-## $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 \
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
--- /dev/null
+/* $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 <stdio.h>
+#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <ctype.h>
+
+#include <yaz/diagbib1.h>
+#include "index.h"
+#include <zebra_xpath.h>
+#include <attrfind.h>
+#include <charmap.h>
+#include <rset.h>
+
+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; j<before+after; j++)
+ scan_info->list[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<after; i++)
+ {
+ int j, j0 = -1;
+ const char *mterm = NULL;
+ const char *tst;
+ RSET rset = 0;
+ int lo = i + pos-1; /* offset in result list */
+
+ /* find: j0 is the first of the minimal values */
+ for (j = 0; j < ord_no; j++)
+ {
+ if (ptr[j] < before+after && ptr[j] >= 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<ord_no; j++)
+ {
+ if (ptr[j] < before+after && ptr[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<ord_no; i++)
+ ptr[i] = 0;
+
+ for (i = 0; i<before; i++)
+ {
+ int j, j0 = -1;
+ const char *mterm = NULL;
+ const char *tst;
+ RSET rset;
+ int lo = before-1-i; /* offset in result list */
+ zint count;
+
+ for (j = 0; j <ord_no; j++)
+ {
+ if (ptr[j] < before && ptr[j] >= 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<ord_no; j++)
+ {
+ if (ptr[j] < before && ptr[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
+ */
+
--- /dev/null
+/* $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 <stdio.h>
+#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <ctype.h>
+
+#include <yaz/diagbib1.h>
+#include "index.h"
+#include <zebra_xpath.h>
+#include <attrfind.h>
+#include <charmap.h>
+#include <rset.h>
+
+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<in_size; k++)
+ {
+ int c = in_buf[k] & 0xff;
+ int pc;
+ if (c < 32 || c > 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<pos; i++)
+ {
+ dst[dst_p++] = '[';
+ dst[dst_p++] = '0';
+ dst[dst_p++] = '-';
+ dst[dst_p++] = '9';
+ dst[dst_p++] = ']';
+ }
+ dst[dst_p++] = '|';
+ }
+ dst[dst_p] = '\0';
+ if (islt)
+ {
+ /* match everything less than 10^(pos-1) */
+ strcat(dst, "0*");
+ for (i = 1; i<pos; i++)
+ strcat(dst, "[0-9]?");
+ }
+ else
+ {
+ /* match everything greater than 10^pos */
+ for (i = 0; i <= pos; i++)
+ strcat(dst, "[0-9]");
+ strcat(dst, "[0-9]*");
+ }
+ strcat(dst, "))");
+}
+
+void string_rel_add_char(char **term_p, const char *src, int *indx)
+{
+ if (src[*indx] == '\\')
+ *(*term_p)++ = src[(*indx)++];
+ *(*term_p)++ = src[(*indx)++];
+}
+
+/*
+ * > 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; i<ord_len; i++)
+ {
+ term_dict[prefix_len++] = 1; /* our internal regexp escape char */
+ term_dict[prefix_len++] = ord_buf[i];
+ }
+ term_dict[prefix_len++] = ')';
+ term_dict[prefix_len] = '\0';
+ j = prefix_len;
+ switch (truncation_value)
+ {
+ case -1: /* not specified */
+ case 100: /* do not truncate */
+ if (!string_relation(zh, zapt, &termp, term_dict,
+ attributeSet,
+ reg_type, space_split, term_dst,
+ &relation_error))
+ {
+ if (relation_error)
+ {
+ zebra_setError(zh, relation_error, 0);
+ return ZEBRA_FAIL;
+ }
+ *term_sub = 0;
+ return ZEBRA_OK;
+ }
+ break;
+ case 1: /* right truncation */
+ 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 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; i<num_result_sets; i++)
+ {
+ 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)
+ {
+ for (i = 0; i<num_result_sets; i++)
+ rset_delete(result_sets[i]);
+ return res;
+ }
+
+ if (first_set)
+ {
+ RSET tmp_set[2];
+
+ tmp_set[0] = first_set;
+ tmp_set[1] = result_sets[i];
+
+ result_sets[i] = rset_create_prox(
+ rset_nmem, kc, kc->scope,
+ 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; i<num_result_sets; i++)
+ {
+ 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)
+ {
+ for (i = 0; i<num_result_sets; i++)
+ rset_delete(result_sets[i]);
+ return res;
+ }
+
+ if (first_set)
+ {
+ RSET tmp_set[2];
+
+ tmp_set[0] = first_set;
+ tmp_set[1] = result_sets[i];
+
+ result_sets[i] = rset_create_prox(
+ rset_nmem, kc, kc->scope,
+ 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; i<sort_sequence->num_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; i<ord_len; i++)
+ {
+ term_dict[prefix_len++] = 1;
+ term_dict[prefix_len++] = ord_buf[i];
+ }
+ term_dict[prefix_len++] = ')';
+ strcpy(term_dict+prefix_len, term);
+
+ grep_info.isam_p_indx = 0;
+ r = dict_lookup_grep(zh->reg->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<xpath_len; i++)
+ {
+ yaz_log(log_level_rpn, "XPATH %d %s", i, xpath[i].part);
+
+ }
+
+ /*
+ //a -> 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; i<num_result_sets; i++)
+ rset_delete(result_sets[i]);
+ *result_set = 0;
+ }
+ else
+ {
+ assert(num_result_sets == 1);
+ assert(result_sets);
+ assert(*result_sets);
+ *result_set = *result_sets;
+ }
+ (*kc->dec)(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; i<num_result_sets_l; i++)
+ rset_delete(result_sets_l[i]);
+ return res;
+ }
+ res = rpn_search_structure(zh, zs->u.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; i<num_result_sets_l; i++)
+ rset_delete(result_sets_l[i]);
+ for (i = 0; i<num_result_sets_r; i++)
+ rset_delete(result_sets_r[i]);
+ return res;
+ }
+
+ /* make a new list of result for all children */
+ *num_result_sets = num_result_sets_l + num_result_sets_r;
+ *result_sets = nmem_malloc(stream, *num_result_sets *
+ sizeof(**result_sets));
+ memcpy(*result_sets, result_sets_l,
+ num_result_sets_l * sizeof(**result_sets));
+ memcpy(*result_sets + num_result_sets_l, result_sets_r,
+ num_result_sets_r * sizeof(**result_sets));
+
+ if (!parent_op || parent_op->which != 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
+ */
+
+++ /dev/null
-/* $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 <stdio.h>
-#include <assert.h>
-#ifdef WIN32
-#include <io.h>
-#endif
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <ctype.h>
-
-#include <yaz/diagbib1.h>
-#include "index.h"
-#include <zebra_xpath.h>
-#include <attrfind.h>
-#include <charmap.h>
-#include <rset.h>
-
-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; j<before+after; j++)
- scan_info->list[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<after; i++)
- {
- int j, j0 = -1;
- const char *mterm = NULL;
- const char *tst;
- RSET rset = 0;
- int lo = i + pos-1; /* offset in result list */
-
- /* find: j0 is the first of the minimal values */
- for (j = 0; j < ord_no; j++)
- {
- if (ptr[j] < before+after && ptr[j] >= 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<ord_no; j++)
- {
- if (ptr[j] < before+after && ptr[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<ord_no; i++)
- ptr[i] = 0;
-
- for (i = 0; i<before; i++)
- {
- int j, j0 = -1;
- const char *mterm = NULL;
- const char *tst;
- RSET rset;
- int lo = before-1-i; /* offset in result list */
- zint count;
-
- for (j = 0; j <ord_no; j++)
- {
- if (ptr[j] < before && ptr[j] >= 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<ord_no; j++)
- {
- if (ptr[j] < before && ptr[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
- */
-
+++ /dev/null
-/* $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 <stdio.h>
-#include <assert.h>
-#ifdef WIN32
-#include <io.h>
-#endif
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <ctype.h>
-
-#include <yaz/diagbib1.h>
-#include "index.h"
-#include <zebra_xpath.h>
-#include <attrfind.h>
-#include <charmap.h>
-#include <rset.h>
-
-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<in_size; k++)
- {
- int c = in_buf[k] & 0xff;
- int pc;
- if (c < 32 || c > 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<pos; i++)
- {
- dst[dst_p++] = '[';
- dst[dst_p++] = '0';
- dst[dst_p++] = '-';
- dst[dst_p++] = '9';
- dst[dst_p++] = ']';
- }
- dst[dst_p++] = '|';
- }
- dst[dst_p] = '\0';
- if (islt)
- {
- /* match everything less than 10^(pos-1) */
- strcat(dst, "0*");
- for (i = 1; i<pos; i++)
- strcat(dst, "[0-9]?");
- }
- else
- {
- /* match everything greater than 10^pos */
- for (i = 0; i <= pos; i++)
- strcat(dst, "[0-9]");
- strcat(dst, "[0-9]*");
- }
- strcat(dst, "))");
-}
-
-void string_rel_add_char(char **term_p, const char *src, int *indx)
-{
- if (src[*indx] == '\\')
- *(*term_p)++ = src[(*indx)++];
- *(*term_p)++ = src[(*indx)++];
-}
-
-/*
- * > 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; i<ord_len; i++)
- {
- term_dict[prefix_len++] = 1; /* our internal regexp escape char */
- term_dict[prefix_len++] = ord_buf[i];
- }
- term_dict[prefix_len++] = ')';
- term_dict[prefix_len] = '\0';
- j = prefix_len;
- switch (truncation_value)
- {
- case -1: /* not specified */
- case 100: /* do not truncate */
- if (!string_relation(zh, zapt, &termp, term_dict,
- attributeSet,
- reg_type, space_split, term_dst,
- &relation_error))
- {
- if (relation_error)
- {
- zebra_setError(zh, relation_error, 0);
- return ZEBRA_FAIL;
- }
- *term_sub = 0;
- return ZEBRA_OK;
- }
- break;
- case 1: /* right truncation */
- 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 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; i<num_result_sets; i++)
- {
- 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)
- {
- for (i = 0; i<num_result_sets; i++)
- rset_delete(result_sets[i]);
- return res;
- }
-
- if (first_set)
- {
- RSET tmp_set[2];
-
- tmp_set[0] = first_set;
- tmp_set[1] = result_sets[i];
-
- result_sets[i] = rset_create_prox(
- rset_nmem, kc, kc->scope,
- 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; i<num_result_sets; i++)
- {
- 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)
- {
- for (i = 0; i<num_result_sets; i++)
- rset_delete(result_sets[i]);
- return res;
- }
-
- if (first_set)
- {
- RSET tmp_set[2];
-
- tmp_set[0] = first_set;
- tmp_set[1] = result_sets[i];
-
- result_sets[i] = rset_create_prox(
- rset_nmem, kc, kc->scope,
- 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; i<sort_sequence->num_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; i<ord_len; i++)
- {
- term_dict[prefix_len++] = 1;
- term_dict[prefix_len++] = ord_buf[i];
- }
- term_dict[prefix_len++] = ')';
- strcpy(term_dict+prefix_len, term);
-
- grep_info.isam_p_indx = 0;
- r = dict_lookup_grep(zh->reg->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<xpath_len; i++)
- {
- yaz_log(log_level_rpn, "XPATH %d %s", i, xpath[i].part);
-
- }
-
- /*
- //a -> 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; i<num_result_sets; i++)
- rset_delete(result_sets[i]);
- *result_set = 0;
- }
- else
- {
- assert(num_result_sets == 1);
- assert(result_sets);
- assert(*result_sets);
- *result_set = *result_sets;
- }
- (*kc->dec)(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; i<num_result_sets_l; i++)
- rset_delete(result_sets_l[i]);
- return res;
- }
- res = rpn_search_structure(zh, zs->u.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; i<num_result_sets_l; i++)
- rset_delete(result_sets_l[i]);
- for (i = 0; i<num_result_sets_r; i++)
- rset_delete(result_sets_r[i]);
- return res;
- }
-
- /* make a new list of result for all children */
- *num_result_sets = num_result_sets_l + num_result_sets_r;
- *result_sets = nmem_malloc(stream, *num_result_sets *
- sizeof(**result_sets));
- memcpy(*result_sets, result_sets_l,
- num_result_sets_l * sizeof(**result_sets));
- memcpy(*result_sets + num_result_sets_l, result_sets_r,
- num_result_sets_r * sizeof(**result_sets));
-
- if (!parent_op || parent_op->which != 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
- */
-
projects / idzebra-moved-to-github.git / commitdiff