mirror of
https://github.com/kidfromjupiter/nearby.git
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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// Copyright 2025 Google LLC
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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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// https://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 "internal/base/masker.h"
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#include <string>
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#include "absl/strings/string_view.h"
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namespace nearby {
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namespace masker {
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namespace {
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// The default mask character to use for masking. This is a single asterisk.
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constexpr char kDefaultMaskChar = '*';
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// The default start index to use for masking.
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constexpr int kDefaultMaskStartIndex = 2;
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} // namespace
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std::string Mask(absl::string_view input) {
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return Mask(input, kDefaultMaskChar, kDefaultMaskStartIndex);
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}
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std::string Mask(absl::string_view input, char mask, int start_index) {
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if (start_index < 0) {
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start_index = 0;
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}
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if (start_index >= input.length()) {
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return std::string(input);
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}
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std::string result = std::string(input);
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for (int i = start_index; i < input.length(); ++i) {
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result[i] = mask;
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}
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return result;
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}
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} // namespace masker
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} // namespace nearby
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