[fix] english tn, whitelist exclude punct (#228)

Author: xingchensong

tn/english/rules/whitelist.py

@@ -106,7 +106,7 @@ def _get_whitelist_graph(input_case,
 
         states.extend(additional_options)
         state_graph = pynini.string_map(states)
-        graph |= pynini.closure(self.NOT_SPACE, 1) + pynini.union(
+        graph |= pynini.closure(self.ALPHA, 1) + pynini.union(
             ", ", ",") + pynini.invert(state_graph).optimize()
 
         self.graph = graph.optimize()

tn/english/test/data/whitelist.txt

@@ -3,3 +3,4 @@ Hon. => honorable
 Mt. => Mount
 Maj. => Major
 Rev. => Reverend
+Stroudsburg, PA => Stroudsburg, Pennsylvania