62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
/* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/stream_executor/lib/path.h"
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#include "absl/strings/str_cat.h"
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#include "absl/strings/string_view.h"
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namespace stream_executor {
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namespace port {
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namespace internal {
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static bool IsAbsolutePath(absl::string_view path) {
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return !path.empty() && path[0] == '/';
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}
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// For an array of paths of length count, append them all together,
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// ensuring that the proper path separators are inserted between them.
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std::string JoinPathImpl(std::initializer_list<absl::string_view> paths) {
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std::string result;
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for (absl::string_view path : paths) {
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if (path.empty()) continue;
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if (result.empty()) {
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result = std::string(path);
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continue;
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}
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if (result[result.size() - 1] == '/') {
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if (IsAbsolutePath(path)) {
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absl::StrAppend(&result, path.substr(1));
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} else {
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absl::StrAppend(&result, path);
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}
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} else {
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if (IsAbsolutePath(path)) {
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absl::StrAppend(&result, path);
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} else {
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absl::StrAppend(&result, "/", path);
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}
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}
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}
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return result;
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}
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} // namespace internal
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} // namespace port
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} // namespace stream_executor
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