2 * Copyright (C) 1994-1997, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1997-09-09 13:38:14 adam
8 * Partial port to WIN95/NT.
10 * Revision 1.7 1997/09/05 15:30:10 adam
11 * Changed prototype for chr_map_input - added const.
12 * Added support for C++, headers uses extern "C" for public definitions.
14 * Revision 1.6 1997/09/04 13:54:40 adam
15 * Added MARC filter - type grs.marc.<syntax> where syntax refers
16 * to abstract syntax. New method tellf in retrieve/extract method.
18 * Revision 1.5 1997/07/15 16:29:03 adam
19 * Initialized dummy variable to keep checker gcc happy.
21 * Revision 1.4 1997/04/30 08:56:08 quinn
24 * Revision 1.2 1996/10/11 16:06:43 quinn
25 * Revision 1.3 1997/02/24 10:41:50 adam
26 * Cleanup of code and commented out the "end element-end-record" code.
28 * Revision 1.2 1996/10/11 16:06:43 quinn
29 * Fixed arguments to nodetogr
31 * Revision 1.1 1996/10/11 10:57:25 adam
32 * New module recctrl. Used to manage records (extract/retrieval).
34 * Revision 1.29 1996/10/08 10:30:21 quinn
37 * Revision 1.28 1996/10/07 16:06:40 quinn
40 * Revision 1.27 1996/06/11 10:54:12 quinn
43 * Revision 1.26 1996/06/06 12:08:45 quinn
44 * Added showRecord function
46 * Revision 1.25 1996/06/04 14:18:53 quinn
49 * Revision 1.24 1996/06/04 13:27:54 quinn
50 * More work on charmapping
52 * Revision 1.23 1996/06/04 10:19:01 adam
53 * Minor changes - removed include of ctype.h.
55 * Revision 1.22 1996/06/03 10:15:27 quinn
56 * Various character-mapping.
58 * Revision 1.21 1996/05/31 13:27:24 quinn
59 * Character-conversion in phrases, too.
61 * Revision 1.19 1996/05/16 15:31:14 quinn
64 * Revision 1.18 1996/05/09 07:28:56 quinn
65 * Work towards phrases and multiple registers
67 * Revision 1.17 1996/05/01 13:46:37 adam
68 * First work on multiple records in one file.
69 * New option, -offset, to the "unread" command in the filter module.
71 * Revision 1.16 1996/01/17 14:57:54 adam
72 * Prototype changed for reader functions in extract/retrieve. File
73 * is identified by 'void *' instead of 'int.
75 * Revision 1.15 1996/01/08 19:15:47 adam
76 * New input filter that works!
78 * Revision 1.14 1995/12/15 12:36:11 adam
79 * Retrieval calls data1_read_regx when subType is specified.
81 * Revision 1.13 1995/12/15 12:24:43 quinn
82 * *** empty log message ***
84 * Revision 1.12 1995/12/15 12:20:28 quinn
85 * *** empty log message ***
87 * Revision 1.11 1995/12/15 12:07:57 quinn
88 * Changed extraction strategy.
90 * Revision 1.10 1995/12/14 11:10:48 quinn
93 * Revision 1.9 1995/12/13 17:14:05 quinn
94 * *** empty log message ***
96 * Revision 1.8 1995/12/13 15:33:18 quinn
97 * *** empty log message ***
99 * Revision 1.7 1995/12/13 13:45:39 quinn
100 * Changed data1 to use nmem.
102 * Revision 1.6 1995/12/04 14:22:30 adam
103 * Extra arg to recType_byName.
104 * Started work on new regular expression parsed input to
105 * structured records.
107 * Revision 1.5 1995/11/28 14:18:37 quinn
110 * Revision 1.4 1995/11/21 13:14:49 quinn
111 * Fixed end-of-data-field problem (maybe).
113 * Revision 1.3 1995/11/15 19:13:09 adam
114 * Work on record management.
120 #include <sys/types.h>
132 #define GRS_MAX_WORD 512
134 static int seqno = 0;
136 static data1_node *read_grs_type (struct grs_read_info *p, const char *type)
140 data1_node *(*func)(struct grs_read_info *p);
142 { "sgml", grs_read_sgml },
143 { "regx", grs_read_regx },
144 { "marc", grs_read_marc },
147 const char *cp = strchr (type, '.');
150 if (cp == NULL || cp == type)
152 cp = strlen(type) + type;
156 strcpy (p->type, cp+1);
157 for (i=0; tab[i].type; i++)
159 if (!memcmp (type, tab[i].type, cp-type))
160 return (tab[i].func)(p);
165 static void grs_init(void)
169 static void dumpkeys_word(data1_node *n, struct recExtractCtrl *p,
172 const char *b = n->u.data.data;
174 const char **map = 0;
176 remain = n->u.data.len - (b - n->u.data.data);
178 map = (*p->map_chrs_input)(&b, remain);
183 char buf[GRS_MAX_WORD+1];
187 while (map && *map && **map == *CHR_SPACE)
189 remain = n->u.data.len - (b - n->u.data.data);
191 map = (*p->map_chrs_input)(&b, remain);
198 while (map && *map && **map != *CHR_SPACE)
200 const char *cp = *map;
202 while (i < GRS_MAX_WORD && *cp)
204 remain = n->u.data.len - (b - n->u.data.data);
206 map = (*p->map_chrs_input)(&b, remain);
213 (*p->init)(&wrd); /* set defaults */
214 wrd.which = Word_String;
217 wrd.attrSet = att->parent->ordinal;
218 wrd.attrUse = att->locals->local;
223 static void dumpkeys_phrase(data1_node *n, struct recExtractCtrl *p,
226 const char *b = n->u.data.data;
227 char buf[GRS_MAX_WORD+1];
228 const char **map = 0;
232 remain = n->u.data.len - (b - n->u.data.data);
234 map = (*p->map_chrs_input)(&b, remain);
236 while (remain > 0 && i < GRS_MAX_WORD)
238 while (map && *map && **map == *CHR_SPACE)
240 remain = n->u.data.len - (b - n->u.data.data);
242 map = (*p->map_chrs_input)(&b, remain);
249 if (i && i < GRS_MAX_WORD)
250 buf[i++] = *CHR_SPACE;
251 while (map && *map && **map != *CHR_SPACE)
253 const char *cp = *map;
255 if (i >= GRS_MAX_WORD)
257 while (i < GRS_MAX_WORD && *cp)
259 remain = n->u.data.len - (b - n->u.data.data);
261 map = (*p->map_chrs_input)(&b, remain);
270 wrd.which = Word_Phrase;
273 wrd.attrSet = att->parent->ordinal;
274 wrd.attrUse = att->locals->local;
278 static int dumpkeys(data1_node *n, struct recExtractCtrl *p, int level)
280 for (; n; n = n->next)
282 if (p->flagShowRecords) /* display element description to user */
284 if (n->which == DATA1N_root)
286 printf("%*s", level * 4, "");
287 printf("Record type: '%s'\n", n->u.root.absyn->name);
289 else if (n->which == DATA1N_tag)
293 printf("%*s", level * 4, "");
294 if (!(e = n->u.tag.element))
295 printf("Local tag: '%s'\n", n->u.tag.tag);
298 printf("Elm: '%s' ", e->name);
301 data1_tag *t = e->tag;
303 printf("TagNam: '%s' ", t->names->name);
306 printf("%s[%d],", t->tagset->name, t->tagset->type);
309 if (t->which == DATA1T_numeric)
310 printf("%d)", t->value.numeric);
312 printf("'%s')", t->value.string);
320 if (dumpkeys(n->child, p, level + 1) < 0)
323 if (n->which == DATA1N_data)
325 data1_node *par = get_parent_tag(n);
326 data1_termlist *tlist = 0;
328 if (p->flagShowRecords)
330 printf("%*s", level * 4, "");
332 if (n->u.data.len > 20)
333 printf("'%.20s...'\n", n->u.data.data);
334 else if (n->u.data.len > 0)
335 printf("'%.*s'\n", n->u.data.len, n->u.data.data);
343 * cycle up towards the root until we find a tag with an att..
344 * this has the effect of indexing locally defined tags with
345 * the attribute of their ancestor in the record.
348 while (!par->u.tag.element)
349 if (!par->parent || !(par = get_parent_tag(par->parent)))
353 else if (par->u.tag.element->termlists)
354 tlist = par->u.tag.element->termlists;
358 for (; tlist; tlist = tlist->next)
360 if (p->flagShowRecords)
362 printf("%*sIdx: [", (level + 1) * 4, "");
363 switch (tlist->structure)
365 case DATA1S_word: printf("w"); break;
366 case DATA1S_phrase: printf("p"); break;
367 default: printf("?"); break;
370 printf("%s:%s [%d]\n", tlist->att->parent->name,
371 tlist->att->name, tlist->att->value);
373 else switch (tlist->structure)
376 dumpkeys_word(n, p, tlist->att); break;
378 dumpkeys_phrase(n, p, tlist->att); break;
380 logf(LOG_FATAL, "Bad structure type in dumpkeys");
385 if (p->flagShowRecords && n->which == DATA1N_root)
387 printf("%*s-------------\n\n", level * 4, "");
393 static int grs_extract(struct recExtractCtrl *p)
396 NMEM mem = nmem_create();
397 struct grs_read_info gri;
400 gri.readf = p->readf;
401 gri.seekf = p->seekf;
402 gri.tellf = p->tellf;
405 gri.offset = p->offset;
408 n = read_grs_type (&gri, p->subType);
411 if (dumpkeys(n, p, 0) < 0)
422 * Return: -1: Nothing done. 0: Ok. >0: Bib-1 diagnostic.
424 static int process_comp(data1_node *n, Z_RecordComposition *c)
426 data1_esetname *eset;
432 case Z_RecordComp_simple:
433 if (c->u.simple->which != Z_ElementSetNames_generic)
434 return 26; /* only generic form supported. Fix this later */
435 if (!(eset = data1_getesetbyname(n->u.root.absyn,
436 c->u.simple->u.generic)))
438 logf(LOG_LOG, "Unknown esetname '%s'", c->u.simple->u.generic);
439 return 25; /* invalid esetname */
441 logf(LOG_DEBUG, "Esetname '%s' in simple compspec",
442 c->u.simple->u.generic);
445 case Z_RecordComp_complex:
446 if (c->u.complex->generic)
448 /* insert check for schema */
449 if ((p = c->u.complex->generic->elementSpec))
452 case Z_ElementSpec_elementSetName:
453 if (!(eset = data1_getesetbyname(n->u.root.absyn,
454 p->u.elementSetName)))
456 logf(LOG_LOG, "Unknown esetname '%s'",
457 p->u.elementSetName);
458 return 25; /* invalid esetname */
460 logf(LOG_DEBUG, "Esetname '%s' in complex compspec",
461 p->u.elementSetName);
464 case Z_ElementSpec_externalSpec:
465 if (p->u.externalSpec->which == Z_External_espec1)
467 logf(LOG_DEBUG, "Got Espec-1");
468 espec = p->u.externalSpec-> u.espec1;
472 logf(LOG_LOG, "Unknown external espec.");
473 return 25; /* bad. what is proper diagnostic? */
482 return data1_doespec1(n, espec);
487 static int grs_retrieve(struct recRetrieveCtrl *p)
489 data1_node *node = 0, *onode = 0;
492 int res, selected = 0;
493 NMEM mem = nmem_create();
494 struct grs_read_info gri;
496 gri.readf = p->readf;
497 gri.seekf = p->seekf;
498 gri.tellf = p->tellf;
504 node = read_grs_type (&gri, p->subType);
505 /* node = data1_read_record(p->readf, p->fh, mem); */
511 if (p->score >= 0 && (new = data1_insert_taggeddata(node, node, "rank",
514 new->u.data.what = DATA1I_num;
515 new->u.data.data = new->u.data.lbuf;
516 sprintf(new->u.data.data, "%d", p->score);
517 new->u.data.len = strlen(new->u.data.data);
519 if ((new = data1_insert_taggeddata(node, node, "localControlNumber", mem)))
521 new->u.data.what = DATA1I_text;
522 new->u.data.data = new->u.data.lbuf;
523 sprintf(new->u.data.data, "%d", p->localno);
524 new->u.data.len = strlen(new->u.data.data);
526 if (p->input_format == VAL_GRS1 && node->u.root.absyn &&
527 node->u.root.absyn->reference != VAL_NONE)
532 oe.proto = PROTO_Z3950;
533 oe.oclass = CLASS_SCHEMA;
534 oe.value = node->u.root.absyn->reference;
536 if ((oid = oid_getoidbyent(&oe)))
542 for (ii = oid; *ii >= 0; ii++)
546 sprintf(p, "%d", *ii);
551 if ((new = data1_insert_taggeddata(node, node, "schemaIdentifier",
554 new->u.data.what = DATA1I_oid;
555 new->u.data.data = nmem_malloc(mem, p - tmp);
556 memcpy(new->u.data.data, tmp, p - tmp);
557 new->u.data.len = p - tmp;
563 * Does the requested format match a known schema-mapping? (this reflects
564 * the overlap of schema and formatting which is inherent in the MARC
566 * NOTE: This should look at the schema-specification in the compspec
569 for (map = node->u.root.absyn->maptabs; map; map = map->next)
570 if (map->target_absyn_ref == p->input_format)
573 if (!(node = data1_map_record(onode, map, mem)))
582 if (p->comp && (res = process_comp(node, p->comp)) > 0)
586 data1_free_tree(onode);
587 data1_free_tree(node);
591 else if (p->comp && !res)
594 switch (p->output_format = (p->input_format != VAL_NONE ?
595 p->input_format : VAL_SUTRS))
597 data1_marctab *marctab;
602 if (!(p->rec_buf = data1_nodetogr(node, selected, p->odr, &dummy)))
603 p->diagnostic = 2; /* this should be better specified */
608 if (!(p->rec_buf = data1_nodetoexplain(node, selected, p->odr)))
609 p->diagnostic = 2; /* this should be better specified */
614 if (!(p->rec_buf = data1_nodetosummary(node, selected, p->odr)))
620 if (!(p->rec_buf = data1_nodetobuf(node, selected,
628 if (!(p->rec_buf = data1_nodetosoif(node, selected,
636 for (marctab = node->u.root.absyn->marc; marctab;
637 marctab = marctab->next)
638 if (marctab->reference == p->input_format)
645 if (!(p->rec_buf = data1_nodetomarc(marctab, node, selected,
653 data1_free_tree(node);
655 data1_free_tree(onode);
660 static struct recType grs_type =
668 RecType recTypeGrs = &grs_type;