2 * Copyright (C) 1994-1997, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.23 1998-02-10 12:03:05 adam
10 * Revision 1.22 1997/10/27 14:33:04 adam
11 * Moved towards generic character mapping depending on "structure"
12 * field in abstract syntax file. Fixed a few memory leaks. Fixed
13 * bug with negative integers when doing searches with relational
16 * Revision 1.21 1997/09/18 08:59:19 adam
17 * Extra generic handle for the character mapping routines.
19 * Revision 1.20 1997/09/17 12:19:10 adam
20 * Zebra version corresponds to YAZ version 1.4.
21 * Changed Zebra server so that it doesn't depend on global common_resource.
23 * Revision 1.19 1997/09/05 15:30:02 adam
24 * Changed prototype for chr_map_input - added const.
25 * Added support for C++, headers uses extern "C" for public definitions.
27 * Revision 1.18 1997/09/04 13:56:15 adam
28 * Added new filter grs.marc.<syntax> where <syntax> refers to
29 * abstract syntax. New method tellf in extract/retrieve control
32 * Revision 1.17 1997/04/30 08:56:04 quinn
35 * Revision 1.16 1996/10/11 10:56:25 adam
36 * New module recctrl. Used to manage records (extract/retrieval).
37 * All record types are accessed by means of definitions in recctrl.h.
39 * Revision 1.15 1996/06/06 12:08:16 quinn
40 * Added showRecord Group entry
42 * Revision 1.14 1996/05/09 07:28:49 quinn
43 * Work towards phrases and multiple registers
45 * Revision 1.13 1996/05/01 13:44:05 adam
46 * Added seek function to the recExtractCtrl and recRetrieveCtrl control
47 * structures. Added end-of-file indicator function and start offset to
50 * Revision 1.12 1996/01/17 15:01:25 adam
51 * Prototype changed for reader functions in extract/retrieve. File
52 * is identified by 'void *' instead of 'int'.
54 * Revision 1.11 1995/12/04 14:20:54 adam
55 * Extra arg to recType_byName.
57 * Revision 1.10 1995/10/16 14:03:06 quinn
58 * Changes to support element set names and espec1
60 * Revision 1.9 1995/10/06 14:37:53 adam
61 * New result set method: r_score.
62 * Local no (sysno) and score is transferred to retrieveCtrl.
64 * Revision 1.8 1995/10/02 15:43:35 adam
65 * Extract uses file descriptors instead of FILE pointers.
67 * Revision 1.7 1995/10/02 15:18:09 adam
70 * Revision 1.6 1995/10/02 15:05:26 quinn
73 * Revision 1.5 1995/10/02 14:55:52 quinn
74 * *** empty log message ***
76 * Revision 1.4 1995/09/27 16:17:29 adam
77 * More work on retrieve.
79 * Revision 1.3 1995/09/27 12:21:25 adam
80 * New function: recType_byName.
82 * Revision 1.2 1995/09/15 14:45:03 adam
85 * Revision 1.1 1995/09/14 07:48:13 adam
86 * Record control management.
104 /* single word entity */
112 ZebraMaps zebra_maps;
115 /* Extract record control */
116 struct recExtractCtrl {
117 void *fh; /* File handle and read function */
118 int (*readf)(void *fh, char *buf, size_t count);
119 off_t (*seekf)(void *fh, off_t offset); /* seek function */
120 off_t (*tellf)(void *fh); /* tell function */
121 void (*endf)(void *fh, off_t offset); /* end of record position */
122 off_t offset; /* start offset */
124 void (*init)(struct recExtractCtrl *p, RecWord *w);
125 void (*add)(RecWord *p);
126 ZebraMaps zebra_maps;
131 /* Retrieve record control */
132 struct recRetrieveCtrl {
133 /* Input parameters ... */
134 ODR odr; /* ODR used to create response */
135 void *fh; /* File descriptor and read function */
136 int (*readf)(void *fh, char *buf, size_t count);
137 off_t (*seekf)(void *fh, off_t offset);
138 off_t (*tellf)(void *fh);
139 oid_value input_format; /* Preferred record syntax */
140 Z_RecordComposition *comp; /* formatting instructions */
141 int localno; /* local id of record */
142 int score; /* score 0-1000 or -1 if none */
147 oid_value output_format;
154 typedef struct recType
156 char *name; /* Name of record type */
157 void (*init)(void); /* Init function - called once */
158 int (*extract)(struct recExtractCtrl *ctrl); /* Extract proc */
159 int (*retrieve)(struct recRetrieveCtrl *ctrl); /* Retrieve proc */
162 RecType recType_byName (const char *name, char *subType);