//
// aegis - project change supervisor
// Copyright (C) 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/ctype.h>
#include <common/ac/string.h>

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


nstring
nstring::trim_right_lines(void)
    const
{
    nstring_list acc;
    const char *cp = c_str();
    const char *end = cp + size();
    while (cp < end)
    {
        const char *nl = (const char *)memchr(cp, '\n', end - cp);
        const char *cp2 = nl + 1;
        if (!nl)
        {
            nl = end;
            cp2 = end;
        }
        while (nl > cp)
        {
            unsigned char c = nl[-1];
            if (!isspace(c))
                break;
            --nl;
        }
        if (nl != cp)
        {
            nstring line(cp, nl - cp);
            acc.push_back(line);
        }
        cp = cp2;
    }
    return acc.unsplit("\n");
}


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