mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-12 11:12:16 +00:00
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
|
|
This file is part of TON Blockchain Library.
|
|
|
|
TON Blockchain Library is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
TON Blockchain Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Copyright 2017-2020 Telegram Systems LLP
|
|
*/
|
|
|
|
#include "td/utils/PathView.h"
|
|
|
|
#include "td/utils/misc.h"
|
|
|
|
namespace td {
|
|
|
|
PathView::PathView(Slice path) : path_(path) {
|
|
last_slash_ = narrow_cast<int32>(path_.size()) - 1;
|
|
while (last_slash_ >= 0 && !is_slash(path_[last_slash_])) {
|
|
last_slash_--;
|
|
}
|
|
|
|
last_dot_ = static_cast<int32>(path_.size());
|
|
for (auto i = last_dot_ - 1; i > last_slash_ + 1; i--) {
|
|
if (path_[i] == '.') {
|
|
last_dot_ = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Slice PathView::relative(Slice path, Slice dir, bool force) {
|
|
if (begins_with(path, dir)) {
|
|
path.remove_prefix(dir.size());
|
|
return path;
|
|
}
|
|
if (force) {
|
|
return Slice();
|
|
}
|
|
return path;
|
|
}
|
|
|
|
Slice PathView::dir_and_file(Slice path) {
|
|
auto last_slash = static_cast<int32>(path.size()) - 1;
|
|
while (last_slash >= 0 && !is_slash(path[last_slash])) {
|
|
last_slash--;
|
|
}
|
|
if (last_slash < 0) {
|
|
return Slice();
|
|
}
|
|
last_slash--;
|
|
while (last_slash >= 0 && !is_slash(path[last_slash])) {
|
|
last_slash--;
|
|
}
|
|
if (last_slash < 0) {
|
|
return Slice();
|
|
}
|
|
return path.substr(last_slash + 1);
|
|
}
|
|
|
|
} // namespace td
|