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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_STRING_MATCHING_TOKENIZED_STRING_H_
#define CHROMEOS_ASH_COMPONENTS_STRING_MATCHING_TOKENIZED_STRING_H_
#include <string_view>
#include <vector>
#include "ui/gfx/range/range.h"
namespace ash::string_matching {
// TokenizedString takes a string and breaks it down into token words.
class TokenizedString {
public:
enum class Mode {
// Break words into tokens at camel case, alpha/num, and white space
// boundaries.
kCamelCase,
// Break words into tokens at white space.
kWords,
};
typedef std::vector<std::u16string> Tokens;
typedef std::vector<gfx::Range> Mappings;
explicit TokenizedString(std::u16string text, Mode mode = Mode::kCamelCase);
TokenizedString(const TokenizedString&) = delete;
TokenizedString& operator=(const TokenizedString&) = delete;
~TokenizedString();
const std::u16string& text() const { return text_; }
const Tokens& tokens() const { return tokens_; }
const Mappings& mappings() const { return mappings_; }
private:
void Tokenize();
void TokenizeWords();
// Input text.
const std::u16string text_;
// Broken down tokens and the index mapping of tokens in original string.
Tokens tokens_;
Mappings mappings_;
};
} // namespace ash::string_matching
#endif // CHROMEOS_ASH_COMPONENTS_STRING_MATCHING_TOKENIZED_STRING_H_
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