fix: normalize some punctuation and special characters in text_to_ipa function

ipa/ipa.py

@@ -125,6 +125,9 @@ def text_to_ipa(
     text = lower_formosan_text(text, language)
     # text = text.replace("'", "’")
     text = re.sub(r"\s+", " ", text)  # remove extra spaces
+    text = re.sub(r"[\"\-\“\”]", "", text)  # remove punctuation
+    text = re.sub(r"[\ʼ\’\']", "ʼ", text)  # normalize ʼ
+    text = text.replace("^", "⌃")  # normalize ⌃
 
     ipa, unknown_chars = convert_to_ipa(text, g2p_object[language])