[sr-dev] another syntax error

[Juha Heinanen]

Andrei Pelinescu-Onciul writes:

 > If you mean defined ($fU), instead of defined $fU, I prefer defined $fU
 >  (is more perl-like) and defined ($fU) or defined($fU) works anyway.

great, i tested and also defined($fU) works!

 > > this i don't understand.  if i assign $something = "", then $something
 > > is defined and test defined $something should return true.
 > 
 > == is for comparisons not for assignment. If I compare an undefined
 > value with "" in most languages is true.

empty string "" is a very well defined string value.  it has nothing to
do with UNDEFINED.  i could accept that it would be consider FALSE in a
test, but not UNDEFINED.

regarding "most languages", perhaps perl is such, but even in php, ""
value is a defined (set) value:

$var = '';

// This will evaluate to TRUE so the text will be printed.
if (isset($var)) {
    echo "This var is set so I will print.";
}

how do we solve this problem?  cast a vote or what?

-- juha