[Batch] Numeric validation methods.

IsDecimal.bat

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:IsDecimal <xReturn> <xInput> [xDelims]
:: Return true if the input is a decimal 10.0 number, else return false.
:::: Only allows for period seperator unless specified by xDelims. ,[tab][space]
call :IsNumber %1 %2 %3
goto :eof
:: by David Ruhmann

IsNumber.bat

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:IsNumber <xReturn> <xInput> [xDelims]
:: Return true if the input is a base 10 number, else return false.
:::: Does not allow any seperators unless specified by xDelims. ,.[tab][space]
setlocal
if not "%~2"=="" set "xResult=true"
for /f "tokens=1 delims=1234567890%~3" %%n in ("%~2") do set xResult=false
endlocal & if not "%~1"=="" set "%~1=%xResult%"
goto :eof
:: by David Ruhmann