<tool id="resize_coordinate_window" name="Resize coordinate window" version="1.0.0">
    <description>of GFF data</description>
        <requirements>
            <requirement type="package" version="5.18.1">perl</requirement>
        </requirements>
    <command>perl $__tool_directory__/resize_coordinate_window.pl "$input" $window "$output"</command>
    <inputs>
        <param name="input" type="data" format="gff" label="Gff file" />
        <param name="window" type="integer" value="0" label="Window size in base pairs" />
    </inputs>
    <outputs>
        <data name="output" format="gff" />
    </outputs>
    <tests>
        <test>
            <param name="input" value="input.gff" ftype="gff" />
            <param name="window" value="1" />
            <output name="output" file="output.gff" ftype="gff" />
        </test>
    </tests>
    <help>

**What it does**

Modifies the start and stop coordinates of GFF data such that the new start and stop position is based on
a specified window size that is centered on the midpoint.

    </help>
    <citations>
        <citation type="bibtex">
            @unpublished{None,
            author = {Lai, William},
            title = {None},
            year = {None},
            eprint = {None},
            url = {http://www.huck.psu.edu/content/research/independent-centers-excellence/center-for-eukaryotic-gene-regulation}
        }</citation>
    </citations>
</tool>