title: change gff file format to zff format
body: <p>I have a gff file look like below and each column separate by tab. </p>
  
  <blockquote>
    <p>head(a,5)</p>
  </blockquote>
  
  <pre><code>      V1        V2   V3   V4   V5 V6 V7 V8
       gi|447604937|gb|AJJZ010637342.1| assembler gene 1059 1513  .  -  .
       gi|447604937|gb|AJJZ010637342.1| assembler mRNA 1059 1513  .  -  .
       gi|447604937|gb|AJJZ010637342.1| assembler exon 1059 1513  .  -  .
       gi|447604937|gb|AJJZ010637342.1| assembler mRNA 1059 1513  .  -  .
       gi|448181314|gb|AJJZ010120701.1| assembler gene 4700 8169  .  +  .
                                                                            V9
                                  ID=PASA_cluster_9835;Name=PASA_cluster_9835
                       ID=align_id:87873|asmbl_10255;Parent=PASA_cluster_9835
       ID=exon:align_id:87873|asmbl_10255:1;Parent=align_id:87873|asmbl_10255
       ID=mRNA:align_id:87873|asmbl_10255:1;Parent=align_id:87873|asmbl_10255
                                ID=PASA_cluster_24371;Name=PASA_cluster_24371
  </code></pre>
  
  <p>and I want to change the format to</p>
  
  <blockquote>
  <pre><code>&gt;gi|447604937|gb|AJJZ010637342.1|
  Exon  1059    1513
  &gt;gi|448181314|gb|AJJZ010120701.1|
  Exon  4700    5043
  Exon  5520    5691
  Exon  6372    6578
  Exon  7139    7398
  Exon  8010    8169
  &gt;gi|448056666|gb|AJJZ010222983.1|
  Exon  36  948
  </code></pre>
  </blockquote>
  
  <p>I'm very new in r to change format of file so how should I solve this problem. I'm not sure reshape package can solve this program or not. If it can, please give me some example.</p>
  
  <p>Thank you for an advice</p>