#
# Copyright INRA-URGI 2009-2010
# 
# This software is governed by the CeCILL license under French law and
# abiding by the rules of distribution of free software. You can use,
# modify and/ or redistribute the software under the terms of the CeCILL
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# "http://www.cecill.info".
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from commons.core.writer.BedWriter import BedWriter

class UcscWriter(BedWriter):
    """
    A class that writes a transcript list into a file with UCSC BED format (minor differences with BED format)
    """


    def __init__(self, fileName, verbosity = 0):
        """
        Constructor
        @param fileName: name of the file 
        @type fileName: string
        @param verbosity: verbosity
        @type verbosity: int
        """
        super(UcscWriter, self).__init__(fileName, verbosity)
        

    @staticmethod
    def getFileFormats():
        """
        Get the format of the file
        """
        return ["ucsc"]
        
        
    @staticmethod
    def getExtension():
        """
        Get the usual extension for the file
        """
        return "bed"

        
    def printTranscript(self, transcript):
        """
        Export the given transcript with GBrowse format
        @param transcript: transcript to be printed
        @type transcript: class L{Transcript<Transcript>}
        @return: a string
        """
        return transcript.printUcsc()