Re: zipping strings

[wiffel]

If you are sure you are only using ASCII, you do not need _map_ (or runes, or 
UTF8). In that case you can use something like:
    
    
    import sequtils
    
    const
      dna_norm = "ACGTacgtNn-"
      dna_comp = "TGCAtgcaNn-"
      dna_norm_seq = toSeq(dna_norm.items)
      dna_comp_seq = toSeq(dna_comp.items)
    
    echo dna_norm_seq.zip(dna_comp_seq)