Batch File [Advanced]:DisplayNumber (Specify Unit)

Hi there,

This is the first of a series of questions in order to team improve the following batch file.

Cheers,
Rene

FEATURE TO BE ADDED:
Add a parm that allows to specify the desired units.  If the desired unit is not specified ("") the result will be as the provided script.

EXAMPLES:
CALL :DisplayNumber Number "1 234 567" "MB"  ---> 1.234 MB
CALL :DisplayNumber Number "123" "MB"  ---> 0.000123 MB
CALL :DisplayNumber Number "1 234 567" ""  ---> 1.234 MB

@ECHO OFF
SETLOCAL EnableDelayedExpansion

CALL :DisplayNumber Number "000 0123 456 789"
ECHO !Number!
ECHO.

FOR /L %%A in (0,1,2) DO FOR /L %%B in (9,-1,0) DO (
   SET Val=%%B!Val!
   CALL :DisplayNumber Number "!Val!"
   ECHO !Number!
)

PAUSE
EXIT

:DisplayNumber [1=Result Var Name] [Val] 
SETLOCAL
CALL :CleanNb Nb "%~2"
SET UnitNb=0
SET Unit=[UN-DEFINED UNIT]
   :DisplayNumber1
   IF defined Nb SET digit=%Nb:~-3%
   SET /a UnitNb+=1
   SET Result2=!Result1!
   SET Result1=!digit!

   IF DEFINED Result2 (SET Result=%Result1%.%Result2%) ELSE (SET Result=%Result1%)
   SET Nb=%Nb:~0,-3%
   
   IF DEFINED Nb GOTO DisplayNumber1

   FOR /F "tokens=%UnitNb% delims=," %%A IN ("B,KB,MB,GB,TB,PB,EB,ZB") DO SET Unit=%%A
   ENDLOCAL & SET %~1=%Result% %Unit%
   GOTO :eof


:CleanNb
IF "%~2" == "" SET %~1=0 & EXIT /b
SETLOCAL
SET Nb=%~2
SET Nb=%Nb: =%
   :CleanNb2
   IF "%Nb:~0,1%" EQU "0" (
      SET Nb=%Nb:~1%
      GOTO CleanNb2
   )
   ENDLOCAL&SET %~1=%Nb%
   EXIT /b

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