| // 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; |
| } |