Update app.py

app.py

@@ -7,7 +7,7 @@ from operator import itemgetter
 # TODO: reverse transliterate? 
 
 
-def get_lang_description_from_mapping_name(string_to_check):
+def get_lang_description_from_mapping_name(string_to_check):  
   if "generic-Latn" == string_to_check: 
     return "Generic Latin Script"
     
@@ -15,28 +15,24 @@ def get_lang_description_from_mapping_name(string_to_check):
     return None       
 
   substrings = string_to_check.split("-")
-  substrings = substrings[:2] # the first two
-  print(substrings)
+  substrings = substrings[0, 1] # remove the last one
   string_to_check = "-".join(substrings)
   
   
-
-  description = None
-  lang = langcodes.get(string_to_check)
-  if lang: 
-    items = []
-    for key, value in lang.describe().items():
-      if key == "language":
-        iso_code = lang.to_alpha3()
-        value = f"[{value}](https://iso639-3.sil.org/code/{iso_code})"
-      items.append(f"{key}: {value}")
-      
-  
-    description = ", ".join(items)  
-    if substrings[-1] == "red":
-      description = description + " (reduced)"    
-  return description
-
+  try:
+    description = None
+    lang = langcodes.get(string_to_check)
+    if lang: 
+      items = []
+      for key, value in lang.describe().items():
+        if key == "language":
+          iso_code = lang.to_alpha3()
+          value = f"[{value}](https://iso639-3.sil.org/code/{iso_code})"
+        items.append(f"{key}: {value}")
+        
+    
+      description = ", ".join(items)
+    return description
 
 
 def get_valid_epitran_mappings_list():
@@ -62,11 +58,12 @@ if __name__ == "__main__":
   st.write("Epitran is a library and tool for transliterating orthographic text as IPA (International Phonetic Alphabet), by Mortensen, David R.  and Dalmia, Siddharth and Littell, Patrick.") 
   
   valid_epitran_mappings = get_valid_epitran_mappings_list()
+  index_of_swa_latn = valid_epitran_mappings .index("swa-Latn")
   st.write(f"It supports converting many writing sytems to IPA symbols, including approximately {len(valid_epitran_mappings)} languages/scripts, listed below:")
 
   #st.write(valid_epitran_mappings)
   
-  selected_mapping = st.selectbox("Select input language/script:", 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}")