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Add percentage support to _num2chinese function #3651

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Add percentage support to _num2chinese function #3651

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13 changes: 11 additions & 2 deletions TTS/tts/utils/text/chinese_mandarin/numbers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,11 @@ def _num2chinese(num: str, big=False, simp=True, o=False, twoalt=False) -> str:
str: converted number as hanzi characters
"""

# handling percentage
is_percentage = num.endswith("%")
if is_percentage:
num = num[:-1]

# check num first
nd = str(num)
if abs(float(nd)) >= 1e48:
Expand Down Expand Up @@ -98,6 +103,10 @@ def _num2chinese(num: str, big=False, simp=True, o=False, twoalt=False) -> str:
if remainder:
result.append(c_symbol[2])
result.append("".join(c_basic[int(ch)] for ch in remainder))

# Append percentage symbol if applicable
if is_percentage:
result = ["百分之"] + result
return "".join(result)


Expand All @@ -110,7 +119,7 @@ def _number_replace(match) -> str:
Returns:
str: replaced characters for the numbers
"""
match_str: str = match.group()
match_str: str = match.group().replace(",", "")
return _num2chinese(match_str)


Expand All @@ -123,5 +132,5 @@ def replace_numbers_to_characters_in_text(text: str) -> str:
Returns:
str: output text
"""
text = re.sub(r"[0-9]+", _number_replace, text)
text = re.sub(r"[0-9]{1,3}(?:,[0-9]{3})*(?:\.[0-9]+)?%?", _number_replace, text)
return text
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