/* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ parcel Lucy; /** Utilities for parsing, interpreting and generating index file names. */ inert class Lucy::Util::IndexFileNames cnick IxFileNames { /** Skip past the first instance of an underscore in the CharBuf, then * attempt to decode a base 36 number. For example, "snapshot_5.json" * yields 5, and "seg_a1" yields 27. * * @return a generation number, or 0 if no number can be extracted. */ inert uint64_t extract_gen(const CharBuf *name); /** Return the name of the latest generation snapshot file in the Folder, * or NULL if no such file exists. */ inert incremented nullable CharBuf* latest_snapshot(Folder *folder); /** Split the path on '/' and assign the last component to * target, which will remain valid only as long as * path is unmodified. Trailing slashes will be stripped. * * @param target The target string to assign to. * @return target, allowing an assignment idiom. */ inert incremented ZombieCharBuf* local_part(const CharBuf *path, ZombieCharBuf *target); }