diff commons/core/parsing/MummerParser.py @ 36:44d5973c188c

Uploaded

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commons/core/parsing/MummerParser.py	Tue Apr 30 15:02:29 2013 -0400
@@ -0,0 +1,93 @@
+#
+# 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 commons.core.parsing.MapperParser import MapperParser
+from SMART.Java.Python.structure.Mapping import Mapping
+from SMART.Java.Python.structure.SubMapping import SubMapping
+
+class MummerParser(MapperParser):
+    """A class that parses the output of Mummer format"""
+
+    def __init__(self, fileName, verbosity = 0):
+        super(MummerParser, self).__init__(fileName, verbosity)
+
+
+    def __del__(self):
+        super(MummerParser, self).__del__()
+
+
+    def getFileFormats():
+        return ["mummer"]
+    getFileFormats = staticmethod(getFileFormats)
+
+
+    def skipFirstLines(self):
+        pass
+
+
+    def parseLine(self, line):
+        mapping = Mapping()
+
+        subMapping = SubMapping()
+
+        # handle header
+        m = re.search(r"^>\s+(\S+)\s+Reverse\s+Len\s+=\s+(\d+)$", line)
+        if m != None:
+            subMapping.queryInterval.setName(m.group(1))
+            subMapping.queryInterval.setSize(int(m.group(2)))
+            subMapping.queryInterval.setDirection(-1)
+        else:
+            m = re.search(r"^>\s+(\S+)\s+Len\s+=\s+(\d+)$", line)
+            if m != None:
+                subMapping.queryInterval.setName(m.group(1))
+                subMapping.queryInterval.setSize(int(m.group(2)))
+                subMapping.queryInterval.setDirection(1)
+            else :
+                sys.exit("Header line %d '%s' is strange in Mummer file" % (self.currentLineNb, line))
+
+        for line in self.handle:
+            self.currentLineNb += 1
+            break
+        line = line.strip()
+
+        # handle line
+        m = re.search(r"^(\w+)\s+(\d+)\s+(\d+)\s+(\d+)$", line)
+        if m != None:
+            subMapping.targetInterval.setName(m.group(1))
+            subMapping.targetInterval.setStart(int(m.group(2)))
+            subMapping.queryInterval.setStart(int(m.group(3)))
+            subMapping.targetInterval.setSize(int(m.group(4)))
+        else:
+            sys.exit("Line %d '%s' is strange in Mummer file" % (self.currentLineNb, line))
+
+        mapping.addSubMapping(subMapping)
+
+        return mapping