Bin2Hex ( binary )

A function to convert a binary number to a hex string.

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Vaughan Bromfield - Show more from this author

Sample input:

Bin2hex ( 001111 )

Sample output:

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

// Bin2hex ( binary )
// Converts a binary number to hexadecimal
//
// Written by Vaughan Bromfield
// vbromfield@optusnet.com.au
// 14 March 2010


Let( 

[ 
bits = 4 ; 
byte = Right( "0000" & Right( binary ; bits ) ; bits ) ; 
nextbinary = If( Length( binary ) ≥ bits ; Left( binary ; Length( binary ) - bits ) ; binary ) ; 
num = Middle( byte ; 4 ; 1 ) * 2^0 + Middle( byte ; 3 ; 1 ) * 2^1 + Middle( byte ; 2 ; 1 ) * 2^2 + Middle( byte ; 1 ; 1 ) * 2^3 ; 
digit = Choose( num ; "0" ; "1" ; "2" ; "3" ; "4" ; "5" ; "6" ; "7" ; "8" ; "9" ; "a" ; "b" ; "c" ; "d" ; "e" ; "f" ; "g" )
] ; 

Case( 

Length( binary ) ≤ bits ; digit ; // exit the recursion

Bin2hex ( nextbinary ) & digit // more to process

) // end case

) // end let

A function to convert a binary number to a hex string.

Comments

		Brian Dunning, BrianDunning.com Mar 14, 2010
The Sample Input and Sample Output do not appear to match the function.

		Vaughan Bromfield Mar 14, 2010
Thanks Brian, I've fixed it.

		Greg Jul 24, 2010
"g" theres no g in hexadecimal?

		Vaughan Bromfield Jul 24, 2010
It's there to trap for errors in the logic, to give the num variable an over-run value. On a whim I left it there to see if anybody would notice. Congratulations, you noticed. LOL

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

Bin2Hex ( binary )

Comments

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