X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=recctrl%2Frecgrs.c;h=1bae99de456153dd29fedd4b83d0ac2c933d3518;hb=b72718347ce9e412d57b1203441fe7e51746772c;hp=4f3ab503291a0f8b2cc28eaf8575a532663acbc4;hpb=b17cf6fd6cad7283033afe18fc346250ec1b2ad3;p=idzebra-moved-to-github.git diff --git a/recctrl/recgrs.c b/recctrl/recgrs.c index 4f3ab50..1bae99d 100644 --- a/recctrl/recgrs.c +++ b/recctrl/recgrs.c @@ -1,5 +1,5 @@ -/* $Id: recgrs.c,v 1.71 2002-12-16 20:27:18 adam Exp $ - Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002 +/* $Id: recgrs.c,v 1.82 2003-08-21 10:29:00 adam Exp $ + Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003 Index Data Aps This file is part of the Zebra server. @@ -62,7 +62,8 @@ static int read_grs_type (struct grs_handlers *h, strcpy (p->type, cp+1); for (gh = h->handlers; gh; gh = gh->next) { - if (!memcmp (type, gh->type->type, cp-type)) + if (!memcmp (type, gh->type->type, cp-type) && + gh->type->type[cp-type] == '\0') { if (!gh->initFlag) { @@ -99,6 +100,7 @@ static void *grs_init(RecType recType) grs_add_handler (h, recTypeGrs_tcl); #endif grs_add_handler (h, recTypeGrs_marc); + grs_add_handler (h, recTypeGrs_marcxml); #if HAVE_EXPAT_H grs_add_handler (h, recTypeGrs_xml); #endif @@ -123,24 +125,103 @@ static void grs_destroy(void *clientData) xfree (h); } +int d1_check_xpath_predicate(data1_node *n, struct xpath_predicate *p) +{ + int res = 1; + char *attname; + data1_xattr *attr; + + if (!p) { + return 1; + } else { + if (p->which == XPATH_PREDICATE_RELATION) { + if (p->u.relation.name[0]) { + if (*p->u.relation.name != '@') { + logf(LOG_WARN, + " Only attributes (@) are supported in xelm xpath predicates"); + logf(LOG_WARN, "predicate %s ignored", p->u.relation.name); + return (1); + } + attname = p->u.relation.name + 1; + res = 0; + /* looking for the attribute with a specified name */ + for (attr = n->u.tag.attributes; attr; attr = attr->next) { + logf(LOG_DEBUG," - attribute %s <-> %s", attname, attr->name ); + + if (!strcmp(attr->name, attname)) { + if (p->u.relation.op[0]) { + if (*p->u.relation.op != '=') { + logf(LOG_WARN, + "Only '=' relation is supported (%s)",p->u.relation.op); + logf(LOG_WARN, "predicate %s ignored", p->u.relation.name); + res = 1; break; + } else { + logf(LOG_DEBUG," - value %s <-> %s", + p->u.relation.value, attr->value ); + if (!strcmp(attr->value, p->u.relation.value)) { + res = 1; break; + } + } + } else { + /* attribute exists, no value specified */ + res = 1; break; + } + } + } + return res; + } else { + return 1; + } + } + else if (p->which == XPATH_PREDICATE_BOOLEAN) { + if (!strcmp(p->u.boolean.op,"and")) { + return d1_check_xpath_predicate(n, p->u.boolean.left) + && d1_check_xpath_predicate(n, p->u.boolean.right); + } + else if (!strcmp(p->u.boolean.op,"or")) { + return (d1_check_xpath_predicate(n, p->u.boolean.left) + || d1_check_xpath_predicate(n, p->u.boolean.right)); + } else { + logf(LOG_WARN, "Unknown boolean relation %s, ignored",p->u.boolean.op); + return 1; + } + } + } + return 0; +} + + /* *ostrich* - New function, looking for xpath "element" definitions in abs, by - tagpath, using a kind of ugly regxp search.The DFA was built while - parsing abs, so here we just go trough them and try to match - against the given tagpath. The first matching entry is returned. +New function, looking for xpath "element" definitions in abs, by +tagpath, using a kind of ugly regxp search.The DFA was built while +parsing abs, so here we just go trough them and try to match +against the given tagpath. The first matching entry is returned. - pop, 2002-12-13 - */ +pop, 2002-12-13 + +Added support for enhanced xelm. Now [] predicates are considered +as well, when selecting indexing rules... (why the hell it's called +termlist???) + +pop, 2003-01-17 + +*/ data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n) { data1_absyn *abs = n->root->u.root.absyn; data1_xpelement *xpe = abs->xp_elements; - char *pexpr = malloc(strlen(tagpath)+2); + data1_node *nn; +#ifdef ENHANCED_XELM + struct xpath_location_step *xp; + +#endif + char *pexpr = xmalloc(strlen(tagpath)+2); int ok = 0; sprintf (pexpr, "%s\n", tagpath); + logf(LOG_DEBUG,"Checking tagpath %s",tagpath); while (xpe) { struct DFA_state **dfaar = xpe->dfa->states; @@ -150,9 +231,11 @@ data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n) int i; unsigned char c; int start_line = 1; - + + logf(LOG_DEBUG," - xpath %s",xpe->xpath_expr); + c = *pexpr++; t = s->trans; i = s->tran_no; - if (c >= t->ch[0] && c <= t->ch[1]) { + if ((c >= t->ch[0] && c <= t->ch[1]) || (!t->ch[0])) { p = pexpr; do { if ((s = dfaar[t->to])->rule_no && @@ -166,13 +249,47 @@ data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n) } p++; } while (i >= 0); - } + } pexpr--; - if (ok) break; + if (ok) { +#ifdef ENHANCED_XELM + /* we have to check the perdicates up to the root node */ + xp = xpe->xpath; + + /* find the first tag up in the node structure */ + nn = n; while (nn && nn->which != DATA1N_tag) { + nn = nn->parent; + } + + /* go from inside out in the node structure, while going + backwards trough xpath location steps ... */ + for (i=xpe->xpath_len - 1; i>0; i--) { + + logf(LOG_DEBUG,"Checking step %d: %s on tag %s", + i,xp[i].part,nn->u.tag.tag); + + if (!d1_check_xpath_predicate(nn, xp[i].predicate)) { + logf(LOG_DEBUG," Predicates didn't match"); + ok = 0; + break; + } + + if (nn->which == DATA1N_tag) { + nn = nn->parent; + } + } +#endif + if (ok) { + break; + } + } xpe = xpe->next; } + xfree(pexpr); + if (ok) { + logf(LOG_DEBUG,"Got it"); return xpe->termlists; } else { return NULL; @@ -197,6 +314,34 @@ data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n) modified by pop, 2002-12-13 */ +/* add xpath index for an attribute */ +static void index_xpath_attr (char *tag_path, char *name, char *value, + char *structure, struct recExtractCtrl *p, + RecWord *wrd) +{ + wrd->attrSet = VAL_IDXPATH; + wrd->attrUse = 1; + wrd->reg_type = '0'; + wrd->string = tag_path; + wrd->length = strlen(tag_path); + (*p->tokenAdd)(wrd); + + if (value) { + wrd->attrUse = 1015; + wrd->reg_type = 'w'; + wrd->string = value; + wrd->length = strlen(value); + (*p->tokenAdd)(wrd); + } + + wrd->attrUse = 2; + wrd->reg_type = '0'; + wrd->string = tag_path; + wrd->length = strlen(tag_path); + (*p->tokenAdd)(wrd); +} + + static void index_xpath (data1_node *n, struct recExtractCtrl *p, int level, RecWord *wrd, int use) { @@ -204,6 +349,12 @@ static void index_xpath (data1_node *n, struct recExtractCtrl *p, char tag_path_full[1024]; size_t flen = 0; data1_node *nn; + int termlist_only = 1; + + if ((!n->root->u.root.absyn) || + (n->root->u.root.absyn->enable_xpath_indexing)) { + termlist_only = 0; + } switch (n->which) { @@ -212,16 +363,18 @@ static void index_xpath (data1_node *n, struct recExtractCtrl *p, wrd->length = n->u.data.len; if (p->flagShowRecords) { - printf("%*s data=", (level + 1) * 4, ""); + printf("%*s XData:\"", (level + 1) * 4, ""); for (i = 0; ilength && i < 8; i++) fputc (wrd->string[i], stdout); - printf("\n"); + printf("\"\n"); } else { data1_termlist *tl; int xpdone = 0; flen = 0; + // logf (LOG_LOG,"Index value, %s",wrd->string); + /* we have to fetch the whole path to the data tag */ for (nn = n; nn; nn = nn->parent) { if (nn->which == DATA1N_tag) { @@ -237,7 +390,7 @@ static void index_xpath (data1_node *n, struct recExtractCtrl *p, tag_path_full[flen] = 0; /* If we have a matching termlist... */ - if (tl = xpath_termlist_by_tagpath(tag_path_full, n)) { + if ((tl = xpath_termlist_by_tagpath(tag_path_full, n))) { for (; tl; tl = tl->next) { wrd->reg_type = *tl->structure; /* this is the ! case, so structure is for the xpath index */ @@ -255,14 +408,14 @@ static void index_xpath (data1_node *n, struct recExtractCtrl *p, } } /* xpath indexing is done, if there was no termlist given, - or no ! attribute... */ - if (!xpdone) { + or no ! in the termlist, and default indexing is enabled... */ + if ((!xpdone) && (!termlist_only)) { wrd->attrSet = VAL_IDXPATH; wrd->attrUse = use; wrd->reg_type = 'w'; (*p->tokenAdd)(wrd); } - } + } break; case DATA1N_tag: flen = 0; @@ -299,95 +452,139 @@ static void index_xpath (data1_node *n, struct recExtractCtrl *p, else { data1_xattr *xp; - (*p->tokenAdd)(wrd); /* index element pag (AKA tag path) */ - if (use == 1) + data1_termlist *tl; + int do_xpindex; + + tag_path_full[flen] = 0; + + /* Add tag start/end xpath index, only when there is a ! in the apropriate xelm + directive, or default xpath indexing is enabled */ + if (!(do_xpindex = 1 - termlist_only)) { + if ((tl = xpath_termlist_by_tagpath(tag_path_full, n))) { + for (; tl; tl = tl->next) { if (!tl->att) {do_xpindex = 1;} } + } + } + if (do_xpindex) { + (*p->tokenAdd)(wrd); /* index element pag (AKA tag path) */ + } + + if (use == 1) /* only for the starting tag... */ { - for (xp = n->u.tag.attributes; xp; xp = xp->next) - { + +#define MAX_ATTR_COUNT 50 + + data1_termlist *tll[MAX_ATTR_COUNT]; + + int i = 0; + + /* get termlists for attributes, and find out, if we have to do xpath indexing */ + for (xp = n->u.tag.attributes; xp; xp = xp->next) { + i++; + } + + i = 0; + for (xp = n->u.tag.attributes; xp; xp = xp->next) { char comb[512]; - /* attribute (no value) */ - wrd->reg_type = '0'; - wrd->attrUse = 3; - wrd->string = xp->name; - wrd->length = strlen(xp->name); + int do_xpindex = 1 - termlist_only; + data1_termlist *tl; + char attr_tag_path_full[1024]; + int int_len = flen; - wrd->seqno--; - (*p->tokenAdd)(wrd); - - if (xp->value && - strlen(xp->name) + strlen(xp->value) < sizeof(comb)-2) + /* this could be cached as well */ + sprintf (attr_tag_path_full, "@%s/%.*s", + xp->name, int_len, tag_path_full); + + tll[i] = xpath_termlist_by_tagpath(attr_tag_path_full,n); + + /* if there is a ! in the xelm termlist, or default indexing is on, + proceed with xpath idx */ + if ((tl = tll[i])) { - /* attribute value exact */ - strcpy (comb, xp->name); - strcat (comb, "="); - strcat (comb, xp->value); + for (; tl; tl = tl->next) + { + if (!tl->att) + do_xpindex = 1; + } + } + + if (do_xpindex) { - wrd->attrUse = 3; + /* attribute (no value) */ wrd->reg_type = '0'; - wrd->string = comb; - wrd->length = strlen(comb); - wrd->seqno--; + wrd->attrUse = 3; + wrd->string = xp->name; + wrd->length = strlen(xp->name); + wrd->seqno--; (*p->tokenAdd)(wrd); - } - } - for (xp = n->u.tag.attributes; xp; xp = xp->next) - { + + if (xp->value && + strlen(xp->name) + strlen(xp->value) < sizeof(comb)-2) { + + /* attribute value exact */ + strcpy (comb, xp->name); + strcat (comb, "="); + strcat (comb, xp->value); + + wrd->attrUse = 3; + wrd->reg_type = '0'; + wrd->string = comb; + wrd->length = strlen(comb); + wrd->seqno--; + + (*p->tokenAdd)(wrd); + } + } + i++; + } + + i = 0; + for (xp = n->u.tag.attributes; xp; xp = xp->next) { + data1_termlist *tl; char attr_tag_path_full[1024]; int int_len = flen; + int xpdone = 0; sprintf (attr_tag_path_full, "@%s/%.*s", xp->name, int_len, tag_path_full); - wrd->reg_type = '0'; - wrd->attrUse = 1; - wrd->string = attr_tag_path_full; - wrd->length = strlen(attr_tag_path_full); - (*p->tokenAdd)(wrd); - if (xp->value) - { - /* the same jokes, as with the data nodes ... */ - data1_termlist *tl; - int xpdone = 0; - - wrd->string = xp->value; - wrd->length = strlen(xp->value); - wrd->reg_type = 'w'; - - if (tl = xpath_termlist_by_tagpath(attr_tag_path_full, - n)) { - for (; tl; tl = tl->next) { - wrd->reg_type = *tl->structure; - if (!tl->att) { - wrd->attrSet = VAL_IDXPATH; - wrd->attrUse = 1015; - (*p->tokenAdd)(wrd); - xpdone = 1; - } else { - wrd->attrSet = (int) (tl->att->parent->reference); + if ((tl = tll[i])) + { + /* If there is a termlist given (=xelm directive) */ + for (; tl; tl = tl->next) + { + if (!tl->att) { + /* add xpath index for the attribute */ + index_xpath_attr (attr_tag_path_full, xp->name, + xp->value, tl->structure, + p, wrd); + xpdone = 1; + } else { + /* add attribute based index for the attribute */ + if (xp->value) { + wrd->attrSet = (int) + (tl->att->parent->reference); wrd->attrUse = tl->att->locals->local; + wrd->reg_type = *tl->structure; + wrd->string = xp->value; + wrd->length = strlen(xp->value); (*p->tokenAdd)(wrd); } } - - } - if (!xpdone) { - wrd->attrSet = VAL_IDXPATH; - wrd->attrUse = 1015; - wrd->reg_type = 'w'; - (*p->tokenAdd)(wrd); } } - - wrd->attrSet = VAL_IDXPATH; - wrd->reg_type = '0'; - wrd->attrUse = 2; - wrd->string = attr_tag_path_full; - wrd->length = strlen(attr_tag_path_full); - (*p->tokenAdd)(wrd); + /* if there was no termlist for the given path, + or the termlist didn't have a ! element, index + the attribute as "w" */ + if ((!xpdone) && (!termlist_only)) + { + index_xpath_attr (attr_tag_path_full, xp->name, + xp->value, "w", p, wrd); + } + i++; } } - } + } } } @@ -451,11 +648,11 @@ static void index_termlist (data1_node *par, data1_node *n, tlist->att->parent->name, tlist->att->name, tlist->att->value, tlist->source); - printf (" data=\""); - for (i = 0; ilength && i < 8; i++) + printf (" XData:\""); + for (i = 0; ilength && i < 40; i++) fputc (wrd->string[i], stdout); fputc ('"', stdout); - if (wrd->length > 8) + if (wrd->length > 40) printf (" ..."); fputc ('\n', stdout); } @@ -516,13 +713,9 @@ static int dumpkeys(data1_node *n, struct recExtractCtrl *p, int level, { index_termlist (n, n, p, level, wrd); /* index start tag */ - assert (n->root->u.root.absyn); - - if (!n->root->u.root.absyn) - index_xpath (n, p, level, wrd, 1); - else if (n->root->u.root.absyn->enable_xpath_indexing) - index_xpath (n, p, level, wrd, 1); - } + if (n->root->u.root.absyn) + index_xpath (n, p, level, wrd, 1); + } if (n->child) if (dumpkeys(n->child, p, level + 1, wrd) < 0) @@ -538,8 +731,8 @@ static int dumpkeys(data1_node *n, struct recExtractCtrl *p, int level, printf("%*s", level * 4, ""); printf("Data: "); if (n->u.data.len > 256) - printf("'%.240s ... %.6s'\n", n->u.data.data, - n->u.data.data + n->u.data.len-6); + printf("'%.170s ... %.70s'\n", n->u.data.data, + n->u.data.data + n->u.data.len-70); else if (n->u.data.len > 0) printf("'%.*s'\n", n->u.data.len, n->u.data.data); else @@ -548,19 +741,14 @@ static int dumpkeys(data1_node *n, struct recExtractCtrl *p, int level, if (par) index_termlist (par, n, p, level, wrd); - if (!n->root->u.root.absyn) - index_xpath (n, p, level, wrd, 1016); - else if (n->root->u.root.absyn->enable_xpath_indexing) - index_xpath (n, p, level, wrd, 1016); + + index_xpath (n, p, level, wrd, 1016); } if (n->which == DATA1N_tag) { /* index end tag */ - if (!n->root->u.root.absyn) - index_xpath (n, p, level, wrd, 2); - else if (n->root->u.root.absyn->enable_xpath_indexing) - index_xpath (n, p, level, wrd, 2); + index_xpath (n, p, level, wrd, 2); } if (p->flagShowRecords && n->which == DATA1N_root) @@ -625,6 +813,7 @@ static int grs_extract_sub(struct grs_handlers *h, struct recExtractCtrl *p, if ((oid_ent_to_oid (&oe, oidtmp))) (*p->schemaAdd)(p, oidtmp); } + data1_concat_text(p->dh, mem, n); /* ensure our data1 tree is UTF-8 */ data1_iconv (p->dh, mem, n, "UTF-8", data1_get_encoding(p->dh, n)); @@ -814,6 +1003,8 @@ static int grs_retrieve(void *clientData, struct recRetrieveCtrl *p) nmem_destroy (mem); return 0; } + data1_concat_text(p->dh, mem, node); + /* ensure our data1 tree is UTF-8 */ data1_iconv (p->dh, mem, node, "UTF-8", data1_get_encoding(p->dh, node)); @@ -859,14 +1050,25 @@ static int grs_retrieve(void *clientData, struct recRetrieveCtrl *p) #if 0 data1_pr_tree (p->dh, node, stdout); #endif +#if YAZ_VERSIONL >= 0x010903L if (p->comp && p->comp->which == Z_RecordComp_complex && p->comp->u.complex->generic && - p->comp->u.complex->generic->schema) + p->comp->u.complex->generic->which == Z_Schema_oid && + p->comp->u.complex->generic->schema.oid) + { + oident *oe = oid_getentbyoid (p->comp->u.complex->generic->schema.oid); + if (oe) + requested_schema = oe->value; + } +#else + if (p->comp && p->comp->which == Z_RecordComp_complex && + p->comp->u.complex->generic && p->comp->u.complex->generic->schema) { oident *oe = oid_getentbyoid (p->comp->u.complex->generic->schema); if (oe) requested_schema = oe->value; } +#endif /* If schema has been specified, map if possible, then check that * we got the right one