Re: Values passed into a sub routine

If I follow, the ~~syntax~~calling convention is

build_url($account, [ $transaction, [ $location, ] ] $fname, $lname);
[download]

where square brackets denote optional parameters. You could use

sub build_url {
   my $lname = pop;
   my $fname = pop;
   my ($account, $transaction, $location) = @_;
   ...
}
[download]

sub build_url {
   my $account     = shift;
   my $transaction = @_>=4 ? shift : undef;
   my $locaton     = @_>=3 ? shift : undef;
   my $fname       = shift;
   my $lname       = shift;
   ...
}
[download]

sub build_url {
   splice(@_, 1, 0, (undef)x(5-@_))
   my ($account ,$transaction, $location, $fname, $lname) = @_;
   ...
}
[download]

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Re^2: Values passed into a sub routine by Anonymous Monk on Apr 19, 2011 at 17:18 UTC
I like this way as you stated, but: `build_url( $account,[$fname], [$lname]); sub build_url { my $lname = pop; my $fname = pop; print "$lname and $fname\n"; my ($account ,$transaction, $location) = @_; ... }` [download] If a run this I am getting this: Lname=ARRAY(0x8967f28) and Fname=ARRAY(0x8967748) Any suggestion? Thanks!	[reply] [d/l]
Re^3: Values passed into a sub routine by ikegami (Patriarch) on Apr 19, 2011 at 17:25 UTC
To put it differently, I understood that you want to support the following three calling conventions and only those three calling conventions: `build_url($account, $fname, $lname); build_url($account, $transaction, $fname, $lname); build_url($account, $transaction, $location, $fname, $lname);` [download] If so, all three alternatives I provided should work.	[reply] [d/l]
Re^3: Values passed into a sub routine by Anonymous Monk on Apr 19, 2011 at 18:11 UTC
What about this: `build_url( account => $account, fname => $fname, lname => $lname], ); sub build_url { my (%args) = @_; my $account = $args{account} \|\| ''; my $fname = $args{fname} \|\| ''; my $lname = $args{lname} \|\| ''; my $other = $args{other} \|\|''; ... }` [download] There, it should prevent it to be out of order right?	[reply] [d/l]