2 * Copyright (C) 1994-1997, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.22 1997-10-27 14:33:04 adam
8 * Moved towards generic character mapping depending on "structure"
9 * field in abstract syntax file. Fixed a few memory leaks. Fixed
10 * bug with negative integers when doing searches with relational
13 * Revision 1.21 1997/09/18 08:59:19 adam
14 * Extra generic handle for the character mapping routines.
16 * Revision 1.20 1997/09/17 12:19:10 adam
17 * Zebra version corresponds to YAZ version 1.4.
18 * Changed Zebra server so that it doesn't depend on global common_resource.
20 * Revision 1.19 1997/09/05 15:30:02 adam
21 * Changed prototype for chr_map_input - added const.
22 * Added support for C++, headers uses extern "C" for public definitions.
24 * Revision 1.18 1997/09/04 13:56:15 adam
25 * Added new filter grs.marc.<syntax> where <syntax> refers to
26 * abstract syntax. New method tellf in extract/retrieve control
29 * Revision 1.17 1997/04/30 08:56:04 quinn
32 * Revision 1.16 1996/10/11 10:56:25 adam
33 * New module recctrl. Used to manage records (extract/retrieval).
34 * All record types are accessed by means of definitions in recctrl.h.
36 * Revision 1.15 1996/06/06 12:08:16 quinn
37 * Added showRecord Group entry
39 * Revision 1.14 1996/05/09 07:28:49 quinn
40 * Work towards phrases and multiple registers
42 * Revision 1.13 1996/05/01 13:44:05 adam
43 * Added seek function to the recExtractCtrl and recRetrieveCtrl control
44 * structures. Added end-of-file indicator function and start offset to
47 * Revision 1.12 1996/01/17 15:01:25 adam
48 * Prototype changed for reader functions in extract/retrieve. File
49 * is identified by 'void *' instead of 'int'.
51 * Revision 1.11 1995/12/04 14:20:54 adam
52 * Extra arg to recType_byName.
54 * Revision 1.10 1995/10/16 14:03:06 quinn
55 * Changes to support element set names and espec1
57 * Revision 1.9 1995/10/06 14:37:53 adam
58 * New result set method: r_score.
59 * Local no (sysno) and score is transferred to retrieveCtrl.
61 * Revision 1.8 1995/10/02 15:43:35 adam
62 * Extract uses file descriptors instead of FILE pointers.
64 * Revision 1.7 1995/10/02 15:18:09 adam
67 * Revision 1.6 1995/10/02 15:05:26 quinn
70 * Revision 1.5 1995/10/02 14:55:52 quinn
71 * *** empty log message ***
73 * Revision 1.4 1995/09/27 16:17:29 adam
74 * More work on retrieve.
76 * Revision 1.3 1995/09/27 12:21:25 adam
77 * New function: recType_byName.
79 * Revision 1.2 1995/09/15 14:45:03 adam
82 * Revision 1.1 1995/09/14 07:48:13 adam
83 * Record control management.
101 /* single word entity */
110 /* Extract record control */
111 struct recExtractCtrl {
112 void *fh; /* File handle and read function */
113 int (*readf)(void *fh, char *buf, size_t count);
114 off_t (*seekf)(void *fh, off_t offset); /* seek function */
115 off_t (*tellf)(void *fh); /* tell function */
116 void (*endf)(void *fh, off_t offset); /* end of record position */
117 off_t offset; /* start offset */
119 void (*init)(RecWord *p);
120 void (*add)(const RecWord *p);
121 ZebraMaps zebra_maps;
126 /* Retrieve record control */
127 struct recRetrieveCtrl {
128 /* Input parameters ... */
129 ODR odr; /* ODR used to create response */
130 void *fh; /* File descriptor and read function */
131 int (*readf)(void *fh, char *buf, size_t count);
132 off_t (*seekf)(void *fh, off_t offset);
133 off_t (*tellf)(void *fh);
134 oid_value input_format; /* Preferred record syntax */
135 Z_RecordComposition *comp; /* formatting instructions */
136 int localno; /* local id of record */
137 int score; /* score 0-1000 or -1 if none */
142 oid_value output_format;
149 typedef struct recType
151 char *name; /* Name of record type */
152 void (*init)(void); /* Init function - called once */
153 int (*extract)(struct recExtractCtrl *ctrl); /* Extract proc */
154 int (*retrieve)(struct recRetrieveCtrl *ctrl); /* Retrieve proc */
157 RecType recType_byName (const char *name, char *subType);