import re as PI_RE

def FC_PREPROCESS_TEXT(ZVFCI_ST_TXT: str) -> str:

    if ZVFCI_ST_TXT is None:
        return ''

    ZV_ST_TXT = str(ZVFCI_ST_TXT).strip().lower()

    ZV_ST_TXT = ZV_ST_TXT.replace('/', ' ').replace('-', ' ').replace('_', ' ')

    ZV_ST_TXT = PI_RE.sub(r'[^a-z0-9\s]', ' ', ZV_ST_TXT)

    ZV_ST_TXT = PI_RE.sub(r'\s+', ' ', ZV_ST_TXT).strip()

    return ZV_ST_TXT