Hi,
Suppose you have the following variable:
>my_id
----------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+----------------------------

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and a Hash of Arrays that has ranges of numbers in pairs :
123-186
188-259
263-340
1-93

[download]
What I want to do, is to substitute the - with A for every range that is mentioned in all the arrays of the HoA.
I have written this simple code so far:
my $id = '------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+---------------------------------------------------------------------
+--------------------------------------
';
foreach my $l ( 0 .. $#{ $HoA{$id} } ) 
{
    my $separate_range = $HoA{$id}[$l];
    if($separate_range=~/(\d+)\-(\d+)/)
    {
        my $hit_beg=$1;
        my $hit_end=$2;
        my $hit_length=$hit_end-$hit_beg+1;
    
    }
}

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How will I continue in order to substitute, e.g. all characters between position 123 and 186 from - to A?

In reply to How do you perform this substitution? by Anonymous Monk

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