X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Fzrpn.c;h=8d5da192e68cf52847e9d80a766f3c71c6c0458c;hb=0ac0f444414651f31406b227b64a447fd324ac4a;hp=46d7afd461ee8a3ace7ee9915f924c634fef151d;hpb=e5652ee69c5a71f19ea16455b48d22a78fb5fcdd;p=idzebra-moved-to-github.git diff --git a/index/zrpn.c b/index/zrpn.c index 46d7afd..8d5da19 100644 --- a/index/zrpn.c +++ b/index/zrpn.c @@ -1,10 +1,176 @@ /* - * Copyright (C) 1995, Index Data I/S + * Copyright (C) 1994-1996, Index Data I/S * All rights reserved. * Sebastian Hammer, Adam Dickmeiss * * $Log: zrpn.c,v $ - * Revision 1.5 1995-09-06 10:33:04 adam + * Revision 1.55 1996-11-04 14:07:44 adam + * Moved truncation code to trunc.c. + * + * Revision 1.54 1996/10/29 14:09:52 adam + * Use of cisam system - enabled if setting isamc is 1. + * + * Revision 1.53 1996/06/26 09:21:43 adam + * Bug fix: local attribute set wasn't obeyed in scan. + * + * Revision 1.52 1996/06/17 14:26:20 adam + * Function gen_regular_rel changed to handle negative numbers. + * + * Revision 1.51 1996/06/11 10:54:15 quinn + * Relevance work + * + * Revision 1.50 1996/06/07 08:51:53 adam + * Bug fix: Character mapping was broken (introducued by last revision). + * + * Revision 1.49 1996/06/04 10:18:11 adam + * Search/scan uses character mapping module. + * + * Revision 1.48 1996/05/28 15:15:01 adam + * Bug fix: Didn't handle unknown database correctly. + * + * Revision 1.47 1996/05/15 18:36:28 adam + * Function trans_term transforms unsearchable characters to blanks. + * + * Revision 1.46 1996/05/15 11:57:56 adam + * Fixed bug introduced by set/field mapping in search operations. + * + * Revision 1.45 1996/05/14 11:34:00 adam + * Scan support in multiple registers/databases. + * + * Revision 1.44 1996/05/14 06:16:44 adam + * Compact use/set bytes used in search service. + * + * Revision 1.43 1996/05/09 09:54:43 adam + * Server supports maps from one logical attributes to a list of physical + * attributes. + * The extraction process doesn't make space consuming 'any' keys. + * + * Revision 1.42 1996/05/09 07:28:56 quinn + * Work towards phrases and multiple registers + * + * Revision 1.41 1996/03/20 09:36:43 adam + * Function dict_lookup_grep got extra parameter, init_pos, which marks + * from which position in pattern approximate pattern matching should occur. + * Approximate pattern matching is used in relevance=re-2. + * + * Revision 1.40 1996/02/02 13:44:44 adam + * The public dictionary functions simply use char instead of Dict_char + * to represent search strings. Dict_char is used internally only. + * + * Revision 1.39 1996/01/03 16:22:13 quinn + * operator->roperator + * + * Revision 1.38 1995/12/11 09:12:55 adam + * The rec_get function returns NULL if record doesn't exist - will + * happen in the server if the result set records have been deleted since + * the creation of the set (i.e. the search). + * The server saves a result temporarily if it is 'volatile', i.e. the + * set is register dependent. + * + * Revision 1.37 1995/12/06 15:05:28 adam + * More verbose in count_set. + * + * Revision 1.36 1995/12/06 12:41:27 adam + * New command 'stat' for the index program. + * Filenames can be read from stdin by specifying '-'. + * Bug fix/enhancement of the transformation from terms to regular + * expressons in the search engine. + * + * Revision 1.35 1995/11/27 09:29:00 adam + * Bug fixes regarding conversion to regular expressions. + * + * Revision 1.34 1995/11/16 17:00:56 adam + * Better logging of rpn query. + * + * Revision 1.33 1995/11/01 13:58:28 quinn + * Moving data1 to yaz/retrieval + * + * Revision 1.32 1995/10/27 14:00:11 adam + * Implemented detection of database availability. + * + * Revision 1.31 1995/10/17 18:02:10 adam + * New feature: databases. Implemented as prefix to words in dictionary. + * + * Revision 1.30 1995/10/16 09:32:38 adam + * More work on relational op. + * + * Revision 1.29 1995/10/13 16:01:49 adam + * Work on relations. + * + * Revision 1.28 1995/10/13 12:26:43 adam + * Optimization of truncation. + * + * Revision 1.27 1995/10/12 17:07:22 adam + * Truncation works. + * + * Revision 1.26 1995/10/12 12:40:54 adam + * Bug fixes in rpn_prox. + * + * Revision 1.25 1995/10/10 13:59:24 adam + * Function rset_open changed its wflag parameter to general flags. + * + * Revision 1.24 1995/10/09 16:18:37 adam + * Function dict_lookup_grep got extra client data parameter. + * + * Revision 1.23 1995/10/06 16:33:37 adam + * Use attribute mappings. + * + * Revision 1.22 1995/10/06 15:07:39 adam + * Structure 'local-number' handled. + * + * Revision 1.21 1995/10/06 13:52:06 adam + * Bug fixes. Handler may abort further scanning. + * + * Revision 1.20 1995/10/06 11:06:33 adam + * Scan entries include 'occurrences' now. + * + * Revision 1.19 1995/10/06 10:43:56 adam + * Scan added. 'occurrences' in scan entries not set yet. + * + * Revision 1.18 1995/10/04 16:57:20 adam + * Key input and merge sort in one pass. + * + * Revision 1.17 1995/10/04 12:55:17 adam + * Bug fix in ranked search. Use=Any keys inserted. + * + * Revision 1.16 1995/10/02 16:24:40 adam + * Use attribute actually used in search requests. + * + * Revision 1.15 1995/10/02 15:18:52 adam + * New member in recRetrieveCtrl: diagnostic. + * + * Revision 1.14 1995/09/28 12:10:32 adam + * Bug fixes. Field prefix used in queries. + * + * Revision 1.13 1995/09/18 14:17:50 adam + * Minor changes. + * + * Revision 1.12 1995/09/15 14:45:21 adam + * Retrieve control. + * Work on truncation. + * + * Revision 1.11 1995/09/14 11:53:27 adam + * First work on regular expressions/truncations. + * + * Revision 1.10 1995/09/11 15:23:26 adam + * More work on relevance search. + * + * Revision 1.9 1995/09/11 13:09:35 adam + * More work on relevance feedback. + * + * Revision 1.8 1995/09/08 14:52:27 adam + * Minor changes. Dictionary is lower case now. + * + * Revision 1.7 1995/09/07 13:58:36 adam + * New parameter: result-set file descriptor (RSFD) to support multiple + * positions within the same result-set. + * Boolean operators: and, or, not implemented. + * Result-set references. + * + * Revision 1.6 1995/09/06 16:11:18 adam + * Option: only one word key per file. + * + * Revision 1.5 1995/09/06 10:33:04 adam * More work on present. Some log messages removed. * * Revision 1.4 1995/09/05 15:28:40 adam @@ -25,124 +191,943 @@ #include #include #include +#include #include "zserver.h" +#include "attribute.h" -#include +#include #include #include +#include +#include + +typedef struct { + int type; + int major; + int minor; + Z_AttributesPlusTerm *zapt; +} AttrType; + +static int attr_find (AttrType *src, oid_value *attributeSetP) +{ + while (src->major < src->zapt->num_attributes) + { + Z_AttributeElement *element; + + element = src->zapt->attributeList[src->major]; + if (src->type == *element->attributeType) + { + switch (element->which) + { + case Z_AttributeValue_numeric: + ++(src->major); + if (element->attributeSet && attributeSetP) + { + oident *attrset; + + attrset = oid_getentbyoid (element->attributeSet); + *attributeSetP = attrset->value; + } + return *element->value.numeric; + break; + case Z_AttributeValue_complex: + if (src->minor >= element->value.complex->num_list || + element->value.complex->list[src->minor]->which != + Z_StringOrNumeric_numeric) + break; + ++(src->minor); + if (element->attributeSet && attributeSetP) + { + oident *attrset; + + attrset = oid_getentbyoid (element->attributeSet); + *attributeSetP = attrset->value; + } + return *element->value.complex->list[src->minor-1]->u.numeric; + default: + assert (0); + } + } + ++(src->major); + } + return -1; +} + +static void attr_init (AttrType *src, Z_AttributesPlusTerm *zapt, + int type) +{ + src->zapt = zapt; + src->type = type; + src->major = 0; + src->minor = 0; +} + +#define TERM_COUNT + +struct grep_info { +#ifdef TERM_COUNT + int *term_no; +#endif + ISAM_P *isam_p_buf; + int isam_p_size; + int isam_p_indx; +}; -static RSET rpn_search_APT (ZServerInfo *zi, Z_AttributesPlusTerm *zapt) +static void add_isam_p (const char *info, struct grep_info *p) +{ + if (p->isam_p_indx == p->isam_p_size) + { + ISAM_P *new_isam_p_buf; +#ifdef TERM_COUNT + int *new_term_no; +#endif + + p->isam_p_size = 2*p->isam_p_size + 100; + new_isam_p_buf = xmalloc (sizeof(*new_isam_p_buf) * + p->isam_p_size); + if (p->isam_p_buf) + { + memcpy (new_isam_p_buf, p->isam_p_buf, + p->isam_p_indx * sizeof(*p->isam_p_buf)); + xfree (p->isam_p_buf); + } + p->isam_p_buf = new_isam_p_buf; + +#ifdef TERM_COUNT + new_term_no = xmalloc (sizeof(*new_term_no) * + p->isam_p_size); + if (p->term_no) + { + memcpy (new_term_no, p->isam_p_buf, + p->isam_p_indx * sizeof(*p->term_no)); + xfree (p->term_no); + } + p->term_no = new_term_no; +#endif + } + assert (*info == sizeof(*p->isam_p_buf)); + memcpy (p->isam_p_buf + p->isam_p_indx, info+1, sizeof(*p->isam_p_buf)); + (p->isam_p_indx)++; +} + +static int grep_handle (char *name, const char *info, void *p) +{ + add_isam_p (info, p); + return 0; +} + +/* gen_regular_rel - generate regular expression from relation + * val: border value (inclusive) + * islt: 1 if <=; 0 if >=. + */ +static void gen_regular_rel (char *dst, int val, int islt) +{ + int dst_p; + int w, d, i; + int pos = 0; + char numstr[20]; + + logf (LOG_DEBUG, "gen_regular_rel. val=%d, islt=%d", val, islt); + if (val >= 0) + { + if (islt) + strcpy (dst, "(-[0-9]+|"); + else + strcpy (dst, "("); + } + else + { + if (!islt) + { + strcpy (dst, "([0-9]+|-"); + dst_p = strlen (dst); + islt = 1; + } + else + { + strcpy (dst, "(-"); + islt = 0; + } + val = -val; + } + dst_p = strlen (dst); + sprintf (numstr, "%d", val); + for (w = strlen(numstr); --w >= 0; pos++) + { + d = numstr[w]; + if (pos > 0) + { + if (islt) + { + if (d == '0') + continue; + d--; + } + else + { + if (d == '9') + continue; + d++; + } + } + + strcpy (dst + dst_p, numstr); + dst_p = strlen(dst) - pos - 1; + + if (islt) + { + if (d != '0') + { + dst[dst_p++] = '['; + dst[dst_p++] = '0'; + dst[dst_p++] = '-'; + dst[dst_p++] = d; + dst[dst_p++] = ']'; + } + else + dst[dst_p++] = d; + } + else + { + if (d != '9') + { + dst[dst_p++] = '['; + dst[dst_p++] = d; + dst[dst_p++] = '-'; + dst[dst_p++] = '9'; + dst[dst_p++] = ']'; + } + else + dst[dst_p++] = d; + } + for (i = 0; i="); + gen_regular_rel (term_dict + strlen(term_dict), term_value, 0); + break; + case 5: + if (term_value < 0) + term_value = 0; + logf (LOG_DEBUG, "Relation >"); + gen_regular_rel (term_dict + strlen(term_dict), term_value+1, 0); + break; + default: + return 0; + } + logf (LOG_DEBUG, "dict_lookup_grep: %s", term_dict); + r = dict_lookup_grep (zi->dict, term_dict, 0, grep_info, max_pos, + 0, grep_handle); + if (r) + logf (LOG_WARN, "dict_lookup_grep fail, rel=gt: %d", r); + logf (LOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return 1; +} + +static void verbatim_char (int ch, int *indx, char *dst) +{ + if (!isalnum (ch)) + dst[(*indx)++] = '\\'; + dst[(*indx)++] = ch; +} + +static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, + const char *term_sub, int regType, + oid_value attributeSet, struct grep_info *grep_info, + int num_bases, char **basenames) +{ + char term_dict[2*IT_MAX_WORD+2]; + int i, j, r, base_no; + AttrType truncation; + int truncation_value; + AttrType use; + int use_value; + oid_value curAttributeSet = attributeSet; + + attr_init (&use, zapt, 1); + use_value = attr_find (&use, &curAttributeSet); + logf (LOG_DEBUG, "use value %d", use_value); + attr_init (&truncation, zapt, 5); + truncation_value = attr_find (&truncation, NULL); + logf (LOG_DEBUG, "truncation value %d", truncation_value); + + if (use_value == -1) + use_value = 1016; + + for (base_no = 0; base_no < num_bases; base_no++) + { + attent *attp; + data1_local_attribute *local_attr; + int max_pos, prefix_len = 0; + + attp = att_getentbyatt (curAttributeSet, use_value); + if (!attp) + { + logf (LOG_DEBUG, "att_getentbyatt fail. set=%d use=%d", + curAttributeSet, use_value); + zi->errCode = 114; + return -1; + } + if (zebTargetInfo_curDatabase (zi->zti, basenames[base_no])) + { + zi->errCode = 109; /* Database unavailable */ + zi->errString = basenames[base_no]; + return -1; + } + for (local_attr = attp->local_attributes; local_attr; + local_attr = local_attr->next) + { + int ord; + + ord = zebTargetInfo_lookupSU (zi->zti, attp->attset_ordinal, + local_attr->local); + if (ord < 0) + continue; + if (prefix_len) + term_dict[prefix_len++] = '|'; + else + term_dict[prefix_len++] = '('; + term_dict[prefix_len++] = 1; + term_dict[prefix_len++] = ord; + } + if (!prefix_len) + { + zi->errCode = 114; + return -1; + } + term_dict[prefix_len++] = ')'; + term_dict[prefix_len++] = 1; + term_dict[prefix_len++] = regType; + term_dict[prefix_len] = '\0'; + if (!relational_term (zi, zapt, term_sub, term_dict, + attributeSet, grep_info, &max_pos)) + { + const char *cp; + + j = prefix_len; + switch (truncation_value) + { + case -1: /* not specified */ + case 100: /* do not truncate */ + term_dict[j++] = '('; + for (i = 0; term_sub[i]; i++) + verbatim_char (term_sub[i], &j, term_dict); + strcpy (term_dict+j, ")"); + r = dict_lookup_grep (zi->dict, term_dict, 0, grep_info, + &max_pos, 0, grep_handle); + if (r) + logf (LOG_WARN, "dict_lookup_grep err, trunc=none:%d", r); + break; + case 1: /* right truncation */ + term_dict[j++] = '('; + for (i = 0; term_sub[i]; i++) + verbatim_char (term_sub[i], &j, term_dict); + strcpy (term_dict+j, ".*)"); + dict_lookup_grep (zi->dict, term_dict, 0, grep_info, + &max_pos, 0, grep_handle); + break; + case 2: /* left truncation */ + case 3: /* left&right truncation */ + zi->errCode = 120; + return -1; + case 101: /* process # in term */ + term_dict[j++] = '('; + for (i=0; term_sub[i]; i++) + if (term_sub[i] == '#' && i > 2) + { + term_dict[j++] = '.'; + term_dict[j++] = '*'; + } + else + verbatim_char (term_sub[i], &j, term_dict); + strcpy (term_dict+j, ")"); + r = dict_lookup_grep (zi->dict, term_dict, 0, grep_info, + &max_pos, 0, grep_handle); + if (r) + logf (LOG_WARN, "dict_lookup_grep err, trunc=#: %d", + r); + break; + case 102: /* regular expression */ + sprintf (term_dict + j, "(%s)", term_sub); + r = dict_lookup_grep (zi->dict, term_dict, 0, grep_info, + &max_pos, 0, grep_handle); + if (r) + logf (LOG_WARN, "dict_lookup_grep err, trunc=regular: %d", + r); + break; + case 103: /* regular expression with error correction */ + cp = term_sub; + r = 0; + if (*cp == '*' && cp[1] && cp[2]) + { + r = atoi (cp+1); + cp += 2; + } + sprintf (term_dict + j, "(%s)", cp); + r = dict_lookup_grep (zi->dict, term_dict, r, grep_info, + &max_pos, j, grep_handle); + if (r) + logf (LOG_WARN, "dict_lookup_grep err, trunc=eregular: %d", + r); + break; + } + } + } + logf (LOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return 0; +} + +static void trans_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, + char *termz) { - char termz[256]; size_t sizez; - struct rset_isam_parms parms; - const char *info; Z_Term *term = zapt->term; - if (term->which != Z_Term_general) - return NULL; sizez = term->u.general->len; - if (sizez > 255) - sizez = 255; + if (sizez > IT_MAX_WORD-1) + sizez = IT_MAX_WORD-1; memcpy (termz, term->u.general->buf, sizez); termz[sizez] = '\0'; - logf (LOG_DEBUG, "dict_lookup: %s", termz); - if (!(info = dict_lookup (zi->wordDict, termz))) - return rset_create (rset_kind_null, NULL); - assert (*info == sizeof(parms.pos)); - memcpy (&parms.pos, info+1, sizeof(parms.pos)); - parms.is = zi->wordIsam; - logf (LOG_DEBUG, "rset_create isam"); - return rset_create (rset_kind_isam, &parms); -} - -static RSET rpn_search_and (ZServerInfo *zi, RSET r_l, RSET r_r) -{ - struct it_key k1, k2; - RSET r_dst; - int i1, i2; - rset_open (r_l, 0); - rset_open (r_r, 0); - r_dst = rset_create (rset_kind_temp, NULL); - rset_open (r_dst, 1); +} + +static void trans_scan_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, + char *termz) +{ + Z_Term *term = zapt->term; + char **map; + char *cp = (char*) term->u.general->buf; + const char *cp_end = cp + term->u.general->len; + const char *src; + int i = 0; + int prev_space = 0; + int len; - i1 = rset_read (r_l, &k1); - i2 = rset_read (r_r, &k2); - while (i1 && i2) + while ((len = (cp_end - cp)) > 0) { - if (k1.sysno > k2.sysno) - i2 = rset_read (r_r, &k2); - else if (k1.sysno < k2.sysno) - i1 = rset_read (r_l, &k1); - else if (!(i1 = key_compare_x (&k1, &k2))) + map = map_chrs_input (&cp, len); + if (**map == *CHR_SPACE) { - rset_write (r_dst, &k1); - i1 = rset_read (r_l, &k1); - i2 = rset_read (r_r, &k2); + if (prev_space) + continue; + prev_space = 1; + } + else + prev_space = 0; + for (src = *map; *src; src++) + termz[i++] = *src; + } + termz[i] = '\0'; +} + +static RSET rpn_search_APT_relevance (ZServerInfo *zi, + Z_AttributesPlusTerm *zapt, + oid_value attributeSet, + int num_bases, char **basenames) +{ + rset_relevance_parms parms; + char termz[IT_MAX_WORD+1]; + char term_sub[IT_MAX_WORD+1]; + struct grep_info grep_info; + char *p0 = termz; + RSET result; + int term_index = 0; + + parms.key_size = sizeof(struct it_key); + parms.max_rec = 100; + parms.cmp = key_compare; + parms.is = zi->isam; + parms.no_terms = 0; + + if (zapt->term->which != Z_Term_general) + { + zi->errCode = 124; + return NULL; + } + trans_term (zi, zapt, termz); + +#ifdef TERM_COUNT + grep_info.term_no = 0; +#endif + grep_info.isam_p_indx = 0; + grep_info.isam_p_size = 0; + grep_info.isam_p_buf = NULL; + while (1) + { + char **map; + char *p2, *p1; + + p1 = p0; + while (*(p0 = p1)) + { + map = map_chrs_input (&p1, strlen(p1)); + if (**map != *CHR_SPACE) + break; } - else if (i1 > 0) + if (!*p0) + break; + + p1 = p0; + while (*(p2 = p1)) { - rset_write (r_dst, &k2); - i2 = rset_read (r_r, &k2); + map = map_chrs_input (&p1, strlen(p1)); + if (**map == *CHR_SPACE) + break; } - else + if (p2 == p0) + break; + memcpy (term_sub, p0, p2-p0); + term_sub[p2-p0] = '\0'; + p0 = p2; + if (field_term (zi, zapt, term_sub, 'w', attributeSet, &grep_info, + num_bases, basenames)) + return NULL; +#ifdef TERM_COUNT + for (; term_index < grep_info.isam_p_indx; term_index++) + grep_info.term_no[term_index] = parms.no_terms; + parms.no_terms++; +#endif + } + parms.term_no = grep_info.term_no; + parms.isam_positions = grep_info.isam_p_buf; + parms.no_isam_positions = grep_info.isam_p_indx; + if (grep_info.isam_p_indx > 0) + result = rset_create (rset_kind_relevance, &parms); + else + result = rset_create (rset_kind_null, NULL); +#ifdef TERM_COUNT + xfree(grep_info.term_no); +#endif + xfree (grep_info.isam_p_buf); + return result; +} + +static RSET rpn_search_APT_cphrase (ZServerInfo *zi, + Z_AttributesPlusTerm *zapt, + oid_value attributeSet, + int num_bases, char **basenames) +{ + char termz[IT_MAX_WORD+1]; + struct grep_info grep_info; + RSET result; + + if (zapt->term->which != Z_Term_general) + { + zi->errCode = 124; + return NULL; + } + trans_term (zi, zapt, termz); + +#ifdef TERM_COUNT + grep_info.term_no = 0; +#endif + grep_info.isam_p_indx = 0; + grep_info.isam_p_size = 0; + grep_info.isam_p_buf = NULL; + + if (field_term (zi, zapt, termz, 'p', attributeSet, &grep_info, + num_bases, basenames)) + return NULL; + result = rset_trunc (zi, grep_info.isam_p_buf, grep_info.isam_p_indx); +#ifdef TERM_COUNT + xfree(grep_info.term_no); +#endif + xfree (grep_info.isam_p_buf); + return result; +} + +static RSET rpn_prox (RSET *rset, int rset_no) +{ + int i; + RSFD *rsfd; + int *more; + struct it_key **buf; + RSFD rsfd_result; + RSET result; + rset_temp_parms parms; + + rsfd = xmalloc (sizeof(*rsfd)*rset_no); + more = xmalloc (sizeof(*more)*rset_no); + buf = xmalloc (sizeof(*buf)*rset_no); + + for (i = 0; i= 0) + { + rset_close (rset[i], rsfd[i]); + xfree (buf[i]); + --i; + } + xfree (rsfd); + xfree (more); + xfree (buf); + return rset_create (rset_kind_null, NULL); } - } - rset_close (r_dst); - return r_dst; + } + parms.key_size = sizeof (struct it_key); + result = rset_create (rset_kind_temp, &parms); + rsfd_result = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); + + while (*more) + { + for (i = 1; i 1) + { + more[i-1] = rset_read (rset[i-1], rsfd[i-1], buf[i-1]); + break; + } + else if (cmp == 1) + { + if (buf[i-1]->seqno+1 != buf[i]->seqno) + { + more[i-1] = rset_read (rset[i-1], rsfd[i-1], buf[i-1]); + break; + } + } + else + { + more[i] = rset_read (rset[i], rsfd[i], buf[i]); + break; + } + } + if (i == rset_no) + { + rset_write (result, rsfd_result, buf[0]); + more[0] = rset_read (*rset, *rsfd, *buf); + } + } + + for (i = 0; iterm->which != Z_Term_general) + { + zi->errCode = 124; + return NULL; + } + trans_term (zi, zapt, termz); + +#ifdef TERM_COUNT + grep_info.term_no = 0; +#endif + grep_info.isam_p_size = 0; + grep_info.isam_p_buf = NULL; + + while (1) + { + char **map; + char *p2, *p1; + + p1 = p0; + while (*(p0 = p1)) + { + map = map_chrs_input (&p1, strlen(p1)); + if (**map != *CHR_SPACE) + break; + } + if (!*p0) + break; + + p1 = p0; + while (*(p2 = p1)) + { + map = map_chrs_input (&p1, strlen(p1)); + if (**map == *CHR_SPACE) + break; + } + if (p2 == p0) + break; + + memcpy (term_sub, p0, p2-p0); + term_sub[p2-p0] = '\0'; + p0 = p2; + + grep_info.isam_p_indx = 0; + if (field_term (zi, zapt, term_sub, 'w', attributeSet, &grep_info, + num_bases, basenames)) + return NULL; + rset[rset_no] = rset_trunc (zi, grep_info.isam_p_buf, + grep_info.isam_p_indx); + assert (rset[rset_no]); + if (++rset_no >= sizeof(rset)/sizeof(*rset)) + break; + } +#ifdef TERM_COUNT + xfree(grep_info.term_no); +#endif + xfree (grep_info.isam_p_buf); + if (rset_no == 0) + return rset_create (rset_kind_null, NULL); + else if (rset_no == 1) + return (rset[0]); + + result = rpn_prox (rset, rset_no); + for (i = 0; iterm->which != Z_Term_general) + { + zi->errCode = 124; + return NULL; + } + parms.key_size = sizeof (struct it_key); + result = rset_create (rset_kind_temp, &parms); + rsfd = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); + + trans_term (zi, zapt, termz); + + key.sysno = atoi (termz); + if (key.sysno <= 0) + key.sysno = 1; + rset_write (result, rsfd, &key); + rset_close (result, rsfd); + return result; } -static RSET rpn_search_not (ZServerInfo *zi, RSET r_l, RSET r_r) +static RSET rpn_search_APT (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, + oid_value attributeSet, + int num_bases, char **basenames) { - return r_l; + AttrType relation; + AttrType structure; + AttrType completeness; + int relation_value, structure_value, completeness_value; + + attr_init (&relation, zapt, 2); + attr_init (&structure, zapt, 4); + attr_init (&completeness, zapt, 6); + + relation_value = attr_find (&relation, NULL); + structure_value = attr_find (&structure, NULL); + completeness_value = attr_find (&completeness, NULL); + switch (structure_value) + { + case -1: + if (relation_value == 102) /* relevance relation */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + if (completeness_value == 2 || completeness_value == 3) + return rpn_search_APT_cphrase (zi, zapt, attributeSet, + num_bases, basenames); + return rpn_search_APT_phrase (zi, zapt, attributeSet, + num_bases, basenames); + case 1: /* phrase */ + if (relation_value == 102) /* relevance relation */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + if (completeness_value == 2 || completeness_value == 3) + return rpn_search_APT_cphrase (zi, zapt, attributeSet, + num_bases, basenames); + return rpn_search_APT_phrase (zi, zapt, attributeSet, + num_bases, basenames); + break; + case 2: /* word */ + if (relation_value == 102) /* relevance relation */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + if (completeness_value == 2 || completeness_value == 3) + return rpn_search_APT_cphrase (zi, zapt, attributeSet, + num_bases, basenames); + return rpn_search_APT_phrase (zi, zapt, attributeSet, + num_bases, basenames); + case 3: /* key */ + break; + case 4: /* year */ + break; + case 5: /* date - normalized */ + break; + case 6: /* word list */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + case 100: /* date - un-normalized */ + break; + case 101: /* name - normalized */ + break; + case 102: /* date - un-normalized */ + break; + case 103: /* structure */ + break; + case 104: /* urx */ + break; + case 105: /* free-form-text */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + case 106: /* document-text */ + return rpn_search_APT_relevance (zi, zapt, attributeSet, + num_bases, basenames); + case 107: /* local-number */ + return rpn_search_APT_local (zi, zapt, attributeSet); + case 108: /* string */ + return rpn_search_APT_phrase (zi, zapt, attributeSet, + num_bases, basenames); + case 109: /* numeric string */ + break; + } + zi->errCode = 118; + return NULL; } static RSET rpn_search_ref (ZServerInfo *zi, Z_ResultSetId *resultSetId) { - return NULL; + ZServerSet *s; + + if (!(s = resultSetGet (zi, resultSetId))) + return rset_create (rset_kind_null, NULL); + return s->rset; } -static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs) +static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs, + oid_value attributeSet, + int num_bases, char **basenames) { - RSET r; + RSET r = NULL; if (zs->which == Z_RPNStructure_complex) { - RSET r_l, r_r; + rset_bool_parms bool_parms; + int soft = 0; - r_l = rpn_search_structure (zi, zs->u.complex->s1); - r_r = rpn_search_structure (zi, zs->u.complex->s2); + bool_parms.rset_l = rpn_search_structure (zi, zs->u.complex->s1, + attributeSet, + num_bases, basenames); + if (bool_parms.rset_l == NULL) + return NULL; + if (rset_is_ranked(bool_parms.rset_l)) + soft = 1; + bool_parms.rset_r = rpn_search_structure (zi, zs->u.complex->s2, + attributeSet, + num_bases, basenames); + if (bool_parms.rset_r == NULL) + { + rset_delete (bool_parms.rset_l); + return NULL; + } + if (rset_is_ranked(bool_parms.rset_r)) + soft = 1; + bool_parms.key_size = sizeof(struct it_key); + bool_parms.cmp = key_compare; - switch (zs->u.complex->operator->which) + switch (zs->u.complex->roperator->which) { case Z_Operator_and: - rset_delete (r_r); + r = rset_create (soft ? rset_kind_sand:rset_kind_and, &bool_parms); break; case Z_Operator_or: - rset_delete (r_r); + r = rset_create (soft ? rset_kind_sor:rset_kind_or, &bool_parms); break; case Z_Operator_and_not: - rset_delete (r_r); + r = rset_create (soft ? rset_kind_snot:rset_kind_not, &bool_parms); break; default: assert (0); } - r = r_l; } else if (zs->which == Z_RPNStructure_simple) { if (zs->u.simple->which == Z_Operand_APT) { logf (LOG_DEBUG, "rpn_search_APT"); - r = rpn_search_APT (zi, zs->u.simple->u.attributesPlusTerm); + r = rpn_search_APT (zi, zs->u.simple->u.attributesPlusTerm, + attributeSet, num_bases, basenames); } else if (zs->u.simple->which == Z_Operand_resultSetId) { @@ -161,60 +1146,362 @@ static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs) return r; } -static RSET rpn_save_set (RSET r, int *count) +void count_set_save (RSET *r, int *count) { -#if 0 - RSET d; - rset_temp_parms parms; -#endif int psysno = 0; + int kno = 0; struct it_key key; + RSFD rfd, wfd; + RSET w; + rset_temp_parms parms; - logf (LOG_DEBUG, "rpn_save_set"); + logf (LOG_DEBUG, "count_set_save"); *count = 0; -#if 0 parms.key_size = sizeof(struct it_key); - d = rset_create (rset_kind_temp, &parms); - rset_open (d, 1); -#endif + w = rset_create (rset_kind_temp, &parms); + wfd = rset_open (w, RSETF_WRITE|RSETF_SORT_SYSNO); + rfd = rset_open (*r, RSETF_READ|RSETF_SORT_SYSNO); + while (rset_read (*r, rfd, &key)) + { + logf (LOG_DEBUG, "sysno=%-7d seqno=%d", key.sysno, key.seqno); + if (key.sysno != psysno) + { + rset_write (w, wfd, &key); + psysno = key.sysno; + (*count)++; + } + kno++; + } + rset_close (*r, rfd); + rset_delete (*r); + rset_close (w, wfd); + *r = w; + logf (LOG_DEBUG, "%d keys, %d distinct sysnos", kno, *count); +} - rset_open (r, 0); - while (rset_read (r, &key)) +static void count_set (RSET r, int *count) +{ + int psysno = 0; + int kno = 0; + struct it_key key; + RSFD rfd; + + logf (LOG_DEBUG, "count_set"); + *count = 0; + rfd = rset_open (r, RSETF_READ|RSETF_SORT_SYSNO); + while (rset_read (r, rfd, &key)) { if (key.sysno != psysno) { psysno = key.sysno; (*count)++; } -#if 0 - rset_write (d, &key); -#endif + kno++; } - rset_close (r); -#if 0 - rset_close (d); -#endif - logf (LOG_DEBUG, "%d distinct sysnos", *count); -#if 0 - return d; -#endif + rset_close (r, rfd); + logf (LOG_DEBUG, "%d keys, %d distinct sysnos", kno, *count); } int rpn_search (ZServerInfo *zi, Z_RPNQuery *rpn, int num_bases, char **basenames, const char *setname, int *hits) { - RSET rset, result_rset; + RSET rset; + oident *attrset; + oid_value attributeSet; - rset = rpn_search_structure (zi, rpn->RPNStructure); - if (!rset) - return 0; - result_rset = rpn_save_set (rset, hits); -#if 0 - rset_delete (result_rset); -#endif + dict_grep_cmap (zi->dict, map_chrs_input); + zlog_rpn (rpn); + zi->errCode = 0; + zi->errString = NULL; + + attrset = oid_getentbyoid (rpn->attributeSetId); + attributeSet = attrset->value; + rset = rpn_search_structure (zi, rpn->RPNStructure, attributeSet, + num_bases, basenames); + if (!rset) + return zi->errCode; + if (rset_is_volatile(rset)) + count_set_save(&rset,hits); + else + count_set (rset, hits); resultSetAdd (zi, setname, 1, rset); + if (zi->errCode) + logf (LOG_DEBUG, "search error: %d", zi->errCode); + return zi->errCode; +} + +struct scan_info_entry { + char *term; + ISAM_P isam_p; +}; + +struct scan_info { + struct scan_info_entry *list; + ODR odr; + int before, after; + char prefix[20]; +}; + +static int scan_handle (char *name, const char *info, int pos, void *client) +{ + int len_prefix, idx; + struct scan_info *scan_info = client; + + len_prefix = strlen(scan_info->prefix); + if (memcmp (name, scan_info->prefix, len_prefix)) + return 1; + if (pos > 0) + idx = scan_info->after - pos + scan_info->before; + else + idx = - pos - 1; + logf (LOG_DEBUG, "%-3d %s", idx, name+len_prefix); + scan_info->list[idx].term = odr_malloc (scan_info->odr, + strlen(name + len_prefix)+1); + strcpy (scan_info->list[idx].term, name + len_prefix); + assert (*info == sizeof(ISAM_P)); + memcpy (&scan_info->list[idx].isam_p, info+1, sizeof(ISAM_P)); return 0; } + +static void scan_term_untrans (ODR odr, char **dstp, const char *src) +{ + char *dst = odr_malloc (odr, strlen(src)*2+1); + *dstp = dst; + + while (*src) + { + const char *cp = map_chrs_output (&src); + while (*cp) + *dst++ = *cp++; + } + *dst = '\0'; +} + +int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, + oid_value attributeset, + int num_bases, char **basenames, + int *position, int *num_entries, struct scan_entry **list, + int *status) +{ + int i; + int pos = *position; + int num = *num_entries; + int before; + int after; + int base_no; + char termz[IT_MAX_WORD+20]; + AttrType use; + int use_value; + AttrType completeness; + int completeness_value; + struct scan_info *scan_info_array; + struct scan_entry *glist; + int ords[32], ord_no = 0; + int ptr[32]; + + logf (LOG_DEBUG, "scan, position = %d, num = %d", pos, num); + + if (attributeset == VAL_NONE) + attributeset = VAL_BIB1; + + attr_init (&use, zapt, 1); + use_value = attr_find (&use, &attributeset); + logf (LOG_DEBUG, "use value %d", use_value); + + attr_init (&completeness, zapt, 6); + completeness_value = attr_find (&completeness, NULL); + logf (LOG_DEBUG, "completeness value %d", completeness_value); + + if (use_value == -1) + use_value = 1016; + for (base_no = 0; base_no < num_bases && ord_no < 32; base_no++) + { + attent *attp; + data1_local_attribute *local_attr; + + attp = att_getentbyatt (attributeset, use_value); + if (!attp) + { + logf (LOG_DEBUG, "att_getentbyatt fail. set=%d use=%d", + attributeset, use_value); + return zi->errCode = 114; + } + if (zebTargetInfo_curDatabase (zi->zti, basenames[base_no])) + { + zi->errString = basenames[base_no]; + return zi->errCode = 109; /* Database unavailable */ + } + for (local_attr = attp->local_attributes; local_attr && ord_no < 32; + local_attr = local_attr->next) + { + int ord; + + ord = zebTargetInfo_lookupSU (zi->zti, attp->attset_ordinal, + local_attr->local); + if (ord > 0) + ords[ord_no++] = ord; + } + } + if (ord_no == 0) + return zi->errCode = 113; + before = pos-1; + after = 1+num-pos; + scan_info_array = odr_malloc (zi->odr, ord_no * sizeof(*scan_info_array)); + for (i = 0; i < ord_no; i++) + { + int j, prefix_len = 0; + int before_tmp = before, after_tmp = after; + struct scan_info *scan_info = scan_info_array + i; + + scan_info->before = before; + scan_info->after = after; + scan_info->odr = zi->odr; + + scan_info->list = odr_malloc (zi->odr, (before+after)* + sizeof(*scan_info->list)); + for (j = 0; jlist[j].term = NULL; + termz[prefix_len++] = ords[i]; + termz[prefix_len++] = + (completeness_value==2 || completeness_value==3) ? 'p': 'w'; + termz[prefix_len] = 0; + strcpy (scan_info->prefix, termz); + + trans_scan_term (zi, zapt, termz+prefix_len); + + dict_scan (zi->dict, termz, &before_tmp, &after_tmp, scan_info, + scan_handle); + } + glist = odr_malloc (zi->odr, (before+after)*sizeof(*glist)); + for (i = 0; i < ord_no; i++) + ptr[i] = before; + + *status = BEND_SCAN_SUCCESS; + for (i = 0; iodr, &glist[i+before].term, mterm); + rset = rset_trunc (zi, &scan_info_array[j0].list[ptr[j0]].isam_p, 1); + + ptr[j0]++; + for (j = j0+1; j 0)) + { + j0 = j; + mterm = tst; + } + } + if (j0 == -1) + break; + + scan_term_untrans (zi->odr, &glist[before-1-i].term, mterm); + + rset = rset_trunc + (zi, &scan_info_array[j0].list[before-1-ptr[j0]].isam_p, 1); + + ptr[j0]++; + + for (j = j0+1; jerrCode) + logf (LOG_DEBUG, "scan error: %d", zi->errCode); + return zi->errCode; +} +