {
 527         _HZEncodingInfo *ei;
 528         escape_t *escape;
 529         graphic_t *graphic;
 530         void **p;
 531
 532         p = (void **)context;
 533         escape = (escape_t *)p[0];
 534         ei = (_HZEncodingInfo *)p[1];
 535         graphic = calloc(1, sizeof(*graphic));
 536         if (graphic == NULL)
 537                 return (ENOMEM);
 538         if (strcmp("GL", name) == 0) {
 539                 if (GL(escape) != NULL)
 540                         goto release;
 541                 GL(escape) = graphic;
 542         } else if (strcmp("GR", name) == 0) {
 543                 if (GR(escape) != NULL)
 544                         goto release;
 545                 GR(escape) = graphic;
 546         } else {
 547 release:
 548                 free(graphic);
 549                 return (EINVAL);
 550         }
 551         graphic->escape = escape;
 552         if (_bcs_strncasecmp("ASCII", s, 5) == 0) {
 553                 if (s[5] != '\0')
 554                         return (EINVAL);
 555                 graphic->charset = ASCII;
 556                 graphic->length = 1;
 557                 ei->ascii = graphic;
 558                 return (0);
 559         } else if (_bcs_strncasecmp("GB2312", s, 6) == 0) {
 560                 if (s[6] != '\0')
 561                         return (EINVAL);
 562                 graphic->charset = GB2312;
 563                 graphic->length = 2;
 564                 ei->gb2312 = graphic;
 565                 return (0);
 566         } else if (strncmp("94*", s, 3) == 0)
 567                 graphic->charset = CS94;
 568         else if (strncmp("96*", s, 3) == 0)
 569                 graphic->charset = CS96;
 570         else
 571                 return (EINVAL);
 572         s += 3;
 573         switch(*s) {
 574         case '1': case '2': case '3':
 575                 graphic->length = (size_t)(*s - '0');
 576                 if (*++s == '\0')
 577                         break;
 578         /*FALLTHROUGH*/
 579         default:
 580                 return (EINVAL);
 581         }
 582         return (0);
 583 }
 584
 585 static const _citrus_prop_hint_t escape_hints[] = {
 586 _CITRUS_PROP_HINT_STR("CH", &_citrus_HZ_parse_char),
 587 _CITRUS_PROP_HINT_STR("GL", &_citrus_HZ_parse_graphic),
 588 _CITRUS_PROP_HINT_STR("GR", &_citrus_HZ_parse_graphic),
 589 _CITRUS_PROP_HINT_END
 590 };
 591
 592 static int
 593 _citrus_HZ_parse_escape(void *context, const char *name, const char *s)
 594 {
 595         _HZEncodingInfo *ei;
 596         escape_t *escape;
 597         void *p[2];
 598
 599         ei = (_HZEncodingInfo *)context;
 600         escape = calloc(1, sizeof(*escape));
 601         if (escape == NULL)
 602                 return (EINVAL);
 603         if (strcmp("0", name) == 0) {
 604                 escape->set = E0SET(ei);
 605                 TAILQ_INSERT_TAIL(E0SET(ei), escape, entry);
 606         } else if (strcmp("1", name) == 0) {
 607                 escape->set = E1SET(ei);
 608                 TAILQ_INSERT_TAIL(E1SET(ei), escape, entry);
 609         } else {
 610                 free(escape);
 611                 return (EINVAL);
 612         }
 613         p[0] = (void *)escape;
 614         p[1] = (void *)ei;
 615         return (_citrus_prop_parse_variable(
 616             escape_hints, (void *)&p[0], s, strlen(s)));
 617 }
 618
 619 static const _citrus_prop_hint_t root_hints[] = {
 620 _CITRUS_PROP_HINT_STR("0", &_citrus_HZ_parse_escape),
 621 _CITRUS_PROP_HINT_STR("1", &_citrus_HZ_parse_escape),
 622 _CITRUS_PROP_HINT_END
 623 };
 624
 625 static int
 626 _citrus_HZ_encoding_module_init(_HZEncodingInfo * __restrict ei,
 627     const void * __restrict var, size_t lenvar)
 628 {
 629         int errnum;
 630
 631         memset(ei, 0, sizeof(*ei));
 632         TAILQ_INIT(E0SET(ei));
 633         TAILQ_INIT(E1SET(ei));
 634         errnum = _citrus_prop_parse_variable(
 635             root_hints, (void *)ei, var, lenvar);
 636         if (errnum != 0)
 637                 _citrus_HZ_encoding_module_uninit(ei);
 638         return (errnum);
 639 }
 640
 641 /* ----------------------------------------------------------------------
 642  * public interface for stdenc
 643  */
 644
 645 _CITRUS_STDENC_DECLS(HZ);
 646 _CITRUS_STDENC_DEF_OPS(HZ);
 647
 648 #include "citrus_stdenc_template.h"