lib/output/prefix.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/assert.h>

#include <lib/output/prefix.h>


output_prefix::~output_prefix()
{
}


output_prefix::output_prefix(
    const output::pointer &a_deeper,
    const rcstring &a_prefix
) :
    deeper(a_deeper),
    prefix(a_prefix),
    prefix0(a_prefix.trim_right())
{
    assert(prefix.is_printable());
}


output_prefix::pointer
output_prefix::create(const output::pointer &a_deeper, const rcstring &a_prefix)
{
    return pointer(new output_prefix(a_deeper, a_prefix));
}


output_prefix::output_prefix(
    const output::pointer &a_deeper,
    int indent
) :
    deeper(a_deeper),
    prefix(rcstring::spaces(indent > 0 ? indent : 0)),
    prefix0()
{
}


output_prefix::pointer
output_prefix::create(const output::pointer &a_deeper, int a_indent)
{
    return pointer(new output_prefix(a_deeper, a_indent));
}


void
output_prefix::put(char c)
{
    if (get_column() == 0)
    {
        if (c == '\n')
            deeper->put(prefix0);
        else
            deeper->put(prefix);
    }
    deeper->put(c);
}


int
output_prefix::get_column(void)
    const
{
    int n = deeper->get_column();
    n -= prefix.size();
    return (n < 0 ? 0 : n);
}


int
output_prefix::get_line_width(void)
    const
{
    int n = deeper->get_line_width();
    n -= prefix.size();
    return (n < 10 ? 10 : n);
}


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