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