split(/$argv{splitchar}/,$_);
${$argv{hashref}}{$_[0]}=$_[1];

# is that ok ??

# and what about some thing like..
# (and I DONT KNOW the syntax, that's why im here!!)
( ${$argv{hashref}}{$_} = $_ )=  split(/$argv{splitchar}/,$_);  

#is that totally making it up ?