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Top Forums Shell Programming and Scripting Creating a pseudo-array in dash, (POSIX). Post 303028617 by wisecracker on Friday 11th of January 2019 08:46:31 AM
Old 01-11-2019
@ Don...

Each element in the pseudo-array will be a ASCII number from 0 to 255 decimal the value of an 8 bit byte, (so therefore 1 to 3 characters long); a simple audio sample.
(However it could be a 2 byte word from 0 to 65535 decimal, depends how I feel; a more accurate sample if I decide.)
I used newlines as an element separator in one of my examples but any IFS value would probably be OK by me...

You mention ed and I have never, ever used it and I like the idea you put forwards so man page and www it is to see the possibiities.
Is there a limit to POSIX's number of variables, or is that limited to available real memory and element sizes?

@ Jim M...

I code for pure fun and I really love trying the _impossible_ and making languages do stuff they were not designed to do.

@ Scrutinzer...

Not in my local environment at the moment but will try your method out.
 

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AFGETFRAMESIZE(3)														 AFGETFRAMESIZE(3)

NAME
afGetFrameSize - calculate the frame size in bytes for an audio track SYNOPSIS
#include <audiofile.h> float afGetFrameSize (AFfilehandle file, int track, int expand3to4); PARAMETERS
file is a valid AFfilehandle. track is an integer which refers to a specific audio track in the file. At present no supported audio file format allows for more than one audio track within a file, so track should always be AF_DEFAULT_TRACK. expand3to4 is a boolean-valued integer indicating whether frame size calculation will treat 24-bit data as having a size of 3 bytes or 4 bytes. DESCRIPTION
afGetFrameSize returns the number of bytes in a frame in a given audio track. A sample frame consists of one or more samples. For a monaural track, a sample frame will always contain one sample. For a stereophonic track, a sample frame will always contain two samples, one for the left channel and one for the right channel. A non-zero value of expand3to4 should be used when calculating the frame size for storage in memory (since 24-bit audio data is presented in memory as a 4-byte sign-extended integer), while a value of zero should be used for calculating storage on disk where no padding is added. The parameter expand3to4 is ignored unless the specified audio track contains 24-bit audio data. AUTHOR
Michael Pruett <michael@68k.org> Audio File Library 0.3.6 03/06/2013 AFGETFRAMESIZE(3)
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