kun yu 77e1ddd81b branch-0.4.0
Former-commit-id: a4df63653202df32d0b983de27f5c969905d17ac
2019-07-30 10:23:34 +08:00

71 lines
2.1 KiB
C++

// 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.
#pragma once
#include <string>
#include <utility>
#include <vector>
#include "arrow/status.h"
namespace arrow {
namespace fs {
namespace internal {
constexpr char kSep = '/';
// Computations on abstract paths (not local paths with system-dependent behaviour).
// Abstract paths are typically used in URIs.
// Split an abstract path into its individual components.
ARROW_EXPORT
std::vector<std::string> SplitAbstractPath(const std::string& s);
// Return the parent directory and basename of an abstract path. Both values may be
// empty.
ARROW_EXPORT
std::pair<std::string, std::string> GetAbstractPathParent(const std::string& s);
// Validate the components of an abstract path.
ARROW_EXPORT
Status ValidateAbstractPathParts(const std::vector<std::string>& parts);
// Append a non-empty stem to an abstract path.
ARROW_EXPORT
std::string ConcatAbstractPath(const std::string& base, const std::string& stem);
ARROW_EXPORT
std::string EnsureTrailingSlash(const std::string& s);
// Join the components of an abstract path.
template <class StringIt>
std::string JoinAbstractPath(StringIt it, StringIt end) {
std::string path;
for (; it != end; ++it) {
if (!path.empty()) {
path += kSep;
}
path += *it;
}
return path;
}
} // namespace internal
} // namespace fs
} // namespace arrow