//
// aegis - project change supervisor
// Copyright (C) 2005, 2006, 2008, 2014 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 3 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 <common/ac/string.h>

#include <common/nstring/accumulator.h>
#include <common/nstring/list.h>
#include <common/trace.h>


nstring
nstring_list::unsplit(const char *sep)
    const
{
    return unsplit(0, size(), sep);
}


nstring
nstring_list::unsplit(size_t start, size_t stop, const char *sep)
    const
{
    // The logic here must be identical to string_list_ty::unsplit
    // until we can retire string_list_ty.
    if (!sep)
        sep = " ";
    trace(("string_list_ty::unsplit(start = %zu, stop = %zu, sep = \"%s\")\n",
        start, stop, sep));
    size_t seplen = strlen(sep);

    static nstring_accumulator tmp;
    tmp.clear();

    for (size_t j = start; j <= stop && j < size(); j++)
    {
        nstring s = content[j];
        if (!s.empty())
        {
            if (!tmp.empty())
                tmp.push_back(sep, seplen);
            tmp.push_back(s);
        }
    }

    return tmp.mkstr();
}


// vim: set ts=8 sw=4 et :