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Operating Systems OS X (Apple) Text mode AF spectrum analyser. Post 302996481 by Corona688 on Wednesday 26th of April 2017 03:59:32 PM
Old 04-26-2017
Sometime in the 90's, I made a microphone oscilloscope which operated in DOS 80x25 text mode at 128x128 resolution. It updated the display by changing the font every single frame. This made it fast and flicker-free. I could do 128x256, which was less oddly shaped, but suffered graphical artifacts because of characters the video card blithely assumed were "line drawing" characters which it should extend to meet the neighboring character.

Oscilloscope was the best I could do. I struggled with it for a long time but never managed to port a working FFT algorithm from anywhere. There weren't widely available libraries back then.

Everything was done in Borland Turbo C for DOS, an IDE which students across the globe still use to this day for learning purposes.

Last edited by Corona688; 04-26-2017 at 05:07 PM..
 

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Quoted(3pm)						User Contributed Perl Documentation					       Quoted(3pm)

NAME
Text::Quoted - Extract the structure of a quoted mail message SYNOPSIS
use Text::Quoted; my $structure = extract($text); DESCRIPTION
"Text::Quoted" examines the structure of some text which may contain multiple different levels of quoting, and turns the text into a nested data structure. The structure is an array reference containing hash references for each paragraph belonging to the same author. Each level of quoting recursively adds another list reference. So for instance, this: > foo > # Bar > baz quux turns into: [ [ { text => 'foo', quoter => '>', raw => '> foo' }, [ { text => 'Bar', quoter => '> #', raw => '> # Bar' } ], { text => 'baz', quoter => '>', raw => '> baz' } ], { empty => 1 }, { text => 'quux', quoter => '', raw => 'quux' } ]; This also tells you about what's in the hash references: "raw" is the paragraph of text as it appeared in the original input; "text" is what it looked like when we stripped off the quotation characters, and "quoter" is the quotation string. CREDITS
Most of the heavy lifting is done by a modified version of Damian Conway's "Text::Autoformat". COPYRIGHT
Copyright (C) 2002-2003 Kasei Limited Copyright (C) 2003-2004 Simon Cozens Copyright (C) 2004 Best Practical Solutions, LLC This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.1 2010-03-15 Quoted(3pm)
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