refs dictation-toolbox#385, dictation-toolbox#54: resolve odd stack f…

…rame index error

castervoice/lib/ccr/core/nav.py

@@ -12,7 +12,7 @@
 from castervoice.lib.merge.additions import IntegerRefST
 from castervoice.lib.merge.mergerule import MergeRule
 from castervoice.lib.merge.state.actions import AsynchronousAction, ContextSeeker
-from castervoice.lib.merge.state.actions2 import UntilCancelled
+from castervoice.lib.merge.state.actions2 import UntilCancelled, NullAction
 from castervoice.lib.merge.state.short import S, L, R
 
 _tpd = text_punc_dict()
@@ -35,6 +35,7 @@ class Navigation(MergeRule):
     mapping = {
         # "periodic" repeats whatever comes next at 1-second intervals until "terminate"
         # or "escape" (or your SymbolSpecs.CANCEL) is spoken or 100 tries occur
+
         "periodic":
             ContextSeeker(forward=[
                 L(

castervoice/lib/ctrl/mgr/rule_details.py

@@ -27,11 +27,17 @@ def __init__(self, name=None, executable=None, title=None, grammar_name=None,
         self.watch_exclusion = watch_exclusion
 
         # Python black magic to determine which file to track:
-        frame = inspect.stack()[1]
+        stack = inspect.stack(0)
+        self._filepath = RuleDetails._calculate_filepath_from_frame(stack, 1)
+
+    @staticmethod
+    def _calculate_filepath_from_frame(stack, index):
+        frame = stack[index]
         module = inspect.getmodule(frame[0])
-        self._filepath = module.__file__.replace("\\", "/")
-        if self._filepath.endswith("pyc"):
-            self._filepath = self._filepath[:-1]
+        filepath = module.__file__.replace("\\", "/")
+        if filepath.endswith("pyc"):
+            filepath = filepath[:-1]
+        return filepath
 
     def get_filepath(self):
         return self._filepath