X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=dict%2Flookup.c;h=d47267f23631cd25c4ec90aade2da7ab98c3375d;hp=c16ac03ece628908324db86ad1a3b95e59f0b058;hb=27bdd6aa26843aeac89f635ed495996088d8e8aa;hpb=3db15cf883ad80b6a4b0e960f3c3b59c86b59c6b diff --git a/dict/lookup.c b/dict/lookup.c index c16ac03..d47267f 100644 --- a/dict/lookup.c +++ b/dict/lookup.c @@ -1,56 +1,46 @@ -/* - * Copyright (C) 1994-1998, Index Data I/S - * All rights reserved. - * Sebastian Hammer, Adam Dickmeiss - * - * $Log: lookup.c,v $ - * Revision 1.8 1998-03-05 08:17:24 adam - * Added a few comments - no code changed. - * - * Revision 1.7 1996/02/02 13:43:51 adam - * The public functions simply use char instead of Dict_char to represent - * search strings. Dict_char is used internally only. - * - * Revision 1.6 1995/12/11 09:04:50 adam - * Bug fix: the lookup/scan/lookgrep didn't handle empty dictionary. - * - * Revision 1.5 1995/09/04 09:09:15 adam - * String arg in lookup is const. - * - * Revision 1.4 1994/10/05 12:16:51 adam - * Pagesize is a resource now. - * - * Revision 1.3 1994/09/26 10:17:25 adam - * Minor changes. - * - * Revision 1.2 1994/09/16 15:39:14 adam - * Initial code of lookup - not tested yet. - * - * Revision 1.1 1994/08/16 16:26:48 adam - * Added dict. - * - */ +/* This file is part of the Zebra server. + Copyright (C) 2004-2013 Index Data + +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 + +*/ + + +#if HAVE_CONFIG_H +#include +#endif #include #include #include #include -#include +#include "dict-p.h" -static char *dict_look (Dict dict, const Dict_char *str) +static char *dict_look(Dict dict, const Dict_char *str, Dict_ptr ptr) { - Dict_ptr ptr = 1; int mid, lo, hi; int cmp; void *p; short *indxp; char *info; - dict_bf_readp (dict->dbf, ptr, &p); + dict_bf_readp(dict->dbf, ptr, &p); mid = lo = 0; hi = DICT_nodir(p)-1; - indxp = (short*) ((char*) p+DICT_pagesize(dict)-sizeof(short)); + indxp = (short*) ((char*) p+DICT_bsize(p)-sizeof(short)); while (lo <= hi) { mid = (lo+hi)/2; @@ -75,11 +65,11 @@ static char *dict_look (Dict dict, const Dict_char *str) /* unsigned char length of information */ /* char * information */ info = (char*)p - indxp[-mid]; - memcpy (&dc, info+sizeof(Dict_ptr), sizeof(Dict_char)); + memcpy(&dc, info+sizeof(Dict_ptr), sizeof(Dict_char)); cmp = dc- *str; if (!cmp) { - memcpy (&subptr, info, sizeof(Dict_ptr)); + memcpy(&subptr, info, sizeof(Dict_ptr)); if (*++str == DICT_EOS) { if (info[sizeof(Dict_ptr)+sizeof(Dict_char)]) @@ -91,11 +81,10 @@ static char *dict_look (Dict dict, const Dict_char *str) if (subptr == 0) return NULL; ptr = subptr; - dict_bf_readp (dict->dbf, ptr, &p); + dict_bf_readp(dict->dbf, ptr, &p); mid = lo = 0; hi = DICT_nodir(p)-1; - indxp = (short*) ((char*) p+DICT_pagesize(dict) - -sizeof(short)); + indxp = (short*) ((char*) p+DICT_bsize(p)-sizeof(short)); continue; } } @@ -108,11 +97,19 @@ static char *dict_look (Dict dict, const Dict_char *str) return NULL; } -char *dict_lookup (Dict dict, const char *p) +char *dict_lookup(Dict dict, const char *p) { - if (dict->head.last <= 1) + dict->no_lookup++; + if (!dict->head.root) return NULL; - return dict_look (dict, (const Dict_char *) p); + return dict_look(dict, (const Dict_char *) p, dict->head.root); } - +/* + * Local variables: + * c-basic-offset: 4 + * c-file-style: "Stroustrup" + * indent-tabs-mode: nil + * End: + * vim: shiftwidth=4 tabstop=8 expandtab + */