Merge pull request #1976 from radosuav/otb_double_quotes

[processing] avoid consecutive quotes when calling OTB algorithms

Author: alexbruy

python/plugins/processing/algs/otb/OTBUtils.py

@@ -29,6 +29,7 @@
 __revision__ = '$Format:%H$'
 
 import os
+import re
 from PyQt4.QtCore import QCoreApplication
 from qgis.core import QgsApplication
 import subprocess
@@ -130,7 +131,7 @@ def executeOtb(commands, progress):
         loglines = []
         loglines.append(OTBUtils.tr("OTB execution console output"))
         os.putenv('ITK_AUTOLOAD_PATH', OTBUtils.otbLibPath())
-        fused_command = ''.join(['"%s" ' % c for c in commands])
+        fused_command = ''.join(['"%s" ' % re.sub(r'^"|"$', '', c) for c in commands])
         proc = subprocess.Popen(fused_command, shell=True, stdout=subprocess.PIPE, stdin=open(os.devnull),stderr=subprocess.STDOUT, universal_newlines=True).stdout
         for line in iter(proc.readline, ""):
             if "[*" in line: