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// Copyright 2015 The Weave Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string.h>
#include <algorithm>
#include <utility>
#include <base/strings/string_util.h>
#include "src/string_utils.h"
namespace weave {
namespace {
bool SplitAtFirst(const std::string& str,
const std::string& delimiter,
std::string* left_part,
std::string* right_part,
bool trim_whitespaces) {
bool delimiter_found = false;
std::string::size_type pos = str.find(delimiter);
if (pos != std::string::npos) {
*left_part = str.substr(0, pos);
*right_part = str.substr(pos + delimiter.size());
delimiter_found = true;
} else {
*left_part = str;
right_part->clear();
}
if (trim_whitespaces) {
base::TrimWhitespaceASCII(*left_part, base::TRIM_ALL, left_part);
base::TrimWhitespaceASCII(*right_part, base::TRIM_ALL, right_part);
}
return delimiter_found;
}
} // namespace
std::vector<std::string> Split(const std::string& str,
const std::string& delimiter,
bool trim_whitespaces,
bool purge_empty_strings) {
std::vector<std::string> tokens;
for (std::string::size_type i = 0;;) {
const std::string::size_type pos =
delimiter.empty() ? (i + 1) : str.find(delimiter, i);
std::string tmp_str{str.substr(i, pos - i)};
if (trim_whitespaces)
base::TrimWhitespaceASCII(tmp_str, base::TRIM_ALL, &tmp_str);
if (!tmp_str.empty() || !purge_empty_strings)
tokens.emplace_back(std::move(tmp_str));
if (pos >= str.size())
break;
i = pos + delimiter.size();
}
return tokens;
}
std::pair<std::string, std::string> SplitAtFirst(const std::string& str,
const std::string& delimiter,
bool trim_whitespaces) {
std::pair<std::string, std::string> pair;
SplitAtFirst(str, delimiter, &pair.first, &pair.second, trim_whitespaces);
return pair;
}
} // namespace weave
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