62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
//
|
|
// Copyright 2019 The Abseil Authors.
|
|
//
|
|
// 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
|
|
//
|
|
// https://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.
|
|
|
|
#ifndef ABSL_FLAGS_INTERNAL_PATH_UTIL_H_
|
|
#define ABSL_FLAGS_INTERNAL_PATH_UTIL_H_
|
|
|
|
#include "absl/base/config.h"
|
|
#include "absl/strings/string_view.h"
|
|
|
|
namespace absl {
|
|
ABSL_NAMESPACE_BEGIN
|
|
namespace flags_internal {
|
|
|
|
// A portable interface that returns the basename of the filename passed as an
|
|
// argument. It is similar to basename(3)
|
|
// <https://linux.die.net/man/3/basename>.
|
|
// For example:
|
|
// flags_internal::Basename("a/b/prog/file.cc")
|
|
// returns "file.cc"
|
|
// flags_internal::Basename("file.cc")
|
|
// returns "file.cc"
|
|
inline absl::string_view Basename(absl::string_view filename) {
|
|
auto last_slash_pos = filename.find_last_of("/\\");
|
|
|
|
return last_slash_pos == absl::string_view::npos
|
|
? filename
|
|
: filename.substr(last_slash_pos + 1);
|
|
}
|
|
|
|
// A portable interface that returns the directory name of the filename
|
|
// passed as an argument, including the trailing slash.
|
|
// Returns the empty string if a slash is not found in the input file name.
|
|
// For example:
|
|
// flags_internal::Package("a/b/prog/file.cc")
|
|
// returns "a/b/prog/"
|
|
// flags_internal::Package("file.cc")
|
|
// returns ""
|
|
inline absl::string_view Package(absl::string_view filename) {
|
|
auto last_slash_pos = filename.find_last_of("/\\");
|
|
|
|
return last_slash_pos == absl::string_view::npos
|
|
? absl::string_view()
|
|
: filename.substr(0, last_slash_pos + 1);
|
|
}
|
|
|
|
} // namespace flags_internal
|
|
ABSL_NAMESPACE_END
|
|
} // namespace absl
|
|
|
|
#endif // ABSL_FLAGS_INTERNAL_PATH_UTIL_H_
|