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- HyperWais 1.7:
- --------------
-
- Welcome to HyperWais, a Hypercard stack for searching Wide Area
- Information Servers.
-
-
-
- What is HyperWais:
- ------------------
-
- HyperWais is a hypercard stack which can be used to access Wide Area
- Information Servers (WAIS) on the internet, currently there about about
- 300 public access servers available.
-
- HyperWais allows you to connect up to any number of servers, search
- them, download documents and view/save them either with built-in
- handlers or using other applications to view them. Support is also
- provided for doing relevance feedback. All this functionality is provided within hypercard in the form of a stack, in fact there are two stacks,
- one built for Macs with small screens and one built for Macs with larger
- screens. Because the search interface is built using Hypercard, users
- can completely remodel it to their taste.
-
- Two versions of the product are provided, one (HyperWais.sea.hqx) is
- aimed at users who just want to use the system, and the other
- (HyperWais.src.sea.hqx) includes all the C source code used to build
- HyperWais for those of you who want to see hows it's built.
-
-
-
- Where can I get HyperWais:
- --------------------------
-
- HyperWais can be obtained by anonymous FTP from:
-
- mendel.welch.jhu.edu:/pub/fs/HyperWais.sea.hqx,
- mendel.welch.jhu.edu:/pub/fs/HyperWais.src.sea.hqx,
-
- the internet address for mendel is [128.220.59.42],
-
-
- or from:
-
- sunsite.oit.unc.edu:/pub/wais/Mac/HyperWais.sea.hqx,
- sunsite.oit.unc.edu:/pub/wais/Mac/HyperWais.src.sea.hqx,
-
- the internet address for sunsite is [152.2.22.81].
-
- HyperWais.sea.hqx contains the User Distribution and
- HyperWais.src.sea.hqx contains the Source Code Distribution.
-
-
-
- What does HyperWais cost:
- -------------------------
-
- Nothing, but be sure to read the COPYRIGHT file to see what the
- restrictions are.
-
-
-
- What is included in the User distribution:
- ------------------------------------------
-
- After you have uncompressed the archive, you should find:
-
- - This file (named README).
-
- - The copyright file (named COPYRIGHT).
-
- - A Hypercard stack called HyperWais, which is a sample stack for
- searching WAIS databases. This stack contains a set of XCMDs which
- allow the stack to communicate (via Apple Events) with the "Wais
- Listener". There is also another stacks called HyperWais 12 for 12"
- monitors.
-
- - A application called "Wais Listener", this is the Faceless Background
- Application (FBA) which allows the Hypercard stack to communicate with
- WAIS servers. This application just sits in the background and listens
- out to Apple Events. All you need to do is start it up. Note that the
- "Wais Listener" will grab a chunk of memory (about 450K) which will be
- added to the system software in the "About this mac" box.
-
- - Another application called "Wais Listener.debug", this is the same
- application as the "Wais Listener" but will have a visible debug window
- which will list out all the events/data received and events/data
- returned. You may want to use this application to see what is going
- on. Both "Wais Listener" and "Wais Listener.debug" create log files
- which can be looked at with any text editor.
-
- - A folder called wais-sources where HyperWais stores the WAIS source
- description files.
-
- - A folder called wais-documents where HyperWais stores some WAIS
- document files.
-
- - A folder called wais-questions which does nothing at this time.
-
- - Dont forget to read the release notes located in the Release Notes
- folder, these list out all the changes that were made with each
- version of HyperWais.
-
-
-
- What is included in the Source distribution:
- --------------------------------------------
-
- - All that is included in the User Distribution.
-
- - All the source code (there is a lot and I have yet to list it).
-
-
-
- Other software you need to run HyperWais:
- -----------------------------------------
-
- To run HyperWais you will need to run system 7.0, Hypercard 2.1 and
- MacTCP 1.1. Hypercard will have to be allocated 1500K of memory, this
- is done using the "Get Info" menu in the Finder.
-
- The Wais Listener should have about 450K of allocated to it.
-
- If you want to compile the source code, you will need Think C 5.0.X ( There
- is a bug in 5.0.3 and I would not recomend using it ), and the MacTCP
- toolkit from APDA. The software was built with the standard library
- distribution from Symantec, but you will have to recompile them with the
- 4 byte integers option set, ( you may well be able to compile the application
- with 2 byte integers set, but you will need to recompile *all* the code in the
- distribution software).
- Note that I have been very specific about my integers, so compiling
- with either 2 byte integers or 4 bytes integers should make no difference.
-
-
-
- Starting up:
- ------------
-
- To start up you need to launch the "Wais Listener" application, then
- start HyperWais. HyperWais will need the wais-sources folder and the
- wais-documents folder in the folder it is located in (these are in the
- archive and should be created automatically). Note that the "Wais Listener"
- needs MacTCP to communicate with wais sources. You may want to place the
- "Wais Listener" in the startup folder located in the system folder.
- This will ensure that the "Wais Listener" is started up everytime you
- start up your mac.
-
-
-
- Some limitations:
- -----------------
-
- The "Wais Listener" will support any number of connections, any number
- of open sources per connection, number of document headlines per
- connection and any number of relevance feedback entries per
- connection. The main limitation imposed is the amount of memory
- available to the "Wais Listener'. The connections can be opened by
- clients located either on the same macintosh as the "Wais Listener" or on
- a different macintosh. This feature would enable you to set up a
- "Wais Listener" gateway on one macintosh with a connection to
- the Internet and have a number of other macintoshs using appletalk to
- connect up to that Wais Listener.
-
-
-
- Technical Overview:
- -------------------
-
- The are three components to the HyperWais software:
-
- - There are a set of C routines which handle the MacTCP communications
- and the WAIS protocols. These can be linked in with any other
- applications which want to use WAIS.
-
- - On top of the C routines, there is the module that handle the Apple
- Events and maps them to the C routines.
-
- - There is also another Apple Event module which deals with the
- communication between the client program and the "Wais Listener".
-
-
-
- Below is a diagram of how the software is layered. There are a set of
- basic routines which support basic services to wais servers via
- MacTCP. These routines provide very basic services such as connection,
- disconnection, init, query and downloading data. The glue routines
- provide an abstracted view of the basic routines and allow a user to
- access wais services without having to worry about the protocol and
- MacTCP. These are the routines that someone would use to integrate wais
- in their products.
-
- There is an FBA (called the "Wais Listener") which will listen out to
- apple events and call the appropriate glue routines. This FBA can
- either run on the same mac as the wais client (using the FBA that is)
- or on another mac. The FBA will support any number of sessions either
- from the same client or different client, and either from the same user
- or different users on different mac.
-
- At the other end, there are a set of stubs which implement the Apple
- Events calling functions making it easier for people to integrate them
- into their applications. And on top of that a set of XFCN for Hypercard
- or others.
-
- All this is written in a layered manner so that people who want to
- integrate wais services into their applications can do so at various
- levels. Either one could use Apple Events, or call the glue routines
- directly and just link in the C library into their application, or if
- you want to program on the 'bare metal', you could go directly against
- the basic routines.
-
-
- -----------------------
- | XFCN |
- -----------------------
- | Apple Events |
- -----------------------
- |
- |
- |
- ----------------------- This whole block
- | Apple Events | is the wais listener
- -----------------------
- | Glue Routines |
- -----------------------
- | Basic Routines |
- -----------------------
- | WAIS protocol |
- -----------------------
- | MacTCP |
- -----------------------
-
-
-
- francois
-
- Francois Schiettecatte
- Software Engineer
- Advanced Technology Group
- Welch Medical Library
- Johns Hopkins University
- Internet: francois@library.welch.jhu.edu
- Phone : (410) 955-7581
-
-
-