P J B Computing

Examples of Peter Billam's work in   Perl,   Python,   Lua,   JavaScript   and PostScript

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Perl

• muscript, the free music typesetting software
• midisox_pl, the SoX-like workalike, for handling MIDI files
• The CPAN Perl Modules, available from search.cpan.org/~pjb
  • Term::Clui   (a Command-Line User Interface, my favourite module)
  • Crypt::Tea_JS   (the Tiny-Encryption-Algorithm in Perl and JavaScript)
  • Math::Evol   (Evolution-search optimisation)
  • Math::RungeKutta   (Integrating Differential Equations by Runge-Kutta methods)
  • Math::WalshTransform   (Fast Hadamard and Walsh Transforms)
  • MIDI::ALSA   (an interface to the ALSA library)
  • MIDI::SoundFont   (handles SoundFont .sf2 and Gravis .pat and .zip files)
  • New !   Speech::Speakup   (gets and sets parameters for the Speakup screen-reader)

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Python

• MIDI.py, which translates MIDI events into and from Python3 list-structures
• TermClui.py,   a Command-Line User Interface, a translation of the Term::Clui Perl module
• midisox, the SoX-like workalike, for handling MIDI files

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Lua

• RungeKutta.lua, a call-compatible translation of the Math::RungeKutta Perl module
• WalshTransform.lua, a call-compatible translation of the Math::WalshTransform Perl module
• Evol.lua, a call-compatible translation of the Math::Evol Perl module
• MIDI.lua, a call-compatible translation of the MIDI.py Python module
• midisox_lua, the SoX-like workalike, for handling MIDI files
• New !   midialsa.lua, an interface to the ALSA library, a call-compatible translation of the MIDI::ALSA Perl module, and based on the alsaseq and alsamidi Python modules by Patricio Paez

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JavaScript

• The Perl CPAN Module Crypt::Tea_JS
• The online game of Laska play_laska.html
• The online Esperanto dictionary eo_en.html
• The Leitmotifs of Wagner's Ring Cycle

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PostScript

• muscript, the free music typesetting software
• The line_drawing.ps line-drawing subroutines for artists
• The colours.ps colour-handling subroutines for artists
• The brownian.ps subroutines for random fractal ("Brownian Noise") curves and landscapes, for artists to generate horizons, cloudscapes, interestingly textured backgrounds, etc . . .
• A self-portrait using these subroutines
• The Perl script include_run to include all run-files into a PostScript file
• Various patterns for making juggling equipment
• A comparison of Perl and PostScript as programming languages, which would serve Perl people as an introduction to PostScript

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See also . . .

• The paper on Security presented to the AUUG Summer Seminar in Hobart in 1997
• The paper on Internet Payment Systems presented to the Tasmanian Ingres User Group on 28 Oct 1998
• A first Introduction to HTML
• A reference list of ISO characters (European accents like grave, cedilla, umlaut) and how to express them in Octal and HTML and produce them with the ALT key on a US-ascii keyboard
• The documentation of Reuben Thomas' lcurses Lua module.
• Peter Billam's C.V. and resume and contact details

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Other Sites . . .

• POS Software & Systems Group - Point of sale software and equipment for small to large retailers
• mojoscripts.com - Interactivate your website with MojoScript's CGI Scripts
• www.inkguides.com is a collection of PostScript and GhostScript resources

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