From: Adam Dickmeiss Date: Thu, 21 Sep 2006 08:56:52 +0000 (+0000) Subject: Rename source files X-Git-Tag: ZEBRA.2.0.2~9 X-Git-Url: http://jsfdemo.indexdata.com/cgi-bin?a=commitdiff_plain;h=1ab2b4589da1d33372cc1f9a87afdac160ca11de;p=idzebra-moved-to-github.git Rename source files --- diff --git a/index/Makefile.am b/index/Makefile.am index 4ce4761..7a3949f 100644 --- a/index/Makefile.am +++ b/index/Makefile.am @@ -1,4 +1,4 @@ -## $Id: Makefile.am,v 1.53 2006-09-21 08:39:14 adam Exp $ +## $Id: Makefile.am,v 1.54 2006-09-21 08:56:52 adam Exp $ aux_libs = \ ../rset/libidzebra-rset.la \ @@ -80,7 +80,7 @@ libidzebra_2_0_la_SOURCES = \ orddict.c orddict.h \ rank.h rank1.c ranksimilarity.c rankstatic.c \ recindex.c recindex.h recindxp.h reckeys.c reckeys.h recstat.c retrieve.c \ - scan.c search.c sortidx.c symtab.c stream.c \ + rpnscan.c rpnsearch.c sortidx.c symtab.c stream.c \ update_path.c update_file.c trunc.c untrans.c \ zaptterm.c zebraapi.c zinfo.c zinfo.h zserver.h zsets.c diff --git a/index/rpnscan.c b/index/rpnscan.c new file mode 100644 index 0000000..ad68857 --- /dev/null +++ b/index/rpnscan.c @@ -0,0 +1,485 @@ +/* $Id: rpnscan.c,v 1.1 2006-09-21 08:56:52 adam Exp $ + Copyright (C) 1995-2006 + 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 this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +*/ + +#include +#include +#ifdef WIN32 +#include +#endif +#if HAVE_UNISTD_H +#include +#endif +#include + +#include +#include "index.h" +#include +#include +#include +#include + +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]; +}; + +/* convert APT SCAN term to internal cmap */ +static ZEBRA_RES 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) == ZEBRA_FAIL) + return ZEBRA_FAIL; /* 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 ZEBRA_OK; +} + +static void count_set(ZebraHandle zh, RSET rset, zint *count) +{ + zint psysno = 0; + struct it_key key; + RSFD rfd; + + yaz_log(YLOG_DEBUG, "count_set"); + + rset->hits_limit = zh->approx_limit; + + *count = 0; + rfd = rset_open(rset, RSETF_READ); + while (rset_read(rfd, &key,0 /* never mind terms */)) + { + if (key.mem[0] != psysno) + { + psysno = key.mem[0]; + if (rfd->counted_items >= rset->hits_limit) + break; + } + } + rset_close (rfd); + *count = rset->hits_count; +} + +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; + + /* skip special terms.. of no interest */ + if (name[len_prefix] < 4) + return 1; + + if (idx < 0) + return 0; + 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; +} + + +#define RPN_MAX_ORDS 32 + +ZEBRA_RES 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; + int pos = *position; + int num = *num_entries; + int before; + int after; + int base_no; + char termz[IT_MAX_WORD+20]; + struct scan_info *scan_info_array; + ZebraScanEntry *glist; + int ords[RPN_MAX_ORDS], ord_no = 0; + int ptr[RPN_MAX_ORDS]; + + unsigned index_type; + char *search_type = NULL; + char rank_type[128]; + int complete_flag; + int sort_flag; + NMEM rset_nmem = NULL; + struct rset_key_control *kc = 0; + + *list = 0; + *is_partial = 0; + + if (attributeset == VAL_NONE) + attributeset = VAL_BIB1; + + if (!limit_set) + { + AttrType termset; + int termset_value_numeric; + const char *termset_value_string; + attr_init_APT(&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); + + if (zebra_maps_attr(zh->reg->zebra_maps, zapt, &index_type, &search_type, + rank_type, &complete_flag, &sort_flag)) + { + *num_entries = 0; + zebra_setError(zh, YAZ_BIB1_UNSUPP_ATTRIBUTE_TYPE, 0); + return ZEBRA_FAIL; + } + for (base_no = 0; base_no < num_bases && ord_no < RPN_MAX_ORDS; base_no++) + { + int ord; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, + basenames[base_no]); + *num_entries = 0; + return ZEBRA_FAIL; + } + if (zebra_apt_get_ord(zh, zapt, index_type, 0, attributeset, &ord) + != ZEBRA_OK) + continue; + ords[ord_no++] = ord; + } + if (ord_no == 0) + { + *num_entries = 0; + return ZEBRA_FAIL; + } + /* prepare dictionary scanning */ + if (num < 1) + { + *num_entries = 0; + return ZEBRA_OK; + } + before = pos-1; + if (before < 0) + before = 0; + after = 1+num-pos; + if (after < 0) + after = 0; + yaz_log(YLOG_DEBUG, "rpn_scan pos=%d num=%d before=%d " + "after=%d before+after=%d", + pos, num, before, after, before+after); + 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, index_type, &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] = 0; + strcpy(scan_info->prefix, termz); + + if (trans_scan_term(zh, zapt, termz+prefix_len, index_type) == + ZEBRA_FAIL) + return ZEBRA_FAIL; + + 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(); + kc = zebra_key_control_create(zh); + + /* consider terms after main term */ + for (i = 0; i < ord_no; i++) + ptr[i] = before; + + *is_partial = 0; + for (i = 0; i= 0 && + (tst = scan_info_array[j].list[ptr[j]].term) && + (!mterm || strcmp (tst, mterm) < 0)) + { + j0 = j; + mterm = tst; + } + } + if (j0 == -1) + break; /* no value found, stop */ + + /* get result set for first one , but only if it's within bounds */ + if (lo >= 0) + { + /* get result set for first term */ + zebra_term_untrans_iconv(zh, stream->mem, index_type, + &glist[lo].term, mterm); + rset = rset_trunc(zh, &scan_info_array[j0].list[ptr[j0]].isam_p, 1, + glist[lo].term, strlen(glist[lo].term), + NULL, 0, zapt->term->which, rset_nmem, + kc, kc->scope, 0, index_type, 0 /* hits_limit */, + 0 /* term_ref_id_str */); + } + ptr[j0]++; /* move index for this set .. */ + /* get result set for remaining scan terms */ + for (j = j0+1; j= 0 && + (tst = scan_info_array[j].list[ptr[j]].term) && + !strcmp (tst, mterm)) + { + if (lo >= 0) + { + RSET rsets[2]; + + rsets[0] = rset; + rsets[1] = + rset_trunc( + zh, &scan_info_array[j].list[ptr[j]].isam_p, 1, + glist[lo].term, + strlen(glist[lo].term), NULL, 0, + zapt->term->which,rset_nmem, + kc, kc->scope, 0, index_type, 0 /* hits_limit */, + 0 /* term_ref_id_str */ ); + rset = rset_create_or(rset_nmem, kc, + kc->scope, 0 /* termid */, + 2, rsets); + } + ptr[j]++; + } + } + if (lo >= 0) + { + zint count; + /* merge with limit_set if given */ + if (limit_set) + { + RSET rsets[2]; + rsets[0] = rset; + rsets[1] = rset_dup(limit_set); + + rset = rset_create_and(rset_nmem, kc, kc->scope, 2, rsets); + } + /* count it */ + count_set(zh, rset, &count); + glist[lo].occurrences = count; + rset_delete(rset); + } + } + if (i < after) + { + *num_entries -= (after-i); + *is_partial = 1; + if (*num_entries < 0) + { + (*kc->dec)(kc); + nmem_destroy(rset_nmem); + *num_entries = 0; + return ZEBRA_OK; + } + } + /* consider terms before main term */ + for (i = 0; i= 0 && + (tst = scan_info_array[j].list[before-1-ptr[j]].term) && + (!mterm || strcmp (tst, mterm) > 0)) + { + j0 = j; + mterm = tst; + } + } + if (j0 == -1) + break; + + zebra_term_untrans_iconv(zh, stream->mem, index_type, + &glist[lo].term, mterm); + + rset = rset_trunc + (zh, &scan_info_array[j0].list[before-1-ptr[j0]].isam_p, 1, + glist[lo].term, strlen(glist[lo].term), + NULL, 0, zapt->term->which, rset_nmem, + kc, kc->scope, 0, index_type, 0 /* hits_limit */, + 0 /* term_ref_id_str */); + + ptr[j0]++; + + for (j = j0+1; j= 0 && + (tst = scan_info_array[j].list[before-1-ptr[j]].term) && + !strcmp (tst, mterm)) + { + RSET rsets[2]; + + rsets[0] = rset; + rsets[1] = rset_trunc( + zh, + &scan_info_array[j].list[before-1-ptr[j]].isam_p, 1, + glist[lo].term, + strlen(glist[lo].term), NULL, 0, + zapt->term->which, rset_nmem, + kc, kc->scope, 0, index_type, 0 /* hits_limit */, + 0 /* term_ref_id_str */); + rset = rset_create_or(rset_nmem, kc, + kc->scope, 0 /* termid */, 2, rsets); + + ptr[j]++; + } + } + if (limit_set) + { + RSET rsets[2]; + rsets[0] = rset; + rsets[1] = rset_dup(limit_set); + + rset = rset_create_and(rset_nmem, kc, kc->scope, 2, rsets); + } + count_set(zh, rset, &count); + glist[lo].occurrences = count; + rset_delete (rset); + } + (*kc->dec)(kc); + nmem_destroy(rset_nmem); + i = before-i; + if (i) + { + *is_partial = 1; + *position -= i; + *num_entries -= i; + if (*num_entries <= 0) + { + *num_entries = 0; + return ZEBRA_OK; + } + } + + *list = glist + i; /* list is set to first 'real' entry */ + + yaz_log(YLOG_DEBUG, "position = %d, num_entries = %d", + *position, *num_entries); + return ZEBRA_OK; +} + +/* + * Local variables: + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + * vim: shiftwidth=4 tabstop=8 expandtab + */ + diff --git a/index/rpnsearch.c b/index/rpnsearch.c new file mode 100644 index 0000000..909e9cc --- /dev/null +++ b/index/rpnsearch.c @@ -0,0 +1,2523 @@ +/* $Id: rpnsearch.c,v 1.1 2006-09-21 08:56:52 adam Exp $ + Copyright (C) 1995-2006 + 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 this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +*/ + +#include +#include +#ifdef WIN32 +#include +#endif +#if HAVE_UNISTD_H +#include +#endif +#include + +#include +#include "index.h" +#include +#include +#include +#include + +static int log_level_set = 0; +static int log_level_rpn = 0; + +#define TERMSET_DISABLE 1 + +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; +} + +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); +} + +#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 add_isam_p(const char *name, const char *info, + struct grep_info *p) +{ + if (!log_level_set) + { + log_level_rpn = yaz_log_module_level("rpn"); + log_level_set = 1; + } + if (p->isam_p_indx == p->isam_p_size) + { + ISAM_P *new_isam_p_buf; +#ifdef TERM_COUNT + int *new_term_no; +#endif + p->isam_p_size = 2*p->isam_p_size + 100; + new_isam_p_buf = (ISAM_P *) xmalloc(sizeof(*new_isam_p_buf) * + p->isam_p_size); + if (p->isam_p_buf) + { + memcpy(new_isam_p_buf, p->isam_p_buf, + p->isam_p_indx * sizeof(*p->isam_p_buf)); + xfree(p->isam_p_buf); + } + p->isam_p_buf = new_isam_p_buf; + +#ifdef TERM_COUNT + new_term_no = (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); + } + p->term_no = new_term_no; +#endif + } + assert(*info == sizeof(*p->isam_p_buf)); + memcpy(p->isam_p_buf + p->isam_p_indx, info+1, sizeof(*p->isam_p_buf)); + + if (p->termset) + { + const char *db; + char term_tmp[IT_MAX_WORD]; + int ord = 0; + const char *index_name; + int len = key_SU_decode (&ord, (const unsigned char *) name); + + zebra_term_untrans (p->zh, p->reg_type, term_tmp, name+len); + yaz_log(log_level_rpn, "grep: %d %c %s", ord, name[len], term_tmp); + zebraExplain_lookup_ord(p->zh->reg->zei, + ord, 0 /* index_type */, &db, &index_name); + yaz_log(log_level_rpn, "grep: db=%s index=%s", db, index_name); + + resultSetAddTerm(p->zh, p->termset, name[len], db, + index_name, term_tmp); + } + (p->isam_p_indx)++; +} + +static int grep_handle(char *name, const char *info, void *p) +{ + add_isam_p(name, info, (struct grep_info *) p); + return 0; +} + +static int term_pre(ZebraMaps zebra_maps, int reg_type, const char **src, + const char *ct1, const char *ct2, int first) +{ + 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 = zebra_maps_input(zebra_maps, reg_type, &s1, strlen(s1), first); + if (**map != *CHR_SPACE) + break; + s0 = s1; + } + *src = s0; + return *s0; +} + + +static void esc_str(char *out_buf, size_t out_size, + const char *in_buf, int in_size) +{ + int k; + + 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; + } + } +} + +#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) +{ + const char *s0; + const char **map; + int i = 0; + int j = 0; + + const char *space_start = 0; + const char *space_end = 0; + + if (!term_pre(zebra_maps, reg_type, src, NULL, NULL, !space_split)) + return 0; + s0 = *src; + while (*s0) + { + 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]); + } + } + 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 (*s0 == '#') + { + dst[i++] = '.'; + dst[i++] = '*'; + dst_term[j++] = *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]); + } + } + } + dst[i] = '\0'; + dst_term[j++] = '\0'; + *src = s0; + return i; +} + +/* 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) +{ + int i = 0; + int j = 0; + const char *s0; + const char **map; + + 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])) + { + *errors = s0[1] - '0'; + s0 += 3; + if (*errors > 3) + *errors = 3; + } + while (*s0) + { + 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]); + } + } + } + dst[i] = '\0'; + dst_term[j] = '\0'; + *src = s0; + + return i; +} + +/* 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) +{ + return term_103(zebra_maps, reg_type, src, dst, NULL, space_split, + dst_term); +} + + +/* 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; + 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 (*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 + { + 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]); + } + } + } + dst[i] = '\0'; + dst_term[j++] = '\0'; + *src = s0; + return i; +} + +/* 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) +{ + 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 (*s0 == '*') + { + dst[i++] = '.'; + dst[i++] = '*'; + dst_term[j++] = *s0++; + } + else if (*s0 == '!') + { + dst[i++] = '.'; + dst_term[j++] = *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]); + } + } + } + if (right_truncate) + { + dst[i++] = '.'; + dst[i++] = '*'; + } + dst[i] = '\0'; + + dst_term[j++] = '\0'; + *src = s0; + return i; +} + + +/* gen_regular_rel - generate regular expression from relation + * val: border value (inclusive) + * islt: 1 if <=; 0 if >=. + */ +static void gen_regular_rel(char *dst, int val, int islt) +{ + int dst_p; + int w, d, i; + int pos = 0; + char numstr[20]; + + 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) + { + strcpy(dst, "([0-9]+|-("); + dst_p = strlen(dst); + islt = 1; + } + else + { + strcpy(dst, "(-("); + islt = 0; + } + val = -val; + } + dst_p = strlen(dst); + sprintf(numstr, "%d", val); + for (w = strlen(numstr); --w >= 0; pos++) + { + d = numstr[w]; + if (pos > 0) + { + if (islt) + { + if (d == '0') + continue; + d--; + } + else + { + if (d == '9') + continue; + d++; + } + } + + strcpy(dst + dst_p, numstr); + dst_p = strlen(dst) - pos - 1; + + if (islt) + { + if (d != '0') + { + dst[dst_p++] = '['; + dst[dst_p++] = '0'; + dst[dst_p++] = '-'; + dst[dst_p++] = d; + dst[dst_p++] = ']'; + } + else + dst[dst_p++] = d; + } + else + { + if (d != '9') + { + dst[dst_p++] = '['; + dst[dst_p++] = d; + dst[dst_p++] = '-'; + dst[dst_p++] = '9'; + dst[dst_p++] = ']'; + } + else + dst[dst_p++] = d; + } + for (i = 0; i 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, + int *error_code) +{ + AttrType relation; + int relation_value; + int i; + char *term_tmp = term_dict + strlen(term_dict); + char term_component[2*IT_MAX_WORD+20]; + + attr_init_APT(&relation, zapt, 2); + relation_value = attr_find(&relation, NULL); + + *error_code = 0; + 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; + + if (i) + *term_tmp++ = '|'; + 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++ = '*'; + + 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: + case 102: + case -1: + if (!**term_sub) + return 1; + 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, ")"); + break; + case 103: + yaz_log(log_level_rpn, "Relation always matches"); + /* skip to end of term (we don't care what it is) */ + while (**term_sub != '\0') + (*term_sub)++; + break; + default: + *error_code = YAZ_BIB1_UNSUPP_RELATION_ATTRIBUTE; + return 0; + } + return 1; +} + +static ZEBRA_RES 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, + const char *xpath_use, + struct ord_list **ol); + +static ZEBRA_RES term_limits_APT(ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + zint *hits_limit_value, + const char **term_ref_id_str, + NMEM nmem) +{ + AttrType term_ref_id_attr; + AttrType hits_limit_attr; + int term_ref_id_int; + + attr_init_APT(&hits_limit_attr, zapt, 11); + *hits_limit_value = attr_find(&hits_limit_attr, NULL); + + attr_init_APT(&term_ref_id_attr, zapt, 10); + term_ref_id_int = attr_find_ex(&term_ref_id_attr, NULL, term_ref_id_str); + if (term_ref_id_int >= 0) + { + char *res = nmem_malloc(nmem, 20); + sprintf(res, "%d", term_ref_id_int); + *term_ref_id_str = res; + } + + /* no limit given ? */ + if (*hits_limit_value == -1) + { + if (*term_ref_id_str) + { + /* use global if term_ref is present */ + *hits_limit_value = zh->approx_limit; + } + else + { + /* no counting if term_ref is not present */ + *hits_limit_value = 0; + } + } + else if (*hits_limit_value == 0) + { + /* 0 is the same as global limit */ + *hits_limit_value = zh->approx_limit; + } + yaz_log(YLOG_DEBUG, "term_limits_APT ref_id=%s limit=" ZINT_FORMAT, + *term_ref_id_str ? *term_ref_id_str : "none", + *hits_limit_value); + return ZEBRA_OK; +} + +static ZEBRA_RES 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, + const char *xpath_use, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + ZEBRA_RES res; + struct ord_list *ol; + zint hits_limit_value; + const char *term_ref_id_str = 0; + *rset = 0; + + term_limits_APT(zh, zapt, &hits_limit_value, &term_ref_id_str, stream); + grep_info->isam_p_indx = 0; + res = string_term(zh, zapt, term_sub, attributeSet, stream, grep_info, + reg_type, complete_flag, num_bases, basenames, + term_dst, xpath_use, &ol); + if (res != ZEBRA_OK) + return res; + if (!*term_sub) /* no more terms ? */ + return res; + yaz_log(log_level_rpn, "term: %s", term_dst); + *rset = 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, + kc, kc->scope, ol, reg_type, hits_limit_value, + term_ref_id_str); + if (!*rset) + return ZEBRA_FAIL; + return ZEBRA_OK; +} + +static ZEBRA_RES 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, + const char *xpath_use, + struct ord_list **ol) +{ + char term_dict[2*IT_MAX_WORD+4000]; + int j, r, base_no; + AttrType truncation; + int truncation_value; + 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 */ + + *ol = ord_list_create(stream); + + rpn_char_map_prepare (zh->reg, reg_type, &rcmi); + attr_init_APT(&truncation, zapt, 5); + truncation_value = attr_find(&truncation, NULL); + yaz_log(log_level_rpn, "truncation value %d", truncation_value); + + for (base_no = 0; base_no < num_bases; base_no++) + { + int ord = -1; + int regex_range = 0; + int max_pos, prefix_len = 0; + int relation_error; + char ord_buf[32]; + int ord_len, i; + + termp = *term_sub; /* start of term for each database */ + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, + basenames[base_no]); + return ZEBRA_FAIL; + } + + if (zebra_apt_get_ord(zh, zapt, reg_type, xpath_use, + attributeSet, &ord) != ZEBRA_OK) + continue; + + bases_ok++; + + *ol = ord_list_append(stream, *ol, ord); + ord_len = key_SU_encode (ord, ord_buf); + + term_dict[prefix_len++] = '('; + for (i = 0; ireg->zebra_maps, reg_type, + &termp, term_dict + j, space_split, term_dst)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + strcat(term_dict, ")"); + break; + case 103: /* Regexp-2 */ + regex_range = 1; + term_dict[j++] = '('; + if (!term_103(zh->reg->zebra_maps, reg_type, + &termp, term_dict + j, ®ex_range, + space_split, term_dst)) + { + *term_sub = 0; + return ZEBRA_OK; + } + strcat(term_dict, ")"); + break; + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + 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)) + { + *term_sub = 0; + return ZEBRA_OK; + } + strcat(term_dict, ")"); + break; + default: + zebra_setError_zint(zh, + YAZ_BIB1_UNSUPP_TRUNCATION_ATTRIBUTE, + truncation_value); + return ZEBRA_FAIL; + } + if (1) + { + char buf[80]; + const char *input = term_dict + prefix_len; + esc_str(buf, sizeof(buf), input, strlen(input)); + } + 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, + ord_len /* number of "exact" chars */, + grep_handle); + if (r) + yaz_log(YLOG_WARN, "dict_lookup_grep fail %d", r); + } + if (!bases_ok) + return ZEBRA_FAIL; + *term_sub = termp; + yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return ZEBRA_OK; +} + + + +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 ZEBRA_RES grep_info_prepare(ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + struct grep_info *grep_info, + int reg_type) +{ + 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 ZEBRA_OK; + attr_init_APT(&termset, zapt, 8); + termset_value_numeric = + attr_find_ex(&termset, NULL, &termset_value_string); + if (termset_value_numeric != -1) + { +#if TERMSET_DISABLE + zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, "termset"); + return ZEBRA_FAIL; +#else + 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) + { + zebra_setError(zh, YAZ_BIB1_ILLEGAL_RESULT_SET_NAME, termset_name); + return ZEBRA_FAIL; + } +#endif + } + return ZEBRA_OK; +} + +/** + \brief Create result set(s) for list of terms + \param zh Zebra Handle + \param zapt Attributes Plust Term (RPN leaf) + \param termz term as used in query but converted to UTF-8 + \param attributeSet default attribute set + \param stream memory for result + \param reg_type register type ('w', 'p',..) + \param complete_flag whether it's phrases or not + \param rank_type term flags for ranking + \param xpath_use use attribute for X-Path (-1 for no X-path) + \param num_bases number of databases + \param basenames array of databases + \param rset_nmem memory for result sets + \param result_sets output result set for each term in list (output) + \param num_result_sets number of output result sets + \param kc rset key control to be used for created result sets +*/ +static ZEBRA_RES term_list_trunc(ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + const char *termz, + oid_value attributeSet, + NMEM stream, + int reg_type, int complete_flag, + const char *rank_type, + const char *xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET **result_sets, int *num_result_sets, + struct rset_key_control *kc) +{ + char term_dst[IT_MAX_WORD+1]; + struct grep_info grep_info; + const char *termp = termz; + int alloc_sets = 0; + + *num_result_sets = 0; + *term_dst = 0; + if (grep_info_prepare(zh, zapt, &grep_info, reg_type) == ZEBRA_FAIL) + return ZEBRA_FAIL; + while(1) + { + ZEBRA_RES res; + + if (alloc_sets == *num_result_sets) + { + int add = 10; + RSET *rnew = (RSET *) nmem_malloc(stream, (alloc_sets+add) * + sizeof(*rnew)); + if (alloc_sets) + memcpy(rnew, *result_sets, alloc_sets * sizeof(*rnew)); + alloc_sets = alloc_sets + add; + *result_sets = rnew; + } + res = term_trunc(zh, zapt, &termp, attributeSet, + stream, &grep_info, + reg_type, complete_flag, + num_bases, basenames, + term_dst, rank_type, + xpath_use, rset_nmem, + &(*result_sets)[*num_result_sets], + kc); + if (res != ZEBRA_OK) + { + int i; + for (i = 0; i < *num_result_sets; i++) + rset_delete((*result_sets)[i]); + grep_info_delete (&grep_info); + return res; + } + if ((*result_sets)[*num_result_sets] == 0) + break; + (*num_result_sets)++; + + if (!*termp) + break; + } + grep_info_delete(&grep_info); + return ZEBRA_OK; +} + +static ZEBRA_RES rpn_search_APT_position(ZebraHandle zh, + Z_AttributesPlusTerm *zapt, + oid_value attributeSet, + int reg_type, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + RSET *f_set; + int base_no; + int position_value; + int num_sets = 0; + AttrType position; + + attr_init_APT(&position, zapt, 3); + position_value = attr_find(&position, NULL); + switch(position_value) + { + case 3: + case -1: + return ZEBRA_OK; + case 1: + case 2: + break; + default: + zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, + position_value); + return ZEBRA_FAIL; + } + + if (!zebra_maps_is_first_in_field(zh->reg->zebra_maps, reg_type)) + { + zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, + position_value); + return ZEBRA_FAIL; + } + + if (!zh->reg->isamb && !zh->reg->isamc) + { + zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, + position_value); + return ZEBRA_FAIL; + } + f_set = xmalloc(sizeof(RSET) * num_bases); + for (base_no = 0; base_no < num_bases; base_no++) + { + int ord = -1; + char ord_buf[32]; + char term_dict[100]; + int ord_len; + char *val; + ISAM_P isam_p; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, + basenames[base_no]); + return ZEBRA_FAIL; + } + + if (zebra_apt_get_ord(zh, zapt, reg_type, 0, + attributeSet, &ord) != ZEBRA_OK) + continue; + + ord_len = key_SU_encode (ord, ord_buf); + memcpy(term_dict, ord_buf, ord_len); + strcpy(term_dict+ord_len, FIRST_IN_FIELD_STR); + val = dict_lookup(zh->reg->dict, term_dict); + if (!val) + continue; + assert(*val == sizeof(ISAM_P)); + memcpy(&isam_p, val+1, sizeof(isam_p)); + + + if (zh->reg->isamb) + f_set[num_sets++] = rsisamb_create(rset_nmem, kc, kc->scope, + zh->reg->isamb, isam_p, 0); + else if (zh->reg->isamc) + f_set[num_sets++] = rsisamc_create(rset_nmem, kc, kc->scope, + zh->reg->isamc, isam_p, 0); + } + if (num_sets) + { + *rset = rset_create_or(rset_nmem, kc, kc->scope, + 0 /* termid */, num_sets, f_set); + } + xfree(f_set); + return ZEBRA_OK; +} + +static ZEBRA_RES 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, + const char *xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + RSET *result_sets = 0; + int num_result_sets = 0; + ZEBRA_RES res = + term_list_trunc(zh, zapt, termz_org, attributeSet, + stream, reg_type, complete_flag, + rank_type, xpath_use, + num_bases, basenames, + rset_nmem, + &result_sets, &num_result_sets, kc); + + if (res != ZEBRA_OK) + return res; + + if (num_result_sets > 0) + { + RSET first_set = 0; + res = rpn_search_APT_position(zh, zapt, attributeSet, + reg_type, + num_bases, basenames, + rset_nmem, &first_set, + kc); + if (res != ZEBRA_OK) + return res; + if (first_set) + { + RSET *nsets = nmem_malloc(stream, + sizeof(RSET) * (num_result_sets+1)); + nsets[0] = first_set; + memcpy(nsets+1, result_sets, sizeof(RSET) * num_result_sets); + result_sets = nsets; + num_result_sets++; + } + } + if (num_result_sets == 0) + *rset = rset_create_null(rset_nmem, kc, 0); + else if (num_result_sets == 1) + *rset = result_sets[0]; + else + *rset = rset_create_prox(rset_nmem, kc, kc->scope, + num_result_sets, result_sets, + 1 /* ordered */, 0 /* exclusion */, + 3 /* relation */, 1 /* distance */); + if (!*rset) + return ZEBRA_FAIL; + return ZEBRA_OK; +} + +static ZEBRA_RES 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, + const char *xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + RSET *result_sets = 0; + int num_result_sets = 0; + int i; + ZEBRA_RES res = + term_list_trunc(zh, zapt, termz_org, attributeSet, + stream, reg_type, complete_flag, + rank_type, xpath_use, + num_bases, basenames, + rset_nmem, + &result_sets, &num_result_sets, kc); + if (res != ZEBRA_OK) + return res; + + for (i = 0; iscope, + 2, tmp_set, + 1 /* ordered */, 0 /* exclusion */, + 3 /* relation */, 1 /* distance */); + } + } + if (num_result_sets == 0) + *rset = rset_create_null(rset_nmem, kc, 0); + else if (num_result_sets == 1) + *rset = result_sets[0]; + else + *rset = rset_create_or(rset_nmem, kc, kc->scope, 0 /* termid */, + num_result_sets, result_sets); + if (!*rset) + return ZEBRA_FAIL; + return ZEBRA_OK; +} + +static ZEBRA_RES 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, + const char *xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + RSET *result_sets = 0; + int num_result_sets = 0; + int i; + ZEBRA_RES res = + term_list_trunc(zh, zapt, termz_org, attributeSet, + stream, reg_type, complete_flag, + rank_type, xpath_use, + num_bases, basenames, + rset_nmem, + &result_sets, &num_result_sets, + kc); + if (res != ZEBRA_OK) + return res; + for (i = 0; iscope, + 2, tmp_set, + 1 /* ordered */, 0 /* exclusion */, + 3 /* relation */, 1 /* distance */); + } + } + + + if (num_result_sets == 0) + *rset = rset_create_null(rset_nmem, kc, 0); + else if (num_result_sets == 1) + *rset = result_sets[0]; + else + *rset = rset_create_and(rset_nmem, kc, kc->scope, + num_result_sets, result_sets); + if (!*rset) + return ZEBRA_FAIL; + return ZEBRA_OK; +} + +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, + int *error_code) +{ + AttrType relation; + int relation_value; + int term_value; + int r; + char *term_tmp = term_dict + strlen(term_dict); + + *error_code = 0; + attr_init_APT(&relation, zapt, 2); + relation_value = attr_find(&relation, NULL); + + yaz_log(log_level_rpn, "numeric relation value=%d", relation_value); + + switch (relation_value) + { + case 1: + yaz_log(log_level_rpn, "Relation <"); + if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + gen_regular_rel(term_tmp, term_value-1, 1); + break; + case 2: + yaz_log(log_level_rpn, "Relation <="); + if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + gen_regular_rel(term_tmp, term_value, 1); + break; + case 4: + yaz_log(log_level_rpn, "Relation >="); + if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + gen_regular_rel(term_tmp, term_value, 0); + break; + case 5: + yaz_log(log_level_rpn, "Relation >"); + if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + gen_regular_rel(term_tmp, term_value+1, 0); + break; + case -1: + case 3: + yaz_log(log_level_rpn, "Relation ="); + if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, + term_dst)) + return 0; + term_value = atoi (term_tmp); + sprintf(term_tmp, "(0*%d)", term_value); + break; + case 103: + /* term_tmp untouched.. */ + while (**term_sub != '\0') + (*term_sub)++; + break; + default: + *error_code = YAZ_BIB1_UNSUPP_RELATION_ATTRIBUTE; + return 0; + } + 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 ZEBRA_RES numeric_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, + const char *xpath_use, + struct ord_list **ol) +{ + char term_dict[2*IT_MAX_WORD+2]; + int base_no; + const char *termp; + struct rpn_char_map_info rcmi; + + int bases_ok = 0; /* no of databases with OK attribute */ + + *ol = ord_list_create(stream); + + rpn_char_map_prepare (zh->reg, reg_type, &rcmi); + + for (base_no = 0; base_no < num_bases; base_no++) + { + int max_pos, prefix_len = 0; + int relation_error = 0; + int ord, ord_len, i; + char ord_buf[32]; + + termp = *term_sub; + + if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) + { + zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, + basenames[base_no]); + return ZEBRA_FAIL; + } + + if (zebra_apt_get_ord(zh, zapt, reg_type, xpath_use, + attributeSet, &ord) != ZEBRA_OK) + continue; + bases_ok++; + + *ol = ord_list_append(stream, *ol, ord); + + ord_len = key_SU_encode (ord, ord_buf); + + term_dict[prefix_len++] = '('; + for (i = 0; i < ord_len; i++) + { + term_dict[prefix_len++] = 1; + term_dict[prefix_len++] = ord_buf[i]; + } + term_dict[prefix_len++] = ')'; + term_dict[prefix_len] = '\0'; + + if (!numeric_relation(zh, zapt, &termp, term_dict, + attributeSet, grep_info, &max_pos, reg_type, + term_dst, &relation_error)) + { + if (relation_error) + { + zebra_setError(zh, relation_error, 0); + return ZEBRA_FAIL; + } + *term_sub = 0; + return ZEBRA_OK; + } + } + if (!bases_ok) + return ZEBRA_FAIL; + *term_sub = termp; + yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); + return ZEBRA_OK; +} + + +static ZEBRA_RES 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, + const char *xpath_use, + int num_bases, char **basenames, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + char term_dst[IT_MAX_WORD+1]; + const char *termp = termz; + RSET *result_sets = 0; + int num_result_sets = 0; + ZEBRA_RES res; + struct grep_info grep_info; + int alloc_sets = 0; + zint hits_limit_value; + const char *term_ref_id_str = 0; + + term_limits_APT(zh, zapt, &hits_limit_value, &term_ref_id_str, stream); + + yaz_log(log_level_rpn, "APT_numeric t='%s'", termz); + if (grep_info_prepare(zh, zapt, &grep_info, reg_type) == ZEBRA_FAIL) + return ZEBRA_FAIL; + while (1) + { + struct ord_list *ol; + if (alloc_sets == num_result_sets) + { + int add = 10; + RSET *rnew = (RSET *) nmem_malloc(stream, (alloc_sets+add) * + sizeof(*rnew)); + if (alloc_sets) + memcpy(rnew, result_sets, alloc_sets * sizeof(*rnew)); + alloc_sets = alloc_sets + add; + result_sets = rnew; + } + yaz_log(YLOG_DEBUG, "APT_numeric termp=%s", termp); + grep_info.isam_p_indx = 0; + res = numeric_term(zh, zapt, &termp, attributeSet, stream, &grep_info, + reg_type, complete_flag, num_bases, basenames, + term_dst, xpath_use, &ol); + if (res == ZEBRA_FAIL || termp == 0) + break; + yaz_log(YLOG_DEBUG, "term: %s", term_dst); + result_sets[num_result_sets] = + 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, + kc, kc->scope, ol, reg_type, + hits_limit_value, + term_ref_id_str); + if (!result_sets[num_result_sets]) + break; + num_result_sets++; + if (!*termp) + break; + } + grep_info_delete(&grep_info); + + if (res != ZEBRA_OK) + return res; + if (num_result_sets == 0) + *rset = rset_create_null(rset_nmem, kc, 0); + else if (num_result_sets == 1) + *rset = result_sets[0]; + else + *rset = rset_create_and(rset_nmem, kc, kc->scope, + num_result_sets, result_sets); + if (!*rset) + return ZEBRA_FAIL; + return ZEBRA_OK; +} + +static ZEBRA_RES 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 *rset, + struct rset_key_control *kc) +{ + RSFD rsfd; + struct it_key key; + int sys; + *rset = rset_create_temp(rset_nmem, kc, kc->scope, + res_get (zh->res, "setTmpDir"),0 ); + rsfd = rset_open(*rset, 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 ZEBRA_OK; +} + +static ZEBRA_RES rpn_sort_spec(ZebraHandle zh, Z_AttributesPlusTerm *zapt, + oid_value attributeSet, NMEM stream, + Z_SortKeySpecList *sort_sequence, + const char *rank_type, + NMEM rset_nmem, + RSET *rset, + struct rset_key_control *kc) +{ + int i; + int sort_relation_value; + AttrType sort_relation_type; + Z_SortKeySpec *sks; + Z_SortKey *sk; + int oid[OID_SIZE]; + oident oe; + char termz[20]; + + attr_init_APT(&sort_relation_type, zapt, 7); + sort_relation_value = attr_find(&sort_relation_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 ZEBRA_FAIL; + + 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 = zapt->attributes; + + 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; + *rset = rset_create_null(rset_nmem, kc, 0); + return ZEBRA_OK; +} + + +static int rpn_check_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_APT(&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, + const char *xpath_use, + NMEM rset_nmem, + struct rset_key_control *kc) +{ + RSET rset; + struct grep_info grep_info; + char term_dict[2048]; + char ord_buf[32]; + int prefix_len = 0; + int ord = zebraExplain_lookup_attr_str(zh->reg->zei, + zinfo_index_category_index, + reg_type, + xpath_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') == ZEBRA_FAIL) + return rset_create_null(rset_nmem, kc, 0); + + if (ord < 0) + return rset_create_null(rset_nmem, kc, 0); + 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, + kc, kc->scope, 0, reg_type, 0 /* hits_limit */, + 0 /* term_ref_id_str */); + grep_info_delete(&grep_info); + return rset; +} + +static +ZEBRA_RES rpn_search_xpath(ZebraHandle zh, + int num_bases, char **basenames, + NMEM stream, const char *rank_type, RSET rset, + int xpath_len, struct xpath_location_step *xpath, + NMEM rset_nmem, + RSET *rset_out, + struct rset_key_control *kc) +{ + int base_no; + int i; + int always_matches = rset ? 0 : 1; + + if (xpath_len < 0) + { + *rset_out = rset; + return ZEBRA_OK; + } + + 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])) + { + zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, + basenames[base_no]); + *rset_out = rset; + return ZEBRA_FAIL; + } + while (--level >= 0) + { + WRBUF xpath_rev = wrbuf_alloc(); + int i; + RSET rset_start_tag = 0, rset_end_tag = 0, rset_attr = 0; + + for (i = level; i >= 1; --i) + { + const char *cp = xpath[i].part; + if (*cp) + { + for (; *cp; cp++) + { + if (*cp == '*') + wrbuf_puts(xpath_rev, "[^/]*"); + else if (*cp == ' ') + wrbuf_puts(xpath_rev, "\001 "); + else + wrbuf_putc(xpath_rev, *cp); + + /* wrbuf_putc does not null-terminate , but + wrbuf_puts below ensures it does.. so xpath_rev + is OK iff length is > 0 */ + } + wrbuf_puts(xpath_rev, "/"); + } + else if (i == 1) /* // case */ + wrbuf_puts(xpath_rev, ".*"); + } + 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), ZEBRA_XPATH_ATTR_NAME, + rset_nmem, kc); + wrbuf_free(wbuf, 1); + } + else + { + if (!first_path) + { + wrbuf_free(xpath_rev, 1); + continue; + } + } + yaz_log(log_level_rpn, "xpath_rev (%d) = %.*s", level, + wrbuf_len(xpath_rev), wrbuf_buf(xpath_rev)); + if (wrbuf_len(xpath_rev)) + { + rset_start_tag = xpath_trunc(zh, stream, '0', + wrbuf_buf(xpath_rev), + ZEBRA_XPATH_ELM_BEGIN, + rset_nmem, kc); + if (always_matches) + rset = rset_start_tag; + else + { + rset_end_tag = xpath_trunc(zh, stream, '0', + wrbuf_buf(xpath_rev), + ZEBRA_XPATH_ELM_END, + rset_nmem, kc); + + rset = rset_create_between(rset_nmem, kc, kc->scope, + rset_start_tag, rset, + rset_end_tag, rset_attr); + } + } + wrbuf_free(xpath_rev, 1); + first_path = 0; + } + } + *rset_out = rset; + return ZEBRA_OK; +} + +#define MAX_XPATH_STEPS 10 + +static ZEBRA_RES 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, + RSET *rset, + struct rset_key_control *kc) +{ + ZEBRA_RES res = ZEBRA_OK; + unsigned reg_id; + char *search_type = NULL; + char rank_type[128]; + int complete_flag; + int sort_flag; + char termz[IT_MAX_WORD+1]; + int xpath_len; + const char *xpath_use = 0; + struct xpath_location_step xpath[MAX_XPATH_STEPS]; + + 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) == ZEBRA_FAIL) + return ZEBRA_FAIL; + + if (sort_flag) + return rpn_sort_spec(zh, zapt, attributeSet, stream, sort_sequence, + rank_type, rset_nmem, rset, kc); + /* consider if an X-Path query is used */ + xpath_len = rpn_check_xpath(zh, zapt, attributeSet, + xpath, MAX_XPATH_STEPS, stream); + if (xpath_len >= 0) + { + if (xpath[xpath_len-1].part[0] == '@') + xpath_use = ZEBRA_XPATH_ATTR_CDATA; /* last step is attribute */ + else + xpath_use = ZEBRA_XPATH_CDATA; /* searching for cdata */ + + if (1) + { + AttrType relation; + int relation_value; + + attr_init_APT(&relation, zapt, 2); + relation_value = attr_find(&relation, NULL); + + if (relation_value == 103) /* alwaysmatches */ + { + *rset = 0; /* signal no "term" set */ + return rpn_search_xpath(zh, num_bases, basenames, + stream, rank_type, *rset, + xpath_len, xpath, rset_nmem, rset, kc); + } + } + } + + /* search using one of the various search type strategies + termz is our UTF-8 search term + attributeSet is top-level default attribute set + stream is ODR for search + reg_id is the register type + complete_flag is 1 for complete subfield, 0 for incomplete + xpath_use is use-attribute to be used for X-Path search, 0 for none + */ + if (!strcmp(search_type, "phrase")) + { + res = rpn_search_APT_phrase(zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem, + rset, kc); + } + else if (!strcmp(search_type, "and-list")) + { + res = rpn_search_APT_and_list(zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem, + rset, kc); + } + else if (!strcmp(search_type, "or-list")) + { + res = rpn_search_APT_or_list(zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem, + rset, kc); + } + else if (!strcmp(search_type, "local")) + { + res = rpn_search_APT_local(zh, zapt, termz, attributeSet, stream, + rank_type, rset_nmem, rset, kc); + } + else if (!strcmp(search_type, "numeric")) + { + res = rpn_search_APT_numeric(zh, zapt, termz, attributeSet, stream, + reg_id, complete_flag, rank_type, + xpath_use, + num_bases, basenames, rset_nmem, + rset, kc); + } + else + { + zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); + res = ZEBRA_FAIL; + } + if (res != ZEBRA_OK) + return res; + if (!*rset) + return ZEBRA_FAIL; + return rpn_search_xpath(zh, num_bases, basenames, + stream, rank_type, *rset, + xpath_len, xpath, rset_nmem, rset, kc); +} + +static ZEBRA_RES 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 **result_sets, int *num_result_sets, + Z_Operator *parent_op, + struct rset_key_control *kc); + +ZEBRA_RES rpn_search_top(ZebraHandle zh, Z_RPNStructure *zs, + oid_value attributeSet, + NMEM stream, NMEM rset_nmem, + Z_SortKeySpecList *sort_sequence, + int num_bases, char **basenames, + RSET *result_set) +{ + RSET *result_sets = 0; + int num_result_sets = 0; + ZEBRA_RES res; + struct rset_key_control *kc = zebra_key_control_create(zh); + + res = rpn_search_structure(zh, zs, attributeSet, + stream, rset_nmem, + sort_sequence, + num_bases, basenames, + &result_sets, &num_result_sets, + 0 /* no parent op */, + kc); + if (res != ZEBRA_OK) + { + int i; + for (i = 0; idec)(kc); + return res; +} + +ZEBRA_RES 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 **result_sets, int *num_result_sets, + Z_Operator *parent_op, + struct rset_key_control *kc) +{ + *num_result_sets = 0; + if (zs->which == Z_RPNStructure_complex) + { + ZEBRA_RES res; + Z_Operator *zop = zs->u.complex->roperator; + RSET *result_sets_l = 0; + int num_result_sets_l = 0; + RSET *result_sets_r = 0; + int num_result_sets_r = 0; + + res = rpn_search_structure(zh, zs->u.complex->s1, + attributeSet, stream, rset_nmem, + sort_sequence, + num_bases, basenames, + &result_sets_l, &num_result_sets_l, + zop, kc); + if (res != ZEBRA_OK) + { + int i; + for (i = 0; iu.complex->s2, + attributeSet, stream, rset_nmem, + sort_sequence, + num_bases, basenames, + &result_sets_r, &num_result_sets_r, + zop, kc); + if (res != ZEBRA_OK) + { + int i; + for (i = 0; iwhich != zop->which + || (zop->which != Z_Operator_and && + zop->which != Z_Operator_or)) + { + /* parent node different from this one (or non-present) */ + /* we must combine result sets now */ + RSET rset; + switch (zop->which) + { + case Z_Operator_and: + rset = rset_create_and(rset_nmem, kc, + kc->scope, + *num_result_sets, *result_sets); + break; + case Z_Operator_or: + rset = rset_create_or(rset_nmem, kc, + kc->scope, 0, /* termid */ + *num_result_sets, *result_sets); + break; + case Z_Operator_and_not: + rset = rset_create_not(rset_nmem, kc, + kc->scope, + (*result_sets)[0], + (*result_sets)[1]); + break; + case Z_Operator_prox: + if (zop->u.prox->which != Z_ProximityOperator_known) + { + zebra_setError(zh, + YAZ_BIB1_UNSUPP_PROX_UNIT_CODE, + 0); + return ZEBRA_FAIL; + } + if (*zop->u.prox->u.known != Z_ProxUnit_word) + { + zebra_setError_zint(zh, + YAZ_BIB1_UNSUPP_PROX_UNIT_CODE, + *zop->u.prox->u.known); + return ZEBRA_FAIL; + } + else + { + rset = rset_create_prox(rset_nmem, kc, + kc->scope, + *num_result_sets, *result_sets, + *zop->u.prox->ordered, + (!zop->u.prox->exclusion ? + 0 : *zop->u.prox->exclusion), + *zop->u.prox->relationType, + *zop->u.prox->distance ); + } + break; + default: + zebra_setError(zh, YAZ_BIB1_OPERATOR_UNSUPP, 0); + return ZEBRA_FAIL; + } + *num_result_sets = 1; + *result_sets = nmem_malloc(stream, *num_result_sets * + sizeof(**result_sets)); + (*result_sets)[0] = rset; + } + } + else if (zs->which == Z_RPNStructure_simple) + { + RSET rset; + ZEBRA_RES res; + + if (zs->u.simple->which == Z_Operand_APT) + { + yaz_log(YLOG_DEBUG, "rpn_search_APT"); + res = rpn_search_APT(zh, zs->u.simple->u.attributesPlusTerm, + attributeSet, stream, sort_sequence, + num_bases, basenames, rset_nmem, &rset, + kc); + if (res != ZEBRA_OK) + return res; + } + else if (zs->u.simple->which == Z_Operand_resultSetId) + { + yaz_log(YLOG_DEBUG, "rpn_search_ref"); + rset = resultSetRef(zh, zs->u.simple->u.resultSetId); + if (!rset) + { + zebra_setError(zh, + YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, + zs->u.simple->u.resultSetId); + return ZEBRA_FAIL; + } + rset_dup(rset); + } + else + { + zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); + return ZEBRA_FAIL; + } + *num_result_sets = 1; + *result_sets = nmem_malloc(stream, *num_result_sets * + sizeof(**result_sets)); + (*result_sets)[0] = rset; + } + else + { + zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); + return ZEBRA_FAIL; + } + return ZEBRA_OK; +} + + + +/* + * Local variables: + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + * vim: shiftwidth=4 tabstop=8 expandtab + */ + diff --git a/index/scan.c b/index/scan.c deleted file mode 100644 index 950eb09..0000000 --- a/index/scan.c +++ /dev/null @@ -1,485 +0,0 @@ -/* $Id: scan.c,v 1.1 2006-09-21 08:39:14 adam Exp $ - Copyright (C) 1995-2006 - 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 this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -*/ - -#include -#include -#ifdef WIN32 -#include -#endif -#if HAVE_UNISTD_H -#include -#endif -#include - -#include -#include "index.h" -#include -#include -#include -#include - -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]; -}; - -/* convert APT SCAN term to internal cmap */ -static ZEBRA_RES 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) == ZEBRA_FAIL) - return ZEBRA_FAIL; /* 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 ZEBRA_OK; -} - -static void count_set(ZebraHandle zh, RSET rset, zint *count) -{ - zint psysno = 0; - struct it_key key; - RSFD rfd; - - yaz_log(YLOG_DEBUG, "count_set"); - - rset->hits_limit = zh->approx_limit; - - *count = 0; - rfd = rset_open(rset, RSETF_READ); - while (rset_read(rfd, &key,0 /* never mind terms */)) - { - if (key.mem[0] != psysno) - { - psysno = key.mem[0]; - if (rfd->counted_items >= rset->hits_limit) - break; - } - } - rset_close (rfd); - *count = rset->hits_count; -} - -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; - - /* skip special terms.. of no interest */ - if (name[len_prefix] < 4) - return 1; - - if (idx < 0) - return 0; - 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; -} - - -#define RPN_MAX_ORDS 32 - -ZEBRA_RES 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; - int pos = *position; - int num = *num_entries; - int before; - int after; - int base_no; - char termz[IT_MAX_WORD+20]; - struct scan_info *scan_info_array; - ZebraScanEntry *glist; - int ords[RPN_MAX_ORDS], ord_no = 0; - int ptr[RPN_MAX_ORDS]; - - unsigned index_type; - char *search_type = NULL; - char rank_type[128]; - int complete_flag; - int sort_flag; - NMEM rset_nmem = NULL; - struct rset_key_control *kc = 0; - - *list = 0; - *is_partial = 0; - - if (attributeset == VAL_NONE) - attributeset = VAL_BIB1; - - if (!limit_set) - { - AttrType termset; - int termset_value_numeric; - const char *termset_value_string; - attr_init_APT(&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); - - if (zebra_maps_attr(zh->reg->zebra_maps, zapt, &index_type, &search_type, - rank_type, &complete_flag, &sort_flag)) - { - *num_entries = 0; - zebra_setError(zh, YAZ_BIB1_UNSUPP_ATTRIBUTE_TYPE, 0); - return ZEBRA_FAIL; - } - for (base_no = 0; base_no < num_bases && ord_no < RPN_MAX_ORDS; base_no++) - { - int ord; - - if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) - { - zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, - basenames[base_no]); - *num_entries = 0; - return ZEBRA_FAIL; - } - if (zebra_apt_get_ord(zh, zapt, index_type, 0, attributeset, &ord) - != ZEBRA_OK) - continue; - ords[ord_no++] = ord; - } - if (ord_no == 0) - { - *num_entries = 0; - return ZEBRA_FAIL; - } - /* prepare dictionary scanning */ - if (num < 1) - { - *num_entries = 0; - return ZEBRA_OK; - } - before = pos-1; - if (before < 0) - before = 0; - after = 1+num-pos; - if (after < 0) - after = 0; - yaz_log(YLOG_DEBUG, "rpn_scan pos=%d num=%d before=%d " - "after=%d before+after=%d", - pos, num, before, after, before+after); - 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, index_type, &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] = 0; - strcpy(scan_info->prefix, termz); - - if (trans_scan_term(zh, zapt, termz+prefix_len, index_type) == - ZEBRA_FAIL) - return ZEBRA_FAIL; - - 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(); - kc = zebra_key_control_create(zh); - - /* consider terms after main term */ - for (i = 0; i < ord_no; i++) - ptr[i] = before; - - *is_partial = 0; - for (i = 0; i= 0 && - (tst = scan_info_array[j].list[ptr[j]].term) && - (!mterm || strcmp (tst, mterm) < 0)) - { - j0 = j; - mterm = tst; - } - } - if (j0 == -1) - break; /* no value found, stop */ - - /* get result set for first one , but only if it's within bounds */ - if (lo >= 0) - { - /* get result set for first term */ - zebra_term_untrans_iconv(zh, stream->mem, index_type, - &glist[lo].term, mterm); - rset = rset_trunc(zh, &scan_info_array[j0].list[ptr[j0]].isam_p, 1, - glist[lo].term, strlen(glist[lo].term), - NULL, 0, zapt->term->which, rset_nmem, - kc, kc->scope, 0, index_type, 0 /* hits_limit */, - 0 /* term_ref_id_str */); - } - ptr[j0]++; /* move index for this set .. */ - /* get result set for remaining scan terms */ - for (j = j0+1; j= 0 && - (tst = scan_info_array[j].list[ptr[j]].term) && - !strcmp (tst, mterm)) - { - if (lo >= 0) - { - RSET rsets[2]; - - rsets[0] = rset; - rsets[1] = - rset_trunc( - zh, &scan_info_array[j].list[ptr[j]].isam_p, 1, - glist[lo].term, - strlen(glist[lo].term), NULL, 0, - zapt->term->which,rset_nmem, - kc, kc->scope, 0, index_type, 0 /* hits_limit */, - 0 /* term_ref_id_str */ ); - rset = rset_create_or(rset_nmem, kc, - kc->scope, 0 /* termid */, - 2, rsets); - } - ptr[j]++; - } - } - if (lo >= 0) - { - zint count; - /* merge with limit_set if given */ - if (limit_set) - { - RSET rsets[2]; - rsets[0] = rset; - rsets[1] = rset_dup(limit_set); - - rset = rset_create_and(rset_nmem, kc, kc->scope, 2, rsets); - } - /* count it */ - count_set(zh, rset, &count); - glist[lo].occurrences = count; - rset_delete(rset); - } - } - if (i < after) - { - *num_entries -= (after-i); - *is_partial = 1; - if (*num_entries < 0) - { - (*kc->dec)(kc); - nmem_destroy(rset_nmem); - *num_entries = 0; - return ZEBRA_OK; - } - } - /* consider terms before main term */ - for (i = 0; i= 0 && - (tst = scan_info_array[j].list[before-1-ptr[j]].term) && - (!mterm || strcmp (tst, mterm) > 0)) - { - j0 = j; - mterm = tst; - } - } - if (j0 == -1) - break; - - zebra_term_untrans_iconv(zh, stream->mem, index_type, - &glist[lo].term, mterm); - - rset = rset_trunc - (zh, &scan_info_array[j0].list[before-1-ptr[j0]].isam_p, 1, - glist[lo].term, strlen(glist[lo].term), - NULL, 0, zapt->term->which, rset_nmem, - kc, kc->scope, 0, index_type, 0 /* hits_limit */, - 0 /* term_ref_id_str */); - - ptr[j0]++; - - for (j = j0+1; j= 0 && - (tst = scan_info_array[j].list[before-1-ptr[j]].term) && - !strcmp (tst, mterm)) - { - RSET rsets[2]; - - rsets[0] = rset; - rsets[1] = rset_trunc( - zh, - &scan_info_array[j].list[before-1-ptr[j]].isam_p, 1, - glist[lo].term, - strlen(glist[lo].term), NULL, 0, - zapt->term->which, rset_nmem, - kc, kc->scope, 0, index_type, 0 /* hits_limit */, - 0 /* term_ref_id_str */); - rset = rset_create_or(rset_nmem, kc, - kc->scope, 0 /* termid */, 2, rsets); - - ptr[j]++; - } - } - if (limit_set) - { - RSET rsets[2]; - rsets[0] = rset; - rsets[1] = rset_dup(limit_set); - - rset = rset_create_and(rset_nmem, kc, kc->scope, 2, rsets); - } - count_set(zh, rset, &count); - glist[lo].occurrences = count; - rset_delete (rset); - } - (*kc->dec)(kc); - nmem_destroy(rset_nmem); - i = before-i; - if (i) - { - *is_partial = 1; - *position -= i; - *num_entries -= i; - if (*num_entries <= 0) - { - *num_entries = 0; - return ZEBRA_OK; - } - } - - *list = glist + i; /* list is set to first 'real' entry */ - - yaz_log(YLOG_DEBUG, "position = %d, num_entries = %d", - *position, *num_entries); - return ZEBRA_OK; -} - -/* - * Local variables: - * c-basic-offset: 4 - * indent-tabs-mode: nil - * End: - * vim: shiftwidth=4 tabstop=8 expandtab - */ - diff --git a/index/search.c b/index/search.c deleted file mode 100644 index 441cf23..0000000 --- a/index/search.c +++ /dev/null @@ -1,2523 +0,0 @@ -/* $Id: search.c,v 1.1 2006-09-21 08:39:14 adam Exp $ - Copyright (C) 1995-2006 - 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 this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -*/ - -#include -#include -#ifdef WIN32 -#include -#endif -#if HAVE_UNISTD_H -#include -#endif -#include - -#include -#include "index.h" -#include -#include -#include -#include - -static int log_level_set = 0; -static int log_level_rpn = 0; - -#define TERMSET_DISABLE 1 - -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; -} - -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); -} - -#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 add_isam_p(const char *name, const char *info, - struct grep_info *p) -{ - if (!log_level_set) - { - log_level_rpn = yaz_log_module_level("rpn"); - log_level_set = 1; - } - if (p->isam_p_indx == p->isam_p_size) - { - ISAM_P *new_isam_p_buf; -#ifdef TERM_COUNT - int *new_term_no; -#endif - p->isam_p_size = 2*p->isam_p_size + 100; - new_isam_p_buf = (ISAM_P *) xmalloc(sizeof(*new_isam_p_buf) * - p->isam_p_size); - if (p->isam_p_buf) - { - memcpy(new_isam_p_buf, p->isam_p_buf, - p->isam_p_indx * sizeof(*p->isam_p_buf)); - xfree(p->isam_p_buf); - } - p->isam_p_buf = new_isam_p_buf; - -#ifdef TERM_COUNT - new_term_no = (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); - } - p->term_no = new_term_no; -#endif - } - assert(*info == sizeof(*p->isam_p_buf)); - memcpy(p->isam_p_buf + p->isam_p_indx, info+1, sizeof(*p->isam_p_buf)); - - if (p->termset) - { - const char *db; - char term_tmp[IT_MAX_WORD]; - int ord = 0; - const char *index_name; - int len = key_SU_decode (&ord, (const unsigned char *) name); - - zebra_term_untrans (p->zh, p->reg_type, term_tmp, name+len); - yaz_log(log_level_rpn, "grep: %d %c %s", ord, name[len], term_tmp); - zebraExplain_lookup_ord(p->zh->reg->zei, - ord, 0 /* index_type */, &db, &index_name); - yaz_log(log_level_rpn, "grep: db=%s index=%s", db, index_name); - - resultSetAddTerm(p->zh, p->termset, name[len], db, - index_name, term_tmp); - } - (p->isam_p_indx)++; -} - -static int grep_handle(char *name, const char *info, void *p) -{ - add_isam_p(name, info, (struct grep_info *) p); - return 0; -} - -static int term_pre(ZebraMaps zebra_maps, int reg_type, const char **src, - const char *ct1, const char *ct2, int first) -{ - 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 = zebra_maps_input(zebra_maps, reg_type, &s1, strlen(s1), first); - if (**map != *CHR_SPACE) - break; - s0 = s1; - } - *src = s0; - return *s0; -} - - -static void esc_str(char *out_buf, size_t out_size, - const char *in_buf, int in_size) -{ - int k; - - 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; - } - } -} - -#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) -{ - const char *s0; - const char **map; - int i = 0; - int j = 0; - - const char *space_start = 0; - const char *space_end = 0; - - if (!term_pre(zebra_maps, reg_type, src, NULL, NULL, !space_split)) - return 0; - s0 = *src; - while (*s0) - { - 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]); - } - } - 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 (*s0 == '#') - { - dst[i++] = '.'; - dst[i++] = '*'; - dst_term[j++] = *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]); - } - } - } - dst[i] = '\0'; - dst_term[j++] = '\0'; - *src = s0; - return i; -} - -/* 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) -{ - int i = 0; - int j = 0; - const char *s0; - const char **map; - - 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])) - { - *errors = s0[1] - '0'; - s0 += 3; - if (*errors > 3) - *errors = 3; - } - while (*s0) - { - 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]); - } - } - } - dst[i] = '\0'; - dst_term[j] = '\0'; - *src = s0; - - return i; -} - -/* 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) -{ - return term_103(zebra_maps, reg_type, src, dst, NULL, space_split, - dst_term); -} - - -/* 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; - 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 (*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 - { - 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]); - } - } - } - dst[i] = '\0'; - dst_term[j++] = '\0'; - *src = s0; - return i; -} - -/* 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) -{ - 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 (*s0 == '*') - { - dst[i++] = '.'; - dst[i++] = '*'; - dst_term[j++] = *s0++; - } - else if (*s0 == '!') - { - dst[i++] = '.'; - dst_term[j++] = *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]); - } - } - } - if (right_truncate) - { - dst[i++] = '.'; - dst[i++] = '*'; - } - dst[i] = '\0'; - - dst_term[j++] = '\0'; - *src = s0; - return i; -} - - -/* gen_regular_rel - generate regular expression from relation - * val: border value (inclusive) - * islt: 1 if <=; 0 if >=. - */ -static void gen_regular_rel(char *dst, int val, int islt) -{ - int dst_p; - int w, d, i; - int pos = 0; - char numstr[20]; - - 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) - { - strcpy(dst, "([0-9]+|-("); - dst_p = strlen(dst); - islt = 1; - } - else - { - strcpy(dst, "(-("); - islt = 0; - } - val = -val; - } - dst_p = strlen(dst); - sprintf(numstr, "%d", val); - for (w = strlen(numstr); --w >= 0; pos++) - { - d = numstr[w]; - if (pos > 0) - { - if (islt) - { - if (d == '0') - continue; - d--; - } - else - { - if (d == '9') - continue; - d++; - } - } - - strcpy(dst + dst_p, numstr); - dst_p = strlen(dst) - pos - 1; - - if (islt) - { - if (d != '0') - { - dst[dst_p++] = '['; - dst[dst_p++] = '0'; - dst[dst_p++] = '-'; - dst[dst_p++] = d; - dst[dst_p++] = ']'; - } - else - dst[dst_p++] = d; - } - else - { - if (d != '9') - { - dst[dst_p++] = '['; - dst[dst_p++] = d; - dst[dst_p++] = '-'; - dst[dst_p++] = '9'; - dst[dst_p++] = ']'; - } - else - dst[dst_p++] = d; - } - for (i = 0; i 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, - int *error_code) -{ - AttrType relation; - int relation_value; - int i; - char *term_tmp = term_dict + strlen(term_dict); - char term_component[2*IT_MAX_WORD+20]; - - attr_init_APT(&relation, zapt, 2); - relation_value = attr_find(&relation, NULL); - - *error_code = 0; - 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; - - if (i) - *term_tmp++ = '|'; - 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++ = '*'; - - 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: - case 102: - case -1: - if (!**term_sub) - return 1; - 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, ")"); - break; - case 103: - yaz_log(log_level_rpn, "Relation always matches"); - /* skip to end of term (we don't care what it is) */ - while (**term_sub != '\0') - (*term_sub)++; - break; - default: - *error_code = YAZ_BIB1_UNSUPP_RELATION_ATTRIBUTE; - return 0; - } - return 1; -} - -static ZEBRA_RES 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, - const char *xpath_use, - struct ord_list **ol); - -static ZEBRA_RES term_limits_APT(ZebraHandle zh, - Z_AttributesPlusTerm *zapt, - zint *hits_limit_value, - const char **term_ref_id_str, - NMEM nmem) -{ - AttrType term_ref_id_attr; - AttrType hits_limit_attr; - int term_ref_id_int; - - attr_init_APT(&hits_limit_attr, zapt, 11); - *hits_limit_value = attr_find(&hits_limit_attr, NULL); - - attr_init_APT(&term_ref_id_attr, zapt, 10); - term_ref_id_int = attr_find_ex(&term_ref_id_attr, NULL, term_ref_id_str); - if (term_ref_id_int >= 0) - { - char *res = nmem_malloc(nmem, 20); - sprintf(res, "%d", term_ref_id_int); - *term_ref_id_str = res; - } - - /* no limit given ? */ - if (*hits_limit_value == -1) - { - if (*term_ref_id_str) - { - /* use global if term_ref is present */ - *hits_limit_value = zh->approx_limit; - } - else - { - /* no counting if term_ref is not present */ - *hits_limit_value = 0; - } - } - else if (*hits_limit_value == 0) - { - /* 0 is the same as global limit */ - *hits_limit_value = zh->approx_limit; - } - yaz_log(YLOG_DEBUG, "term_limits_APT ref_id=%s limit=" ZINT_FORMAT, - *term_ref_id_str ? *term_ref_id_str : "none", - *hits_limit_value); - return ZEBRA_OK; -} - -static ZEBRA_RES 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, - const char *xpath_use, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - ZEBRA_RES res; - struct ord_list *ol; - zint hits_limit_value; - const char *term_ref_id_str = 0; - *rset = 0; - - term_limits_APT(zh, zapt, &hits_limit_value, &term_ref_id_str, stream); - grep_info->isam_p_indx = 0; - res = string_term(zh, zapt, term_sub, attributeSet, stream, grep_info, - reg_type, complete_flag, num_bases, basenames, - term_dst, xpath_use, &ol); - if (res != ZEBRA_OK) - return res; - if (!*term_sub) /* no more terms ? */ - return res; - yaz_log(log_level_rpn, "term: %s", term_dst); - *rset = 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, - kc, kc->scope, ol, reg_type, hits_limit_value, - term_ref_id_str); - if (!*rset) - return ZEBRA_FAIL; - return ZEBRA_OK; -} - -static ZEBRA_RES 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, - const char *xpath_use, - struct ord_list **ol) -{ - char term_dict[2*IT_MAX_WORD+4000]; - int j, r, base_no; - AttrType truncation; - int truncation_value; - 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 */ - - *ol = ord_list_create(stream); - - rpn_char_map_prepare (zh->reg, reg_type, &rcmi); - attr_init_APT(&truncation, zapt, 5); - truncation_value = attr_find(&truncation, NULL); - yaz_log(log_level_rpn, "truncation value %d", truncation_value); - - for (base_no = 0; base_no < num_bases; base_no++) - { - int ord = -1; - int regex_range = 0; - int max_pos, prefix_len = 0; - int relation_error; - char ord_buf[32]; - int ord_len, i; - - termp = *term_sub; /* start of term for each database */ - - if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) - { - zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, - basenames[base_no]); - return ZEBRA_FAIL; - } - - if (zebra_apt_get_ord(zh, zapt, reg_type, xpath_use, - attributeSet, &ord) != ZEBRA_OK) - continue; - - bases_ok++; - - *ol = ord_list_append(stream, *ol, ord); - ord_len = key_SU_encode (ord, ord_buf); - - term_dict[prefix_len++] = '('; - for (i = 0; ireg->zebra_maps, reg_type, - &termp, term_dict + j, space_split, term_dst)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - strcat(term_dict, ")"); - break; - case 103: /* Regexp-2 */ - regex_range = 1; - term_dict[j++] = '('; - if (!term_103(zh->reg->zebra_maps, reg_type, - &termp, term_dict + j, ®ex_range, - space_split, term_dst)) - { - *term_sub = 0; - return ZEBRA_OK; - } - strcat(term_dict, ")"); - break; - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - 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)) - { - *term_sub = 0; - return ZEBRA_OK; - } - strcat(term_dict, ")"); - break; - default: - zebra_setError_zint(zh, - YAZ_BIB1_UNSUPP_TRUNCATION_ATTRIBUTE, - truncation_value); - return ZEBRA_FAIL; - } - if (1) - { - char buf[80]; - const char *input = term_dict + prefix_len; - esc_str(buf, sizeof(buf), input, strlen(input)); - } - 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, - ord_len /* number of "exact" chars */, - grep_handle); - if (r) - yaz_log(YLOG_WARN, "dict_lookup_grep fail %d", r); - } - if (!bases_ok) - return ZEBRA_FAIL; - *term_sub = termp; - yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); - return ZEBRA_OK; -} - - - -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 ZEBRA_RES grep_info_prepare(ZebraHandle zh, - Z_AttributesPlusTerm *zapt, - struct grep_info *grep_info, - int reg_type) -{ - 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 ZEBRA_OK; - attr_init_APT(&termset, zapt, 8); - termset_value_numeric = - attr_find_ex(&termset, NULL, &termset_value_string); - if (termset_value_numeric != -1) - { -#if TERMSET_DISABLE - zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, "termset"); - return ZEBRA_FAIL; -#else - 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) - { - zebra_setError(zh, YAZ_BIB1_ILLEGAL_RESULT_SET_NAME, termset_name); - return ZEBRA_FAIL; - } -#endif - } - return ZEBRA_OK; -} - -/** - \brief Create result set(s) for list of terms - \param zh Zebra Handle - \param zapt Attributes Plust Term (RPN leaf) - \param termz term as used in query but converted to UTF-8 - \param attributeSet default attribute set - \param stream memory for result - \param reg_type register type ('w', 'p',..) - \param complete_flag whether it's phrases or not - \param rank_type term flags for ranking - \param xpath_use use attribute for X-Path (-1 for no X-path) - \param num_bases number of databases - \param basenames array of databases - \param rset_nmem memory for result sets - \param result_sets output result set for each term in list (output) - \param num_result_sets number of output result sets - \param kc rset key control to be used for created result sets -*/ -static ZEBRA_RES term_list_trunc(ZebraHandle zh, - Z_AttributesPlusTerm *zapt, - const char *termz, - oid_value attributeSet, - NMEM stream, - int reg_type, int complete_flag, - const char *rank_type, - const char *xpath_use, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET **result_sets, int *num_result_sets, - struct rset_key_control *kc) -{ - char term_dst[IT_MAX_WORD+1]; - struct grep_info grep_info; - const char *termp = termz; - int alloc_sets = 0; - - *num_result_sets = 0; - *term_dst = 0; - if (grep_info_prepare(zh, zapt, &grep_info, reg_type) == ZEBRA_FAIL) - return ZEBRA_FAIL; - while(1) - { - ZEBRA_RES res; - - if (alloc_sets == *num_result_sets) - { - int add = 10; - RSET *rnew = (RSET *) nmem_malloc(stream, (alloc_sets+add) * - sizeof(*rnew)); - if (alloc_sets) - memcpy(rnew, *result_sets, alloc_sets * sizeof(*rnew)); - alloc_sets = alloc_sets + add; - *result_sets = rnew; - } - res = term_trunc(zh, zapt, &termp, attributeSet, - stream, &grep_info, - reg_type, complete_flag, - num_bases, basenames, - term_dst, rank_type, - xpath_use, rset_nmem, - &(*result_sets)[*num_result_sets], - kc); - if (res != ZEBRA_OK) - { - int i; - for (i = 0; i < *num_result_sets; i++) - rset_delete((*result_sets)[i]); - grep_info_delete (&grep_info); - return res; - } - if ((*result_sets)[*num_result_sets] == 0) - break; - (*num_result_sets)++; - - if (!*termp) - break; - } - grep_info_delete(&grep_info); - return ZEBRA_OK; -} - -static ZEBRA_RES rpn_search_APT_position(ZebraHandle zh, - Z_AttributesPlusTerm *zapt, - oid_value attributeSet, - int reg_type, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - RSET *f_set; - int base_no; - int position_value; - int num_sets = 0; - AttrType position; - - attr_init_APT(&position, zapt, 3); - position_value = attr_find(&position, NULL); - switch(position_value) - { - case 3: - case -1: - return ZEBRA_OK; - case 1: - case 2: - break; - default: - zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, - position_value); - return ZEBRA_FAIL; - } - - if (!zebra_maps_is_first_in_field(zh->reg->zebra_maps, reg_type)) - { - zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, - position_value); - return ZEBRA_FAIL; - } - - if (!zh->reg->isamb && !zh->reg->isamc) - { - zebra_setError_zint(zh, YAZ_BIB1_UNSUPP_POSITION_ATTRIBUTE, - position_value); - return ZEBRA_FAIL; - } - f_set = xmalloc(sizeof(RSET) * num_bases); - for (base_no = 0; base_no < num_bases; base_no++) - { - int ord = -1; - char ord_buf[32]; - char term_dict[100]; - int ord_len; - char *val; - ISAM_P isam_p; - - if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) - { - zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, - basenames[base_no]); - return ZEBRA_FAIL; - } - - if (zebra_apt_get_ord(zh, zapt, reg_type, 0, - attributeSet, &ord) != ZEBRA_OK) - continue; - - ord_len = key_SU_encode (ord, ord_buf); - memcpy(term_dict, ord_buf, ord_len); - strcpy(term_dict+ord_len, FIRST_IN_FIELD_STR); - val = dict_lookup(zh->reg->dict, term_dict); - if (!val) - continue; - assert(*val == sizeof(ISAM_P)); - memcpy(&isam_p, val+1, sizeof(isam_p)); - - - if (zh->reg->isamb) - f_set[num_sets++] = rsisamb_create(rset_nmem, kc, kc->scope, - zh->reg->isamb, isam_p, 0); - else if (zh->reg->isamc) - f_set[num_sets++] = rsisamc_create(rset_nmem, kc, kc->scope, - zh->reg->isamc, isam_p, 0); - } - if (num_sets) - { - *rset = rset_create_or(rset_nmem, kc, kc->scope, - 0 /* termid */, num_sets, f_set); - } - xfree(f_set); - return ZEBRA_OK; -} - -static ZEBRA_RES 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, - const char *xpath_use, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - RSET *result_sets = 0; - int num_result_sets = 0; - ZEBRA_RES res = - term_list_trunc(zh, zapt, termz_org, attributeSet, - stream, reg_type, complete_flag, - rank_type, xpath_use, - num_bases, basenames, - rset_nmem, - &result_sets, &num_result_sets, kc); - - if (res != ZEBRA_OK) - return res; - - if (num_result_sets > 0) - { - RSET first_set = 0; - res = rpn_search_APT_position(zh, zapt, attributeSet, - reg_type, - num_bases, basenames, - rset_nmem, &first_set, - kc); - if (res != ZEBRA_OK) - return res; - if (first_set) - { - RSET *nsets = nmem_malloc(stream, - sizeof(RSET) * (num_result_sets+1)); - nsets[0] = first_set; - memcpy(nsets+1, result_sets, sizeof(RSET) * num_result_sets); - result_sets = nsets; - num_result_sets++; - } - } - if (num_result_sets == 0) - *rset = rset_create_null(rset_nmem, kc, 0); - else if (num_result_sets == 1) - *rset = result_sets[0]; - else - *rset = rset_create_prox(rset_nmem, kc, kc->scope, - num_result_sets, result_sets, - 1 /* ordered */, 0 /* exclusion */, - 3 /* relation */, 1 /* distance */); - if (!*rset) - return ZEBRA_FAIL; - return ZEBRA_OK; -} - -static ZEBRA_RES 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, - const char *xpath_use, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - RSET *result_sets = 0; - int num_result_sets = 0; - int i; - ZEBRA_RES res = - term_list_trunc(zh, zapt, termz_org, attributeSet, - stream, reg_type, complete_flag, - rank_type, xpath_use, - num_bases, basenames, - rset_nmem, - &result_sets, &num_result_sets, kc); - if (res != ZEBRA_OK) - return res; - - for (i = 0; iscope, - 2, tmp_set, - 1 /* ordered */, 0 /* exclusion */, - 3 /* relation */, 1 /* distance */); - } - } - if (num_result_sets == 0) - *rset = rset_create_null(rset_nmem, kc, 0); - else if (num_result_sets == 1) - *rset = result_sets[0]; - else - *rset = rset_create_or(rset_nmem, kc, kc->scope, 0 /* termid */, - num_result_sets, result_sets); - if (!*rset) - return ZEBRA_FAIL; - return ZEBRA_OK; -} - -static ZEBRA_RES 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, - const char *xpath_use, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - RSET *result_sets = 0; - int num_result_sets = 0; - int i; - ZEBRA_RES res = - term_list_trunc(zh, zapt, termz_org, attributeSet, - stream, reg_type, complete_flag, - rank_type, xpath_use, - num_bases, basenames, - rset_nmem, - &result_sets, &num_result_sets, - kc); - if (res != ZEBRA_OK) - return res; - for (i = 0; iscope, - 2, tmp_set, - 1 /* ordered */, 0 /* exclusion */, - 3 /* relation */, 1 /* distance */); - } - } - - - if (num_result_sets == 0) - *rset = rset_create_null(rset_nmem, kc, 0); - else if (num_result_sets == 1) - *rset = result_sets[0]; - else - *rset = rset_create_and(rset_nmem, kc, kc->scope, - num_result_sets, result_sets); - if (!*rset) - return ZEBRA_FAIL; - return ZEBRA_OK; -} - -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, - int *error_code) -{ - AttrType relation; - int relation_value; - int term_value; - int r; - char *term_tmp = term_dict + strlen(term_dict); - - *error_code = 0; - attr_init_APT(&relation, zapt, 2); - relation_value = attr_find(&relation, NULL); - - yaz_log(log_level_rpn, "numeric relation value=%d", relation_value); - - switch (relation_value) - { - case 1: - yaz_log(log_level_rpn, "Relation <"); - if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, - term_dst)) - return 0; - term_value = atoi (term_tmp); - gen_regular_rel(term_tmp, term_value-1, 1); - break; - case 2: - yaz_log(log_level_rpn, "Relation <="); - if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, - term_dst)) - return 0; - term_value = atoi (term_tmp); - gen_regular_rel(term_tmp, term_value, 1); - break; - case 4: - yaz_log(log_level_rpn, "Relation >="); - if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, - term_dst)) - return 0; - term_value = atoi (term_tmp); - gen_regular_rel(term_tmp, term_value, 0); - break; - case 5: - yaz_log(log_level_rpn, "Relation >"); - if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, - term_dst)) - return 0; - term_value = atoi (term_tmp); - gen_regular_rel(term_tmp, term_value+1, 0); - break; - case -1: - case 3: - yaz_log(log_level_rpn, "Relation ="); - if (!term_100(zh->reg->zebra_maps, reg_type, term_sub, term_tmp, 1, - term_dst)) - return 0; - term_value = atoi (term_tmp); - sprintf(term_tmp, "(0*%d)", term_value); - break; - case 103: - /* term_tmp untouched.. */ - while (**term_sub != '\0') - (*term_sub)++; - break; - default: - *error_code = YAZ_BIB1_UNSUPP_RELATION_ATTRIBUTE; - return 0; - } - 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 ZEBRA_RES numeric_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, - const char *xpath_use, - struct ord_list **ol) -{ - char term_dict[2*IT_MAX_WORD+2]; - int base_no; - const char *termp; - struct rpn_char_map_info rcmi; - - int bases_ok = 0; /* no of databases with OK attribute */ - - *ol = ord_list_create(stream); - - rpn_char_map_prepare (zh->reg, reg_type, &rcmi); - - for (base_no = 0; base_no < num_bases; base_no++) - { - int max_pos, prefix_len = 0; - int relation_error = 0; - int ord, ord_len, i; - char ord_buf[32]; - - termp = *term_sub; - - if (zebraExplain_curDatabase (zh->reg->zei, basenames[base_no])) - { - zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, - basenames[base_no]); - return ZEBRA_FAIL; - } - - if (zebra_apt_get_ord(zh, zapt, reg_type, xpath_use, - attributeSet, &ord) != ZEBRA_OK) - continue; - bases_ok++; - - *ol = ord_list_append(stream, *ol, ord); - - ord_len = key_SU_encode (ord, ord_buf); - - term_dict[prefix_len++] = '('; - for (i = 0; i < ord_len; i++) - { - term_dict[prefix_len++] = 1; - term_dict[prefix_len++] = ord_buf[i]; - } - term_dict[prefix_len++] = ')'; - term_dict[prefix_len] = '\0'; - - if (!numeric_relation(zh, zapt, &termp, term_dict, - attributeSet, grep_info, &max_pos, reg_type, - term_dst, &relation_error)) - { - if (relation_error) - { - zebra_setError(zh, relation_error, 0); - return ZEBRA_FAIL; - } - *term_sub = 0; - return ZEBRA_OK; - } - } - if (!bases_ok) - return ZEBRA_FAIL; - *term_sub = termp; - yaz_log(YLOG_DEBUG, "%d positions", grep_info->isam_p_indx); - return ZEBRA_OK; -} - - -static ZEBRA_RES 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, - const char *xpath_use, - int num_bases, char **basenames, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - char term_dst[IT_MAX_WORD+1]; - const char *termp = termz; - RSET *result_sets = 0; - int num_result_sets = 0; - ZEBRA_RES res; - struct grep_info grep_info; - int alloc_sets = 0; - zint hits_limit_value; - const char *term_ref_id_str = 0; - - term_limits_APT(zh, zapt, &hits_limit_value, &term_ref_id_str, stream); - - yaz_log(log_level_rpn, "APT_numeric t='%s'", termz); - if (grep_info_prepare(zh, zapt, &grep_info, reg_type) == ZEBRA_FAIL) - return ZEBRA_FAIL; - while (1) - { - struct ord_list *ol; - if (alloc_sets == num_result_sets) - { - int add = 10; - RSET *rnew = (RSET *) nmem_malloc(stream, (alloc_sets+add) * - sizeof(*rnew)); - if (alloc_sets) - memcpy(rnew, result_sets, alloc_sets * sizeof(*rnew)); - alloc_sets = alloc_sets + add; - result_sets = rnew; - } - yaz_log(YLOG_DEBUG, "APT_numeric termp=%s", termp); - grep_info.isam_p_indx = 0; - res = numeric_term(zh, zapt, &termp, attributeSet, stream, &grep_info, - reg_type, complete_flag, num_bases, basenames, - term_dst, xpath_use, &ol); - if (res == ZEBRA_FAIL || termp == 0) - break; - yaz_log(YLOG_DEBUG, "term: %s", term_dst); - result_sets[num_result_sets] = - 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, - kc, kc->scope, ol, reg_type, - hits_limit_value, - term_ref_id_str); - if (!result_sets[num_result_sets]) - break; - num_result_sets++; - if (!*termp) - break; - } - grep_info_delete(&grep_info); - - if (res != ZEBRA_OK) - return res; - if (num_result_sets == 0) - *rset = rset_create_null(rset_nmem, kc, 0); - else if (num_result_sets == 1) - *rset = result_sets[0]; - else - *rset = rset_create_and(rset_nmem, kc, kc->scope, - num_result_sets, result_sets); - if (!*rset) - return ZEBRA_FAIL; - return ZEBRA_OK; -} - -static ZEBRA_RES 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 *rset, - struct rset_key_control *kc) -{ - RSFD rsfd; - struct it_key key; - int sys; - *rset = rset_create_temp(rset_nmem, kc, kc->scope, - res_get (zh->res, "setTmpDir"),0 ); - rsfd = rset_open(*rset, 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 ZEBRA_OK; -} - -static ZEBRA_RES rpn_sort_spec(ZebraHandle zh, Z_AttributesPlusTerm *zapt, - oid_value attributeSet, NMEM stream, - Z_SortKeySpecList *sort_sequence, - const char *rank_type, - NMEM rset_nmem, - RSET *rset, - struct rset_key_control *kc) -{ - int i; - int sort_relation_value; - AttrType sort_relation_type; - Z_SortKeySpec *sks; - Z_SortKey *sk; - int oid[OID_SIZE]; - oident oe; - char termz[20]; - - attr_init_APT(&sort_relation_type, zapt, 7); - sort_relation_value = attr_find(&sort_relation_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 ZEBRA_FAIL; - - 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 = zapt->attributes; - - 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; - *rset = rset_create_null(rset_nmem, kc, 0); - return ZEBRA_OK; -} - - -static int rpn_check_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_APT(&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, - const char *xpath_use, - NMEM rset_nmem, - struct rset_key_control *kc) -{ - RSET rset; - struct grep_info grep_info; - char term_dict[2048]; - char ord_buf[32]; - int prefix_len = 0; - int ord = zebraExplain_lookup_attr_str(zh->reg->zei, - zinfo_index_category_index, - reg_type, - xpath_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') == ZEBRA_FAIL) - return rset_create_null(rset_nmem, kc, 0); - - if (ord < 0) - return rset_create_null(rset_nmem, kc, 0); - 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, - kc, kc->scope, 0, reg_type, 0 /* hits_limit */, - 0 /* term_ref_id_str */); - grep_info_delete(&grep_info); - return rset; -} - -static -ZEBRA_RES rpn_search_xpath(ZebraHandle zh, - int num_bases, char **basenames, - NMEM stream, const char *rank_type, RSET rset, - int xpath_len, struct xpath_location_step *xpath, - NMEM rset_nmem, - RSET *rset_out, - struct rset_key_control *kc) -{ - int base_no; - int i; - int always_matches = rset ? 0 : 1; - - if (xpath_len < 0) - { - *rset_out = rset; - return ZEBRA_OK; - } - - 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])) - { - zebra_setError(zh, YAZ_BIB1_DATABASE_UNAVAILABLE, - basenames[base_no]); - *rset_out = rset; - return ZEBRA_FAIL; - } - while (--level >= 0) - { - WRBUF xpath_rev = wrbuf_alloc(); - int i; - RSET rset_start_tag = 0, rset_end_tag = 0, rset_attr = 0; - - for (i = level; i >= 1; --i) - { - const char *cp = xpath[i].part; - if (*cp) - { - for (; *cp; cp++) - { - if (*cp == '*') - wrbuf_puts(xpath_rev, "[^/]*"); - else if (*cp == ' ') - wrbuf_puts(xpath_rev, "\001 "); - else - wrbuf_putc(xpath_rev, *cp); - - /* wrbuf_putc does not null-terminate , but - wrbuf_puts below ensures it does.. so xpath_rev - is OK iff length is > 0 */ - } - wrbuf_puts(xpath_rev, "/"); - } - else if (i == 1) /* // case */ - wrbuf_puts(xpath_rev, ".*"); - } - 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), ZEBRA_XPATH_ATTR_NAME, - rset_nmem, kc); - wrbuf_free(wbuf, 1); - } - else - { - if (!first_path) - { - wrbuf_free(xpath_rev, 1); - continue; - } - } - yaz_log(log_level_rpn, "xpath_rev (%d) = %.*s", level, - wrbuf_len(xpath_rev), wrbuf_buf(xpath_rev)); - if (wrbuf_len(xpath_rev)) - { - rset_start_tag = xpath_trunc(zh, stream, '0', - wrbuf_buf(xpath_rev), - ZEBRA_XPATH_ELM_BEGIN, - rset_nmem, kc); - if (always_matches) - rset = rset_start_tag; - else - { - rset_end_tag = xpath_trunc(zh, stream, '0', - wrbuf_buf(xpath_rev), - ZEBRA_XPATH_ELM_END, - rset_nmem, kc); - - rset = rset_create_between(rset_nmem, kc, kc->scope, - rset_start_tag, rset, - rset_end_tag, rset_attr); - } - } - wrbuf_free(xpath_rev, 1); - first_path = 0; - } - } - *rset_out = rset; - return ZEBRA_OK; -} - -#define MAX_XPATH_STEPS 10 - -static ZEBRA_RES 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, - RSET *rset, - struct rset_key_control *kc) -{ - ZEBRA_RES res = ZEBRA_OK; - unsigned reg_id; - char *search_type = NULL; - char rank_type[128]; - int complete_flag; - int sort_flag; - char termz[IT_MAX_WORD+1]; - int xpath_len; - const char *xpath_use = 0; - struct xpath_location_step xpath[MAX_XPATH_STEPS]; - - 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) == ZEBRA_FAIL) - return ZEBRA_FAIL; - - if (sort_flag) - return rpn_sort_spec(zh, zapt, attributeSet, stream, sort_sequence, - rank_type, rset_nmem, rset, kc); - /* consider if an X-Path query is used */ - xpath_len = rpn_check_xpath(zh, zapt, attributeSet, - xpath, MAX_XPATH_STEPS, stream); - if (xpath_len >= 0) - { - if (xpath[xpath_len-1].part[0] == '@') - xpath_use = ZEBRA_XPATH_ATTR_CDATA; /* last step is attribute */ - else - xpath_use = ZEBRA_XPATH_CDATA; /* searching for cdata */ - - if (1) - { - AttrType relation; - int relation_value; - - attr_init_APT(&relation, zapt, 2); - relation_value = attr_find(&relation, NULL); - - if (relation_value == 103) /* alwaysmatches */ - { - *rset = 0; /* signal no "term" set */ - return rpn_search_xpath(zh, num_bases, basenames, - stream, rank_type, *rset, - xpath_len, xpath, rset_nmem, rset, kc); - } - } - } - - /* search using one of the various search type strategies - termz is our UTF-8 search term - attributeSet is top-level default attribute set - stream is ODR for search - reg_id is the register type - complete_flag is 1 for complete subfield, 0 for incomplete - xpath_use is use-attribute to be used for X-Path search, 0 for none - */ - if (!strcmp(search_type, "phrase")) - { - res = rpn_search_APT_phrase(zh, zapt, termz, attributeSet, stream, - reg_id, complete_flag, rank_type, - xpath_use, - num_bases, basenames, rset_nmem, - rset, kc); - } - else if (!strcmp(search_type, "and-list")) - { - res = rpn_search_APT_and_list(zh, zapt, termz, attributeSet, stream, - reg_id, complete_flag, rank_type, - xpath_use, - num_bases, basenames, rset_nmem, - rset, kc); - } - else if (!strcmp(search_type, "or-list")) - { - res = rpn_search_APT_or_list(zh, zapt, termz, attributeSet, stream, - reg_id, complete_flag, rank_type, - xpath_use, - num_bases, basenames, rset_nmem, - rset, kc); - } - else if (!strcmp(search_type, "local")) - { - res = rpn_search_APT_local(zh, zapt, termz, attributeSet, stream, - rank_type, rset_nmem, rset, kc); - } - else if (!strcmp(search_type, "numeric")) - { - res = rpn_search_APT_numeric(zh, zapt, termz, attributeSet, stream, - reg_id, complete_flag, rank_type, - xpath_use, - num_bases, basenames, rset_nmem, - rset, kc); - } - else - { - zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); - res = ZEBRA_FAIL; - } - if (res != ZEBRA_OK) - return res; - if (!*rset) - return ZEBRA_FAIL; - return rpn_search_xpath(zh, num_bases, basenames, - stream, rank_type, *rset, - xpath_len, xpath, rset_nmem, rset, kc); -} - -static ZEBRA_RES 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 **result_sets, int *num_result_sets, - Z_Operator *parent_op, - struct rset_key_control *kc); - -ZEBRA_RES rpn_search_top(ZebraHandle zh, Z_RPNStructure *zs, - oid_value attributeSet, - NMEM stream, NMEM rset_nmem, - Z_SortKeySpecList *sort_sequence, - int num_bases, char **basenames, - RSET *result_set) -{ - RSET *result_sets = 0; - int num_result_sets = 0; - ZEBRA_RES res; - struct rset_key_control *kc = zebra_key_control_create(zh); - - res = rpn_search_structure(zh, zs, attributeSet, - stream, rset_nmem, - sort_sequence, - num_bases, basenames, - &result_sets, &num_result_sets, - 0 /* no parent op */, - kc); - if (res != ZEBRA_OK) - { - int i; - for (i = 0; idec)(kc); - return res; -} - -ZEBRA_RES 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 **result_sets, int *num_result_sets, - Z_Operator *parent_op, - struct rset_key_control *kc) -{ - *num_result_sets = 0; - if (zs->which == Z_RPNStructure_complex) - { - ZEBRA_RES res; - Z_Operator *zop = zs->u.complex->roperator; - RSET *result_sets_l = 0; - int num_result_sets_l = 0; - RSET *result_sets_r = 0; - int num_result_sets_r = 0; - - res = rpn_search_structure(zh, zs->u.complex->s1, - attributeSet, stream, rset_nmem, - sort_sequence, - num_bases, basenames, - &result_sets_l, &num_result_sets_l, - zop, kc); - if (res != ZEBRA_OK) - { - int i; - for (i = 0; iu.complex->s2, - attributeSet, stream, rset_nmem, - sort_sequence, - num_bases, basenames, - &result_sets_r, &num_result_sets_r, - zop, kc); - if (res != ZEBRA_OK) - { - int i; - for (i = 0; iwhich != zop->which - || (zop->which != Z_Operator_and && - zop->which != Z_Operator_or)) - { - /* parent node different from this one (or non-present) */ - /* we must combine result sets now */ - RSET rset; - switch (zop->which) - { - case Z_Operator_and: - rset = rset_create_and(rset_nmem, kc, - kc->scope, - *num_result_sets, *result_sets); - break; - case Z_Operator_or: - rset = rset_create_or(rset_nmem, kc, - kc->scope, 0, /* termid */ - *num_result_sets, *result_sets); - break; - case Z_Operator_and_not: - rset = rset_create_not(rset_nmem, kc, - kc->scope, - (*result_sets)[0], - (*result_sets)[1]); - break; - case Z_Operator_prox: - if (zop->u.prox->which != Z_ProximityOperator_known) - { - zebra_setError(zh, - YAZ_BIB1_UNSUPP_PROX_UNIT_CODE, - 0); - return ZEBRA_FAIL; - } - if (*zop->u.prox->u.known != Z_ProxUnit_word) - { - zebra_setError_zint(zh, - YAZ_BIB1_UNSUPP_PROX_UNIT_CODE, - *zop->u.prox->u.known); - return ZEBRA_FAIL; - } - else - { - rset = rset_create_prox(rset_nmem, kc, - kc->scope, - *num_result_sets, *result_sets, - *zop->u.prox->ordered, - (!zop->u.prox->exclusion ? - 0 : *zop->u.prox->exclusion), - *zop->u.prox->relationType, - *zop->u.prox->distance ); - } - break; - default: - zebra_setError(zh, YAZ_BIB1_OPERATOR_UNSUPP, 0); - return ZEBRA_FAIL; - } - *num_result_sets = 1; - *result_sets = nmem_malloc(stream, *num_result_sets * - sizeof(**result_sets)); - (*result_sets)[0] = rset; - } - } - else if (zs->which == Z_RPNStructure_simple) - { - RSET rset; - ZEBRA_RES res; - - if (zs->u.simple->which == Z_Operand_APT) - { - yaz_log(YLOG_DEBUG, "rpn_search_APT"); - res = rpn_search_APT(zh, zs->u.simple->u.attributesPlusTerm, - attributeSet, stream, sort_sequence, - num_bases, basenames, rset_nmem, &rset, - kc); - if (res != ZEBRA_OK) - return res; - } - else if (zs->u.simple->which == Z_Operand_resultSetId) - { - yaz_log(YLOG_DEBUG, "rpn_search_ref"); - rset = resultSetRef(zh, zs->u.simple->u.resultSetId); - if (!rset) - { - zebra_setError(zh, - YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, - zs->u.simple->u.resultSetId); - return ZEBRA_FAIL; - } - rset_dup(rset); - } - else - { - zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); - return ZEBRA_FAIL; - } - *num_result_sets = 1; - *result_sets = nmem_malloc(stream, *num_result_sets * - sizeof(**result_sets)); - (*result_sets)[0] = rset; - } - else - { - zebra_setError(zh, YAZ_BIB1_UNSUPP_SEARCH, 0); - return ZEBRA_FAIL; - } - return ZEBRA_OK; -} - - - -/* - * Local variables: - * c-basic-offset: 4 - * indent-tabs-mode: nil - * End: - * vim: shiftwidth=4 tabstop=8 expandtab - */ -