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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/common.h"
namespace td {
enum class UnicodeSimpleCategory { Unknown, Letter, DecimalNumber, Number, Separator };
UnicodeSimpleCategory get_unicode_simple_category(uint32 code);
/**
* Prepares unicode character for search, leaving only digits and lowercased letters.
* Return code of replacing character or 0 if the character should be skipped.
*/
uint32 prepare_search_character(uint32 code);
/**
* Converts unicode character to lower case.
*/
uint32 unicode_to_lower(uint32 code);
} // namespace td
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