1 /* $Id: recctrl.h,v 1.41 2004-08-06 12:28:22 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 #include <yaz/proto.h>
38 /* single word entity */
47 struct recExtractCtrl *extractCtrl;
50 /* Extract record control */
51 struct recExtractCtrl {
52 void *fh; /* File handle and read function */
53 int (*readf)(void *fh, char *buf, size_t count);
54 off_t (*seekf)(void *fh, off_t offset); /* seek function */
55 off_t (*tellf)(void *fh); /* tell function */
56 void (*endf)(void *fh, off_t offset); /* end of record position */
57 off_t offset; /* start offset */
59 void (*init)(struct recExtractCtrl *p, RecWord *w);
61 void (*tokenAdd)(RecWord *w);
65 void (*schemaAdd)(struct recExtractCtrl *p, Odr_oid *oid);
70 /* Retrieve record control */
71 struct recRetrieveCtrl {
72 /* Input parameters ... */
73 Res res; /* Resource pool */
74 ODR odr; /* ODR used to create response */
75 void *fh; /* File descriptor and read function */
76 int (*readf)(void *fh, char *buf, size_t count);
77 off_t (*seekf)(void *fh, off_t offset);
78 off_t (*tellf)(void *fh);
79 oid_value input_format; /* Preferred record syntax */
80 Z_RecordComposition *comp; /* formatting instructions */
81 char *encoding; /* preferred character encoding */
82 zint localno; /* local id of record */
83 int score; /* score 0-1000 or -1 if none */
84 int recordSize; /* size of record in bytes */
85 char *fname; /* name of file (or NULL if internal) */
90 oid_value output_format;
97 typedef struct recType *RecType;
101 char *name; /* Name of record type */
102 void *(*init)(RecType recType); /* Init function - called once */
103 void (*destroy)(void *clientData); /* Destroy function */
104 int (*extract)(void *clientData,
105 struct recExtractCtrl *ctrl); /* Extract proc */
106 int (*retrieve)(void *clientData,
107 struct recRetrieveCtrl *ctrl); /* Retrieve proc */
110 #define RECCTRL_EXTRACT_OK 0
111 #define RECCTRL_EXTRACT_EOF 1
112 #define RECCTRL_EXTRACT_ERROR_GENERIC 2
113 #define RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER 3
115 typedef struct recTypes *RecTypes;
117 RecTypes recTypes_init (data1_handle dh);
118 void recTypes_destroy (RecTypes recTypes);
119 void recTypes_default_handlers (RecTypes recTypes);
121 RecType recType_byName (RecTypes rts, const char *name, char *subType,
124 int grs_extract_tree(struct recExtractCtrl *p, data1_node *n);