Added new Map attribute - emptyIsNone

If the emptyIsNone attribute is set to "1", the Python result
will be forced to Py_None if the referenced XML value is empty.

When checking if the value is empty, the XML value is right trimmed
to remove trailing spaces.  Only spaces are are removed.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/xmlpythonizer.h b/src/xmlpythonizer.h
index d6fa54c..f0efaee 100644
--- a/src/xmlpythonizer.h
+++ b/src/xmlpythonizer.h
@@ -41,6 +41,8 @@ typedef struct ptzMAP_s {
                                 // the rest of types, an XPath to XML data
         int fixed_list_size;    // Only to be used on lists
         char *list_index ;      // Only to be used on fixed lists
+        int emptyIsNone;        // Only for ptzINT/ptzFLOAT values
+                                // - if set to 1, empty input strings sets the result to Py_None
         struct ptzMAP_s *child; // Only used for type_value == pyDICT
         struct ptzMAP_s *next;  // Pointer chain