2 * Copyright (C) 1994-1997, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.20 1997-09-17 12:19:10 adam
8 * Zebra version corresponds to YAZ version 1.4.
9 * Changed Zebra server so that it doesn't depend on global common_resource.
11 * Revision 1.19 1997/09/05 15:30:02 adam
12 * Changed prototype for chr_map_input - added const.
13 * Added support for C++, headers uses extern "C" for public definitions.
15 * Revision 1.18 1997/09/04 13:56:15 adam
16 * Added new filter grs.marc.<syntax> where <syntax> refers to
17 * abstract syntax. New method tellf in extract/retrieve control
20 * Revision 1.17 1997/04/30 08:56:04 quinn
23 * Revision 1.16 1996/10/11 10:56:25 adam
24 * New module recctrl. Used to manage records (extract/retrieval).
25 * All record types are accessed by means of definitions in recctrl.h.
27 * Revision 1.15 1996/06/06 12:08:16 quinn
28 * Added showRecord Group entry
30 * Revision 1.14 1996/05/09 07:28:49 quinn
31 * Work towards phrases and multiple registers
33 * Revision 1.13 1996/05/01 13:44:05 adam
34 * Added seek function to the recExtractCtrl and recRetrieveCtrl control
35 * structures. Added end-of-file indicator function and start offset to
38 * Revision 1.12 1996/01/17 15:01:25 adam
39 * Prototype changed for reader functions in extract/retrieve. File
40 * is identified by 'void *' instead of 'int'.
42 * Revision 1.11 1995/12/04 14:20:54 adam
43 * Extra arg to recType_byName.
45 * Revision 1.10 1995/10/16 14:03:06 quinn
46 * Changes to support element set names and espec1
48 * Revision 1.9 1995/10/06 14:37:53 adam
49 * New result set method: r_score.
50 * Local no (sysno) and score is transferred to retrieveCtrl.
52 * Revision 1.8 1995/10/02 15:43:35 adam
53 * Extract uses file descriptors instead of FILE pointers.
55 * Revision 1.7 1995/10/02 15:18:09 adam
58 * Revision 1.6 1995/10/02 15:05:26 quinn
61 * Revision 1.5 1995/10/02 14:55:52 quinn
62 * *** empty log message ***
64 * Revision 1.4 1995/09/27 16:17:29 adam
65 * More work on retrieve.
67 * Revision 1.3 1995/09/27 12:21:25 adam
68 * New function: recType_byName.
70 * Revision 1.2 1995/09/15 14:45:03 adam
73 * Revision 1.1 1995/09/14 07:48:13 adam
74 * Record control management.
96 /* single word entity */
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)(RecWord *p);
125 void (*add)(const RecWord *p);
126 const char **(*map_chrs_input)(const char **from, int len);
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);