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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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_piece_util.h"
#include <algorithm>
#include <string>
#include <vector>
using namespace std;
vector<StringPiece> SplitStringPiece(StringPiece input, char sep) {
vector<StringPiece> elems;
elems.reserve(count(input.begin(), input.end(), sep) + 1);
StringPiece::const_iterator pos = input.begin();
for (;;) {
const char* next_pos = find(pos, input.end(), sep);
if (next_pos == input.end()) {
elems.push_back(StringPiece(pos, input.end() - pos));
break;
}
elems.push_back(StringPiece(pos, next_pos - pos));
pos = next_pos + 1;
}
return elems;
}
string JoinStringPiece(const vector<StringPiece>& list, char sep) {
if (list.empty()) {
return "";
}
string ret;
{
size_t cap = list.size() - 1;
for (size_t i = 0; i < list.size(); ++i) {
cap += list[i].len_;
}
ret.reserve(cap);
}
for (size_t i = 0; i < list.size(); ++i) {
if (i != 0) {
ret += sep;
}
ret.append(list[i].str_, list[i].len_);
}
return ret;
}
bool EqualsCaseInsensitiveASCII(StringPiece a, StringPiece b) {
if (a.len_ != b.len_) {
return false;
}
for (size_t i = 0; i < a.len_; ++i) {
if (ToLowerASCII(a.str_[i]) != ToLowerASCII(b.str_[i])) {
return false;
}
}
return true;
}
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