<tool id="cat1" name="Concatenate datasets">

    <description>tail-to-head</description>

    <command interpreter="python">

        catWrapper.py 

        $out_file1 

        $input1

        #for $q in $queries

            ${q.input2}

        #end for

    </command>

    <inputs>

        <param name="input1" type="data" label="Concatenate Dataset"/>

        <repeat name="queries" title="Dataset">

            <param name="input2" type="data" label="Select" />

        </repeat>

    </inputs>

    <outputs>

        <data name="out_file1" format="input" metadata_source="input1"/>

    </outputs>

    <tests>

        <test>

            <param name="input1" value="1.bed"/>

            <param name="input2" value="2.bed"/>

            <output name="out_file1" file="cat_wrapper_out1.bed"/>

        </test>

        <!--TODO: if possible, enhance the underlying test code to handle this test

            the problem is multiple params with the same name "input2"

        <test>

            <param name="input1" value="1.bed"/>

            <param name="input2" value="2.bed"/>

            <param name="input2" value="3.bed"/>

            <output name="out_file1" file="cat_wrapper_out2.bed"/>

        </test>

        -->

    </tests>

    <help>



.. class:: warningmark



**WARNING:** Be careful not to concatenate datasets of different kinds (e.g., sequences with intervals). This tool does not check if the datasets being concatenated are in the same format. 



-----



**What it does**



Concatenates datasets



-----



**Example**



Concatenating Dataset::



    chrX  151087187  151087355  A  0  -

    chrX  151572400  151572481  B  0  +



with Dataset1::



    chr1  151242630  151242955  X  0  +

    chr1  151271715  151271999  Y  0  +

    chr1  151278832  151279227  Z  0  -

    

and with Dataset2::



    chr2  100000030  200000955  P  0  +

    chr2  100000015  200000999  Q  0  +



will result in the following::



    chrX  151087187  151087355  A  0  -

    chrX  151572400  151572481  B  0  +

    chr1  151242630  151242955  X  0  +

    chr1  151271715  151271999  Y  0  +

    chr1  151278832  151279227  Z  0  -

    chr2  100000030  200000955  P  0  +

    chr2  100000015  200000999  Q  0  +



    </help>

</tool>