src/record_conv.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2013 Index Data
   3  * See the file LICENSE for details.
   4  */
   5 /**
   6  * \file record_conv.c
   7  * \brief Record Conversions utility
   8  */
   9
  10 #if HAVE_CONFIG_H
  11 #include <config.h>
  12 #endif
  13
  14 #include <string.h>
  15 #include <yaz/yaz-iconv.h>
  16 #include <yaz/marcdisp.h>
  17 #include <yaz/record_conv.h>
  18 #include <yaz/wrbuf.h>
  19 #include <yaz/xmalloc.h>
  20 #include <yaz/nmem.h>
  21 #include <yaz/tpath.h>
  22 #include <yaz/z-opac.h>
  23
  24 #if YAZ_HAVE_XML2
  25 #include <libxml/parser.h>
  26 #include <libxml/tree.h>
  27 #include <libxml/xinclude.h>
  28 #if YAZ_HAVE_XSLT
  29 #include <libxslt/xsltutils.h>
  30 #include <libxslt/transform.h>
  31 #endif
  32 #if YAZ_HAVE_EXSLT
  33 #include <libexslt/exslt.h>
  34 #endif
  35
  36 /** \brief The internal structure for yaz_record_conv_t */
  37 struct yaz_record_conv_struct {
  38     /** \brief memory for configuration */
  39     NMEM nmem;
  40
  41     /** \brief conversion rules (allocated using NMEM) */
  42     struct yaz_record_conv_rule *rules;
  43
  44     /** \brief pointer to last conversion rule pointer in chain */
  45     struct yaz_record_conv_rule **rules_p;
  46
  47     /** \brief string buffer for error messages */
  48     WRBUF wr_error;
  49
  50     /** \brief path for opening files  */
  51     char *path;
  52 };
  53
  54 struct marc_info {
  55     NMEM nmem;
  56     const char *input_charset;
  57     const char *output_charset;
  58     int input_format_mode;
  59     int output_format_mode;
  60     const char *leader_spec;
  61 };
  62
  63 /** \brief tranformation info (rule info) */
  64 struct yaz_record_conv_rule {
  65     struct yaz_record_conv_type *type;
  66     void *info;
  67     struct yaz_record_conv_rule *next;
  68 };
  69
  70 /** \brief reset rules+configuration */
  71 static void yaz_record_conv_reset(yaz_record_conv_t p)
  72 {
  73
  74     struct yaz_record_conv_rule *r;
  75     for (r = p->rules; r; r = r->next)
  76     {
  77         r->type->destroy(r->info);
  78     }
  79     wrbuf_rewind(p->wr_error);
  80     nmem_reset(p->nmem);
  81
  82     p->rules = 0;
  83
  84     p->rules_p = &p->rules;
  85 }
  86
  87 void yaz_record_conv_destroy(yaz_record_conv_t p)
  88 {
  89     if (p)
  90     {
  91         yaz_record_conv_reset(p);
  92         nmem_destroy(p->nmem);
  93         wrbuf_destroy(p->wr_error);
  94
  95         xfree(p->path);
  96         xfree(p);
  97     }
  98 }
  99
 100 #if YAZ_HAVE_XSLT
 101 struct xslt_info {
 102     NMEM nmem;
 103     xmlDocPtr xsp_doc;
 104     const char **xsl_parms;
 105 };
 106
 107 static void *construct_xslt(const xmlNode *ptr,
 108                             const char *path, WRBUF wr_error)
 109 {
 110     struct _xmlAttr *attr;
 111     const char *stylesheet = 0;
 112     struct xslt_info *info = 0;
 113     NMEM nmem = 0;
 114     int max_parms = 10;
 115     int no_parms = 0;
 116
 117     if (strcmp((const char *) ptr->name, "xslt"))
 118         return 0;
 119
 120     for (attr = ptr->properties; attr; attr = attr->next)
 121     {
 122         if (!xmlStrcmp(attr->name, BAD_CAST "stylesheet") &&
 123             attr->children && attr->children->type == XML_TEXT_NODE)
 124             stylesheet = (const char *) attr->children->content;
 125         else
 126         {
 127             wrbuf_printf(wr_error, "Bad attribute '%s'"
 128                          "Expected stylesheet.", attr->name);
 129             return 0;
 130         }
 131     }
 132     nmem = nmem_create();
 133     info = nmem_malloc(nmem, sizeof(*info));
 134     info->nmem = nmem;
 135     info->xsl_parms = nmem_malloc(
 136         nmem, (2 * max_parms + 1) * sizeof(*info->xsl_parms));
 137
 138     for (ptr = ptr->children; ptr; ptr = ptr->next)
 139     {
 140         const char *name = 0;
 141         const char *value = 0;
 142         char *qvalue = 0;
 143         if (ptr->type != XML_ELEMENT_NODE)
 144             continue;
 145         if (strcmp((const char *) ptr->name, "param"))
 146         {
 147             wrbuf_printf(wr_error, "Bad element '%s'"
 148                          "Expected param.", ptr->name);
 149             nmem_destroy(nmem);
 150             return 0;
 151         }
 152         for (attr = ptr->properties; attr; attr = attr->next)
 153         {
 154             if (!xmlStrcmp(attr->name, BAD_CAST "name") &&
 155                 attr->children && attr->children->type == XML_TEXT_NODE)
 156                 name = (const char *) attr->children->content;
 157             else if (!xmlStrcmp(attr->name, BAD_CAST "value") &&
 158                 attr->children && attr->children->type == XML_TEXT_NODE)
 159                 value = (const char *) attr->children->content;
 160             else
 161             {
 162                 wrbuf_printf(wr_error, "Bad attribute '%s'"
 163                              "Expected name or value.", attr->name);
 164                 nmem_destroy(nmem);
 165                 return 0;
 166             }
 167         }
 168         if (!name || !value)
 169         {
 170             wrbuf_printf(wr_error, "Missing attributes name or value");
 171             nmem_destroy(nmem);
 172             return 0;
 173         }
 174         if (no_parms >= max_parms)
 175         {
 176             wrbuf_printf(wr_error, "Too many parameters given");
 177             nmem_destroy(nmem);
 178             return 0;
 179         }
 180
 181         qvalue = nmem_malloc(nmem, strlen(value) + 3);
 182         strcpy(qvalue, "\'");
 183         strcat(qvalue, value);
 184         strcat(qvalue, "\'");
 185
 186         info->xsl_parms[2 * no_parms] = nmem_strdup(nmem, name);
 187         info->xsl_parms[2 * no_parms + 1] = qvalue;
 188         no_parms++;
 189     }
 190
 191     info->xsl_parms[2 * no_parms] = '\0';
 192
 193     if (!stylesheet)
 194     {
 195         wrbuf_printf(wr_error, "Element <xslt>: "
 196                      "attribute 'stylesheet' expected");
 197         nmem_destroy(nmem);
 198     }
 199     else
 200     {
 201         char fullpath[1024];
 202         xsltStylesheetPtr xsp;
 203         if (!yaz_filepath_resolve(stylesheet, path, 0, fullpath))
 204         {
 205             wrbuf_printf(wr_error, "Element <xslt stylesheet=\"%s\"/>:"
 206                          " could not locate stylesheet '%s'",
 207                          stylesheet, stylesheet);
 208             if (path)
 209                 wrbuf_printf(wr_error, " with path '%s'", path);
 210
 211             nmem_destroy(nmem);
 212             return 0;
 213         }
 214         info->xsp_doc = xmlParseFile(fullpath);
 215         if (!info->xsp_doc)
 216         {
 217             wrbuf_printf(wr_error, "Element: <xslt stylesheet=\"%s\"/>:"
 218                          " xml parse failed: %s", stylesheet, fullpath);
 219             if (path)
 220                 wrbuf_printf(wr_error, " with path '%s'", path);
 221             nmem_destroy(nmem);
 222             return 0;
 223         }
 224         /* need to copy this before passing it to the processor. It will
 225            be encapsulated in the xsp and destroyed by xsltFreeStylesheet */
 226         xsp = xsltParseStylesheetDoc(xmlCopyDoc(info->xsp_doc, 1));
 227         if (!xsp)
 228         {
 229             wrbuf_printf(wr_error, "Element: <xslt stylesheet=\"%s\"/>:"
 230                          " xslt parse failed: %s", stylesheet, fullpath);
 231             if (path)
 232                 wrbuf_printf(wr_error, " with path '%s'", path);
 233             wrbuf_printf(wr_error, " ("
 234 #if YAZ_HAVE_EXSLT
 235
 236                          "EXSLT enabled"
 237 #else
 238                          "EXSLT not supported"
 239 #endif
 240                          ")");
 241             xmlFreeDoc(info->xsp_doc);
 242             nmem_destroy(info->nmem);
 243         }
 244         else
 245         {
 246             xsltFreeStylesheet(xsp);
 247             return info;
 248         }
 249     }
 250     return 0;
 251 }
 252
 253 static int convert_xslt(void *vinfo, WRBUF record, WRBUF wr_error)
 254 {
 255     int ret = 0;
 256     struct xslt_info *info = vinfo;
 257
 258     xmlDocPtr doc = xmlParseMemory(wrbuf_buf(record),
 259                                    wrbuf_len(record));
 260     if (!doc)
 261     {
 262         wrbuf_printf(wr_error, "xmlParseMemory failed");
 263         ret = -1;
 264     }
 265     else
 266     {
 267         xmlDocPtr xsp_doc = xmlCopyDoc(info->xsp_doc, 1);
 268         xsltStylesheetPtr xsp = xsltParseStylesheetDoc(xsp_doc);
 269         xmlDocPtr res = xsltApplyStylesheet(xsp, doc, info->xsl_parms);
 270         if (res)
 271         {
 272             xmlChar *out_buf = 0;
 273             int out_len;
 274
 275 #if HAVE_XSLTSAVERESULTTOSTRING
 276             xsltSaveResultToString(&out_buf, &out_len, res, xsp);
 277 #else
 278             xmlDocDumpFormatMemory (res, &out_buf, &out_len, 1);
 279 #endif
 280             if (!out_buf)
 281             {
 282                 wrbuf_printf(wr_error,
 283                              "xsltSaveResultToString failed");
 284                 ret = -1;
 285             }
 286             else
 287             {
 288                 wrbuf_rewind(record);
 289                 wrbuf_write(record, (const char *) out_buf, out_len);
 290
 291                 xmlFree(out_buf);
 292             }
 293             xmlFreeDoc(res);
 294         }
 295         else
 296         {
 297             wrbuf_printf(wr_error, "xsltApplyStylesheet failed");
 298             ret = -1;
 299         }
 300         xmlFreeDoc(doc);
 301         xsltFreeStylesheet(xsp); /* frees xsp_doc too */
 302     }
 303     return ret;
 304 }
 305
 306 static void destroy_xslt(void *vinfo)
 307 {
 308     struct xslt_info *info = vinfo;
 309
 310     if (info)
 311     {
 312         xmlFreeDoc(info->xsp_doc);
 313         nmem_destroy(info->nmem);
 314     }
 315 }
 316
 317 /* YAZ_HAVE_XSLT */
 318 #endif
 319
 320
 321 static void *construct_marc(const xmlNode *ptr,
 322                             const char *path, WRBUF wr_error)
 323 {
 324     NMEM nmem = nmem_create();
 325     struct marc_info *info = nmem_malloc(nmem, sizeof(*info));
 326     struct _xmlAttr *attr;
 327     const char *input_format = 0;
 328     const char *output_format = 0;
 329
 330     if (strcmp((const char *) ptr->name, "marc"))
 331     {
 332         nmem_destroy(nmem);
 333         return 0;
 334     }
 335
 336     info->nmem = nmem;
 337     info->input_charset = 0;
 338     info->output_charset = 0;
 339     info->input_format_mode = 0;
 340     info->output_format_mode = 0;
 341     info->leader_spec = 0;
 342
 343     for (attr = ptr->properties; attr; attr = attr->next)
 344     {
 345         if (!xmlStrcmp(attr->name, BAD_CAST "inputcharset") &&
 346             attr->children && attr->children->type == XML_TEXT_NODE)
 347             info->input_charset = (const char *) attr->children->content;
 348         else if (!xmlStrcmp(attr->name, BAD_CAST "outputcharset") &&
 349             attr->children && attr->children->type == XML_TEXT_NODE)
 350             info->output_charset = (const char *) attr->children->content;
 351         else if (!xmlStrcmp(attr->name, BAD_CAST "inputformat") &&
 352             attr->children && attr->children->type == XML_TEXT_NODE)
 353             input_format = (const char *) attr->children->content;
 354         else if (!xmlStrcmp(attr->name, BAD_CAST "outputformat") &&
 355             attr->children && attr->children->type == XML_TEXT_NODE)
 356             output_format = (const char *) attr->children->content;
 357         else if (!xmlStrcmp(attr->name, BAD_CAST "leaderspec") &&
 358                  attr->children && attr->children->type == XML_TEXT_NODE)
 359             info->leader_spec =
 360                 nmem_strdup(info->nmem,(const char *) attr->children->content);
 361         else
 362         {
 363             wrbuf_printf(wr_error, "Element <marc>: expected attributes"
 364                          "'inputformat', 'inputcharset', 'outputformat' or"
 365                          " 'outputcharset', got attribute '%s'",
 366                          attr->name);
 367             nmem_destroy(info->nmem);
 368             return 0;
 369         }
 370     }
 371     if (!input_format)
 372     {
 373         wrbuf_printf(wr_error, "Element <marc>: "
 374                      "attribute 'inputformat' required");
 375         nmem_destroy(info->nmem);
 376         return 0;
 377     }
 378     else if (!strcmp(input_format, "marc"))
 379     {
 380         info->input_format_mode = YAZ_MARC_ISO2709;
 381     }
 382     else if (!strcmp(input_format, "xml"))
 383     {
 384         info->input_format_mode = YAZ_MARC_MARCXML;
 385         /** Libxml2 generates UTF-8 encoding by default .
 386             So we convert from UTF-8 to outputcharset (if defined)
 387         */
 388         if (!info->input_charset && info->output_charset)
 389             info->input_charset = "utf-8";
 390     }
 391     else
 392     {
 393         wrbuf_printf(wr_error, "Element <marc inputformat='%s'>: "
 394                      " Unsupported input format"
 395                      " defined by attribute value",
 396                      input_format);
 397         nmem_destroy(info->nmem);
 398         return 0;
 399     }
 400
 401     if (!output_format)
 402     {
 403         wrbuf_printf(wr_error,
 404                      "Element <marc>: attribute 'outputformat' required");
 405         nmem_destroy(info->nmem);
 406         return 0;
 407     }
 408     else if (!strcmp(output_format, "line"))
 409     {
 410         info->output_format_mode = YAZ_MARC_LINE;
 411     }
 412     else if (!strcmp(output_format, "marcxml"))
 413     {
 414         info->output_format_mode = YAZ_MARC_MARCXML;
 415         if (info->input_charset && !info->output_charset)
 416             info->output_charset = "utf-8";
 417     }
 418     else if (!strcmp(output_format, "turbomarc"))
 419     {
 420         info->output_format_mode = YAZ_MARC_TURBOMARC;
 421         if (info->input_charset && !info->output_charset)
 422             info->output_charset = "utf-8";
 423     }
 424     else if (!strcmp(output_format, "marc"))
 425     {
 426         info->output_format_mode = YAZ_MARC_ISO2709;
 427     }
 428     else if (!strcmp(output_format, "marcxchange"))
 429     {
 430         info->output_format_mode = YAZ_MARC_XCHANGE;
 431         if (info->input_charset && !info->output_charset)
 432             info->output_charset = "utf-8";
 433     }
 434     else
 435     {
 436         wrbuf_printf(wr_error, "Element <marc outputformat='%s'>: "
 437                      " Unsupported output format"
 438                      " defined by attribute value",
 439                      output_format);
 440         nmem_destroy(info->nmem);
 441         return 0;
 442     }
 443     if (info->input_charset && info->output_charset)
 444     {
 445         yaz_iconv_t cd = yaz_iconv_open(info->output_charset,
 446                                         info->input_charset);
 447         if (!cd)
 448         {
 449             wrbuf_printf(wr_error,
 450                          "Element <marc inputcharset='%s' outputcharset='%s'>:"
 451                          " Unsupported character set mapping"
 452                          " defined by attribute values",
 453                          info->input_charset, info->output_charset);
 454             nmem_destroy(info->nmem);
 455             return 0;
 456         }
 457         yaz_iconv_close(cd);
 458     }
 459     else if (!info->output_charset)
 460     {
 461         wrbuf_printf(wr_error, "Element <marc>: "
 462                      "attribute 'outputcharset' missing");
 463         nmem_destroy(info->nmem);
 464         return 0;
 465     }
 466     else if (!info->input_charset)
 467     {
 468         wrbuf_printf(wr_error, "Element <marc>: "
 469                      "attribute 'inputcharset' missing");
 470         nmem_destroy(info->nmem);
 471         return 0;
 472     }
 473     info->input_charset = nmem_strdup(info->nmem, info->input_charset);
 474     info->output_charset = nmem_strdup(info->nmem, info->output_charset);
 475     return info;
 476 }
 477
 478 static int convert_marc(void *info, WRBUF record, WRBUF wr_error)
 479 {
 480     struct marc_info *mi = info;
 481     int ret = 0;
 482
 483     yaz_iconv_t cd = yaz_iconv_open(mi->output_charset, mi->input_charset);
 484     yaz_marc_t mt = yaz_marc_create();
 485
 486     yaz_marc_xml(mt, mi->output_format_mode);
 487     if (mi->leader_spec)
 488         yaz_marc_leader_spec(mt, mi->leader_spec);
 489
 490     if (cd)
 491         yaz_marc_iconv(mt, cd);
 492     if (mi->input_format_mode == YAZ_MARC_ISO2709)
 493     {
 494         int sz = yaz_marc_read_iso2709(mt, wrbuf_buf(record),
 495                                        wrbuf_len(record));
 496         if (sz > 0)
 497             ret = 0;
 498         else
 499             ret = -1;
 500     }
 501     else if (mi->input_format_mode == YAZ_MARC_MARCXML ||
 502              mi->input_format_mode == YAZ_MARC_TURBOMARC)
 503     {
 504         xmlDocPtr doc = xmlParseMemory(wrbuf_buf(record),
 505                                        wrbuf_len(record));
 506         if (!doc)
 507         {
 508             wrbuf_printf(wr_error, "xmlParseMemory failed");
 509             ret = -1;
 510         }
 511         else
 512         {
 513             ret = yaz_marc_read_xml(mt, xmlDocGetRootElement(doc));
 514             if (ret)
 515                 wrbuf_printf(wr_error, "yaz_marc_read_xml failed");
 516         }
 517         xmlFreeDoc(doc);
 518     }
 519     else
 520     {
 521         wrbuf_printf(wr_error, "unsupported input format");
 522         ret = -1;
 523     }
 524     if (ret == 0)
 525     {
 526         wrbuf_rewind(record);
 527         ret = yaz_marc_write_mode(mt, record);
 528         if (ret)
 529             wrbuf_printf(wr_error, "yaz_marc_write_mode failed");
 530     }
 531     if (cd)
 532         yaz_iconv_close(cd);
 533     yaz_marc_destroy(mt);
 534     return ret;
 535 }
 536
 537 static void destroy_marc(void *info)
 538 {
 539     struct marc_info *mi = info;
 540
 541     nmem_destroy(mi->nmem);
 542 }
 543
 544 int yaz_record_conv_configure_t(yaz_record_conv_t p, const xmlNode *ptr,
 545                                 struct yaz_record_conv_type *types)
 546 {
 547     struct yaz_record_conv_type bt[2];
 548
 549     /* register marc */
 550     bt[0].construct = construct_marc;
 551     bt[0].convert = convert_marc;
 552     bt[0].destroy = destroy_marc;
 553
 554 #if YAZ_HAVE_XSLT
 555     /* register xslt */
 556     bt[0].next = &bt[1];
 557     bt[1].next = types;
 558     bt[1].construct = construct_xslt;
 559     bt[1].convert = convert_xslt;
 560     bt[1].destroy = destroy_xslt;
 561 #else
 562     bt[0].next = types;
 563 #endif
 564
 565     yaz_record_conv_reset(p);
 566
 567     /* parsing element children */
 568     for (ptr = ptr->children; ptr; ptr = ptr->next)
 569     {
 570         struct yaz_record_conv_type *t;
 571         struct yaz_record_conv_rule *r;
 572         void *info = 0;
 573         if (ptr->type != XML_ELEMENT_NODE)
 574             continue;
 575         for (t = &bt[0]; t; t = t->next)
 576         {
 577             wrbuf_rewind(p->wr_error);
 578             info = t->construct(ptr, p->path, p->wr_error);
 579
 580             if (info || wrbuf_len(p->wr_error))
 581                 break;
 582             /* info== 0 and no error reported , ie not handled by it */
 583         }
 584         if (!info)
 585         {
 586             if (wrbuf_len(p->wr_error) == 0)
 587                 wrbuf_printf(p->wr_error, "Element <backend>: expected "
 588                              "<marc> or <xslt> element, got <%s>"
 589                              , ptr->name);
 590             return -1;
 591         }
 592         r = (struct yaz_record_conv_rule *) nmem_malloc(p->nmem, sizeof(*r));
 593         r->next = 0;
 594         r->info = info;
 595         r->type = nmem_malloc(p->nmem, sizeof(*t));
 596         memcpy(r->type, t, sizeof(*t));
 597         *p->rules_p = r;
 598         p->rules_p = &r->next;
 599     }
 600     return 0;
 601 }
 602
 603 int yaz_record_conv_configure(yaz_record_conv_t p, const xmlNode *ptr)
 604 {
 605     return yaz_record_conv_configure_t(p, ptr, 0);
 606 }
 607
 608 static int yaz_record_conv_record_rule(yaz_record_conv_t p,
 609                                        struct yaz_record_conv_rule *r,
 610                                        const char *input_record_buf,
 611                                        size_t input_record_len,
 612                                        WRBUF output_record)
 613 {
 614     int ret = 0;
 615     WRBUF record = output_record; /* pointer transfer */
 616     wrbuf_rewind(p->wr_error);
 617
 618     wrbuf_write(record, input_record_buf, input_record_len);
 619     for (; ret == 0 && r; r = r->next)
 620         ret = r->type->convert(r->info, record, p->wr_error);
 621     return ret;
 622 }
 623
 624 int yaz_record_conv_opac_record(yaz_record_conv_t p,
 625                                 Z_OPACRecord *input_record,
 626                                 WRBUF output_record)
 627 {
 628     int ret = 0;
 629     struct yaz_record_conv_rule *r = p->rules;
 630     if (!r || r->type->construct != construct_marc)
 631     {
 632         wrbuf_puts(p->wr_error, "Expecting MARC rule as first rule for OPAC");
 633         ret = -1; /* no marc rule so we can't do OPAC */
 634     }
 635     else
 636     {
 637         struct marc_info *mi = r->info;
 638
 639         WRBUF res = wrbuf_alloc();
 640         yaz_marc_t mt = yaz_marc_create();
 641         yaz_iconv_t cd = yaz_iconv_open(mi->output_charset,
 642                                         mi->input_charset);
 643
 644         wrbuf_rewind(p->wr_error);
 645         yaz_marc_xml(mt, mi->output_format_mode);
 646
 647         yaz_marc_iconv(mt, cd);
 648
 649         yaz_opac_decode_wrbuf(mt, input_record, res);
 650         if (ret != -1)
 651         {
 652             ret = yaz_record_conv_record_rule(p,
 653                                               r->next,
 654                                               wrbuf_buf(res), wrbuf_len(res),
 655                                               output_record);
 656         }
 657         yaz_marc_destroy(mt);
 658         if (cd)
 659             yaz_iconv_close(cd);
 660         wrbuf_destroy(res);
 661     }
 662     return ret;
 663 }
 664
 665 int yaz_record_conv_record(yaz_record_conv_t p,
 666                            const char *input_record_buf,
 667                            size_t input_record_len,
 668                            WRBUF output_record)
 669 {
 670     return yaz_record_conv_record_rule(p, p->rules,
 671                                        input_record_buf,
 672                                        input_record_len, output_record);
 673 }
 674
 675 const char *yaz_record_conv_get_error(yaz_record_conv_t p)
 676 {
 677     return wrbuf_cstr(p->wr_error);
 678 }
 679
 680 void yaz_record_conv_set_path(yaz_record_conv_t p, const char *path)
 681 {
 682     xfree(p->path);
 683     p->path = 0;
 684     if (path)
 685         p->path = xstrdup(path);
 686 }
 687
 688 yaz_record_conv_t yaz_record_conv_create()
 689 {
 690     yaz_record_conv_t p = (yaz_record_conv_t) xmalloc(sizeof(*p));
 691     p->nmem = nmem_create();
 692     p->wr_error = wrbuf_alloc();
 693     p->rules = 0;
 694     p->path = 0;
 695 #if YAZ_HAVE_EXSLT
 696     exsltRegisterAll();
 697 #endif
 698     return p;
 699 }
 700
 701 /* YAZ_HAVE_XML2 */
 702 #endif
 703
 704 /*
 705  * Local variables:
 706  * c-basic-offset: 4
 707  * c-file-style: "Stroustrup"
 708  * indent-tabs-mode: nil
 709  * End:
 710  * vim: shiftwidth=4 tabstop=8 expandtab
 711  */
 712