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authorGravatar Abseil Team <absl-team@google.com>2019-08-08 10:56:58 -0700
committerGravatar CJ Johnson <johnsoncj@google.com>2019-08-08 14:19:45 -0400
commitaa844899c937bde5d2b24f276b59997e5b668bde (patch)
treecd18e64150abc74b85bbbf6abf990f66fa47cacd /absl/flags/internal/path_util.h
parentfcb104594b0bb4b8ac306cb2f55ecdad40974683 (diff)
Creation of LTS branch "lts_2019_08_08"20190808
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Diffstat (limited to 'absl/flags/internal/path_util.h')
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diff --git a/absl/flags/internal/path_util.h b/absl/flags/internal/path_util.h
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+//
+// 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/strings/match.h"
+#include "absl/strings/string_view.h"
+
+namespace absl {
+inline namespace lts_2019_08_08 {
+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
+} // inline namespace lts_2019_08_08
+} // namespace absl
+
+#endif // ABSL_FLAGS_INTERNAL_PATH_UTIL_H_