Function re_replacer

pandas/core/array_algos/replace.py:137–141

(s)

    if isna(value) or not isinstance(value, str):

        def re_replacer(s):
            if is_re(rx) and isinstance(s, str):
                return value if rx.search(s) is not None else s
            else:
                return s

    else:
        # value is guaranteed to be a string here, s can be either a string