X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Fzrpn.c;h=fd48152666fe68608dfcdda2d08da2bba9860303;hb=a6908b6d93de84a850a3e558a2e4c17f02c3d651;hp=7ef2f446c5f5debb8795db47c4b0f4eaafd81239;hpb=80eb0a73f541530f383715296203036b3adbacc2;p=idzebra-moved-to-github.git diff --git a/index/zrpn.c b/index/zrpn.c index 7ef2f44..fd48152 100644 --- a/index/zrpn.c +++ b/index/zrpn.c @@ -1,10 +1,61 @@ /* - * Copyright (C) 1994-1996, Index Data I/S + * Copyright (C) 1994-1997, Index Data I/S * All rights reserved. * Sebastian Hammer, Adam Dickmeiss * * $Log: zrpn.c,v $ - * Revision 1.51 1996-06-11 10:54:15 quinn + * Revision 1.66 1997-09-25 14:58:03 adam + * Windows NT port. + * + * Revision 1.65 1997/09/22 12:39:06 adam + * Added get_pos method for the ranked result sets. + * + * Revision 1.64 1997/09/18 08:59:20 adam + * Extra generic handle for the character mapping routines. + * + * Revision 1.63 1997/09/17 12:19:18 adam + * Zebra version corresponds to YAZ version 1.4. + * Changed Zebra server so that it doesn't depend on global common_resource. + * + * Revision 1.62 1997/09/05 15:30:09 adam + * Changed prototype for chr_map_input - added const. + * Added support for C++, headers uses extern "C" for public definitions. + * + * Revision 1.61 1997/02/10 10:21:14 adam + * Bug fix: in search terms character (^) wasn't observed. + * + * Revision 1.60 1997/01/31 11:10:34 adam + * Bug fix: Leading and trailing white space weren't removed in scan tokens. + * + * Revision 1.59 1997/01/17 11:31:46 adam + * Bug fix: complete phrase search didn't work. + * + * Revision 1.58 1996/12/23 15:30:45 adam + * Work on truncation. + * Bug fix: result sets weren't deleted after server shut down. + * + * Revision 1.57 1996/11/11 13:38:02 adam + * Added proximity support in search. + * + * Revision 1.56 1996/11/08 11:10:32 adam + * Buffers used during file match got bigger. + * Compressed ISAM support everywhere. + * Bug fixes regarding masking characters in queries. + * Redesigned Regexp-2 queries. + * + * 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 @@ -178,14 +229,16 @@ */ #include #include +#ifdef WINDOWS +#include +#else #include +#endif #include #include "zserver.h" -#include "attribute.h" #include -#include #include #include #include @@ -252,248 +305,6 @@ static void attr_init (AttrType *src, Z_AttributesPlusTerm *zapt, src->minor = 0; } -struct trunc_info { - int *ptr; - int *indx; - char **heap; - int heapnum; - int (*cmp)(const void *p1, const void *p2); - int keysize; - char *swapbuf; - char *tmpbuf; - char *buf; -}; - -static void heap_swap (struct trunc_info *ti, int i1, int i2) -{ - int swap; - - swap = ti->ptr[i1]; - ti->ptr[i1] = ti->ptr[i2]; - ti->ptr[i2] = swap; -} - -static void heap_delete (struct trunc_info *ti) -{ - int cur = 1, child = 2; - - heap_swap (ti, 1, ti->heapnum--); - while (child <= ti->heapnum) { - if (child < ti->heapnum && - (*ti->cmp)(ti->heap[ti->ptr[child]], - ti->heap[ti->ptr[1+child]]) > 0) - child++; - if ((*ti->cmp)(ti->heap[ti->ptr[cur]], - ti->heap[ti->ptr[child]]) > 0) - { - heap_swap (ti, cur, child); - cur = child; - child = 2*cur; - } - else - break; - } -} - -static void heap_insert (struct trunc_info *ti, const char *buf, int indx) -{ - int cur, parent; - - cur = ++(ti->heapnum); - memcpy (ti->heap[ti->ptr[cur]], buf, ti->keysize); - ti->indx[ti->ptr[cur]] = indx; - parent = cur/2; - while (parent && (*ti->cmp)(ti->heap[ti->ptr[parent]], - ti->heap[ti->ptr[cur]]) > 0) - { - heap_swap (ti, cur, parent); - cur = parent; - parent = cur/2; - } -} - -static -struct trunc_info *heap_init (int size, int key_size, - int (*cmp)(const void *p1, const void *p2)) -{ - struct trunc_info *ti = xmalloc (sizeof(*ti)); - int i; - - ++size; - ti->heapnum = 0; - ti->keysize = key_size; - ti->cmp = cmp; - ti->indx = xmalloc (size * sizeof(*ti->indx)); - ti->heap = xmalloc (size * sizeof(*ti->heap)); - ti->ptr = xmalloc (size * sizeof(*ti->ptr)); - ti->swapbuf = xmalloc (ti->keysize); - ti->tmpbuf = xmalloc (ti->keysize); - ti->buf = xmalloc (size * ti->keysize); - for (i = size; --i >= 0; ) - { - ti->ptr[i] = i; - ti->heap[i] = ti->buf + ti->keysize * i; - } - return ti; -} - -static void heap_close (struct trunc_info *ti) -{ - xfree (ti->ptr); - xfree (ti->indx); - xfree (ti->heap); - xfree (ti->swapbuf); - xfree (ti->tmpbuf); - xfree (ti); -} - -static RSET rset_trunc_r (ISAM isam, ISAM_P *isam_p, int from, int to, - int merge_chunk) -{ - RSET result; - RSFD result_rsfd; - rset_temp_parms parms; - - parms.key_size = sizeof(struct it_key); - result = rset_create (rset_kind_temp, &parms); - result_rsfd = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); - - if (to - from > merge_chunk) - { - RSFD *rsfd; - RSET *rset; - int i, i_add = (to-from)/merge_chunk + 1; - struct trunc_info *ti; - int rscur = 0; - int rsmax = (to-from)/i_add + 1; - - rset = xmalloc (sizeof(*rset) * rsmax); - rsfd = xmalloc (sizeof(*rsfd) * rsmax); - - for (i = from; i < to; i += i_add) - { - if (i_add <= to - i) - rset[rscur] = rset_trunc_r (isam, isam_p, i, i+i_add, - merge_chunk); - else - rset[rscur] = rset_trunc_r (isam, isam_p, i, to, - merge_chunk); - rscur++; - } - ti = heap_init (rscur, sizeof(struct it_key), key_compare); - for (i = rscur; --i >= 0; ) - { - rsfd[i] = rset_open (rset[i], RSETF_READ|RSETF_SORT_SYSNO); - if (rset_read (rset[i], rsfd[i], ti->tmpbuf)) - heap_insert (ti, ti->tmpbuf, i); - else - { - rset_close (rset[i], rsfd[i]); - rset_delete (rset[i]); - } - } - while (ti->heapnum) - { - int n = ti->indx[ti->ptr[1]]; - - rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]); - - while (1) - { - if (!rset_read (rset[n], rsfd[n], ti->tmpbuf)) - { - heap_delete (ti); - rset_close (rset[n], rsfd[n]); - rset_delete (rset[n]); - break; - } - if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1) - { - heap_delete (ti); - heap_insert (ti, ti->tmpbuf, n); - break; - } - } - } - xfree (rset); - xfree (rsfd); - heap_close (ti); - } - else - { - ISPT *ispt; - int i; - struct trunc_info *ti; - - ispt = xmalloc (sizeof(*ispt) * (to-from)); - - ti = heap_init (to-from, sizeof(struct it_key), - key_compare); - for (i = to-from; --i >= 0; ) - { - ispt[i] = is_position (isam, isam_p[from+i]); - if (is_readkey (ispt[i], ti->tmpbuf)) - heap_insert (ti, ti->tmpbuf, i); - else - is_pt_free (ispt[i]); - } - while (ti->heapnum) - { - int n = ti->indx[ti->ptr[1]]; - - rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]); -#if 0 -/* section that preserve all keys */ - heap_delete (ti); - if (is_readkey (ispt[n], ti->tmpbuf)) - heap_insert (ti, ti->tmpbuf, n); - else - is_pt_free (ispt[n]); -#else -/* section that preserve all keys with unique sysnos */ - while (1) - { - if (!is_readkey (ispt[n], ti->tmpbuf)) - { - heap_delete (ti); - is_pt_free (ispt[n]); - break; - } - if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1) - { - heap_delete (ti); - heap_insert (ti, ti->tmpbuf, n); - break; - } - } -#endif - } - heap_close (ti); - xfree (ispt); - } - rset_close (result, result_rsfd); - return result; -} - -static int isam_trunc_cmp (const void *p1, const void *p2) -{ - ISAM_P i1 = *(ISAM_P*) p1; - ISAM_P i2 = *(ISAM_P*) p2; - int d; - - d = is_type (i1) - is_type (i2); - if (d) - return d; - return is_block (i1) - is_block (i2); -} - -static RSET rset_trunc (ISAM isam, ISAM_P *isam_p, int no) -{ - - qsort (isam_p, no, sizeof(*isam_p), isam_trunc_cmp); - return rset_trunc_r (isam, isam_p, 0, no, 100); -} - #define TERM_COUNT struct grep_info { @@ -544,19 +355,176 @@ static void add_isam_p (const char *info, struct grep_info *p) static int grep_handle (char *name, const char *info, void *p) { - logf (LOG_DEBUG, "dict name: %s", name); add_isam_p (info, p); return 0; } +static int term_pre (const char **src, const char *ct1, const char *ct2) +{ + const char *s1, *s0 = *src; + const char **map; + + /* skip white space */ + while (*s0) + { + if (ct1 && strchr (ct1, *s0)) + break; + if (ct2 && strchr (ct2, *s0)) + break; + s1 = s0; + map = map_chrs_input (0, &s1, strlen(s1)); + if (**map != *CHR_SPACE) + break; + s0 = s1; + } + *src = s0; + return *s0; +} + +static int term_100 (const char **src, char *dst, int space_split) +{ + const char *s0, *s1; + const char **map; + int i = 0; + + if (!term_pre (src, NULL, NULL)) + return 0; + s0 = *src; + while (*s0) + { + s1 = s0; + map = map_chrs_input (0, &s0, strlen(s0)); + if (space_split && **map == *CHR_SPACE) + break; + while (s1 < s0) + { + if (!isalnum (*s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + dst[i] = '\0'; + *src = s0; + return i; +} + +static int term_101 (const char **src, char *dst, int space_split) +{ + const char *s0, *s1; + const char **map; + int i = 0; + + if (!term_pre (src, "#", "#")) + return 0; + s0 = *src; + while (*s0) + { + if (*s0 == '#') + { + dst[i++] = '.'; + dst[i++] = '*'; + s0++; + } + else + { + s1 = s0; + map = map_chrs_input (0, &s0, strlen(s0)); + if (space_split && **map == *CHR_SPACE) + break; + while (s1 < s0) + { + if (!isalnum (*s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + } + dst[i] = '\0'; + *src = s0; + return i; +} + + +static int term_103 (const char **src, char *dst, int *errors, int space_split) +{ + int i = 0; + const char *s0, *s1; + const char **map; + + if (!term_pre (src, "^\\()[].*+?|", "(")) + return 0; + s0 = *src; + if (errors && *s0 == '+' && s0[1] && s0[2] == '+' && s0[3] && + isdigit (s0[1])) + { + *errors = s0[1] - '0'; + s0 += 3; + if (*errors > 3) + *errors = 3; + } + while (*s0) + { + if (strchr ("^\\()[].*+?|-", *s0)) + dst[i++] = *s0++; + else + { + s1 = s0; + map = map_chrs_input (0, &s0, strlen(s0)); + if (**map == *CHR_SPACE) + break; + while (s1 < s0) + { + if (!isalnum (*s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + } + dst[i] = '\0'; + *src = s0; + return i; +} + +static int term_102 (const char **src, char *dst, int space_split) +{ + return term_103 (src, dst, NULL, space_split); +} + +/* 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 = 1; + int dst_p; int w, d, i; int pos = 0; char numstr[20]; - *dst = '('; + 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++) { @@ -632,7 +600,7 @@ static void gen_regular_rel (char *dst, int val, int islt) } static int relational_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, - const char *term_sub, + const char **term_sub, char *term_dict, oid_value attributeSet, struct grep_info *grep_info, @@ -645,29 +613,40 @@ static int relational_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, attr_init (&relation, zapt, 2); relation_value = attr_find (&relation, NULL); - term_value = atoi (term_sub); switch (relation_value) { case 1: + if (!term_100 (term_sub, term_dict, 1)) + return 0; + term_value = atoi (term_dict); if (term_value <= 0) return 1; logf (LOG_DEBUG, "Relation <"); gen_regular_rel (term_dict + strlen(term_dict), term_value-1, 1); break; case 2: + if (!term_100 (term_sub, term_dict, 1)) + return 0; + term_value = atoi (term_dict); if (term_value < 0) return 1; logf (LOG_DEBUG, "Relation <="); gen_regular_rel (term_dict + strlen(term_dict), term_value, 1); break; case 4: + if (!term_100 (term_sub, term_dict, 1)) + return 0; + term_value = atoi (term_dict); if (term_value < 0) term_value = 0; logf (LOG_DEBUG, "Relation >="); gen_regular_rel (term_dict + strlen(term_dict), term_value, 0); break; case 5: + if (!term_100 (term_sub, term_dict, 1)) + return 0; + term_value = atoi (term_dict); if (term_value < 0) term_value = 0; logf (LOG_DEBUG, "Relation >"); @@ -677,7 +656,7 @@ static int relational_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, return 0; } logf (LOG_DEBUG, "dict_lookup_grep: %s", term_dict); - r = dict_lookup_grep (zi->wordDict, term_dict, 0, grep_info, max_pos, + 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); @@ -685,29 +664,23 @@ static int relational_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, 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, + const char **term_sub, int regType, oid_value attributeSet, struct grep_info *grep_info, - int num_bases, char **basenames) + int num_bases, char **basenames, int space_split) { char term_dict[2*IT_MAX_WORD+2]; - int i, j, r, base_no; + int j, r, base_no; AttrType truncation; int truncation_value; AttrType use; int use_value; oid_value curAttributeSet = attributeSet; + const char *termp; attr_init (&use, zapt, 1); use_value = attr_find (&use, &curAttributeSet); - logf (LOG_DEBUG, "use value %d", use_value); + logf (LOG_DEBUG, "field_term, use value %d", use_value); attr_init (&truncation, zapt, 5); truncation_value = attr_find (&truncation, NULL); logf (LOG_DEBUG, "truncation value %d", truncation_value); @@ -717,12 +690,12 @@ static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, for (base_no = 0; base_no < num_bases; base_no++) { - attent *attp; + attent attp; data1_local_attribute *local_attr; int max_pos, prefix_len = 0; - attp = att_getentbyatt (curAttributeSet, use_value); - if (!attp) + termp = *term_sub; + if (!att_getentbyatt (zi, &attp, curAttributeSet, use_value)) { logf (LOG_DEBUG, "att_getentbyatt fail. set=%d use=%d", curAttributeSet, use_value); @@ -735,12 +708,12 @@ static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, zi->errString = basenames[base_no]; return -1; } - for (local_attr = attp->local_attributes; local_attr; + for (local_attr = attp.local_attributes; local_attr; local_attr = local_attr->next) { int ord; - ord = zebTargetInfo_lookupSU (zi->zti, attp->attset_ordinal, + ord = zebTargetInfo_lookupSU (zi->zti, attp.attset_ordinal, local_attr->local); if (ord < 0) continue; @@ -760,31 +733,29 @@ static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, term_dict[prefix_len++] = 1; term_dict[prefix_len++] = regType; term_dict[prefix_len] = '\0'; - if (!relational_term (zi, zapt, term_sub, term_dict, + if (!relational_term (zi, zapt, &termp, 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->wordDict, term_dict, 0, grep_info, + term_dict[j++] = '('; + if (!term_100 (&termp, term_dict + j, space_split)) + return 0; + strcat (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 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->wordDict, term_dict, 0, grep_info, + if (!term_100 (&termp, term_dict + j, space_split)) + return 0; + strcat (term_dict, ".*)"); + dict_lookup_grep (zi->dict, term_dict, 0, grep_info, &max_pos, 0, grep_handle); break; case 2: /* left truncation */ @@ -793,40 +764,35 @@ static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, 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->wordDict, term_dict, 0, grep_info, + if (!term_101 (&termp, term_dict + j, space_split)) + return 0; + strcat (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 err, trunc=#: %d", - 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->wordDict, term_dict, 0, grep_info, + case 102: /* Regexp-1 */ + term_dict[j++] = '('; + if (!term_102 (&termp, term_dict + j, space_split)) + return 0; + strcat (term_dict, ")"); + logf (LOG_DEBUG, "Regexp-1 tolerance=%d", r); + 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->wordDict, term_dict, r, grep_info, - &max_pos, j, grep_handle); + case 103: /* Regexp-1 */ + r = 1; + term_dict[j++] = '('; + if (!term_103 (&termp, term_dict + j, &r, space_split)) + return 0; + strcat (term_dict, ")"); + logf (LOG_DEBUG, "Regexp-2 tolerance=%d", r); + r = dict_lookup_grep (zi->dict, term_dict, r, grep_info, + &max_pos, 2, grep_handle); if (r) logf (LOG_WARN, "dict_lookup_grep err, trunc=eregular: %d", r); @@ -834,8 +800,9 @@ static int field_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, } } } + *term_sub = termp; logf (LOG_DEBUG, "%d positions", grep_info->isam_p_indx); - return 0; + return 1; } static void trans_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, @@ -855,27 +822,28 @@ static void trans_scan_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, char *termz) { Z_Term *term = zapt->term; - char **map; + const char **map; const char *cp = (const char *) term->u.general->buf; const char *cp_end = cp + term->u.general->len; const char *src; int i = 0; - int prev_space = 0; + const char *space_map = NULL; int len; while ((len = (cp_end - cp)) > 0) { - map = map_chrs_input (&cp, len); + map = map_chrs_input (0, &cp, len); if (**map == *CHR_SPACE) - { - if (prev_space) - continue; - prev_space = 1; - } + space_map = *map; else - prev_space = 0; - for (src = *map; *src; src++) - termz[i++] = *src; + { + if (i && space_map) + for (src = space_map; *src; src++) + termz[i++] = *src; + space_map = NULL; + for (src = *map; *src; src++) + termz[i++] = *src; + } } termz[i] = '\0'; } @@ -887,16 +855,18 @@ static RSET rpn_search_APT_relevance (ZServerInfo *zi, { rset_relevance_parms parms; char termz[IT_MAX_WORD+1]; - char term_sub[IT_MAX_WORD+1]; + const char *termp = termz; struct grep_info grep_info; - char *p0 = termz; RSET result; int term_index = 0; + int r; parms.key_size = sizeof(struct it_key); - parms.max_rec = 100; - parms.cmp = key_compare; - parms.is = zi->wordIsam; + parms.max_rec = 1000; + parms.cmp = key_compare_it; + parms.get_pos = key_get_pos; + parms.is = zi->isam; + parms.isc = zi->isamc; parms.no_terms = 0; if (zapt->term->which != Z_Term_general) @@ -914,34 +884,10 @@ static RSET rpn_search_APT_relevance (ZServerInfo *zi, 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) + r = field_term (zi, zapt, &termp, 'w', attributeSet, &grep_info, + num_bases, basenames, 1); + if (r <= 0) 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; @@ -967,10 +913,11 @@ static RSET rpn_search_APT_cphrase (ZServerInfo *zi, oid_value attributeSet, int num_bases, char **basenames) { - rset_isam_parms parms; char termz[IT_MAX_WORD+1]; struct grep_info grep_info; RSET result; + const char *termp = termz; + int r; if (zapt->term->which != Z_Term_general) { @@ -986,20 +933,9 @@ static RSET rpn_search_APT_cphrase (ZServerInfo *zi, 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; - if (grep_info.isam_p_indx < 1) - result = rset_create (rset_kind_null, NULL); - else if (grep_info.isam_p_indx == 1) - { - parms.is = zi->wordIsam; - parms.pos = *grep_info.isam_p_buf; - result = rset_create (rset_kind_isam, &parms); - } - else - result = rset_trunc (zi->wordIsam, grep_info.isam_p_buf, - grep_info.isam_p_indx); + r = field_term (zi, zapt, &termp, 'p', attributeSet, &grep_info, + num_bases, basenames, 0); + result = rset_trunc (zi, grep_info.isam_p_buf, grep_info.isam_p_indx); #ifdef TERM_COUNT xfree(grep_info.term_no); #endif @@ -1007,7 +943,98 @@ static RSET rpn_search_APT_cphrase (ZServerInfo *zi, return result; } -static RSET rpn_prox (RSET *rset, int rset_no) +static RSET rpn_proximity (ZServerInfo *zi, RSET rset1, RSET rset2, + int ordered, + int exclusion, int relation, int distance) +{ + int i; + RSFD rsfd1, rsfd2; + int more1, more2; + struct it_key buf1, buf2; + RSFD rsfd_result; + RSET result; + rset_temp_parms parms; + + rsfd1 = rset_open (rset1, RSETF_READ|RSETF_SORT_SYSNO); + more1 = rset_read (rset1, rsfd1, &buf1); + + rsfd2 = rset_open (rset2, RSETF_READ|RSETF_SORT_SYSNO); + more2 = rset_read (rset2, rsfd2, &buf2); + + parms.key_size = sizeof (struct it_key); + parms.temp_path = res_get (zi->res, "setTmpDir"); + result = rset_create (rset_kind_temp, &parms); + rsfd_result = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); + + logf (LOG_DEBUG, "rpn_proximity excl=%d ord=%d rel=%d dis=%d", + exclusion, ordered, relation, distance); + while (more1 && more2) + { + int cmp = key_compare_it (&buf1, &buf2); + if (cmp < -1) + more1 = rset_read (rset1, rsfd1, &buf1); + else if (cmp > 1) + more2 = rset_read (rset2, rsfd2, &buf2); + else + { + int sysno = buf1.sysno; + int seqno[500]; + int n = 0; + + seqno[n++] = buf1.seqno; + while ((more1 = rset_read (rset1, rsfd1, &buf1)) && + sysno == buf1.sysno) + if (n < 500) + seqno[n++] = buf1.seqno; + do + { + for (i = 0; i= */ + if (diff >= distance) + excl = !excl; + break; + case 5: /* > */ + if (diff > distance) + excl = !excl; + break; + case 6: /* != */ + if (diff != distance) + excl = !excl; + break; + } + if (excl) + rset_write (result, rsfd_result, &buf2); + } + } while ((more2 = rset_read (rset2, rsfd2, &buf2)) && + sysno == buf2.sysno); + } + } + rset_close (result, rsfd_result); + rset_close (rset1, rsfd1); + rset_close (rset2, rsfd2); + return result; +} + +static RSET rpn_prox (ZServerInfo *zi, RSET *rset, int rset_no) { int i; RSFD *rsfd; @@ -1040,6 +1067,7 @@ static RSET rpn_prox (RSET *rset, int rset_no) } } parms.key_size = sizeof (struct it_key); + parms.temp_path = res_get (zi->res, "setTmpDir"); result = rset_create (rset_kind_temp, &parms); rsfd_result = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); @@ -1054,7 +1082,7 @@ static RSET rpn_prox (RSET *rset, int rset_no) *more = 0; break; } - cmp = key_compare (buf[i], buf[i-1]); + cmp = key_compare_it (buf[i], buf[i-1]); if (cmp > 1) { more[i-1] = rset_read (rset[i-1], rsfd[i-1], buf[i-1]); @@ -1099,10 +1127,9 @@ static RSET rpn_search_APT_phrase (ZServerInfo *zi, int num_bases, char **basenames) { char termz[IT_MAX_WORD+1]; - char term_sub[IT_MAX_WORD+1]; - char *p0 = termz; + const char *termp = termz; RSET rset[60], result; - int i, rset_no = 0; + int i, r, rset_no = 0; struct grep_info grep_info; if (zapt->term->which != Z_Term_general) @@ -1120,51 +1147,13 @@ static RSET rpn_search_APT_phrase (ZServerInfo *zi, 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; - if (grep_info.isam_p_indx == 0) - rset[rset_no] = rset_create (rset_kind_null, NULL); - else if (grep_info.isam_p_indx > 1) - rset[rset_no] = rset_trunc (zi->wordIsam, - grep_info.isam_p_buf, - grep_info.isam_p_indx); - else - { - rset_isam_parms parms; - - parms.is = zi->wordIsam; - parms.pos = *grep_info.isam_p_buf; - rset[rset_no] = rset_create (rset_kind_isam, &parms); - } + r = field_term (zi, zapt, &termp, 'w', attributeSet, &grep_info, + num_bases, basenames, 1); + if (r < 1) + break; + 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; @@ -1177,8 +1166,7 @@ static RSET rpn_search_APT_phrase (ZServerInfo *zi, return rset_create (rset_kind_null, NULL); else if (rset_no == 1) return (rset[0]); - - result = rpn_prox (rset, rset_no); + result = rpn_prox (zi, rset, rset_no); for (i = 0; ires, "setTmpDir"); result = rset_create (rset_kind_temp, &parms); rsfd = rset_open (result, RSETF_WRITE|RSETF_SORT_SYSNO); @@ -1311,8 +1300,10 @@ static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs, RSET r = NULL; if (zs->which == Z_RPNStructure_complex) { + Z_Operator *zop = zs->u.complex->roperator; rset_bool_parms bool_parms; int soft = 0; + bool_parms.rset_l = rpn_search_structure (zi, zs->u.complex->s1, attributeSet, @@ -1332,9 +1323,9 @@ static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs, if (rset_is_ranked(bool_parms.rset_r)) soft = 1; bool_parms.key_size = sizeof(struct it_key); - bool_parms.cmp = key_compare; + bool_parms.cmp = key_compare_it; - switch (zs->u.complex->roperator->which) + switch (zop->which) { case Z_Operator_and: r = rset_create (soft ? rset_kind_sand:rset_kind_and, &bool_parms); @@ -1345,8 +1336,30 @@ static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs, case Z_Operator_and_not: r = rset_create (soft ? rset_kind_snot:rset_kind_not, &bool_parms); break; + case Z_Operator_prox: + if (zop->u.prox->which != Z_ProxCode_known) + { + zi->errCode = 132; + return NULL; + } + if (*zop->u.prox->proximityUnitCode != Z_ProxUnit_word) + { + static char val[16]; + zi->errCode = 132; + zi->errString = val; + sprintf (val, "%d", *zop->u.prox->proximityUnitCode); + return NULL; + } + r = rpn_proximity (zi, bool_parms.rset_l, bool_parms.rset_r, + *zop->u.prox->ordered, + (!zop->u.prox->exclusion ? 0 : + *zop->u.prox->exclusion), + *zop->u.prox->relationType, + *zop->u.prox->distance); + break; default: - assert (0); + zi->errCode = 110; + return NULL; } } else if (zs->which == Z_RPNStructure_simple) @@ -1364,17 +1377,19 @@ static RSET rpn_search_structure (ZServerInfo *zi, Z_RPNStructure *zs, } else { - assert (0); + zi->errCode = 3; + return NULL; } } else { - assert (0); + zi->errCode = 3; + return NULL; } return r; } -void count_set_save (RSET *r, int *count) +void count_set_save (ZServerInfo *zi, RSET *r, int *count) { int psysno = 0; int kno = 0; @@ -1382,10 +1397,12 @@ void count_set_save (RSET *r, int *count) RSFD rfd, wfd; RSET w; rset_temp_parms parms; - + int maxResultSetSize = atoi (res_get_def (zi->res, + "maxResultSetSize", "400")); logf (LOG_DEBUG, "count_set_save"); *count = 0; parms.key_size = sizeof(struct it_key); + parms.temp_path = res_get (zi->res, "setTmpDir"); 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); @@ -1393,9 +1410,10 @@ void count_set_save (RSET *r, int *count) { if (key.sysno != psysno) { - rset_write (w, wfd, &key); - psysno = key.sysno; + if (*count < maxResultSetSize) + rset_write (w, wfd, &key); (*count)++; + psysno = key.sysno; } kno++; } @@ -1437,7 +1455,7 @@ int rpn_search (ZServerInfo *zi, oident *attrset; oid_value attributeSet; - dict_grep_cmap (zi->wordDict, map_chrs_input); + dict_grep_cmap (zi->dict, 0, map_chrs_input); zlog_rpn (rpn); zi->errCode = 0; @@ -1450,7 +1468,7 @@ int rpn_search (ZServerInfo *zi, if (!rset) return zi->errCode; if (rset_is_volatile(rset)) - count_set_save(&rset,hits); + count_set_save(zi, &rset,hits); else count_set (rset, hits); resultSetAdd (zi, setname, 1, rset); @@ -1483,7 +1501,6 @@ static int scan_handle (char *name, const char *info, int pos, void *client) 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); @@ -1531,26 +1548,25 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, 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, NULL); + 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 (attributeset == VAL_NONE) - attributeset = VAL_BIB1; - if (use_value == -1) use_value = 1016; for (base_no = 0; base_no < num_bases && ord_no < 32; base_no++) { - attent *attp; + attent attp; data1_local_attribute *local_attr; - attp = att_getentbyatt (attributeset, use_value); - if (!attp) + if (!att_getentbyatt (zi, &attp, attributeset, use_value)) { logf (LOG_DEBUG, "att_getentbyatt fail. set=%d use=%d", attributeset, use_value); @@ -1561,12 +1577,12 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, zi->errString = basenames[base_no]; return zi->errCode = 109; /* Database unavailable */ } - for (local_attr = attp->local_attributes; local_attr && ord_no < 32; + 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, + ord = zebTargetInfo_lookupSU (zi->zti, attp.attset_ordinal, local_attr->local); if (ord > 0) ords[ord_no++] = ord; @@ -1599,7 +1615,7 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, trans_scan_term (zi, zapt, termz+prefix_len); - dict_scan (zi->wordDict, termz, &before_tmp, &after_tmp, scan_info, + dict_scan (zi->dict, termz, &before_tmp, &after_tmp, scan_info, scan_handle); } glist = odr_malloc (zi->odr, (before+after)*sizeof(*glist)); @@ -1613,7 +1629,6 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, const char *mterm = NULL; const char *tst; RSET rset; - rset_isam_parms parms; for (j = 0; j < ord_no; j++) { @@ -1628,9 +1643,7 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, if (j0 == -1) break; scan_term_untrans (zi->odr, &glist[i+before].term, mterm); - parms.is = zi->wordIsam; - parms.pos = scan_info_array[j0].list[ptr[j0]].isam_p; - rset = rset_create (rset_kind_isam, &parms); + rset = rset_trunc (zi, &scan_info_array[j0].list[ptr[j0]].isam_p, 1); ptr[j0]++; for (j = j0+1; jwordIsam; - parms.pos = scan_info_array[j].list[ptr[j]].isam_p; - rset2 = rset_create (rset_kind_isam, &parms); + rset2 = + rset_trunc (zi, &scan_info_array[j].list[ptr[j]].isam_p, 1); bool_parms.key_size = sizeof(struct it_key); - bool_parms.cmp = key_compare; + bool_parms.cmp = key_compare_it; bool_parms.rset_l = rset; bool_parms.rset_r = rset2; @@ -1675,7 +1686,6 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, const char *mterm = NULL; const char *tst; RSET rset; - rset_isam_parms parms; for (j = 0; j odr, &glist[before-1-i].term, mterm); - parms.is = zi->wordIsam; - parms.pos = scan_info_array[j0].list[before-1-ptr[j0]].isam_p; - rset = rset_create (rset_kind_isam, &parms); + rset = rset_trunc + (zi, &scan_info_array[j0].list[before-1-ptr[j0]].isam_p, 1); ptr[j0]++; @@ -1704,16 +1713,14 @@ int rpn_scan (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, (tst=scan_info_array[j].list[before-1-ptr[j]].term) && !strcmp (tst, mterm)) { - rset_isam_parms parms; rset_bool_parms bool_parms; RSET rset2; - parms.is = zi->wordIsam; - parms.pos = scan_info_array[j].list[before-1-ptr[j]].isam_p; - rset2 = rset_create (rset_kind_isam, &parms); + rset2 = rset_trunc (zi, + &scan_info_array[j].list[before-1-ptr[j]].isam_p, 1); bool_parms.key_size = sizeof(struct it_key); - bool_parms.cmp = key_compare; + bool_parms.cmp = key_compare_it; bool_parms.rset_l = rset; bool_parms.rset_r = rset2;