lib/boolean.cc

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//
// nis-util - NIS Administration Utilities
// Copyright (C) 2012 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
//

#include <lib/ac/string.h>

#include <lib/boolean.h>
#include <lib/sizeof.h>


const char *string_from_boolean(bool value)
{
    return (value ? "true" : "false");
}


bool
boolean_from_string(const rcstring &text, bool &value)
{
    return boolean_from_string(text.c_str(), value);
}


bool
boolean_from_string(const char *text, bool &value)
{
    struct table_t
    {
        const char *name;
        bool value;
    };

    static const table_t table[] =
    {
        { "false", false },
        { "no", false },
        { "nil", false },
        { "ok", true },
        { "true", true },
        { "yes", true },
    };

    for (const table_t *tp = table; tp < ENDOF(table); ++tp)
    {
        if (0 == strcmp(text, tp->name))
        {
            value = tp->value;
            return true;
        }
    }

    return false;
}


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