def adapter_removal_parser(filename):
    """Parses output of AdapterRemoval software

    .. doctest::

        >>> from sequana import adapters, sequana_data
        >>> data = sequana_data("test_adapter_removal_output.txt", "testing")
        >>> results = adapters.adapter_removal_parser(data)
        >>> results["adapter1"]
        'AGATCGGAAGAGCACACGTCTGAACTCCAGTCACNNNNNNATCTCGTATGCCGTCTTCTGCTTG'

    """
    results = {}
    with open(filename, 'r') as fin:
        lines = fin.readlines()
        for line in lines:
            if line.startswith('  --adapter'):
                lhs, rhs = line.split(':')
                name = lhs.strip().replace('-', '')
                sequence = rhs.strip()
                results[name] = sequence
    return results
