Update app.py

app.py

@@ -41,6 +41,8 @@ def get_valid_epitran_mappings_list():
   map_path = Path(epitran.__path__[0]) / "data" / "map"
   map_files = map_path.glob("*.*")
   valid_mappings = [map_file.stem for map_file in map_files]
+  valid_mappings.append("cmn-Hans")
+  
   problem_mappings = ['generic-Latn',
  'tur-Latn-bab',
  'ood-Latn-sax',
@@ -48,6 +50,7 @@ def get_valid_epitran_mappings_list():
  'vie-Latn-ce',
  'vie-Latn-no',
  'kaz-Cyrl-bab'] # https://github.com/dmort27/epitran/issues/98
+
   filtered_mappings = [mapping for mapping in valid_mappings if mapping not in problem_mappings]
   
   return filtered_mappings 
@@ -66,16 +69,25 @@ if __name__ == "__main__":
   #st.write(valid_epitran_mappings)
   
   selected_mapping = st.selectbox("Select input language/script:", valid_epitran_mappings, index=index_of_swa_latn)
+
+  
   description = get_lang_description_from_mapping_name(selected_mapping)
   st.write(f"Selected input language/script: {description}")
   
   
+  if selected_mapping = "cmn-Hans":
+    st.info("Chinese requires a special dictionary. Downloading now")
+    epitran.download.cedict()  
+  
+  st.info("attempting to instantiate epitran transliterator for your language/script")
+  epi = epitran.Epitran(selected_mapping)
+  
+  
   input_text = st.text_area(label="Whatever you type here will be transliterated!", value="Gari langu linaloangama limejaa na mikunga")
   
 #  combined_code = "-".join([iso_lang_code, iso_script_code])
 #  st.write(f"Combined code: {combined_code}")
-  st.info("attempting to instantiate epitran transliterator for your language/script")
-  epi = epitran.Epitran(selected_mapping)
+
 
   st.info(f"transliterating `{input_text}`\n\tusing {selected_mapping}...")  
   transliteration = epi.transliterate(input_text)