fansh> a := "alphaBETA"
alphaBETA
fansh> a.upper // convert whole string to upper case
ALPHABETA
fansh> a.lower // convert whole string to lower case
alphabeta
fansh> a.capitalize  // make sure first letter is capital
AlphaBETA
fansh> "BETAalpha".decapitalize  // make sure first letter is not capital
bETAalpha