X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Fzrpn.c;h=fc4dccaa89b684e21bae39a2a5886848f4844ce9;hb=ecf94fc25324414287d3bbfbeba4440e558edd17;hp=3d1eeeb45dcdd60d06d54bc64f5506f8113c6c43;hpb=8c1de7f1c9610a8da280fe93d785054ce86e7330;p=idzebra-moved-to-github.git diff --git a/index/zrpn.c b/index/zrpn.c index 3d1eeeb..caccbcd 100644 --- a/index/zrpn.c +++ b/index/zrpn.c @@ -1,155 +1,158 @@ -/* - * Copyright (C) 1994-1995, Index Data I/S - * All rights reserved. - * Sebastian Hammer, Adam Dickmeiss - * - * $Log: zrpn.c,v $ - * 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 - * More work on search engine. - * - * Revision 1.3 1995/09/04 15:20:22 adam - * Minor changes. - * - * Revision 1.2 1995/09/04 12:33:43 adam - * Various cleanup. YAZ util used instead. - * - * Revision 1.1 1995/09/04 09:10:40 adam - * More work on index add/del/update. - * Merge sort implemented. - * Initial work on z39 server. - * - */ +/* $Id: zrpn.c,v 1.173 2005-04-13 13:03:47 adam Exp $ + Copyright (C) 1995-2005 + Index Data ApS + +This file is part of the Zebra server. + +Zebra is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +Zebra is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with Zebra; see the file LICENSE.zebra. If not, write to the +Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. +*/ + + #include #include +#ifdef WIN32 +#include +#else #include +#endif +#include -#include "zserver.h" +#include "index.h" +#include -#include -#include -#include -#include -#include +#include +#include -/* - * attr_print: log attributes - */ -static void attr_print (Z_AttributesPlusTerm *t) -{ - int of, i; - for (of = 0; of < t->num_attributes; of++) - { - Z_AttributeElement *element; - element = t->attributeList[of]; +/* maximum number of terms in an and/or/phrase item */ +#define TERM_LIST_LENGTH_MAX 256 + +static const struct key_control it_ctrl = +{ + sizeof(struct it_key), + 2, /* we have sysnos and seqnos in this key, nothing more */ + key_compare_it, + key_logdump_txt, /* FIXME - clean up these functions */ + key_get_seq, +}; - switch (element->which) - { - case Z_AttributeValue_numeric: - logf (LOG_DEBUG, "attributeType=%d value=%d", - *element->attributeType, - *element->value.numeric); - break; - case Z_AttributeValue_complex: - logf (LOG_DEBUG, "attributeType=%d complex", - *element->attributeType); - for (i = 0; ivalue.complex->num_list; i++) - { - if (element->value.complex->list[i]->which == - Z_StringOrNumeric_string) - logf (LOG_DEBUG, " string: '%s'", - element->value.complex->list[i]->u.string); - else if (element->value.complex->list[i]->which == - Z_StringOrNumeric_numeric) - logf (LOG_DEBUG, " numeric: '%d'", - *element->value.complex->list[i]->u.numeric); - } - break; - default: - assert (0); - } - } -} -typedef struct { +const struct key_control *key_it_ctrl = &it_ctrl; + +struct rpn_char_map_info +{ + ZebraMaps zm; + int reg_type; +}; + +typedef struct +{ int type; int major; int minor; Z_AttributesPlusTerm *zapt; } AttrType; -static int attr_find (AttrType *src) + +static int log_level_set = 0; +static int log_level_rpn = 0; + +static const char **rpn_char_map_handler(void *vp, const char **from, int len) +{ + struct rpn_char_map_info *p = (struct rpn_char_map_info *) vp; + const char **out = zebra_maps_input(p->zm, p->reg_type, from, len, 0); +#if 0 + if (out && *out) + { + const char *outp = *out; + yaz_log(YLOG_LOG, "---"); + while (*outp) + { + yaz_log(YLOG_LOG, "%02X", *outp); + outp++; + } + } +#endif + return out; +} + +static void rpn_char_map_prepare(struct zebra_register *reg, int reg_type, + struct rpn_char_map_info *map_info) +{ + map_info->zm = reg->zebra_maps; + map_info->reg_type = reg_type; + dict_grep_cmap(reg->dict, map_info, rpn_char_map_handler); +} + +static int attr_find_ex(AttrType *src, oid_value *attributeSetP, + const char **string_value) { - while (src->major < src->zapt->num_attributes) + int num_attributes; + + num_attributes = src->zapt->attributes->num_attributes; + while (src->major < num_attributes) { Z_AttributeElement *element; - element = src->zapt->attributeList[src->major]; + element = src->zapt->attributes->attributes[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 != + if (src->minor >= element->value.complex->num_list) + break; + if (element->attributeSet && attributeSetP) + { + oident *attrset; + + attrset = oid_getentbyoid(element->attributeSet); + *attributeSetP = attrset->value; + } + if (element->value.complex->list[src->minor]->which == Z_StringOrNumeric_numeric) + { + ++(src->minor); + return + *element->value.complex->list[src->minor-1]->u.numeric; + } + else if (element->value.complex->list[src->minor]->which == + Z_StringOrNumeric_string) + { + if (!string_value) + break; + ++(src->minor); + *string_value = + element->value.complex->list[src->minor-1]->u.string; + return -2; + } + else break; - ++(src->minor); - return *element->value.complex->list[src->minor-1]->u.numeric; default: - assert (0); + assert(0); } } ++(src->major); @@ -157,7 +160,12 @@ static int attr_find (AttrType *src) return -1; } -static void attr_init (AttrType *src, Z_AttributesPlusTerm *zapt, +static int attr_find(AttrType *src, oid_value *attributeSetP) +{ + return attr_find_ex(src, attributeSetP, 0); +} + +static void attr_init(AttrType *src, Z_AttributesPlusTerm *zapt, int type) { src->zapt = zapt; @@ -166,574 +174,2660 @@ static void attr_init (AttrType *src, Z_AttributesPlusTerm *zapt, src->minor = 0; } -struct trunc_info { - 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; - - memcpy (ti->swapbuf, ti->heap[i1], ti->keysize); - memcpy (ti->heap[i1], ti->heap[i2], ti->keysize); - memcpy (ti->heap[i2], ti->swapbuf, ti->keysize); - - swap = ti->indx[i1]; - ti->indx[i1] = ti->indx[i2]; - ti->indx[i2] = swap; -} - -static void heap_delete (struct trunc_info *ti) -{ - int cur = 1, child = 2; - - assert (ti->heapnum > 0); - memcpy (ti->heap[1], ti->heap[ti->heapnum], ti->keysize); - ti->indx[1] = ti->indx[ti->heapnum--]; - while (child <= ti->heapnum) { - if (child < ti->heapnum && - (*ti->cmp)(ti->heap[child], ti->heap[1+child]) > 0) - child++; - if ((*ti->cmp)(ti->heap[cur], ti->heap[child]) > 0) - { - heap_swap (ti, cur, child); - cur = child; - child = 2*cur; - } - else - break; - } -} +#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; + ZebraHandle zh; + int reg_type; + ZebraSet termset; +}; -static void heap_insert (struct trunc_info *ti, const char *buf, int indx) +static void term_untrans(ZebraHandle zh, int reg_type, + char *dst, const char *src) { - int cur, parent; - - cur = ++(ti->heapnum); - memcpy (ti->heap[cur], buf, ti->keysize); - ti->indx[cur] = indx; - parent = cur/2; - while (parent && (*ti->cmp)(ti->heap[parent], ti->heap[cur]) > 0) + int len = 0; + while (*src) { - heap_swap (ti, cur, parent); - cur = parent; - parent = cur/2; + const char *cp = zebra_maps_output(zh->reg->zebra_maps, + reg_type, &src); + if (!cp && len < IT_MAX_WORD-1) + dst[len++] = *src++; + else + while (*cp && len < IT_MAX_WORD-1) + dst[len++] = *cp++; } + dst[len] = '\0'; } -static -struct trunc_info *heap_init (int size, int key_size, - int (*cmp)(const void *p1, const void *p2)) +static void add_isam_p(const char *name, const char *info, + struct grep_info *p) { - 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->swapbuf = xmalloc (ti->keysize); - ti->tmpbuf = xmalloc (ti->keysize); - ti->buf = xmalloc (size * ti->keysize); - for (i = size; --i >= 0; ) - ti->heap[i] = ti->buf + ti->keysize * i; - return ti; -} - -static void heap_close (struct trunc_info *ti) -{ - xfree (ti->indx); - xfree (ti->heap); - xfree (ti->swapbuf); - xfree (ti->tmpbuf); - xfree (ti); -} - -static RSET rset_trunc (ISAM isam, ISAM_P *isam_p, int from, int to, - int merge_chunk) -{ - logf (LOG_DEBUG, "rset_trunc, range=%d-%d", from, to-1); - if (to - from > merge_chunk) + if (!log_level_set) { - return NULL; + log_level_rpn = yaz_log_module_level("rpn"); + log_level_set = 1; } - else + if (p->isam_p_indx == p->isam_p_size) { - ISPT *ispt; - int i; - struct trunc_info *ti; - RSET result; - RSFD rsfd; - rset_temp_parms parms; - - ispt = xmalloc (sizeof(*ispt) * (to-from)); - parms.key_size = sizeof (struct it_key); - result = rset_create (rset_kind_temp, &parms); - rsfd = rset_open (result, 1); - - ti = heap_init (to-from, sizeof(struct it_key), - key_compare); - for (i = to-from; --i >= 0; ) + 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 = (ISAM_P *) xmalloc(sizeof(*new_isam_p_buf) * + p->isam_p_size); + if (p->isam_p_buf) { - ispt[i] = is_position (isam, isam_p[from+i]); - if (is_readkey (ispt[i], ti->tmpbuf)) - heap_insert (ti, ti->tmpbuf, i); + memcpy(new_isam_p_buf, p->isam_p_buf, + p->isam_p_indx * sizeof(*p->isam_p_buf)); + xfree(p->isam_p_buf); } - while (ti->heapnum) - { - int n = ti->indx[1]; + p->isam_p_buf = new_isam_p_buf; - rset_write (result, rsfd, ti->heap[1]); - heap_delete (ti); - if (is_readkey (ispt[n], ti->tmpbuf)) - heap_insert (ti, ti->tmpbuf, n); +#ifdef TERM_COUNT + new_term_no = (int *) 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); } - for (i = to-from; --i >= 0; ) - is_pt_free (ispt[i]); - rset_close (result, rsfd); - heap_close (ti); - xfree (ispt); - return result; + p->term_no = new_term_no; +#endif } -} - -static ISAM_P *isam_p_buf = NULL; -static int isam_p_size = 0; -static int isam_p_indx; + assert(*info == sizeof(*p->isam_p_buf)); + memcpy(p->isam_p_buf + p->isam_p_indx, info+1, sizeof(*p->isam_p_buf)); -static void add_isam_p (const char *info) -{ - if (isam_p_indx == isam_p_size) +#if 1 + if (p->termset) { - ISAM_P *new_isam_p_buf; + const char *db; + int set, use; + char term_tmp[IT_MAX_WORD]; + int su_code = 0; + int len = key_SU_decode (&su_code, name); - isam_p_size = 2*isam_p_size + 100; - new_isam_p_buf = xmalloc (sizeof(*new_isam_p_buf) * - isam_p_size); - if (isam_p_buf) - { - memcpy (new_isam_p_buf, isam_p_buf, - isam_p_indx * sizeof(*isam_p_buf)); - xfree (isam_p_buf); - } - isam_p_buf = new_isam_p_buf; + term_untrans (p->zh, p->reg_type, term_tmp, name+len+1); + yaz_log(log_level_rpn, "grep: %d %c %s", su_code, name[len], term_tmp); + zebraExplain_lookup_ord (p->zh->reg->zei, + su_code, &db, &set, &use); + yaz_log(log_level_rpn, "grep: set=%d use=%d db=%s", set, use, db); + + resultSetAddTerm(p->zh, p->termset, name[len], db, + set, use, term_tmp); } - assert (*info == sizeof(*isam_p_buf)); - memcpy (isam_p_buf + isam_p_indx, info+1, sizeof(*isam_p_buf)); - isam_p_indx++; +#endif + (p->isam_p_indx)++; } -static int grep_handle (Dict_char *name, const char *info) +static int grep_handle(char *name, const char *info, void *p) { - logf (LOG_DEBUG, "dict name: %s", name); - add_isam_p (info); + add_isam_p(name, info, (struct grep_info *) p); return 0; } -static int trunc_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, - const char *term_sub, ISAM_P **isam_ps) +static int term_pre(ZebraMaps zebra_maps, int reg_type, const char **src, + const char *ct1, const char *ct2, int first) { - char term_dict[2*IT_MAX_WORD+2]; - int i, j; - const char *info; - AttrType truncation; - int truncation_value; - AttrType use; - int use_value; - - attr_init (&use, zapt, 1); - use_value = attr_find (&use); - logf (LOG_DEBUG, "use value %d", use_value); - attr_init (&truncation, zapt, 5); - truncation_value = attr_find (&truncation); - logf (LOG_DEBUG, "truncation value %d", truncation_value); - - if (use_value == -1) - use_value = 1016; - i = index_word_prefix (term_dict, 1, use_value); + const char *s1, *s0 = *src; + const char **map; - switch (truncation_value) + /* skip white space */ + while (*s0) { - case -1: /* not specified */ - case 100: /* do not truncate */ - strcat (term_dict, term_sub); - logf (LOG_DEBUG, "dict_lookup: %s", term_dict); - if ((info = dict_lookup (zi->wordDict, term_dict))) - add_isam_p (info); - break; - case 1: /* right truncation */ - strcat (term_dict, term_sub); - strcat (term_dict, ".*"); - dict_lookup_grep (zi->wordDict, term_dict, 0, grep_handle); - break; - case 2: /* left truncation */ - case 3: /* left&right truncation */ - zi->errCode = 120; - return -1; - case 101: /* process # in term */ - for (j = strlen(term_dict), i = 0; term_sub[i] && i < 2; i++) - term_dict[j++] = term_sub[i]; - for (; term_sub[i]; i++) - if (term_sub[i] == '#') - { - term_dict[j++] = '.'; - term_dict[j++] = '*'; - } - else - term_dict[j++] = term_sub[i]; - term_dict[j] = '\0'; - dict_lookup_grep (zi->wordDict, term_dict, 0, grep_handle); - break; - case 102: /* regular expression */ - strcat (term_dict, term_sub); - dict_lookup_grep (zi->wordDict, term_dict, 0, grep_handle); - break; + if (ct1 && strchr(ct1, *s0)) + break; + if (ct2 && strchr(ct2, *s0)) + break; + s1 = s0; + map = zebra_maps_input(zebra_maps, reg_type, &s1, strlen(s1), first); + if (**map != *CHR_SPACE) + break; + s0 = s1; } - *isam_ps = isam_p_buf; - logf (LOG_DEBUG, "%d positions", isam_p_indx); - return 0; + *src = s0; + return *s0; } -static void trans_term (ZServerInfo *zi, Z_AttributesPlusTerm *zapt, - char *termz) + +static void esc_str(char *out_buf, int out_size, + const char *in_buf, int in_size) { - size_t i, sizez; - Z_Term *term = zapt->term; + int k; - sizez = term->u.general->len; - if (sizez > IT_MAX_WORD) - sizez = IT_MAX_WORD; - for (i = 0; i < sizez; i++) - termz[i] = index_char_cvt (term->u.general->buf[i]); - termz[i] = '\0'; + assert(out_buf); + assert(in_buf); + assert(out_size > 20); + *out_buf = '\0'; + for (k = 0; k 126) + pc = '?'; + else + pc = c; + sprintf(out_buf +strlen(out_buf), "%02X:%c ", c, pc); + if (strlen(out_buf) > out_size-20) + { + strcat(out_buf, ".."); + break; + } + } } -static RSET rpn_search_APT_relevance (ZServerInfo *zi, - Z_AttributesPlusTerm *zapt) +#define REGEX_CHARS " []()|.*+?!" + +/* term_100: handle term, where trunc = none(no operators at all) */ +static int term_100(ZebraMaps zebra_maps, int reg_type, + const char **src, char *dst, int space_split, + char *dst_term) { - rset_relevance_parms parms; - char termz[IT_MAX_WORD+1]; - char term_sub[IT_MAX_WORD+1]; - char *p0 = termz, *p1 = NULL; - Z_Term *term = zapt->term; + const char *s0; + const char **map; + int i = 0; + int j = 0; - parms.key_size = sizeof(struct it_key); - parms.max_rec = 100; - parms.cmp = key_compare; - parms.is = zi->wordIsam; + const char *space_start = 0; + const char *space_end = 0; - if (term->which != Z_Term_general) + if (!term_pre(zebra_maps, reg_type, src, NULL, NULL, !space_split)) + return 0; + s0 = *src; + while (*s0) { - zi->errCode = 124; - return NULL; + const char *s1 = s0; + int q_map_match = 0; + map = zebra_maps_search(zebra_maps, reg_type, &s0, strlen(s0), + &q_map_match); + if (space_split) + { + if (**map == *CHR_SPACE) + break; + } + else /* complete subfield only. */ + { + if (**map == *CHR_SPACE) + { /* save space mapping for later .. */ + space_start = s1; + space_end = s0; + continue; + } + else if (space_start) + { /* reload last space */ + while (space_start < space_end) + { + if (strchr(REGEX_CHARS, *space_start)) + dst[i++] = '\\'; + dst_term[j++] = *space_start; + dst[i++] = *space_start++; + } + /* and reset */ + space_start = space_end = 0; + } + } + /* add non-space char */ + memcpy(dst_term+j, s1, s0 - s1); + j += (s0 - s1); + if (!q_map_match) + { + while (s1 < s0) + { + if (strchr(REGEX_CHARS, *s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + else + { + char tmpbuf[80]; + esc_str(tmpbuf, sizeof(tmpbuf), map[0], strlen(map[0])); + + strcpy(dst + i, map[0]); + i += strlen(map[0]); + } } - trans_term (zi, zapt, termz); - isam_p_indx = 0; /* global, set by trunc_term - see below */ - while (1) + dst[i] = '\0'; + dst_term[j] = '\0'; + *src = s0; + return i; +} + +/* term_101: handle term, where trunc = Process # */ +static int term_101(ZebraMaps zebra_maps, int reg_type, + const char **src, char *dst, int space_split, + char *dst_term) +{ + const char *s0; + const char **map; + int i = 0; + int j = 0; + + if (!term_pre(zebra_maps, reg_type, src, "#", "#", !space_split)) + return 0; + s0 = *src; + while (*s0) { - if ((p1 = strchr (p0, ' '))) + if (*s0 == '#') { - memcpy (term_sub, p0, p1-p0); - term_sub[p1-p0] = '\0'; + dst[i++] = '.'; + dst[i++] = '*'; + dst_term[j++] = *s0++; } else - strcpy (term_sub, p0); - if (trunc_term (zi, zapt, term_sub, &parms.isam_positions)) - return NULL; - if (!p1) - break; - p0 = p1+1; + { + const char *s1 = s0; + int q_map_match = 0; + map = zebra_maps_search(zebra_maps, reg_type, &s0, strlen(s0), + &q_map_match); + if (space_split && **map == *CHR_SPACE) + break; + + /* add non-space char */ + memcpy(dst_term+j, s1, s0 - s1); + j += (s0 - s1); + if (!q_map_match) + { + while (s1 < s0) + { + if (strchr(REGEX_CHARS, *s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + else + { + char tmpbuf[80]; + esc_str(tmpbuf, sizeof(tmpbuf), map[0], strlen(map[0])); + + strcpy(dst + i, map[0]); + i += strlen(map[0]); + } + } } - parms.no_isam_positions = isam_p_indx; - if (isam_p_indx > 0) - return rset_create (rset_kind_relevance, &parms); - else - return rset_create (rset_kind_null, NULL); + dst[i] = '\0'; + dst_term[j++] = '\0'; + *src = s0; + return i; } -static RSET rpn_search_APT_word (ZServerInfo *zi, - Z_AttributesPlusTerm *zapt) +/* term_103: handle term, where trunc = re-2 (regular expressions) */ +static int term_103(ZebraMaps zebra_maps, int reg_type, const char **src, + char *dst, int *errors, int space_split, + char *dst_term) { - ISAM_P *isam_positions; - rset_isam_parms parms; - - char termz[IT_MAX_WORD+1]; - Z_Term *term = zapt->term; + int i = 0; + int j = 0; + const char *s0; + const char **map; - if (term->which != Z_Term_general) + if (!term_pre(zebra_maps, reg_type, src, "^\\()[].*+?|", "(", !space_split)) + return 0; + s0 = *src; + if (errors && *s0 == '+' && s0[1] && s0[2] == '+' && s0[3] && + isdigit(((const unsigned char *)s0)[1])) { - zi->errCode = 124; - return NULL; + *errors = s0[1] - '0'; + s0 += 3; + if (*errors > 3) + *errors = 3; } - trans_term (zi, zapt, termz); - isam_p_indx = 0; /* global, set by trunc_term - see below */ - if (trunc_term (zi, zapt, termz, &isam_positions)) - return NULL; - if (isam_p_indx < 1) - return rset_create (rset_kind_null, NULL); - else if (isam_p_indx == 1) + while (*s0) { - parms.is = zi->wordIsam; - parms.pos = *isam_positions; - return rset_create (rset_kind_isam, &parms); + if (strchr("^\\()[].*+?|-", *s0)) + { + dst_term[j++] = *s0; + dst[i++] = *s0++; + } + else + { + const char *s1 = s0; + int q_map_match = 0; + map = zebra_maps_search(zebra_maps, reg_type, &s0, strlen(s0), + &q_map_match); + if (space_split && **map == *CHR_SPACE) + break; + + /* add non-space char */ + memcpy(dst_term+j, s1, s0 - s1); + j += (s0 - s1); + if (!q_map_match) + { + while (s1 < s0) + { + if (strchr(REGEX_CHARS, *s1)) + dst[i++] = '\\'; + dst[i++] = *s1++; + } + } + else + { + char tmpbuf[80]; + esc_str(tmpbuf, sizeof(tmpbuf), map[0], strlen(map[0])); + + strcpy(dst + i, map[0]); + i += strlen(map[0]); + } + } } - else - return rset_trunc (zi->wordIsam, isam_positions, 0, isam_p_indx, 400); + dst[i] = '\0'; + dst_term[j] = '\0'; + *src = s0; + + return i; } -static RSET rpn_search_APT_phrase (ZServerInfo *zi, - Z_AttributesPlusTerm *zapt) +/* term_103: handle term, where trunc = re-1 (regular expressions) */ +static int term_102 (ZebraMaps zebra_maps, int reg_type, const char **src, + char *dst, int space_split, char *dst_term) { - ISAM_P *isam_positions; - rset_isam_parms parms; + return term_103(zebra_maps, reg_type, src, dst, NULL, space_split, + dst_term); +} - char termz[IT_MAX_WORD+1]; - Z_Term *term = zapt->term; - if (term->which != Z_Term_general) +/* term_104: handle term, where trunc = Process # and ! */ +static int term_104(ZebraMaps zebra_maps, int reg_type, + const char **src, char *dst, int space_split, + char *dst_term) +{ + const char *s0, *s1; + const char **map; + int i = 0; + int j = 0; + + if (!term_pre(zebra_maps, reg_type, src, "?*#", "?*#", !space_split)) + return 0; + s0 = *src; + while (*s0) { - zi->errCode = 124; - return NULL; + if (*s0 == '?') + { + dst_term[j++] = *s0++; + if (*s0 >= '0' && *s0 <= '9') + { + int limit = 0; + while (*s0 >= '0' && *s0 <= '9') + { + limit = limit * 10 + (*s0 - '0'); + dst_term[j++] = *s0++; + } + if (limit > 20) + limit = 20; + while (--limit >= 0) + { + dst[i++] = '.'; + dst[i++] = '?'; + } + } + else + { + dst[i++] = '.'; + dst[i++] = '*'; + } + } + else if (*s0 == '*') + { + dst[i++] = '.'; + dst[i++] = '*'; + dst_term[j++] = *s0++; + } + else if (*s0 == '#') + { + dst[i++] = '.'; + dst_term[j++] = *s0++; + } + else + { + s1 = s0; + map = zebra_maps_input(zebra_maps, reg_type, &s0, strlen(s0), 0); + if (space_split && **map == *CHR_SPACE) + break; + while (s1 < s0) + { + if (strchr(REGEX_CHARS, *s1)) + dst[i++] = '\\'; + dst_term[j++] = *s1; + dst[i++] = *s1++; + } + } } - trans_term (zi, zapt, termz); - isam_p_indx = 0; /* global, set by trunc_term - see below */ - if (trunc_term (zi, zapt, termz, &isam_positions)) - return NULL; - if (isam_p_indx != 1) - return rset_create (rset_kind_null, NULL); - parms.is = zi->wordIsam; - parms.pos = *isam_positions; - return rset_create (rset_kind_isam, &parms); + dst[i] = '\0'; + dst_term[j++] = '\0'; + *src = s0; + return i; } -static RSET rpn_search_APT (ZServerInfo *zi, Z_AttributesPlusTerm *zapt) +/* term_105/106: handle term, where trunc = Process * and ! and right trunc */ +static int term_105 (ZebraMaps zebra_maps, int reg_type, + const char **src, char *dst, int space_split, + char *dst_term, int right_truncate) { - AttrType relation; - AttrType structure; - int relation_value, structure_value; + const char *s0, *s1; + const char **map; + int i = 0; + int j = 0; - attr_init (&relation, zapt, 2); - attr_init (&structure, zapt, 4); - - relation_value = attr_find (&relation); - structure_value = attr_find (&structure); - switch (structure_value) - { - case -1: - if (relation_value == 102) /* relevance relation */ - return rpn_search_APT_relevance (zi, zapt); - return rpn_search_APT_word (zi, zapt); - case 1: /* phrase */ - if (relation_value == 102) /* relevance relation */ - return rpn_search_APT_relevance (zi, zapt); - return rpn_search_APT_phrase (zi, zapt); - break; - case 2: /* word */ - if (relation_value == 102) /* relevance relation */ - return rpn_search_APT_relevance (zi, zapt); - return rpn_search_APT_word (zi, zapt); - case 3: /* key */ - break; - case 4: /* year */ - break; - case 5: /* date - normalized */ - break; - case 6: /* word list */ - return rpn_search_APT_relevance (zi, zapt); - 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); - case 106: /* document-text */ - return rpn_search_APT_relevance (zi, zapt); - case 107: /* local-number */ - break; - case 108: /* string */ - return rpn_search_APT_word (zi, zapt); - case 109: /* numeric string */ - break; + if (!term_pre(zebra_maps, reg_type, src, "*!", "*!", !space_split)) + return 0; + s0 = *src; + while (*s0) + { + if (*s0 == '*') + { + dst[i++] = '.'; + dst[i++] = '*'; + dst_term[j++] = *s0++; + } + else if (*s0 == '!') + { + dst[i++] = '.'; + dst_term[j++] = *s0++; + } + else + { + s1 = s0; + map = zebra_maps_input(zebra_maps, reg_type, &s0, strlen(s0), 0); + if (space_split && **map == *CHR_SPACE) + break; + while (s1 < s0) + { + if (strchr(REGEX_CHARS, *s1)) + dst[i++] = '\\'; + dst_term[j++] = *s1; + dst[i++] = *s1++; + } + } + } + if (right_truncate) + { + dst[i++] = '.'; + dst[i++] = '*'; } - zi->errCode = 118; - return NULL; + dst[i] = '\0'; + + dst_term[j++] = '\0'; + *src = s0; + return i; } -static RSET rpn_search_ref (ZServerInfo *zi, Z_ResultSetId *resultSetId) -{ - 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) +/* 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) { - RSET r = NULL; - if (zs->which == Z_RPNStructure_complex) - { - rset_bool_parms bool_parms; + int dst_p; + int w, d, i; + int pos = 0; + char numstr[20]; - bool_parms.rset_l = rpn_search_structure (zi, zs->u.complex->s1); - if (bool_parms.rset_l == NULL) - return NULL; - bool_parms.rset_r = rpn_search_structure (zi, zs->u.complex->s2); - if (bool_parms.rset_r == NULL) + yaz_log(YLOG_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) { - rset_delete (bool_parms.rset_l); - return NULL; + strcpy(dst, "([0-9]+|-("); + dst_p = strlen(dst); + islt = 1; } - bool_parms.key_size = sizeof(struct it_key); - bool_parms.cmp = key_compare; - - switch (zs->u.complex->operator->which) + else { - case Z_Operator_and: - r = rset_create (rset_kind_and, &bool_parms); - break; - case Z_Operator_or: - r = rset_create (rset_kind_or, &bool_parms); - break; - case Z_Operator_and_not: - r = rset_create (rset_kind_not, &bool_parms); - break; - default: - assert (0); + strcpy(dst, "(-("); + islt = 0; } + val = -val; } - else if (zs->which == Z_RPNStructure_simple) + dst_p = strlen(dst); + sprintf(numstr, "%d", val); + for (w = strlen(numstr); --w >= 0; pos++) { - if (zs->u.simple->which == Z_Operand_APT) + d = numstr[w]; + if (pos > 0) { - logf (LOG_DEBUG, "rpn_search_APT"); - r = rpn_search_APT (zi, zs->u.simple->u.attributesPlusTerm); + if (islt) + { + if (d == '0') + continue; + d--; + } + else + { + if (d == '9') + continue; + d++; + } } - else if (zs->u.simple->which == Z_Operand_resultSetId) + + strcpy(dst + dst_p, numstr); + dst_p = strlen(dst) - pos - 1; + + if (islt) { - logf (LOG_DEBUG, "rpn_search_ref"); - r = rpn_search_ref (zi, zs->u.simple->u.resultSetId); + 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 { - assert (0); + 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 abc ([b-].*|a[c-].*|ab[d-].*|abc.+) + * ([^-a].*|a[^-b].*ab[^-c].*|abc.+) + * >= abc ([b-].*|a[c-].*|ab[c-].*) + * ([^-a].*|a[^-b].*|ab[c-].*) + * < abc ([-0].*|a[-a].*|ab[-b].*) + * ([^a-].*|a[^b-].*|ab[^c-].*) + * <= abc ([-0].*|a[-a].*|ab[-b].*|abc) + * ([^a-].*|a[^b-].*|ab[^c-].*|abc) + */ +static int string_relation(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, char *term_dict, + oid_value attributeSet, + int reg_type, int space_split, char *term_dst) { - RSET rset; + AttrType relation; + int relation_value; + int i; + char *term_tmp = term_dict + strlen(term_dict); + char term_component[2*IT_MAX_WORD+20]; - zi->errCode = 0; - zi->errString = NULL; - rset = rpn_search_structure (zi, rpn->RPNStructure); - if (!rset) - return zi->errCode; - count_set (rset, hits); - resultSetAdd (zi, setname, 1, rset); - return zi->errCode; -} + attr_init(&relation, zapt, 2); + relation_value = attr_find(&relation, NULL); -static struct scan_entry *scan_list; -static ODR scan_odr; -static int scan_before, scan_after; -static int scan_prefix; + yaz_log(YLOG_DEBUG, "string relation value=%d", relation_value); + switch (relation_value) + { + case 1: + if (!term_100 (zh->reg->zebra_maps, reg_type, + term_sub, term_component, + space_split, term_dst)) + return 0; + yaz_log(log_level_rpn, "Relation <"); + + *term_tmp++ = '('; + for (i = 0; term_component[i]; ) + { + int j = 0; -static int scan_handle (Dict_char *name, const char *info, int pos) -{ - int idx; + if (i) + *term_tmp++ = '|'; + while (j < i) + string_rel_add_char (&term_tmp, term_component, &j); - if (pos > 0) - idx = scan_after - pos + scan_before; + *term_tmp++ = '['; + + *term_tmp++ = '^'; + string_rel_add_char (&term_tmp, term_component, &i); + *term_tmp++ = '-'; + + *term_tmp++ = ']'; + *term_tmp++ = '.'; + *term_tmp++ = '*'; + + if ((term_tmp - term_dict) > IT_MAX_WORD) + break; + } + *term_tmp++ = ')'; + *term_tmp = '\0'; + break; + case 2: + if (!term_100 (zh->reg->zebra_maps, reg_type, + term_sub, term_component, + space_split, term_dst)) + return 0; + yaz_log(log_level_rpn, "Relation <="); + + *term_tmp++ = '('; + for (i = 0; term_component[i]; ) + { + int j = 0; + + while (j < i) + string_rel_add_char (&term_tmp, term_component, &j); + *term_tmp++ = '['; + + *term_tmp++ = '^'; + string_rel_add_char (&term_tmp, term_component, &i); + *term_tmp++ = '-'; + + *term_tmp++ = ']'; + *term_tmp++ = '.'; + *term_tmp++ = '*'; + + *term_tmp++ = '|'; + + if ((term_tmp - term_dict) > IT_MAX_WORD) + break; + } + for (i = 0; term_component[i]; ) + string_rel_add_char (&term_tmp, term_component, &i); + *term_tmp++ = ')'; + *term_tmp = '\0'; + break; + case 5: + if (!term_100 (zh->reg->zebra_maps, reg_type, + term_sub, term_component, space_split, term_dst)) + return 0; + yaz_log(log_level_rpn, "Relation >"); + + *term_tmp++ = '('; + for (i = 0; term_component[i];) + { + int j = 0; + + while (j < i) + string_rel_add_char (&term_tmp, term_component, &j); + *term_tmp++ = '['; + + *term_tmp++ = '^'; + *term_tmp++ = '-'; + string_rel_add_char (&term_tmp, term_component, &i); + + *term_tmp++ = ']'; + *term_tmp++ = '.'; + *term_tmp++ = '*'; + + *term_tmp++ = '|'; + + if ((term_tmp - term_dict) > IT_MAX_WORD) + break; + } + for (i = 0; term_component[i];) + string_rel_add_char (&term_tmp, term_component, &i); + *term_tmp++ = '.'; + *term_tmp++ = '+'; + *term_tmp++ = ')'; + *term_tmp = '\0'; + break; + case 4: + if (!term_100 (zh->reg->zebra_maps, reg_type, term_sub, + term_component, space_split, term_dst)) + return 0; + yaz_log(log_level_rpn, "Relation >="); + + *term_tmp++ = '('; + for (i = 0; term_component[i];) + { + int j = 0; + + if (i) + *term_tmp++ = '|'; + while (j < i) + string_rel_add_char (&term_tmp, term_component, &j); + *term_tmp++ = '['; + + if (term_component[i+1]) + { + *term_tmp++ = '^'; + *term_tmp++ = '-'; + string_rel_add_char (&term_tmp, term_component, &i); + } + else + { + string_rel_add_char (&term_tmp, term_component, &i); + *term_tmp++ = '-'; + } + *term_tmp++ = ']'; + *term_tmp++ = '.'; + *term_tmp++ = '*'; + + if ((term_tmp - term_dict) > IT_MAX_WORD) + break; + } + *term_tmp++ = ')'; + *term_tmp = '\0'; + break; + case 3: + default: + yaz_log(log_level_rpn, "Relation ="); + if (!term_100 (zh->reg->zebra_maps, reg_type, term_sub, + term_component, space_split, term_dst)) + return 0; + strcat(term_tmp, "("); + strcat(term_tmp, term_component); + strcat(term_tmp, ")"); + } + return 1; +} + +static int string_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, + oid_value attributeSet, NMEM stream, + struct grep_info *grep_info, + int reg_type, int complete_flag, + int num_bases, char **basenames, + char *term_dst, int xpath_use); + +static RSET term_trunc(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, + oid_value attributeSet, NMEM stream, + struct grep_info *grep_info, + int reg_type, int complete_flag, + int num_bases, char **basenames, + char *term_dst, + const char *rank_type, int xpath_use, + NMEM rset_nmem) +{ + int r; + grep_info->isam_p_indx = 0; + r = string_term(zh, zapt, term_sub, attributeSet, stream, grep_info, + reg_type, complete_flag, num_bases, basenames, + term_dst, xpath_use); + if (r < 1) + return 0; + yaz_log(log_level_rpn, "term: %s", term_dst); + return rset_trunc(zh, grep_info->isam_p_buf, + grep_info->isam_p_indx, term_dst, + strlen(term_dst), rank_type, 1 /* preserve pos */, + zapt->term->which, rset_nmem, + key_it_ctrl,key_it_ctrl->scope); +} +static char *nmem_strdup_i(NMEM nmem, int v) +{ + char val_str[64]; + sprintf (val_str, "%d", v); + return nmem_strdup(nmem, val_str); +} + +static int string_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, + oid_value attributeSet, NMEM stream, + struct grep_info *grep_info, + int reg_type, int complete_flag, + int num_bases, char **basenames, + char *term_dst, int xpath_use) +{ + char term_dict[2*IT_MAX_WORD+4000]; + int j, r, base_no; + AttrType truncation; + int truncation_value; + AttrType use; + int use_value; + const char *use_string = 0; + oid_value curAttributeSet = attributeSet; + const char *termp; + struct rpn_char_map_info rcmi; + int space_split = complete_flag ? 0 : 1; + + int bases_ok = 0; /* no of databases with OK attribute */ + int errCode = 0; /* err code (if any is not OK) */ + char *errString = 0; /* addinfo */ + + rpn_char_map_prepare (zh->reg, reg_type, &rcmi); + attr_init (&use, zapt, 1); + use_value = attr_find_ex (&use, &curAttributeSet, &use_string); + yaz_log(log_level_rpn, "string_term, use value %d", use_value); + attr_init (&truncation, zapt, 5); + truncation_value = attr_find (&truncation, NULL); + yaz_log(log_level_rpn, "truncation value %d", truncation_value); + + if (use_value == -1) /* no attribute - assumy "any" */ + use_value = 1016; + for (base_no = 0; base_no < num_bases; base_no++) + { + int ord = -1; + int attr_ok = 0; + int regex_range = 0; + int init_pos = 0; + attent attp; + data1_local_attribute id_xpath_attr; + data1_local_attribute *local_attr; + int max_pos, prefix_len = 0; + + termp = *term_sub; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zh->errCode = 109; /* Database unavailable */ + zh->errString = basenames[base_no]; + return -1; + } + if (xpath_use > 0 && use_value == -2) + { + /* xpath mode and we have a string attribute */ + attp.local_attributes = &id_xpath_attr; + attp.attset_ordinal = VAL_IDXPATH; + id_xpath_attr.next = 0; + + use_value = xpath_use; /* xpath_use as use-attribute now */ + id_xpath_attr.local = use_value; + } + else if (curAttributeSet == VAL_IDXPATH && use_value >= 0) + { + /* X-Path attribute, use numeric value directly */ + attp.local_attributes = &id_xpath_attr; + attp.attset_ordinal = VAL_IDXPATH; + id_xpath_attr.next = 0; + id_xpath_attr.local = use_value; + } + else if (use_string && + (ord = zebraExplain_lookup_attr_str(zh->reg->zei, + use_string)) >= 0) + { + /* we have a match for a raw string attribute */ + char ord_buf[32]; + int i, ord_len; + + if (prefix_len) + term_dict[prefix_len++] = '|'; + else + term_dict[prefix_len++] = '('; + + ord_len = key_SU_encode (ord, ord_buf); + for (i = 0; inext) + { + char ord_buf[32]; + int i, ord_len; + + ord = zebraExplain_lookup_attr_su(zh->reg->zei, + attp.attset_ordinal, + local_attr->local); + if (ord < 0) + continue; + if (prefix_len) + term_dict[prefix_len++] = '|'; + else + term_dict[prefix_len++] = '('; + + ord_len = key_SU_encode (ord, ord_buf); + for (i = 0; ireg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ".*)"); + break; + case 2: /* keft truncation */ + term_dict[j++] = '('; term_dict[j++] = '.'; term_dict[j++] = '*'; + if (!term_100(zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ")"); + break; + case 3: /* left&right truncation */ + term_dict[j++] = '('; term_dict[j++] = '.'; term_dict[j++] = '*'; + if (!term_100(zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ".*)"); + break; + case 101: /* process # in term */ + term_dict[j++] = '('; + if (!term_101(zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ")"); + break; + case 102: /* Regexp-1 */ + term_dict[j++] = '('; + if (!term_102(zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ")"); + break; + case 103: /* Regexp-2 */ + r = 1; + term_dict[j++] = '('; + init_pos = 2; + if (!term_103 (zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, ®ex_range, + space_split, term_dst)) + return 0; + strcat(term_dict, ")"); + case 104: /* process # and ! in term */ + term_dict[j++] = '('; + if (!term_104 (zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + return 0; + strcat(term_dict, ")"); + break; + case 105: /* process * and ! in term */ + term_dict[j++] = '('; + if (!term_105 (zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst, 1)) + return 0; + strcat(term_dict, ")"); + break; + case 106: /* process * and ! in term */ + term_dict[j++] = '('; + if (!term_105 (zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst, 0)) + return 0; + strcat(term_dict, ")"); + break; + default: + zh->errCode = 120; + zh->errString = nmem_strdup_i(stream, truncation_value); + return -1; + } + if (attr_ok) + { + char buf[80]; + const char *input = term_dict + prefix_len; + esc_str(buf, sizeof(buf), input, strlen(input)); + } + if (attr_ok) + { + yaz_log(log_level_rpn, "dict_lookup_grep: %s", term_dict+prefix_len); + r = dict_lookup_grep(zh->reg->dict, term_dict, regex_range, + grep_info, &max_pos, init_pos, + grep_handle); + if (r) + yaz_log(YLOG_WARN, "dict_lookup_grep fail %d", r); + } + } + if (!bases_ok) + { + zh->errCode = errCode; + zh->errString = errString; + return -1; + } + *term_sub = termp; + yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return 1; +} + + +/* convert APT search term to UTF8 */ +static int zapt_term_to_utf8 (ZebraHandle zh, Z_AttributesPlusTerm *zapt, + char *termz) +{ + size_t sizez; + Z_Term *term = zapt->term; + + switch (term->which) + { + case Z_Term_general: + if (zh->iconv_to_utf8 != 0) + { + char *inbuf = term->u.general->buf; + size_t inleft = term->u.general->len; + char *outbuf = termz; + size_t outleft = IT_MAX_WORD-1; + size_t ret; + + ret = yaz_iconv(zh->iconv_to_utf8, &inbuf, &inleft, + &outbuf, &outleft); + if (ret == (size_t)(-1)) + { + ret = yaz_iconv(zh->iconv_to_utf8, 0, 0, 0, 0); + zh->errCode = 125; + return -1; + } + *outbuf = 0; + } + else + { + sizez = term->u.general->len; + if (sizez > IT_MAX_WORD-1) + sizez = IT_MAX_WORD-1; + memcpy (termz, term->u.general->buf, sizez); + termz[sizez] = '\0'; + } + break; + case Z_Term_characterString: + sizez = strlen(term->u.characterString); + if (sizez > IT_MAX_WORD-1) + sizez = IT_MAX_WORD-1; + memcpy (termz, term->u.characterString, sizez); + termz[sizez] = '\0'; + break; + default: + zh->errCode = 124; + return -1; + } + return 0; +} + +/* convert APT SCAN term to internal cmap */ +static int trans_scan_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + char *termz, int reg_type) +{ + char termz0[IT_MAX_WORD]; + + if (zapt_term_to_utf8(zh, zapt, termz0)) + return -1; /* error */ + else + { + const char **map; + const char *cp = (const char *) termz0; + const char *cp_end = cp + strlen(cp); + const char *src; + int i = 0; + const char *space_map = NULL; + int len; + + while ((len = (cp_end - cp)) > 0) + { + map = zebra_maps_input (zh->reg->zebra_maps, reg_type, &cp, len, 0); + if (**map == *CHR_SPACE) + space_map = *map; + else + { + 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'; + } + return 0; +} + +char *normalize_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char *termz, NMEM stream, unsigned reg_id) +{ + WRBUF wrbuf = 0; + AttrType truncation; + int truncation_value; + char *ex_list = 0; + + attr_init (&truncation, zapt, 5); + truncation_value = attr_find (&truncation, NULL); + + switch (truncation_value) + { + default: + ex_list = ""; + break; + case 101: + ex_list = "#"; + break; + case 102: + case 103: + ex_list = 0; + break; + case 104: + ex_list = "!#"; + break; + case 105: + ex_list = "!*"; + break; + } + if (ex_list) + wrbuf = zebra_replace(zh->reg->zebra_maps, reg_id, ex_list, + termz, strlen(termz)); + if (!wrbuf) + return nmem_strdup(stream, termz); + else + { + char *buf = (char*) nmem_malloc(stream, wrbuf_len(wrbuf)+1); + memcpy (buf, wrbuf_buf(wrbuf), wrbuf_len(wrbuf)); + buf[wrbuf_len(wrbuf)] = '\0'; + return buf; + } +} + +static void grep_info_delete (struct grep_info *grep_info) +{ +#ifdef TERM_COUNT + xfree(grep_info->term_no); +#endif + xfree (grep_info->isam_p_buf); +} + +static int grep_info_prepare (ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + struct grep_info *grep_info, + int reg_type, + NMEM stream) +{ + AttrType termset; + int termset_value_numeric; + const char *termset_value_string; + +#ifdef TERM_COUNT + grep_info->term_no = 0; +#endif + grep_info->isam_p_size = 0; + grep_info->isam_p_buf = NULL; + grep_info->zh = zh; + grep_info->reg_type = reg_type; + grep_info->termset = 0; + + if (!zapt) + return 0; + attr_init (&termset, zapt, 8); + termset_value_numeric = + attr_find_ex (&termset, NULL, &termset_value_string); + if (termset_value_numeric != -1) + { + char resname[32]; + const char *termset_name = 0; + if (termset_value_numeric != -2) + { + + sprintf (resname, "%d", termset_value_numeric); + termset_name = resname; + } + else + termset_name = termset_value_string; + yaz_log(log_level_rpn, "creating termset set %s", termset_name); + grep_info->termset = resultSetAdd (zh, termset_name, 1); + if (!grep_info->termset) + { + zh->errCode = 128; + zh->errString = nmem_strdup (stream, termset_name); + return -1; + } + } + return 0; +} + + +static RSET rpn_search_APT_phrase (ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + const char *termz_org, + oid_value attributeSet, + NMEM stream, + int reg_type, int complete_flag, + const char *rank_type, int xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem) +{ + char term_dst[IT_MAX_WORD+1]; + RSET rset[TERM_LIST_LENGTH_MAX], result; + size_t rset_no = 0; + struct grep_info grep_info; + char *termz = normalize_term(zh, zapt, termz_org, stream, reg_type); + const char *termp = termz; + + *term_dst = 0; + if (grep_info_prepare (zh, zapt, &grep_info, reg_type, stream)) + return 0; + for (; rset_no < sizeof(rset)/sizeof(*rset); rset_no++) + { + yaz_log(log_level_rpn, "APT_phrase termp=%s", termp); + rset[rset_no] = term_trunc(zh, zapt, &termp, attributeSet, + stream, &grep_info, + reg_type, complete_flag, + num_bases, basenames, + term_dst, rank_type, + xpath_use,rset_nmem); + if (!rset[rset_no]) + break; + } + grep_info_delete (&grep_info); + if (rset_no == 0) + return rsnull_create (rset_nmem,key_it_ctrl); + else if (rset_no == 1) + return (rset[0]); + else + result = rsprox_create( rset_nmem, key_it_ctrl, key_it_ctrl->scope, + rset_no, rset, + 1 /* ordered */, 0 /* exclusion */, + 3 /* relation */, 1 /* distance */); + return result; +} + +static RSET rpn_search_APT_or_list (ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + const char *termz_org, + oid_value attributeSet, + NMEM stream, + int reg_type, int complete_flag, + const char *rank_type, + int xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem) +{ + char term_dst[IT_MAX_WORD+1]; + RSET rset[TERM_LIST_LENGTH_MAX]; + size_t rset_no = 0; + struct grep_info grep_info; + char *termz = normalize_term(zh, zapt, termz_org, stream, reg_type); + const char *termp = termz; + + if (grep_info_prepare (zh, zapt, &grep_info, reg_type, stream)) + return 0; + for (; rset_no < sizeof(rset)/sizeof(*rset); rset_no++) + { + yaz_log(log_level_rpn, "APT_or_list termp=%s", termp); + rset[rset_no] = term_trunc(zh, zapt, &termp, attributeSet, + stream, &grep_info, + reg_type, complete_flag, + num_bases, basenames, + term_dst, rank_type, + xpath_use,rset_nmem); + if (!rset[rset_no]) + break; + } + grep_info_delete (&grep_info); + if (rset_no == 0) + return rsnull_create (rset_nmem,key_it_ctrl); + return rsmulti_or_create(rset_nmem, key_it_ctrl,key_it_ctrl->scope, + rset_no, rset); +} + +static RSET rpn_search_APT_and_list (ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + const char *termz_org, + oid_value attributeSet, + NMEM stream, + int reg_type, int complete_flag, + const char *rank_type, + int xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem) +{ + char term_dst[IT_MAX_WORD+1]; + RSET rset[TERM_LIST_LENGTH_MAX]; + size_t rset_no = 0; + struct grep_info grep_info; + char *termz = normalize_term(zh, zapt, termz_org, stream, reg_type); + const char *termp = termz; + + if (grep_info_prepare (zh, zapt, &grep_info, reg_type, stream)) + return 0; + for (; rset_no < sizeof(rset)/sizeof(*rset); rset_no++) + { + yaz_log(log_level_rpn, "APT_and_list termp=%s", termp); + rset[rset_no] = term_trunc(zh, zapt, &termp, attributeSet, + stream, &grep_info, + reg_type, complete_flag, + num_bases, basenames, + term_dst, rank_type, + xpath_use, rset_nmem); + if (!rset[rset_no]) + break; + } + grep_info_delete (&grep_info); + if (rset_no == 0) + return rsnull_create(rset_nmem,key_it_ctrl); + + return rsmulti_and_create(rset_nmem, key_it_ctrl, key_it_ctrl->scope, + rset_no, rset); +} + +static int numeric_relation (ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, + char *term_dict, + oid_value attributeSet, + struct grep_info *grep_info, + int *max_pos, + int reg_type, + char *term_dst) +{ + AttrType relation; + int relation_value; + int term_value; + int r; + char *term_tmp = term_dict + strlen(term_dict); + + attr_init (&relation, zapt, 2); + relation_value = attr_find (&relation, NULL); + + yaz_log(log_level_rpn, "numeric relation value=%d", relation_value); + + if (!term_100 (zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + switch (relation_value) + { + case 1: + yaz_log(log_level_rpn, "Relation <"); + gen_regular_rel (term_tmp, term_value-1, 1); + break; + case 2: + yaz_log(log_level_rpn, "Relation <="); + gen_regular_rel (term_tmp, term_value, 1); + break; + case 4: + yaz_log(log_level_rpn, "Relation >="); + gen_regular_rel (term_tmp, term_value, 0); + break; + case 5: + yaz_log(log_level_rpn, "Relation >"); + gen_regular_rel (term_tmp, term_value+1, 0); + break; + case 3: + default: + yaz_log(log_level_rpn, "Relation ="); + sprintf (term_tmp, "(0*%d)", term_value); + } + yaz_log(log_level_rpn, "dict_lookup_grep: %s", term_tmp); + r = dict_lookup_grep(zh->reg->dict, term_dict, 0, grep_info, max_pos, + 0, grep_handle); + if (r) + yaz_log(YLOG_WARN, "dict_lookup_grep fail, rel = gt: %d", r); + yaz_log(log_level_rpn, "%d positions", grep_info->isam_p_indx); + return 1; +} + +static int numeric_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char **term_sub, + oid_value attributeSet, struct grep_info *grep_info, + int reg_type, int complete_flag, + int num_bases, char **basenames, + char *term_dst, int xpath_use, NMEM stream) +{ + char term_dict[2*IT_MAX_WORD+2]; + int r, base_no; + AttrType use; + int use_value; + const char *use_string = 0; + oid_value curAttributeSet = attributeSet; + const char *termp; + struct rpn_char_map_info rcmi; + + int bases_ok = 0; /* no of databases with OK attribute */ + int errCode = 0; /* err code (if any is not OK) */ + char *errString = 0; /* addinfo */ + + rpn_char_map_prepare (zh->reg, reg_type, &rcmi); + attr_init (&use, zapt, 1); + use_value = attr_find_ex (&use, &curAttributeSet, &use_string); + + if (use_value == -1) + use_value = 1016; + + for (base_no = 0; base_no < num_bases; base_no++) + { + attent attp; + data1_local_attribute id_xpath_attr; + data1_local_attribute *local_attr; + int max_pos, prefix_len = 0; + + termp = *term_sub; + if (use_value == -2) /* string attribute (assume IDXPATH/any) */ + { + use_value = xpath_use; + attp.local_attributes = &id_xpath_attr; + attp.attset_ordinal = VAL_IDXPATH; + id_xpath_attr.next = 0; + id_xpath_attr.local = use_value; + } + else if (curAttributeSet == VAL_IDXPATH) + { + attp.local_attributes = &id_xpath_attr; + attp.attset_ordinal = VAL_IDXPATH; + id_xpath_attr.next = 0; + id_xpath_attr.local = use_value; + } + else + { + if ((r = att_getentbyatt (zh, &attp, curAttributeSet, use_value, + use_string))) + { + yaz_log(YLOG_DEBUG, "att_getentbyatt fail. set=%d use=%d r=%d", + curAttributeSet, use_value, r); + if (r == -1) + { + errString = nmem_strdup_i(stream, use_value); + errCode = 114; + } + else + errCode = 121; + continue; + } + } + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zh->errCode = 109; /* Database unavailable */ + zh->errString = basenames[base_no]; + return -1; + } + for (local_attr = attp.local_attributes; local_attr; + local_attr = local_attr->next) + { + int ord; + char ord_buf[32]; + int i, ord_len; + + ord = zebraExplain_lookup_attr_su(zh->reg->zei, + attp.attset_ordinal, + local_attr->local); + if (ord < 0) + continue; + if (prefix_len) + term_dict[prefix_len++] = '|'; + else + term_dict[prefix_len++] = '('; + + ord_len = key_SU_encode (ord, ord_buf); + for (i = 0; ierrCode = errCode; + zh->errString = errString; + return -1; + } + *term_sub = termp; + yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return 1; +} + +static RSET rpn_search_APT_numeric (ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + const char *termz, + oid_value attributeSet, + NMEM stream, + int reg_type, int complete_flag, + const char *rank_type, int xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem) +{ + char term_dst[IT_MAX_WORD+1]; + const char *termp = termz; + RSET rset[TERM_LIST_LENGTH_MAX]; + int r; + size_t rset_no = 0; + struct grep_info grep_info; + + yaz_log(log_level_rpn, "APT_numeric t='%s'",termz); + if (grep_info_prepare (zh, zapt, &grep_info, reg_type, stream)) + return 0; + for (; rset_no < sizeof(rset)/sizeof(*rset); rset_no++) + { + yaz_log(YLOG_DEBUG, "APT_numeric termp=%s", termp); + grep_info.isam_p_indx = 0; + r = numeric_term(zh, zapt, &termp, attributeSet, &grep_info, + reg_type, complete_flag, num_bases, basenames, + term_dst, xpath_use, + stream); + if (r < 1) + break; + yaz_log(YLOG_DEBUG, "term: %s", term_dst); + rset[rset_no] = rset_trunc(zh, grep_info.isam_p_buf, + grep_info.isam_p_indx, term_dst, + strlen(term_dst), rank_type, + 0 /* preserve position */, + zapt->term->which, rset_nmem, + key_it_ctrl,key_it_ctrl->scope); + if (!rset[rset_no]) + break; + } + grep_info_delete (&grep_info); + if (rset_no == 0) + return rsnull_create(rset_nmem,key_it_ctrl); + if (rset_no == 1) + return rset[0]; + return rsmulti_and_create(rset_nmem,key_it_ctrl,key_it_ctrl->scope, + rset_no, rset); +} + +static RSET rpn_search_APT_local (ZebraHandle zh, Z_AttributesPlusTerm *zapt, + const char *termz, + oid_value attributeSet, + NMEM stream, + const char *rank_type, NMEM rset_nmem) +{ + RSET result; + RSFD rsfd; + struct it_key key; + int sys; + result = rstemp_create( rset_nmem,key_it_ctrl,key_it_ctrl->scope, + res_get (zh->res, "setTmpDir"),0 ); + rsfd = rset_open (result, RSETF_WRITE); + + sys = atoi(termz); + if (sys <= 0) + sys = 1; + key.mem[0] = sys; + key.mem[1] = 1; + key.len = 2; + rset_write (rsfd, &key); + rset_close (rsfd); + return result; +} + +static RSET rpn_sort_spec (ZebraHandle zh, Z_AttributesPlusTerm *zapt, + oid_value attributeSet, NMEM stream, + Z_SortKeySpecList *sort_sequence, + const char *rank_type) +{ + int i; + int sort_relation_value; + AttrType sort_relation_type; + int use_value; + AttrType use_type; + Z_SortKeySpec *sks; + Z_SortKey *sk; + Z_AttributeElement *ae; + int oid[OID_SIZE]; + oident oe; + char termz[20]; + + attr_init (&sort_relation_type, zapt, 7); + sort_relation_value = attr_find (&sort_relation_type, &attributeSet); + + attr_init (&use_type, zapt, 1); + use_value = attr_find (&use_type, &attributeSet); + + if (!sort_sequence->specs) + { + sort_sequence->num_specs = 10; + sort_sequence->specs = (Z_SortKeySpec **) + nmem_malloc(stream, sort_sequence->num_specs * + sizeof(*sort_sequence->specs)); + for (i = 0; inum_specs; i++) + sort_sequence->specs[i] = 0; + } + if (zapt->term->which != Z_Term_general) + i = 0; + else + i = atoi_n ((char *) zapt->term->u.general->buf, + zapt->term->u.general->len); + if (i >= sort_sequence->num_specs) + i = 0; + sprintf (termz, "%d", i); + + oe.proto = PROTO_Z3950; + oe.oclass = CLASS_ATTSET; + oe.value = attributeSet; + if (!oid_ent_to_oid (&oe, oid)) + return 0; + + sks = (Z_SortKeySpec *) nmem_malloc(stream, sizeof(*sks)); + sks->sortElement = (Z_SortElement *) + nmem_malloc(stream, sizeof(*sks->sortElement)); + sks->sortElement->which = Z_SortElement_generic; + sk = sks->sortElement->u.generic = (Z_SortKey *) + nmem_malloc(stream, sizeof(*sk)); + sk->which = Z_SortKey_sortAttributes; + sk->u.sortAttributes = (Z_SortAttributes *) + nmem_malloc(stream, sizeof(*sk->u.sortAttributes)); + + sk->u.sortAttributes->id = oid; + sk->u.sortAttributes->list = (Z_AttributeList *) + nmem_malloc(stream, sizeof(*sk->u.sortAttributes->list)); + sk->u.sortAttributes->list->num_attributes = 1; + sk->u.sortAttributes->list->attributes = (Z_AttributeElement **) + nmem_malloc(stream, sizeof(*sk->u.sortAttributes->list->attributes)); + ae = *sk->u.sortAttributes->list->attributes = (Z_AttributeElement *) + nmem_malloc(stream, sizeof(**sk->u.sortAttributes->list->attributes)); + ae->attributeSet = 0; + ae->attributeType = (int *) + nmem_malloc(stream, sizeof(*ae->attributeType)); + *ae->attributeType = 1; + ae->which = Z_AttributeValue_numeric; + ae->value.numeric = (int *) + nmem_malloc(stream, sizeof(*ae->value.numeric)); + *ae->value.numeric = use_value; + + sks->sortRelation = (int *) + nmem_malloc(stream, sizeof(*sks->sortRelation)); + if (sort_relation_value == 1) + *sks->sortRelation = Z_SortKeySpec_ascending; + else if (sort_relation_value == 2) + *sks->sortRelation = Z_SortKeySpec_descending; + else + *sks->sortRelation = Z_SortKeySpec_ascending; + + sks->caseSensitivity = (int *) + nmem_malloc(stream, sizeof(*sks->caseSensitivity)); + *sks->caseSensitivity = 0; + + sks->which = Z_SortKeySpec_null; + sks->u.null = odr_nullval (); + sort_sequence->specs[i] = sks; + return rsnull_create (NULL,key_it_ctrl); + /* FIXME - nmem?? */ +} + + +static int parse_xpath(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + oid_value attributeSet, + struct xpath_location_step *xpath, int max, NMEM mem) +{ + oid_value curAttributeSet = attributeSet; + AttrType use; + const char *use_string = 0; + + attr_init (&use, zapt, 1); + attr_find_ex (&use, &curAttributeSet, &use_string); + + if (!use_string || *use_string != '/') + return -1; + + return zebra_parse_xpath_str(use_string, xpath, max, mem); +} + + + +static RSET xpath_trunc(ZebraHandle zh, NMEM stream, + int reg_type, const char *term, int use, + oid_value curAttributeSet, NMEM rset_nmem) +{ + RSET rset; + struct grep_info grep_info; + char term_dict[2048]; + char ord_buf[32]; + int prefix_len = 0; + int ord = zebraExplain_lookup_attr_su(zh->reg->zei, curAttributeSet, use); + int ord_len, i, r, max_pos; + int term_type = Z_Term_characterString; + const char *flags = "void"; + + if (grep_info_prepare (zh, 0 /* zapt */, &grep_info, '0', stream)) + return rsnull_create (rset_nmem,key_it_ctrl); + + if (ord < 0) + return rsnull_create (rset_nmem,key_it_ctrl); + if (prefix_len) + term_dict[prefix_len++] = '|'; + else + term_dict[prefix_len++] = '('; + + ord_len = key_SU_encode (ord, ord_buf); + for (i = 0; ireg->dict, term_dict, 0, + &grep_info, &max_pos, 0, grep_handle); + yaz_log (YLOG_DEBUG, "%s %d positions", term, + grep_info.isam_p_indx); + rset = rset_trunc(zh, grep_info.isam_p_buf, + grep_info.isam_p_indx, term, strlen(term), + flags, 1, term_type,rset_nmem, + key_it_ctrl, key_it_ctrl->scope); + grep_info_delete (&grep_info); + return rset; +} + +static RSET rpn_search_xpath (ZebraHandle zh, + oid_value attributeSet, + int num_bases, char **basenames, + NMEM stream, const char *rank_type, RSET rset, + int xpath_len, struct xpath_location_step *xpath, + NMEM rset_nmem) +{ + oid_value curAttributeSet = attributeSet; + int base_no; + int i; + + if (xpath_len < 0) + return rset; + + yaz_log (YLOG_DEBUG, "xpath len=%d", xpath_len); + for (i = 0; i a/.* + //a/b -> b/a/.* + /a -> a/ + /a/b -> b/a/ + + / -> none + + a[@attr = value]/b[@other = othervalue] + + /e/@a val range(e/,range(@a,freetext(w,1015,val),@a),e/) + /a/b val range(b/a/,freetext(w,1016,val),b/a/) + /a/b/@c val range(b/a/,range(@c,freetext(w,1016,val),@c),b/a/) + /a/b[@c = y] val range(b/a/,freetext(w,1016,val),b/a/,@c = y) + /a[@c = y]/b val range(a/,range(b/a/,freetext(w,1016,val),b/a/),a/,@c = y) + /a[@c = x]/b[@c = y] range(a/,range(b/a/,freetext(w,1016,val),b/a/,@c = y),a/,@c = x) + + */ + + dict_grep_cmap (zh->reg->dict, 0, 0); + + for (base_no = 0; base_no < num_bases; base_no++) + { + int level = xpath_len; + int first_path = 1; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zh->errCode = 109; /* Database unavailable */ + zh->errString = basenames[base_no]; + return rset; + } + while (--level >= 0) + { + char xpath_rev[128]; + int i, len; + RSET rset_start_tag = 0, rset_end_tag = 0, rset_attr = 0; + + *xpath_rev = 0; + len = 0; + for (i = level; i >= 1; --i) + { + const char *cp = xpath[i].part; + if (*cp) + { + for (;*cp; cp++) + if (*cp == '*') + { + memcpy (xpath_rev + len, "[^/]*", 5); + len += 5; + } + else if (*cp == ' ') + { + + xpath_rev[len++] = 1; + xpath_rev[len++] = ' '; + } + + else + xpath_rev[len++] = *cp; + xpath_rev[len++] = '/'; + } + else if (i == 1) /* // case */ + { + xpath_rev[len++] = '.'; + xpath_rev[len++] = '*'; + } + } + xpath_rev[len] = 0; + + if (xpath[level].predicate && + xpath[level].predicate->which == XPATH_PREDICATE_RELATION && + xpath[level].predicate->u.relation.name[0]) + { + WRBUF wbuf = wrbuf_alloc(); + wrbuf_puts(wbuf, xpath[level].predicate->u.relation.name+1); + if (xpath[level].predicate->u.relation.value) + { + const char *cp = xpath[level].predicate->u.relation.value; + wrbuf_putc(wbuf, '='); + + while (*cp) + { + if (strchr(REGEX_CHARS, *cp)) + wrbuf_putc(wbuf, '\\'); + wrbuf_putc(wbuf, *cp); + cp++; + } + } + wrbuf_puts(wbuf, ""); + rset_attr = xpath_trunc( + zh, stream, '0', wrbuf_buf(wbuf), 3, + curAttributeSet,rset_nmem); + wrbuf_free(wbuf, 1); + } + else + { + if (!first_path) + continue; + } + yaz_log (log_level_rpn, "xpath_rev (%d) = %s", level, xpath_rev); + if (strlen(xpath_rev)) + { + rset_start_tag = xpath_trunc(zh, stream, '0', + xpath_rev, 1, curAttributeSet, rset_nmem); + + rset_end_tag = xpath_trunc(zh, stream, '0', + xpath_rev, 2, curAttributeSet, rset_nmem); + + rset = rsbetween_create(rset_nmem, key_it_ctrl, + key_it_ctrl->scope, + rset_start_tag, rset, + rset_end_tag, rset_attr); + } + first_path = 0; + } + } + + return rset; +} + + + +static RSET rpn_search_APT (ZebraHandle zh, Z_AttributesPlusTerm *zapt, + oid_value attributeSet, NMEM stream, + Z_SortKeySpecList *sort_sequence, + int num_bases, char **basenames, + NMEM rset_nmem) +{ + unsigned reg_id; + char *search_type = NULL; + char rank_type[128]; + int complete_flag; + int sort_flag; + char termz[IT_MAX_WORD+1]; + RSET rset = 0; + int xpath_len; + int xpath_use = 0; + struct xpath_location_step xpath[10]; + + if (!log_level_set) + { + log_level_rpn = yaz_log_module_level("rpn"); + log_level_set = 1; + } + zebra_maps_attr (zh->reg->zebra_maps, zapt, ®_id, &search_type, + rank_type, &complete_flag, &sort_flag); + + yaz_log(YLOG_DEBUG, "reg_id=%c", reg_id); + yaz_log(YLOG_DEBUG, "complete_flag=%d", complete_flag); + yaz_log(YLOG_DEBUG, "search_type=%s", search_type); + yaz_log(YLOG_DEBUG, "rank_type=%s", rank_type); + + if (zapt_term_to_utf8(zh, zapt, termz)) + return 0; + + if (sort_flag) + return rpn_sort_spec (zh, zapt, attributeSet, stream, sort_sequence, + rank_type); + xpath_len = parse_xpath(zh, zapt, attributeSet, xpath, 10, stream); + if (xpath_len >= 0) + { + xpath_use = 1016; + if (xpath[xpath_len-1].part[0] == '@') + xpath_use = 1015; + } + + if (!strcmp (search_type, "phrase")) + { + rset = rpn_search_APT_phrase (zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem); + } + else if (!strcmp (search_type, "and-list")) + { + rset = rpn_search_APT_and_list (zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem); + } + else if (!strcmp (search_type, "or-list")) + { + rset = rpn_search_APT_or_list (zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem); + } + else if (!strcmp (search_type, "local")) + { + rset = rpn_search_APT_local (zh, zapt, termz, attributeSet, stream, + rank_type, rset_nmem); + } + else if (!strcmp (search_type, "numeric")) + { + rset = rpn_search_APT_numeric (zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem); + } + else if (!strcmp (search_type, "always")) + { + rset = 0; + } + else + zh->errCode = 118; + return rpn_search_xpath (zh, attributeSet, num_bases, basenames, + stream, rank_type, rset, + xpath_len, xpath, rset_nmem); +} + +static RSET rpn_search_structure (ZebraHandle zh, Z_RPNStructure *zs, + oid_value attributeSet, + NMEM stream, NMEM rset_nmem, + Z_SortKeySpecList *sort_sequence, + int num_bases, char **basenames) +{ + RSET r = NULL; + if (zs->which == Z_RPNStructure_complex) + { + Z_Operator *zop = zs->u.complex->roperator; + RSET rsets[2]; /* l and r argument */ + + rsets[0]=rpn_search_structure (zh, zs->u.complex->s1, + attributeSet, stream, rset_nmem, + sort_sequence, + num_bases, basenames); + if (rsets[0] == NULL) + return NULL; + rsets[1]=rpn_search_structure (zh, zs->u.complex->s2, + attributeSet, stream, rset_nmem, + sort_sequence, + num_bases, basenames); + if (rsets[1] == NULL) + { + rset_delete (rsets[0]); + return NULL; + } + + switch (zop->which) + { + case Z_Operator_and: + r = rsmulti_and_create(rset_nmem, key_it_ctrl, key_it_ctrl->scope, + 2, rsets); + break; + case Z_Operator_or: + r = rsmulti_or_create(rset_nmem, key_it_ctrl, key_it_ctrl->scope, + 2, rsets); + break; + case Z_Operator_and_not: + r = rsbool_create_not(rset_nmem,key_it_ctrl, key_it_ctrl->scope, + rsets[0],rsets[1]); + break; + case Z_Operator_prox: + if (zop->u.prox->which != Z_ProximityOperator_known) + { + zh->errCode = 132; + return NULL; + } + if (*zop->u.prox->u.known != Z_ProxUnit_word) + { + char *val = (char *) nmem_malloc(stream, 16); + zh->errCode = 132; + zh->errString = val; + sprintf (val, "%d", *zop->u.prox->u.known); + return NULL; + } + else + { + /* new / old prox */ + r = rsprox_create(rset_nmem,key_it_ctrl,key_it_ctrl->scope, + 2, rsets, + *zop->u.prox->ordered, + (!zop->u.prox->exclusion ? + 0 : *zop->u.prox->exclusion), + *zop->u.prox->relationType, + *zop->u.prox->distance ); + } + break; + default: + zh->errCode = 110; + return NULL; + } + } + else if (zs->which == Z_RPNStructure_simple) + { + if (zs->u.simple->which == Z_Operand_APT) + { + yaz_log(YLOG_DEBUG, "rpn_search_APT"); + r = rpn_search_APT (zh, zs->u.simple->u.attributesPlusTerm, + attributeSet, stream, sort_sequence, + num_bases, basenames,rset_nmem); + } + else if (zs->u.simple->which == Z_Operand_resultSetId) + { + yaz_log(YLOG_DEBUG, "rpn_search_ref"); + r = resultSetRef (zh, zs->u.simple->u.resultSetId); + if (!r) + { + r = rsnull_create (rset_nmem,key_it_ctrl); + zh->errCode = 30; + zh->errString = + nmem_strdup (stream, zs->u.simple->u.resultSetId); + return 0; + } + else + rset_dup(r); + } + else + { + zh->errCode = 3; + return 0; + } + } + else + { + zh->errCode = 3; + return 0; + } + return r; +} + + +RSET rpn_search(ZebraHandle zh, NMEM nmem, NMEM rset_nmem, + Z_RPNQuery *rpn, int num_bases, char **basenames, + const char *setname, + ZebraSet sset) +{ + RSET rset; + oident *attrset; + oid_value attributeSet; + Z_SortKeySpecList *sort_sequence; + int sort_status, i; + + zh->errCode = 0; + zh->errString = NULL; + zh->hits = 0; + + sort_sequence = (Z_SortKeySpecList *) + nmem_malloc(nmem, sizeof(*sort_sequence)); + sort_sequence->num_specs = 10; /* FIXME - Hard-coded number */ + sort_sequence->specs = (Z_SortKeySpec **) + nmem_malloc(nmem, sort_sequence->num_specs * + sizeof(*sort_sequence->specs)); + for (i = 0; inum_specs; i++) + sort_sequence->specs[i] = 0; + + attrset = oid_getentbyoid (rpn->attributeSetId); + attributeSet = attrset->value; + rset = rpn_search_structure (zh, rpn->RPNStructure, attributeSet, + nmem, rset_nmem, + sort_sequence, num_bases, basenames); + if (!rset) + return 0; + + if (zh->errCode) + yaz_log(YLOG_DEBUG, "search error: %d", zh->errCode); + + for (i = 0; sort_sequence->specs[i]; i++) + ; + sort_sequence->num_specs = i; + if (!i) + resultSetRank (zh, sset, rset, rset_nmem); + else + { + yaz_log(YLOG_DEBUG, "resultSetSortSingle in rpn_search"); + resultSetSortSingle (zh, nmem, sset, rset, + sort_sequence, &sort_status); + if (zh->errCode) + { + yaz_log(YLOG_DEBUG, "resultSetSortSingle status = %d", zh->errCode); + } + } + return rset; +} + +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 = (struct 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; - scan_list[idx].term = odr_malloc (scan_odr, strlen(name + scan_prefix)+1); - strcpy (scan_list[idx].term, name + scan_prefix); - scan_list[idx].occurrences = 1; - logf (LOG_DEBUG, "pos=%3d idx=%3d name=%s", pos, idx, name); + scan_info->list[idx].term = (char *) + 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; } -int rpn_scan (ZServerInfo *zi, ODR odr, Z_AttributesPlusTerm *zapt, - int *position, int *num_entries, struct scan_entry **list) +static void scan_term_untrans (ZebraHandle zh, NMEM stream, int reg_type, + char **dst, const char *src) +{ + char term_src[IT_MAX_WORD]; + char term_dst[IT_MAX_WORD]; + + term_untrans (zh, reg_type, term_src, src); + + if (zh->iconv_from_utf8 != 0) + { + int len; + char *inbuf = term_src; + size_t inleft = strlen(term_src); + char *outbuf = term_dst; + size_t outleft = sizeof(term_dst)-1; + size_t ret; + + ret = yaz_iconv (zh->iconv_from_utf8, &inbuf, &inleft, + &outbuf, &outleft); + if (ret == (size_t)(-1)) + len = 0; + else + len = outbuf - term_dst; + *dst = nmem_malloc(stream, len + 1); + if (len > 0) + memcpy (*dst, term_dst, len); + (*dst)[len] = '\0'; + } + else + *dst = nmem_strdup(stream, term_src); +} + +static void count_set (RSET r, int *count) +{ + zint psysno = 0; + int kno = 0; + struct it_key key; + RSFD rfd; + + yaz_log(YLOG_DEBUG, "count_set"); + + *count = 0; + rfd = rset_open (r, RSETF_READ); + while (rset_read (rfd, &key,0 /* never mind terms */)) + { + if (key.mem[0] != psysno) + { + psysno = key.mem[0]; + (*count)++; + } + kno++; + } + rset_close (rfd); + yaz_log(YLOG_DEBUG, "%d keys, %d records", kno, *count); +} + +void rpn_scan(ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt, + oid_value attributeset, + int num_bases, char **basenames, + int *position, int *num_entries, ZebraScanEntry **list, + int *is_partial, RSET limit_set, int return_zero) { - int i, j, sizez; + 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; - Z_Term *term = zapt->term; + const char *use_string = 0; + struct scan_info *scan_info_array; + ZebraScanEntry *glist; + int ords[32], ord_no = 0; + int ptr[32]; - logf (LOG_DEBUG, "scan, position = %d, num = %d", pos, num); - scan_before = before = pos-1; - scan_after = after = 1+num-pos; - scan_odr = odr; + int bases_ok = 0; /* no of databases with OK attribute */ + int errCode = 0; /* err code (if any is not OK) */ + char *errString = 0; /* addinfo */ - logf (LOG_DEBUG, "scan, before = %d, after = %d", before, after); - - scan_list = *list = odr_malloc (odr, (before+after)*sizeof(**list)); + unsigned reg_id; + char *search_type = NULL; + char rank_type[128]; + int complete_flag; + int sort_flag; + NMEM rset_nmem = NULL; + + *list = 0; + + if (attributeset == VAL_NONE) + attributeset = VAL_BIB1; + + if (!limit_set) + { + AttrType termset; + int termset_value_numeric; + const char *termset_value_string; + attr_init (&termset, zapt, 8); + termset_value_numeric = + attr_find_ex (&termset, NULL, &termset_value_string); + if (termset_value_numeric != -1) + { + char resname[32]; + const char *termset_name = 0; + + if (termset_value_numeric != -2) + { + + sprintf (resname, "%d", termset_value_numeric); + termset_name = resname; + } + else + termset_name = termset_value_string; + + limit_set = resultSetRef (zh, termset_name); + } + } + + yaz_log (YLOG_DEBUG, "position = %d, num = %d set=%d", + pos, num, attributeset); + attr_init (&use, zapt, 1); - use_value = attr_find (&use); - logf (LOG_DEBUG, "use value %d", use_value); + use_value = attr_find_ex (&use, &attributeset, &use_string); + + if (zebra_maps_attr (zh->reg->zebra_maps, zapt, ®_id, &search_type, + rank_type, &complete_flag, &sort_flag)) + { + *num_entries = 0; + zh->errCode = 113; + return ; + } + yaz_log (YLOG_DEBUG, "use_value = %d", use_value); if (use_value == -1) use_value = 1016; - scan_prefix = i = index_word_prefix (termz, 1, use_value); - sizez = term->u.general->len; - if (sizez > IT_MAX_WORD) - sizez = IT_MAX_WORD; - for (j = 0; ju.general->buf[j]); - termz[j+i] = '\0'; + for (base_no = 0; base_no < num_bases && ord_no < 32; base_no++) + { + data1_local_attribute *local_attr; + attent attp; + int ord; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zh->errString = basenames[base_no]; + zh->errCode = 109; /* Database unavailable */ + *num_entries = 0; + return; + } + + if (use_string && + (ord = zebraExplain_lookup_attr_str(zh->reg->zei, + use_string)) >= 0) + { + /* we have a match for a raw string attribute */ + if (ord > 0) + ords[ord_no++] = ord; + attp.local_attributes = 0; /* no more attributes */ + } + else + { + int r; + + if ((r = att_getentbyatt (zh, &attp, attributeset, use_value, + use_string))) + { + yaz_log(YLOG_DEBUG, "att_getentbyatt fail. set=%d use=%d", + attributeset, use_value); + if (r == -1) + { + char val_str[32]; + sprintf (val_str, "%d", use_value); + errCode = 114; + errString = odr_strdup (stream, val_str); + } + else + errCode = 121; + continue; + } + } + bases_ok++; + for (local_attr = attp.local_attributes; local_attr && ord_no < 32; + local_attr = local_attr->next) + { + ord = zebraExplain_lookup_attr_su(zh->reg->zei, + attp.attset_ordinal, + local_attr->local); + if (ord > 0) + ords[ord_no++] = ord; + } + } + if (!bases_ok && errCode) + { + zh->errCode = errCode; + zh->errString = errString; + *num_entries = 0; + } + if (ord_no == 0) + { + *num_entries = 0; + return; + } + /* prepare dictionary scanning */ + before = pos-1; + after = 1+num-pos; + scan_info_array = (struct scan_info *) + odr_malloc(stream, 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; + struct rpn_char_map_info rcmi; + + rpn_char_map_prepare (zh->reg, reg_id, &rcmi); + + scan_info->before = before; + scan_info->after = after; + scan_info->odr = stream; + + scan_info->list = (struct scan_info_entry *) + odr_malloc(stream, (before+after) * sizeof(*scan_info->list)); + for (j = 0; jlist[j].term = NULL; + + prefix_len += key_SU_encode (ords[i], termz + prefix_len); + termz[prefix_len++] = reg_id; + termz[prefix_len] = 0; + strcpy(scan_info->prefix, termz); + + if (trans_scan_term(zh, zapt, termz+prefix_len, reg_id)) + return ; + + dict_scan(zh->reg->dict, termz, &before_tmp, &after_tmp, + scan_info, scan_handle); + } + glist = (ZebraScanEntry *) + odr_malloc(stream, (before+after)*sizeof(*glist)); + + rset_nmem = nmem_create(); + + /* consider terms after main term */ + for (i = 0; i < ord_no; i++) + ptr[i] = before; - dict_scan (zi->wordDict, termz, &before, &after, scan_handle); - return 0; + *is_partial = 0; + for (i = 0; imem, reg_id, + &glist[i+before].term, mterm); + rset = rset_trunc(zh, &scan_info_array[j0].list[ptr[j0]].isam_p, 1, + glist[i+before].term, strlen(glist[i+before].term), + NULL, 0, zapt->term->which, rset_nmem, + key_it_ctrl,key_it_ctrl->scope); + ptr[j0]++; + for (j = j0+1; jterm->which,rset_nmem, + key_it_ctrl, key_it_ctrl->scope); + rset = rsmulti_or_create(rset_nmem, key_it_ctrl, + 2, key_it_ctrl->scope, rsets); + ptr[j]++; + } + } + if (limit_set) + { + RSET rsets[2]; + rsets[0] = rset; + rsets[1] = rset_dup(limit_set); + + rset = rsmulti_and_create(rset_nmem, key_it_ctrl, + key_it_ctrl->scope, 2, rsets); + } + count_set(rset, &glist[i+before].occurrences); + rset_delete(rset); + } + if (i < after) + { + *num_entries -= (after-i); + *is_partial = 1; + } + + /* consider terms before main term */ + for (i = 0; i 0)) + { + j0 = j; + mterm = tst; + } + } + if (j0 == -1) + break; + + scan_term_untrans (zh, stream->mem, reg_id, + &glist[before-1-i].term, mterm); + + rset = rset_trunc + (zh, &scan_info_array[j0].list[before-1-ptr[j0]].isam_p, 1, + glist[before-1-i].term, strlen(glist[before-1-i].term), + NULL, 0, zapt->term->which,rset_nmem, + key_it_ctrl,key_it_ctrl->scope); + + ptr[j0]++; + + for (j = j0+1; jterm->which, rset_nmem, + key_it_ctrl, key_it_ctrl->scope); + rset = rsmulti_or_create(rset_nmem, key_it_ctrl, + 2, key_it_ctrl->scope, rsets); + + ptr[j]++; + } + } + if (limit_set) + { + RSET rsets[2]; + rsets[0] = rset; + rsets[1] = rset_dup(limit_set); + + rset = rsmulti_and_create(rset_nmem, key_it_ctrl, + key_it_ctrl->scope, 2, rsets); + } + count_set (rset, &glist[before-1-i].occurrences); + rset_delete (rset); + } + i = before-i; + if (i) + { + *is_partial = 1; + *position -= i; + *num_entries -= i; + } + + nmem_destroy(rset_nmem); + *list = glist + i; /* list is set to first 'real' entry */ + + yaz_log(YLOG_DEBUG, "position = %d, num_entries = %d", + *position, *num_entries); + if (zh->errCode) + yaz_log(YLOG_DEBUG, "scan error: %d", zh->errCode); } - +