predicate.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2022, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2022, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <seqan3/utility/char_operations/predicate_detail.hpp>
 
// ----------------------------------------------------------------------------
// General Purpose Char predicates
// ----------------------------------------------------------------------------
 
namespace seqan3
{
 
template <uint8_t interval_first, uint8_t interval_last>
    requires (interval_first <= interval_last)
inline constexpr auto is_in_interval = detail::is_in_interval_type<interval_first, interval_last>{};
 
template <int char_v>
inline constexpr auto is_char = detail::is_char_type<char_v>{};
 
inline constexpr auto is_eof = is_char<EOF>;
 
inline constexpr auto is_cntrl = is_in_interval<'\0', static_cast<char>(31)> || is_char<static_cast<char>(127)>;
 
inline constexpr auto is_print = is_in_interval<' ', '~'>;
 
inline constexpr auto is_space = is_in_interval<'\t', '\r'> || is_char<' '>;
 
inline constexpr auto is_blank = is_char<'\t'> || is_char<' '>;
 
inline constexpr auto is_graph = is_in_interval<'!', '~'>;
 
inline constexpr auto is_punct =
    is_in_interval<'!', '/'> || is_in_interval<':', '@'> || is_in_interval<'[', '`'> || is_in_interval<'{', '~'>;
 
inline constexpr auto is_alnum = is_in_interval<'0', '9'> || is_in_interval<'A', 'Z'> || is_in_interval<'a', 'z'>;
 
inline constexpr auto is_alpha = is_in_interval<'A', 'Z'> || is_in_interval<'a', 'z'>;
 
inline constexpr auto is_upper = is_in_interval<'A', 'Z'>;
 
inline constexpr auto is_lower = is_in_interval<'a', 'z'>;
 
inline constexpr auto is_digit = is_in_interval<'0', '9'>;
 
inline constexpr auto is_xdigit = is_in_interval<'0', '9'> || is_in_interval<'A', 'F'> || is_in_interval<'a', 'f'>;
 
} // namespace seqan3