2 * Copyright (C) 1994-1998, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.27 1998-10-16 08:14:28 adam
8 * Updated record control system.
10 * Revision 1.26 1998/05/20 10:12:12 adam
11 * Implemented automatic EXPLAIN database maintenance.
12 * Modified Zebra to work with ASN.1 compiled version of YAZ.
14 * Revision 1.25 1998/03/11 11:19:04 adam
15 * Changed the way sequence numbers are generated.
17 * Revision 1.24 1998/03/05 08:38:46 adam
18 * New member recordSize in recRetrieveCtrl.
20 * Revision 1.23 1998/02/10 12:03:05 adam
23 * Revision 1.22 1997/10/27 14:33:04 adam
24 * Moved towards generic character mapping depending on "structure"
25 * field in abstract syntax file. Fixed a few memory leaks. Fixed
26 * bug with negative integers when doing searches with relational
29 * Revision 1.21 1997/09/18 08:59:19 adam
30 * Extra generic handle for the character mapping routines.
32 * Revision 1.20 1997/09/17 12:19:10 adam
33 * Zebra version corresponds to YAZ version 1.4.
34 * Changed Zebra server so that it doesn't depend on global common_resource.
36 * Revision 1.19 1997/09/05 15:30:02 adam
37 * Changed prototype for chr_map_input - added const.
38 * Added support for C++, headers uses extern "C" for public definitions.
40 * Revision 1.18 1997/09/04 13:56:15 adam
41 * Added new filter grs.marc.<syntax> where <syntax> refers to
42 * abstract syntax. New method tellf in extract/retrieve control
45 * Revision 1.17 1997/04/30 08:56:04 quinn
48 * Revision 1.16 1996/10/11 10:56:25 adam
49 * New module recctrl. Used to manage records (extract/retrieval).
50 * All record types are accessed by means of definitions in recctrl.h.
52 * Revision 1.15 1996/06/06 12:08:16 quinn
53 * Added showRecord Group entry
55 * Revision 1.14 1996/05/09 07:28:49 quinn
56 * Work towards phrases and multiple registers
58 * Revision 1.13 1996/05/01 13:44:05 adam
59 * Added seek function to the recExtractCtrl and recRetrieveCtrl control
60 * structures. Added end-of-file indicator function and start offset to
63 * Revision 1.12 1996/01/17 15:01:25 adam
64 * Prototype changed for reader functions in extract/retrieve. File
65 * is identified by 'void *' instead of 'int'.
67 * Revision 1.11 1995/12/04 14:20:54 adam
68 * Extra arg to recType_byName.
70 * Revision 1.10 1995/10/16 14:03:06 quinn
71 * Changes to support element set names and espec1
73 * Revision 1.9 1995/10/06 14:37:53 adam
74 * New result set method: r_score.
75 * Local no (sysno) and score is transferred to retrieveCtrl.
77 * Revision 1.8 1995/10/02 15:43:35 adam
78 * Extract uses file descriptors instead of FILE pointers.
80 * Revision 1.7 1995/10/02 15:18:09 adam
83 * Revision 1.6 1995/10/02 15:05:26 quinn
86 * Revision 1.5 1995/10/02 14:55:52 quinn
87 * *** empty log message ***
89 * Revision 1.4 1995/09/27 16:17:29 adam
90 * More work on retrieve.
92 * Revision 1.3 1995/09/27 12:21:25 adam
93 * New function: recType_byName.
95 * Revision 1.2 1995/09/15 14:45:03 adam
98 * Revision 1.1 1995/09/14 07:48:13 adam
99 * Record control management.
110 #include <zebramap.h>
116 /* single word entity */
124 ZebraMaps zebra_maps;
127 /* Extract record control */
128 struct recExtractCtrl {
129 void *fh; /* File handle and read function */
130 int (*readf)(void *fh, char *buf, size_t count);
131 off_t (*seekf)(void *fh, off_t offset); /* seek function */
132 off_t (*tellf)(void *fh); /* tell function */
133 void (*endf)(void *fh, off_t offset); /* end of record position */
134 off_t offset; /* start offset */
136 void (*init)(struct recExtractCtrl *p, RecWord *w);
137 void (*addWord)(RecWord *p);
138 ZebraMaps zebra_maps;
141 void (*addSchema)(struct recExtractCtrl *p, Odr_oid *oid);
145 /* Retrieve record control */
146 struct recRetrieveCtrl {
147 /* Input parameters ... */
148 ODR odr; /* ODR used to create response */
149 void *fh; /* File descriptor and read function */
150 int (*readf)(void *fh, char *buf, size_t count);
151 off_t (*seekf)(void *fh, off_t offset);
152 off_t (*tellf)(void *fh);
153 oid_value input_format; /* Preferred record syntax */
154 Z_RecordComposition *comp; /* formatting instructions */
155 int localno; /* local id of record */
156 int score; /* score 0-1000 or -1 if none */
157 int recordSize; /* size of record in bytes */
162 oid_value output_format;
169 typedef struct recType *RecType;
173 char *name; /* Name of record type */
174 void (*init)(RecType recType); /* Init function - called once */
175 void (*destroy)(RecType recType); /* Destroy function */
176 int (*extract)(struct recExtractCtrl *ctrl); /* Extract proc */
177 int (*retrieve)(struct recRetrieveCtrl *ctrl); /* Retrieve proc */
178 void *clientData; /* data handle */
181 typedef struct recTypes *RecTypes;
183 RecTypes recTypes_init (data1_handle dh);
184 void recTypes_destroy (RecTypes recTypes);
185 void recTypes_default_handlers (RecTypes recTypes);
187 RecType recType_byName (RecTypes rts, const char *name, char *subType);
189 int grs_extract_tree(struct recExtractCtrl *p, data1_node *n);