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