| 1 | /**************************************************************************
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| 2 | *
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| 3 | * invf_get.h -- Inverted file reading routines
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| 4 | * Copyright (C) 1994 Neil Sharman
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 2 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | *
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| 20 | * $Id: invf_get.h 23508 2010-12-17 01:04:10Z sjm84 $
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| 21 | *
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| 22 | **************************************************************************/
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| 23 |
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| 24 |
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| 25 | #ifndef H_INVF_GET
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| 26 | #define H_INVF_GET
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| 27 |
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| 28 | typedef struct Invf_Doc_Entry
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| 29 | {
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| 30 | int DocNum;
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| 31 | float Sum;
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| 32 | }
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| 33 | Invf_Doc_Entry;
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| 34 |
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| 35 | typedef struct Invf_Doc_Entry_Pool
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| 36 | {
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| 37 | void *pool;
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| 38 | unsigned pool_chunks;
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| 39 | }
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| 40 | Invf_Doc_Entry_Pool;
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| 41 |
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| 42 | typedef struct Invf_Doc_EntryH
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| 43 | {
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| 44 | Invf_Doc_Entry IDE;
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| 45 | struct Invf_Doc_EntryH *next;
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| 46 | }
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| 47 | Invf_Doc_EntryH;
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| 48 |
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| 49 | typedef struct Hash_Table
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| 50 | {
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| 51 | Invf_Doc_EntryH *Suplimentary_Entries;
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| 52 | int Suplimentary_Size;
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| 53 | int Suplimentary_Num;
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| 54 | unsigned max;
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| 55 | unsigned num;
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| 56 | unsigned size;
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| 57 | Invf_Doc_EntryH **HashTable;
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| 58 | Invf_Doc_EntryH *Head;
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| 59 | Invf_Doc_EntryH IDEH[1];
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| 60 | }
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| 61 | Hash_Table;
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| 62 |
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| 63 | typedef struct List_Table
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| 64 | {
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| 65 | unsigned max;
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| 66 | unsigned num;
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| 67 | Invf_Doc_Entry IDE[1];
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| 68 | }
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| 69 | List_Table;
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| 70 |
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| 71 | typedef enum
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| 72 | {
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| 73 | op_term, op_and_terms, op_and_or_terms, op_diff_terms
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| 74 | }
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| 75 | Op_types;
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| 76 |
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| 77 | /*Invf_Doc_Entry *HT_find(Hash_Table *HT, mg_u_long DN); */
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| 78 | void HT_free (query_data * qd, Hash_Table * HT);
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| 79 | void LT_free (query_data * qd, List_Table * LT);
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| 80 |
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| 81 | invf_data *InitInvfFile (File * InvfFile, stemmed_dict * sd);
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| 82 | void FreeInvfData (invf_data * id);
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| 83 |
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| 84 | DocList *GetDocs (query_data * qd, WordEntry * we, BooleanQueryInfo * bqi);
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| 85 |
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| 86 | float *CosineDecode (query_data * qd, TermList * Terms, RankedQueryInfo * rqi);
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| 87 |
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| 88 | void free_ide_pool (query_data * qd, Invf_Doc_Entry_Pool * pool);
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| 89 |
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| 90 | Splay_Tree *CosineDecodeSplay (query_data * qd, TermList * Terms,
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| 91 | RankedQueryInfo * rqi, Invf_Doc_Entry_Pool * pool);
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| 92 |
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| 93 | Hash_Table *CosineDecodeHash (query_data * qd, TermList * Terms,
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| 94 | RankedQueryInfo * rqi);
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| 95 | List_Table *CosineDecodeList (query_data * qd, TermList * Terms,
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| 96 | RankedQueryInfo * rqi);
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| 97 |
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| 98 |
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| 99 | DocList *GetDocsOp (query_data * qd, WordEntry * we, Op_types op, DocList * L);
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| 100 |
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| 101 |
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| 102 |
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| 103 | #endif
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