util.py

# Copyright 2022-2024 Diffblue Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import re

def make_filename(name):
    """
    Makes a filename-safe stub from an arbitrary title.
    Ex.: "My Life (And Hard Times)" -> "my_life_and_hard_times"
    """
    return re.sub(r"[^A-Za-z0-9]+", "_", name).strip("_").lower()