1 /* $Id: d1_absyn.c,v 1.3 2002-12-02 16:55:14 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
32 #define D1_MAX_NESTING 128
37 struct data1_systag *next;
40 struct data1_absyn_cache_info
44 data1_absyn_cache next;
47 struct data1_attset_cache_info
51 data1_attset_cache next;
54 data1_absyn *data1_absyn_search (data1_handle dh, const char *name)
56 data1_absyn_cache p = *data1_absyn_cache_get (dh);
60 if (!strcmp (name, p->name))
67 void data1_absyn_trav (data1_handle dh, void *handle,
68 void (*fh)(data1_handle dh, void *h, data1_absyn *a))
70 data1_absyn_cache p = *data1_absyn_cache_get (dh);
74 (*fh)(dh, handle, p->absyn);
79 data1_absyn *data1_absyn_add (data1_handle dh, const char *name)
82 NMEM mem = data1_nmem_get (dh);
84 data1_absyn_cache p = (data1_absyn_cache)nmem_malloc (mem, sizeof(*p));
85 data1_absyn_cache *pp = data1_absyn_cache_get (dh);
87 sprintf(fname, "%s.abs", name);
88 p->absyn = data1_read_absyn (dh, fname, 0);
89 p->name = nmem_strdup (mem, name);
95 data1_absyn *data1_get_absyn (data1_handle dh, const char *name)
99 if (!(absyn = data1_absyn_search (dh, name)))
100 absyn = data1_absyn_add (dh, name);
104 data1_attset *data1_attset_search_name (data1_handle dh, const char *name)
106 data1_attset_cache p = *data1_attset_cache_get (dh);
110 if (!strcmp (name, p->name))
117 data1_attset *data1_attset_search_id (data1_handle dh, int id)
119 data1_attset_cache p = *data1_attset_cache_get (dh);
123 if (id == p->attset->reference)
130 data1_attset *data1_attset_add (data1_handle dh, const char *name)
132 char fname[512], aname[512];
133 NMEM mem = data1_nmem_get (dh);
134 data1_attset *attset;
136 strcpy (aname, name);
137 sprintf(fname, "%s.att", name);
138 attset = data1_read_attset (dh, fname);
142 attset = data1_read_attset (dh, name);
143 if (attset && (cp = strrchr (aname, '.')))
147 yaz_log (LOG_WARN|LOG_ERRNO, "Couldn't load attribute set %s", name);
150 data1_attset_cache p = (data1_attset_cache)
151 nmem_malloc (mem, sizeof(*p));
152 data1_attset_cache *pp = data1_attset_cache_get (dh);
154 attset->name = p->name = nmem_strdup (mem, aname);
162 data1_attset *data1_get_attset (data1_handle dh, const char *name)
164 data1_attset *attset;
166 if (!(attset = data1_attset_search_name (dh, name)))
167 attset = data1_attset_add (dh, name);
171 data1_esetname *data1_getesetbyname(data1_handle dh, data1_absyn *a,
176 for (r = a->esetnames; r; r = r->next)
177 if (!data1_matchstr(r->name, name))
182 data1_element *data1_getelementbytagname (data1_handle dh, data1_absyn *abs,
183 data1_element *parent,
188 /* It's now possible to have a data1 tree with no abstract syntax */
193 r = abs->main_elements;
195 r = parent->children;
197 for (; r; r = r->next)
201 for (n = r->tag->names; n; n = n->next)
202 if (!data1_matchstr(tagname, n->name))
208 data1_element *data1_getelementbyname (data1_handle dh, data1_absyn *absyn,
213 /* It's now possible to have a data1 tree with no abstract syntax */
216 for (r = absyn->main_elements; r; r = r->next)
217 if (!data1_matchstr(r->name, name))
223 void fix_element_ref (data1_handle dh, data1_absyn *absyn, data1_element *e)
225 /* It's now possible to have a data1 tree with no abstract syntax */
229 for (; e; e = e->next)
234 fix_element_ref (dh, absyn, e->children);
238 data1_sub_elements *sub_e = absyn->sub_elements;
239 while (sub_e && strcmp (e->sub_name, sub_e->name))
242 e->children = sub_e->elements;
244 yaz_log (LOG_WARN, "Unresolved reference to sub-elements %s",
251 static int parse_termlists (data1_handle dh, data1_termlist ***tpp,
252 char *p, const char *file, int lineno,
253 const char *element_name, data1_absyn *res)
255 data1_termlist **tp = *tpp;
258 char attname[512], structure[512];
262 if (!(r = sscanf(p, "%511[^:,]:%511[^,]", attname,
266 "%s:%d: Syntax error in termlistspec '%s'",
271 strcpy(attname, element_name);
272 *tp = (data1_termlist *)
273 nmem_malloc(data1_nmem_get(dh), sizeof(**tp));
275 if (!((*tp)->att = data1_getattbyname(dh, res->attset,
279 "%s:%d: Couldn't find att '%s' in attset",
280 file, lineno, attname);
283 if (r == 2 && (source = strchr(structure, ':')))
284 *source++ = '\0'; /* cut off structure .. */
286 source = "data"; /* ok: default is leaf data */
287 (*tp)->source = (char *)
288 nmem_strdup (data1_nmem_get (dh), source);
290 if (r < 2) /* is the structure qualified? */
291 (*tp)->structure = "w";
293 (*tp)->structure = (char *)
294 nmem_strdup (data1_nmem_get (dh), structure);
297 while ((p = strchr(p, ',')) && *(++p));
302 const char *data1_systag_lookup(data1_absyn *absyn, const char *tag,
303 const char *default_value)
305 struct data1_systag *p = absyn->systags;
306 for (; p; p = p->next)
307 if (!strcmp(p->name, tag))
309 return default_value;
312 data1_absyn *data1_read_absyn (data1_handle dh, const char *file,
315 data1_sub_elements *cur_elements = NULL;
316 data1_absyn *res = 0;
318 data1_element **ppl[D1_MAX_NESTING];
319 data1_esetname **esetpp;
320 data1_maptab **maptabp;
321 data1_marctab **marcp;
322 data1_termlist *all = 0;
323 data1_attset_child **attset_childp;
324 data1_tagset **tagset_childp;
325 struct data1_systag **systagsp;
329 char *argv[50], line[512];
331 if (!(f = data1_path_fopen(dh, file, "r")))
333 yaz_log(LOG_WARN|LOG_ERRNO, "Couldn't open %s", file);
338 res = (data1_absyn *) nmem_malloc(data1_nmem_get(dh), sizeof(*res));
340 res->reference = VAL_NONE;
343 res->enable_xpath_indexing = (f ? 0 : 1);
345 systagsp = &res->systags;
346 tagset_childp = &res->tagset;
348 res->attset = data1_empty_attset (dh);
349 attset_childp = &res->attset->children;
353 esetpp = &res->esetnames;
355 maptabp = &res->maptabs;
358 res->sub_elements = NULL;
359 res->main_elements = NULL;
361 while (f && (argc = readconf_line(f, &lineno, line, 512, argv, 50)))
364 if (!strcmp(cmd, "elm") || !strcmp(cmd, "element"))
366 data1_element *new_element;
368 char *p, *sub_p, *path, *name, *termlists;
374 yaz_log(LOG_WARN, "%s:%d: Bad # of args to elm", file, lineno);
383 cur_elements = (data1_sub_elements *)
384 nmem_malloc(data1_nmem_get(dh), sizeof(*cur_elements));
385 cur_elements->next = res->sub_elements;
386 cur_elements->elements = NULL;
387 cur_elements->name = "main";
388 res->sub_elements = cur_elements;
391 ppl[level] = &cur_elements->elements;
398 if ((e = strchr(p, '/')))
405 yaz_log(LOG_WARN, "%s:%d: Bad level increase", file, lineno);
410 new_element = *ppl[level-1] = (data1_element *)
411 nmem_malloc(data1_nmem_get(dh), sizeof(*new_element));
412 new_element->next = new_element->children = 0;
413 new_element->tag = 0;
414 new_element->termlists = 0;
415 new_element->sub_name = 0;
417 tp = &new_element->termlists;
418 ppl[level-1] = &new_element->next;
419 ppl[level] = &new_element->children;
421 /* consider subtree (if any) ... */
422 if ((sub_p = strchr (p, ':')) && sub_p[1])
425 new_element->sub_name =
426 nmem_strdup (data1_nmem_get(dh), sub_p);
428 /* well-defined tag */
429 if (sscanf(p, "(%d,%d)", &type, &value) == 2)
433 yaz_log(LOG_WARN, "%s:%d: No tagset loaded", file, lineno);
437 if (!(new_element->tag = data1_gettagbynum (dh, res->tagset,
440 yaz_log(LOG_WARN, "%s:%d: Couldn't find tag %s in tagset",
450 new_element->tag = (data1_tag *)
451 nmem_malloc(data1_nmem_get (dh),
452 sizeof(*new_element->tag));
453 nt->which = DATA1T_string;
454 nt->value.string = nmem_strdup(data1_nmem_get (dh), p);
455 nt->names = (data1_name *)
456 nmem_malloc(data1_nmem_get(dh),
457 sizeof(*new_element->tag->names));
458 nt->names->name = nt->value.string;
460 nt->kind = DATA1K_string;
466 yaz_log(LOG_WARN, "%s:%d: Bad element", file, lineno);
470 /* parse termList definitions */
474 assert (res->attset);
476 if (parse_termlists (dh, &tp, p, file, lineno, name, res))
481 *tp = all; /* append any ALL entries to the list */
483 new_element->name = nmem_strdup(data1_nmem_get (dh), name);
485 else if (!strcmp(cmd, "section"))
491 yaz_log(LOG_WARN, "%s:%d: Bad # of args to section",
497 cur_elements = (data1_sub_elements *)
498 nmem_malloc(data1_nmem_get(dh), sizeof(*cur_elements));
499 cur_elements->next = res->sub_elements;
500 cur_elements->elements = NULL;
501 cur_elements->name = nmem_strdup (data1_nmem_get(dh), name);
502 res->sub_elements = cur_elements;
505 ppl[level] = &cur_elements->elements;
507 else if (!strcmp(cmd, "xpath"))
511 yaz_log(LOG_WARN, "%s:%d: Bad # of args to 'xpath' directive",
515 if (!strcmp(argv[1], "enable"))
516 res->enable_xpath_indexing = 1;
517 else if (!strcmp (argv[1], "disable"))
518 res->enable_xpath_indexing = 0;
521 yaz_log(LOG_WARN, "%s:%d: Expecting disable/enable "
522 "after 'xpath' directive", file, lineno);
525 else if (!strcmp(cmd, "all"))
527 data1_termlist **tp = &all;
530 yaz_log(LOG_WARN, "%s:%d: Too many 'all' directives - ignored",
536 yaz_log(LOG_WARN, "%s:%d: Bad # of args to 'all' directive",
540 if (parse_termlists (dh, &tp, argv[1], file, lineno, 0, res))
546 else if (!strcmp(cmd, "name"))
550 yaz_log(LOG_WARN, "%s:%d: Bad # of args to name directive",
554 res->name = nmem_strdup(data1_nmem_get(dh), argv[1]);
556 else if (!strcmp(cmd, "reference"))
562 yaz_log(LOG_WARN, "%s:%d: Bad # of args to reference",
567 if ((res->reference = oid_getvalbyname(name)) == VAL_NONE)
569 yaz_log(LOG_WARN, "%s:%d: Unknown tagset ref '%s'",
574 else if (!strcmp(cmd, "attset"))
577 data1_attset *attset;
581 yaz_log(LOG_WARN, "%s:%d: Bad # of args to attset",
586 if (!(attset = data1_get_attset (dh, name)))
588 yaz_log(LOG_WARN, "%s:%d: Couldn't find attset %s",
592 *attset_childp = (data1_attset_child *)
593 nmem_malloc (data1_nmem_get(dh), sizeof(**attset_childp));
594 (*attset_childp)->child = attset;
595 (*attset_childp)->next = 0;
596 attset_childp = &(*attset_childp)->next;
598 else if (!strcmp(cmd, "tagset"))
604 yaz_log(LOG_WARN, "%s:%d: Bad # of args to tagset",
610 type = atoi(argv[2]);
611 *tagset_childp = data1_read_tagset (dh, name, type);
612 if (!(*tagset_childp))
614 yaz_log(LOG_WARN, "%s:%d: Couldn't load tagset %s",
618 tagset_childp = &(*tagset_childp)->next;
620 else if (!strcmp(cmd, "varset"))
626 yaz_log(LOG_WARN, "%s:%d: Bad # of args in varset",
631 if (!(res->varset = data1_read_varset (dh, name)))
633 yaz_log(LOG_WARN, "%s:%d: Couldn't load Varset %s",
638 else if (!strcmp(cmd, "esetname"))
644 yaz_log(LOG_WARN, "%s:%d: Bad # of args in esetname",
651 *esetpp = (data1_esetname *)
652 nmem_malloc(data1_nmem_get(dh), sizeof(**esetpp));
653 (*esetpp)->name = nmem_strdup(data1_nmem_get(dh), name);
657 else if (!((*esetpp)->spec = data1_read_espec1 (dh, fname)))
659 yaz_log(LOG_WARN, "%s:%d: Espec-1 read failed for %s",
660 file, lineno, fname);
663 esetpp = &(*esetpp)->next;
665 else if (!strcmp(cmd, "maptab"))
671 yaz_log(LOG_WARN, "%s:%d: Bad # of args for maptab",
676 if (!(*maptabp = data1_read_maptab (dh, name)))
678 yaz_log(LOG_WARN, "%s:%d: Couldn't load maptab %s",
682 maptabp = &(*maptabp)->next;
684 else if (!strcmp(cmd, "marc"))
690 yaz_log(LOG_WARN, "%s:%d: Bad # or args for marc",
695 if (!(*marcp = data1_read_marctab (dh, name)))
697 yaz_log(LOG_WARN, "%s:%d: Couldn't read marctab %s",
701 marcp = &(*marcp)->next;
703 else if (!strcmp(cmd, "encoding"))
707 yaz_log(LOG_WARN, "%s:%d: Bad # or args for encoding",
711 res->encoding = nmem_strdup (data1_nmem_get(dh), argv[1]);
713 else if (!strcmp(cmd, "systag"))
715 struct data1_systag *st;
718 yaz_log(LOG_WARN, "%s:%d: Bad # or args for systag",
722 *systagsp = nmem_malloc (data1_nmem_get(dh), sizeof(**systagsp));
724 (*systagsp)->name = nmem_strdup(data1_nmem_get(dh), argv[1]);
725 (*systagsp)->value = nmem_strdup(data1_nmem_get(dh), argv[2]);
726 systagsp = &(*systagsp)->next;
730 yaz_log(LOG_WARN, "%s:%d: Unknown directive '%s'", file,
738 for (cur_elements = res->sub_elements; cur_elements;
739 cur_elements = cur_elements->next)
741 if (!strcmp (cur_elements->name, "main"))
742 res->main_elements = cur_elements->elements;
743 fix_element_ref (dh, res, cur_elements->elements);
746 yaz_log (LOG_DEBUG, "%s: data1_read_absyn end", file);