Mercurial > repos > yufei-luo > s_mart
diff SMART/Java/Python/fastqToFasta.py @ 6:769e306b7933
Change the repository level.
author | yufei-luo |
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date | Fri, 18 Jan 2013 04:54:14 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SMART/Java/Python/fastqToFasta.py Fri Jan 18 04:54:14 2013 -0500 @@ -0,0 +1,96 @@ +#! /usr/bin/env python +# +# 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 +# license as circulated by CEA, CNRS and INRIA at the following URL +# "http://www.cecill.info". +# +# As a counterpart to the access to the source code and rights to copy, +# modify and redistribute granted by the license, users are provided only +# with a limited warranty and the software's author, the holder of the +# economic rights, and the successive licensors have only limited +# liability. +# +# In this respect, the user's attention is drawn to the risks associated +# with loading, using, modifying and/or developing or reproducing the +# software by the user in light of its specific status of free software, +# that may mean that it is complicated to manipulate, and that also +# therefore means that it is reserved for developers and experienced +# professionals having in-depth computer knowledge. Users are therefore +# encouraged to load and test the software's suitability as regards their +# requirements in conditions enabling the security of their systems and/or +# data to be ensured and, more generally, to use and operate it in the +# same conditions as regards security. +# +# The fact that you are presently reading this means that you have had +# knowledge of the CeCILL license and that you accept its terms. +# +"""Convert a FASTQ file to a FASTA file""" + +import os +import sys +from optparse import OptionParser +from SMART.Java.Python.misc.RPlotter import RPlotter +from SMART.Java.Python.misc.Progress import Progress +from math import * + +if __name__ == "__main__": + + # parse command line + description = "FastQ to FastA v1.0.1: Convert a FastQ file into a FastA file. [Category: Personnal]" + + parser = OptionParser(description = description) + parser.add_option("-i", "--input", dest="inputFileName", action="store", type="string", help="input file [compulsory] [format: file in FASTQ format]") + parser.add_option("-o", "--output", dest="outputFileName", action="store", type="string", help="output file [compulsory] [format: output file in FASTA format]") + parser.add_option("-v", "--verbosity", dest="verbosity", action="store", default=1, type="int", help="trace level [default: 1] [format: int]") + (options, args) = parser.parse_args() + + inputFile = open(options.inputFileName) + outputFastaFile = open(options.outputFileName, "w") + + inSequenceName = False + inQualityName = False + inSequence = False + inQuality = True + sequenceName = None + lineNumber = 1 + + for line in inputFile: + + if inSequenceName: + inSequence = True + inSequenceName = False + elif inQualityName: + inQuality = True + inQualityName = False + elif inSequence: + inQualityName = True + inSequence = False + elif inQuality: + inSequenceName = True + inQuality = False + else: + sys.exit("Error! Do not in which section I am (line is %d)" % (lineNumber)) + + line = line.strip() + if inSequenceName: + if line[0] != "@": + sys.exit("Error! Sequence name '%s' does not start with '@' (line is %d)" % (line, lineNumber)) + sequenceName = line[1:] + outputFastaFile.write(">%s\n" % (sequenceName)) + elif inQualityName: + if line[0] != "+": + sys.exit("Error! Quality name '%s' does not start with '+' (line is %d)" % (line, lineNumber)) + if len(line) > 1 and sequenceName != line[1:]: + sys.exit("Names in sequence and qual are different (%s, %s) (line is %d)" % (sequenceName, line[1:], lineNumber)) + elif inSequence: + outputFastaFile.write("%s\n" % (line)) + elif inQuality: + pass + lineNumber += 1 + + inputFile.close() + outputFastaFile.close()