Tony Fisher's Freely Available Software

List of Packages

Linguistics / Formal Language Theory

• g2psg - A parser for generalized generalized phrase structure grammars

• yoyovwg - A ``yo-yo'' parser for van Wijngaarden grammars

Navigation / Cartography / Geodesy

• coco - Routines and programs (some by me, some by others) for performing conversions between various geographic coordinate systems

Digital Signal Processing / Modems / Fax / Telephones / Audio

• modem - Fax modem software - makes an SGI Indy workstation behave like a fax machine or a modem

• voicemail - Telephone manager - voicemail, remote diversion, music on hold, . . .

• pstools - various PostScript tools, including a filter for converting PostScript to Group 3 fax format

• mkfilter, gencode, genplot - programs for designing digital filters

• audio - Audio library for SGI Indy - used by fax modem software etc.

• fft - Fast Fourier Transform code

Miscellaneous

Instructions for Browsing or Down-Loading

Click on a link. If it's a plain file, the file will be displayed in your borwser window. If it's a directory, a directory listing will be displayed.

In the latter case, there will be a big bold link at the top:

If you click on this link, a script will be run in our server which packages up and (optionally) compresses the software and squirts it down the line to you. You will be asked what format you want. If you don't know, I sugges pkzip (if you're using a PC) or gzipped tar (if you're runnng Unix).

Finally, your browser will prompt you for a filename (on your local system) and will store the package in that file.

Instructions for Uncompressing and Unpacking

Uncompressed tar:

Save the results locally in a file called (e.g.) temp.tar. Unpack by

    tar xf temp.tar

This will create a new directory below your current directory, containing the software.

Gnu zipped tar:

Save the results locally in a file called (e.g.) temp.tar.gz. Uncompress and unpack by

    gunzip temp.tar.gz
    tar xf temp.tar

This will create a new directory below your current directory, containing the software.

Compressed tar:

Save the results locally in a file called (e.g.) temp.tar.Z. Uncompress and unpack by

    uncompress temp.tar.Z
    tar xf temp.tar

This will create a new directory below your current directory, containing the software.

Zip:

Save the results locally in a file called (e.g.) temp.zip. Uncompress and unzip by

    unzip temp.zip

This will create a new directory below your current directory, containing the software.

In case of difficulty, don't suffer in silence - email me.

Technical Note

This directory implements ``Publishing on Demand'' for software packages. All packages are held as zip files, which are unzipped by the server whenever you request a package or a file within a package. Similarly, when you click on a ``download'' link, the server zips (or tars, compresses, gzips, etc) the file for you.

The zip files are updated from their respective master directories each night in the wee small hours. The master directories are on a separate machine and are not visible to the server, for security reasons.

All this happens transparently to the user. You just click on a link as usual. The system has been thoroughly tested, but on only a small range of browsers. If you have any problems whatsoever, please let me know and I shall try to sort them out.

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