Hi,

I need to sort a list with a customized sort order, e.g. (a,c,d,e,b). This works fine as long I give the sortorder in the sort_sub like this: 

@tobesorted=(b,a,d);
@sorted=sort by_list @tobesorted;

sub by_list{
@sortorder=(a,c,d,e,b);
map { if ($a eq $sortorder[$_]){$ai=$_} } 0..$#sortorder;
map { if ($b eq $sortorder[$_]){$bi=$_} } 0..$#sortorder;
$ai <=> $bi;
}

[download]

Nevertheless is there a possibility to hand over the list to the sub like: 

@sorted=sort by_list(\@sortorder) @tobesorted;
....
sub by_list{
@sortorder=@{$_[0]};
.....

[download]

I cant get the argument handed over to the sort_sub. Has that to do with the "local ($a,$b)" used for sort ? Any hints to write the code more elegant are appreciated.

Thanks, Hasenbraten

In reply to give arguments to sort_sub by hasenbraten

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