34 lines
900 B
C++
34 lines
900 B
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/common.h"
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namespace td {
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enum class UnicodeSimpleCategory { Unknown, Letter, DecimalNumber, Number, Separator };
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UnicodeSimpleCategory get_unicode_simple_category(uint32 code);
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/**
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* Prepares unicode character for search, leaving only digits and lowercased letters.
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* Return code of replacing character or 0 if the character should be skipped.
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*/
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uint32 prepare_search_character(uint32 code);
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/**
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* Converts unicode character to lower case.
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*/
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uint32 unicode_to_lower(uint32 code);
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/**
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* Removes diacritics from a unicode character.
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*/
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uint32 remove_diacritics(uint32 code);
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} // namespace td
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