* py_imc_termite.pyx: remove json loads parse_float option

* imc_raw.hpp: catch empty/invalid file to avoid seg fault

cython/py_imc_termite.pyx

@@ -22,7 +22,7 @@ cdef class imctermite:
   # get JSON list of channels
   def get_channels(self, bool data):
     chnlst = self.cpp_imc.get_channels(True,data)
-    chnlstjn = [jn.loads(chn.decode(errors="ignore"),parse_float=decimal.Decimal) for chn in chnlst]
+    chnlstjn = [jn.loads(chn.decode(errors="ignore")) for chn in chnlst]
     return chnlstjn
 
   # print channels
@@ -32,7 +32,7 @@ cdef class imctermite:
   # print table including channels
   def print_table(self, string outputfile):
     chnlst = self.cpp_imc.get_channels(True,True)
-    chnlstjn = [jn.loads(chn.decode(errors="ignore"),parse_float=decimal.Decimal) for chn in chnlst]
+    chnlstjn = [jn.loads(chn.decode(errors="ignore")) for chn in chnlst]
     with open(outputfile.decode(),'w') as fout:
       for chn in chnlstjn:
         fout.write('#' +str(chn['xname']).rjust(19)+str(chn['yname']).rjust(20)+'\n')

lib/imc_raw.hpp

@@ -174,7 +174,7 @@ namespace imc
     // check consistency of blocks
     void check_consistency()
     {
-      for ( unsigned long int b = 0; b < this->rawblocks_.size()-1; b++ )
+      for ( unsigned long int b = 0; b < this->rawblocks_.size()-1 && this->rawblocks_.size() > 0; b++ )
       {
         if ( this->rawblocks_[b].get_end() >= this->rawblocks_[b+1].get_begin() )
         {

src/main.cpp

@@ -178,6 +178,13 @@ int main(int argc, char* argv[])
       return 1;
     }
 
+    // catch invalid or empty ".raw" file
+    if ( imcraw.blocks().size() == 0 )
+    {
+      std::cerr<<"this appears to be an empty/invalid '.raw' file since no blocks were found"<<"\n";
+      return 1;
+    }
+
     // list blocks
     if ( cfgopts.count("listblocks") == 1 )
     {