Abseil Common Libraries (C++) (grcp 依赖)
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41 lines
1.4 KiB
41 lines
1.4 KiB
7 years ago
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// Copyright 2017 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/strings/match.h"
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#include "absl/strings/internal/memutil.h"
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namespace absl {
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namespace {
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bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
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return (piece1.size() == piece2.size() &&
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0 == strings_internal::memcasecmp(piece1.data(), piece2.data(),
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piece1.size()));
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// memcasecmp uses ascii_tolower().
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}
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} // namespace
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bool StartsWithIgnoreCase(absl::string_view text, absl::string_view preffix) {
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return (text.size() >= preffix.size()) &&
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CaseEqual(text.substr(0, preffix.size()), preffix);
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}
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bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix) {
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return (text.size() >= suffix.size()) &&
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CaseEqual(text.substr(text.size() - suffix.size()), suffix);
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}
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} // namespace absl
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