End all sentences with punctuation. also Include some forgotten files

tts/text/pipeline_components/normalization/strip_and_add_ending_period.py

@@ -0,0 +1,22 @@
+
+# If a sentence doesn't end in expected ending punctuation, we'll want to auto-punctuate.
+EXPECTED_ENDING_PUNCTUATIONS = [
+    '!',
+    '.', 
+    '?',
+    '…',
+    '\'',
+    '\"',
+]
+
+PERIOD = '.'
+
+# Prevent model from having a "stroke" by adding missing ending punctuation.
+def strip_and_add_ending_period(input_text: str) -> str:
+    # TODO: This isn't  great for all languages.
+    input_text = input_text.strip()
+    ends_with_period = any([input_text.endswith(e) for e in EXPECTED_ENDING_PUNCTUATIONS])
+    if not ends_with_period: 
+        input_text += PERIOD
+    return input_text
+