// Copyright 2017 The Abseil Authors.

//

// 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

//

//      https://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 "absl/strings/match.h"

#include "absl/strings/internal/memutil.h"

namespace absl {

ABSL_NAMESPACE_BEGIN

bool EqualsIgnoreCase(absl::string_view piece1,

                      absl::string_view piece2) noexcept {

  return (piece1.size() == piece2.size() &&

          0 == absl::strings_internal::memcasecmp(piece1.data(), piece2.data(),

                                                  piece1.size()));

  // memcasecmp uses absl::ascii_tolower().

}

bool StartsWithIgnoreCase(absl::string_view text,

                          absl::string_view prefix) noexcept {

  return (text.size() >= prefix.size()) &&

         EqualsIgnoreCase(text.substr(0, prefix.size()), prefix);

}

bool EndsWithIgnoreCase(absl::string_view text,

                        absl::string_view suffix) noexcept {

  return (text.size() >= suffix.size()) &&

         EqualsIgnoreCase(text.substr(text.size() - suffix.size()), suffix);

}

ABSL_NAMESPACE_END

}  // namespace absl