A R R R Associates
29 lines
711 B
Python
29 lines
711 B
Python
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import csv
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import io
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import re
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PAN_RE = re.compile(r"^[A-Z]{5}[0-9]{4}[A-Z]$")
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GSTIN_RE = re.compile(r"^[0-9]{2}[A-Z]{5}[0-9]{4}[A-Z][1-9A-Z]Z[0-9A-Z]$")
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TAN_RE = re.compile(r"^[A-Z]{4}[0-9]{5}[A-Z]$")
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MOBILE_RE = re.compile(r"^[6-9][0-9]{9}$")
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PIN_RE = re.compile(r"^[0-9]{6}$")
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def normalize_text(value):
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if value is None:
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return None
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text = str(value).strip()
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return text or None
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def normalize_upper(value):
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value = normalize_text(value)
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return value.upper() if value else None
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def build_csv(rows, headers):
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output = io.StringIO()
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writer = csv.writer(output)
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writer.writerow(headers)
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for row in rows:
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writer.writerow(row)
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return output.getvalue()
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