Mercurial > repos > urgi-team > teiso
diff TEisotools-1.1.a/commons/core/parsing/GtfParser.py @ 16:836ce3d9d47a draft default tip
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author | urgi-team |
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date | Thu, 21 Jul 2016 07:42:47 -0400 |
parents | 255c852351c5 |
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--- a/TEisotools-1.1.a/commons/core/parsing/GtfParser.py Thu Jul 21 07:36:44 2016 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,167 +0,0 @@ -# -# 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. -# -import re -import sys -from SMART.Java.Python.structure.Interval import Interval -from SMART.Java.Python.structure.Transcript import Transcript -from commons.core.parsing.TranscriptListParser import TranscriptListParser - - -class GtfParser(TranscriptListParser): - """A class that parses a GTF file and create a transcript list""" - - - def __init__(self, fileName, verbosity = 0, assemblyTools=False): - super(GtfParser, self).__init__(fileName, verbosity) - self._assemblyTools=assemblyTools - - - def __del__(self): - super(GtfParser, self).__del__() - - - def getFileFormats(): - return ["gtf", "gtf2"] - getFileFormats = staticmethod(getFileFormats) - - - def skipFirstLines(self): - pass - - - def parseLine(self, line): - if line[0] == "#": - return None - m = re.search(r"^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\d+)\s+(\d+)\s+(\S+)\s+([+-.])\s+(\S+)\s+(\S.*)$", line) - if m == None: - raise Exception("\nLine %d '%s' does not have a GTF format\n" % (self.currentLineNb, line)) - if(self._assemblyTools==False): - interval = Interval() - interval.setChromosome(m.group(1)) - interval.setName("unnamed transcript") - interval.setStart(min(int(m.group(4)), int(m.group(5)))) - interval.setEnd(max(int(m.group(4)), int(m.group(5)))) - if m.group(7) == ".": - interval.setDirection("+") - else: - interval.setDirection(m.group(7)) - if m.group(6).isdigit(): - interval.setTagValue("score", m.group(6)) - type = m.group(3) - - if type not in ("transcript", "exon"): - return None - - remainings = m.group(9).split(";") - for remaining in remainings: - remaining = remaining.strip() - if remaining == "": - continue - parts = remaining.split(" ", 1) - field = parts[0].strip() - value = " ".join(parts[1:]).strip(" \"") - if field == "transcript_id": - interval.setTagValue("ID", value) - elif field == "gene_name": - interval.setName(value) - elif field == "transcript_name": - interval.setName(value) - elif field == "exon_number": - continue - else: - try: - intValue = int(value) - interval.setTagValue(field, intValue) - except ValueError: - interval.setTagValue(field, value) - - self.currentTranscriptAddress = self.previousTranscriptAddress - if self.currentTranscript == None or interval.getTagValue("ID") != self.currentTranscript.getTagValue("ID"): - transcript = self.currentTranscript - self.currentTranscript = Transcript() - self.currentTranscript.copy(interval) - self.currentTranscript.setTagValue("feature", "transcript") - self.previousTranscriptAddress = self.currentAddress - return transcript - if type == "exon": - self.currentTranscript.addExon(interval) - return None - else: - if m.group(7) != ".": - interval = Interval() - interval.setChromosome(m.group(1)) - interval.setName("unnamed transcript") - interval.setStart(min(int(m.group(4)), int(m.group(5)))) - interval.setEnd(max(int(m.group(4)), int(m.group(5)))) - if m.group(7) == ".": - interval.setDirection("+") - else: - interval.setDirection(m.group(7)) - if m.group(6).isdigit(): - interval.setTagValue("score", m.group(6)) - type = m.group(3) - - if type not in ("transcript", "exon"): - return None - - remainings = m.group(9).split(";") - for remaining in remainings: - remaining = remaining.strip() - if remaining == "": - continue - parts = remaining.split(" ", 1) - field = parts[0].strip() - value = " ".join(parts[1:]).strip(" \"") - if field == "transcript_id": - interval.setTagValue("ID", value) - elif field == "gene_name": - interval.setName(value) - elif field == "transcript_name": - interval.setName(value) - elif field == "exon_number": - continue - else: - try: - intValue = int(value) - interval.setTagValue(field, intValue) - except ValueError: - interval.setTagValue(field, value) - - self.currentTranscriptAddress = self.previousTranscriptAddress - if self.currentTranscript == None or interval.getTagValue("ID") != self.currentTranscript.getTagValue("ID"): - transcript = self.currentTranscript - self.currentTranscript = Transcript() - self.currentTranscript.copy(interval) - self.currentTranscript.setTagValue("feature", "transcript") - self.previousTranscriptAddress = self.currentAddress - return transcript - if type == "exon": - self.currentTranscript.addExon(interval) - return None