pretty_print.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2021, 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 <string>
 
#include <seqan3/core/platform.hpp>
 
namespace seqan3::detail
{
 
// ----------------------------------------------------------------------------
// make_printable
// ----------------------------------------------------------------------------
 
inline std::string make_printable(char const c)
{
    switch (c)
    {
        case '\0':                   return "'\\0'";
        case '\t':                   return "'\\t'";
        case '\n':                   return "'\\n'";
        case '\v':                   return "'\\v'";
        case '\f':                   return "'\\f'";
        case '\r':                   return "'\\r'";
        case static_cast<char>(127): return "'DEL'";
        default:
        {
            if ((c >= static_cast<char>(1) && c <= static_cast<char>(8)) ||
                (c >= static_cast<char>(14) && c <= static_cast<char>(31)))
                return "'CTRL'";
            else
                return {'\'', c, '\''};
        }
    }
}
 
} // namespace seqan3::detail