2 * Copyright (C) 1995-1998, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
6 Compilation and installation for YAZ
7 $Id: README,v 1.19 1998-01-07 12:59:27 adam Exp $
9 The primary output of the source here is the lib/libyaz.a library,
10 which contains support functions for implementing the server or client
13 Windows programmers: refer to the file windows.txt which describes
14 how to compile the software using Microsoft Visual C++.
16 Two test-programs of interest are generated when you type 'make' at
17 the top level: ztest/ztest and client/client. Ztest is a dummy database
18 server which returns canned responses to all queries. It's good for
19 verifying that the protocol works ok, and ztest.c shows a minimalistic
20 implementation of the 'backend' interface.
22 Client is a linemode Z39.50 client. It supports a fair amount of the
23 functionality of Z39.50v2/SR, but some things you need to enable or disable
24 by recompilation. Its primary purpose is to excersise the package, and
25 verify that the protocol works OK. It can be started by typing
27 client tcp:<hostname>:<port>
29 at the UNIX prompt, to connect to a Z39.50 server, or
31 client osi:[<tsel>'/']<hostname>:<port>
33 to connect to an OSI SR target (this requires mOSI-support). To connect to
34 the DANBIB test target, you might use:
36 client osi:0103/find2.denet.dk:4500
38 Use '?' to get a list of the available commands.
40 The current query language is a bit awkward, but functional:
42 query ::= ['@attrset' <attribute-set>] rpn
43 rpn ::= complex | simple | attr rpn
44 complex ::= operator rpn rpn
45 operator ::= '@and' | '@or' | '@not' | '@prox' proximity
46 simple ::= term | set.
47 term ::= <word> | '"' <term> ... '"'.
48 set ::= '@set' <setname>.
49 attr ::= '@attr' [<attribute-set>] <number> '=' <number>.
50 proximity ::= exclusion distance ordered relation which unit
51 exclusion ::= '1' | '0' | 'void'
55 which ::= 'known' | 'private'
64 @and @attr 1=1 andersen @attr 1=4 @attr 4=2 duckling
66 @attrset Bib-1 @and @attr GILS 2=2008 Washington @attr 1=21 weather
72 util - Various little utility functions. Logging, memory debugging,
73 primitive ISO 2709 presentation for the client, etc.
75 odr - Open Data Representation. This module implements the BER
76 encoding rules. Documentation is found in the files odr-use.man
79 asn - This module implements the Z39.50/SR protocol. The best way
80 to find out how it works is to look in the sample
81 client/server code in server/seshigh.c or yazlib/tst.c. The
82 interface is still wholly described by the file proto.h
83 which defines structure and type definitions for each of the
84 types introduced in the protocol specification.
86 comstack- This module implements the transport transparency
87 stack (COMSTACK). The comstack implements a generic interface
88 for exchanging BER-encoded records over a network. It supports
89 the 'American' mode of exchanging the records straight over
90 TCP/IP, and uses Peter Furniss' XTIMOSI package over RFC1006.
91 Look for documentation in the file comstack.man.
93 rfc1006 - Xtimosi requires an implementation of the OSI transport
94 layer with an XTI-based API. Some systems (HP and DEC,
95 notably) provide this. For others, we provide an
96 implementation of the RFC1006 protocol (which is what
97 ISODE-based implementations often use). This module is not
98 neeeded if you don't use xtimosi, and it's not included in the
101 server - This is the implementation of the server frontend. It
102 provides event-handling and server managament functions,
103 and calls the backend primitives (best documentation of these
104 is in the file include/backend.h). See server.txt.
106 client - A demonstration client. If we come upon a good design for a
107 higher level client API, that will live here.
109 ztest - A demonstration server that implements a backend.
111 include - The various header files.
113 makelib - This is a simple utility that gathers the libraries from the
114 previous modules into libyaz.a.
116 lib - The libraries. Primarily libyaz.a.
118 To get more information or assistance, send mail to yaz-help@indexdata.dk.
120 We maintain a mailing-list for the purpose of announcing new versions of
121 the software, bug-reports, discussion etc. You can sign up by sending
122 mail to yaz-request@indexdata.dk.