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//
// Copyright 2020 Google Inc.
//
// 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
//
// 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.
//
#include "string_utils.h"
#include <algorithm>
#include <cctype>
#include <iterator>
#include <string>
namespace gtx {
std::string TrimWhitespace(std::string str) {
auto first_nonwhitespace_iter =
std::find_if_not(str.begin(), str.end(), std::isspace);
auto trimmed_leading = str.substr(first_nonwhitespace_iter - str.begin(),
str.end() - first_nonwhitespace_iter);
auto last_nonwhitespace_iter = std::find_if_not(
trimmed_leading.rbegin(), trimmed_leading.rend(), std::isspace);
return trimmed_leading.substr(
0, trimmed_leading.rend() - last_nonwhitespace_iter);
}
} // namespace gtx