-YAZ++ - A C++ library for YAZ
-
-$Id: README.txt,v 1.14 2004-01-07 11:49:03 adam Exp $
-
-
-Introduction
-------------
-
-YAZ++ is a C++ layer for YAZ and implements the ANSI Z39.50
-protocol for information retrieval (client and server side).
-The YAZ++ homepage is: http://www.indexdata.dk/yaz++/
-
-YAZ++ uses the same license as YAZ - see LICENSE file for details.
-
-Documentation
--------------
-
-Directory sub contains documentation in HTML and PDF. You can
-also read it online at http://www.indexdata.dk/yaz++/
-
-Overview
---------
-
-YAZ++ builds a programmers' library libyaz++.lib and a few
-example applications:
-
- yaz-my-client basic client
- yaz-my-server basic server
- yaz-proxy not-so-basic proxy server
-
-Directory structure of the YAZ++ package:
-
- -- src (C++ library and proxy source)
- -- zoom (C++ source for ZOOM)
- -- include/yaz++ (C++ headers)
- -- lib (compiled libraries)
- -- win (Windows build files)
- -- doc (DocBook-format documentation)
-
-
-Installation, Unix
-------------------
-
-Make sure you have a C and C++ compiler available. gcc and g++ work fine.
-
-Before compilation can take place YAZ must be installed. It goes, roughly,
-like this:
-
- $ cd yaz-<version>
- $ ./configure
- $ make
- $ su
- # make install
- $ ^D
- $ cd ..
-
-The YAZ proxy uses a configuration file in XML and libxml2 and libxslt
-is required in order for the config facility to work. Many systems already
-have libxml2/libxslt installed. In that, case remember to get the devel
-version of that as well (not just the runtime). Libxml2/libxslt can also be
-compiled easily on most systems. See http://www.xmlsoft.org/ for more
-information.
-
-Then, build YAZ++:
-
- $ cd yaz++-<version>
- $ ./configure
- $ make
-
-If you do have libxslt installed and configure above does not find it,
-use option --with-xslt=PREFIX to specify location of libxslt and libxml2.
-yaz++ configure looks for PREFIX/bin/xslt-config.
-
-Installation, Windows
----------------------
-
-YAZ++ for WIN32 should run on Windows 95/98/2K and Windows NT 4.0.
-Yaz++ was built using Microsoft Visual C++ 6.0. Other compilers
-should work but makefile/project files will have to be created for
-those compilers.
-
- Workspace yazxx.dsw includes the projects
- yazxx.dsp - builds yazxx.dll
- yazclient.dsp - builds yazmyclient.exe
- yazserver.dsp - builds yazmyserver.exe
- yazproxy.dsp - builds yazproxy.exe
-
-
-About the proxy
----------------
-
-For the proxy the actual target is determined in by the OtherInfo
-part of the InitRequest. We've defined an OID for this which we call
-PROXY. The OID is 1.2.840.10003.10.1000.81.1.
-
- OtherInformation ::= [201] IMPLICIT SEQUENCE OF SEQUENCE{
- category [1] IMPLICIT InfoCategory OPTIONAL,
- information CHOICE{
- characterInfo [2] IMPLICIT InternationalString,
- binaryInfo [3] IMPLICIT OCTET STRING,
- externallyDefinedInfo [4] IMPLICIT EXTERNAL,
- oid [5] IMPLICIT OBJECT IDENTIFIER}}
---
- InfoCategory ::= SEQUENCE{
- categoryTypeId [1] IMPLICIT OBJECT IDENTIFIER OPTIONAL,
- categoryValue [2] IMPLICIT INTEGER}
-
-The InfoCategory is present with categoryTypeId set to the PROXY OID
-and categoryValue set to 0. The information in OtherInformation uses
-characterInfo to represent the target using the form target[:port][/db].
-
-For clients that don't set the PROXY OtherInformation, a default
-target can be specified using option -t for proxy.
-
-Example:
- We start the proxy so that it listens on port 9000. The default
- target is Bell Labs Library unless it is overridden by a client in
- the InitRequest.
-
- $ ./yaz-proxy -t z3950.bell-labs.com/books @:9000
-
- The client is started and talks to the proxy without specifying
- a target. Hence this client will talk to the Bell Labs server.
-
- $ ./yaz-client localhost:9000
-
- The client is started and it specifies the actual target itself.
-
- $ ./yaz-client -p localhost:9000 bagel.indexdata.dk/gils
-
- For ZAP the equivalent would be
- proxy=localhost:9000
- target=bagel.indexdata.dk/gils
- Simple, huh!
-
-
-ZOOM-C++
---------
-
-The ZOOM library in this distribution implements the ZOOM C++ binding
-described on the ZOOM web-site at
- http://zoom.z3950.org/bind/cplusplus/index.html
-It provides a simple but powerful API for constructing Z39.50 client
-applications. See the documentation in doc/zoom.xml for much more
-information.