path: root/libdevcore/IndentedWriter.cpp

/*
    This file is part of solidity.

    solidity 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.

    solidity 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 solidity.  If not, see <http://www.gnu.org/licenses/>.
*/
/**
 * @date 2017
 * Indented text writer.
 */

#include <libdevcore/IndentedWriter.h>
#include <libdevcore/Assertions.h>

using namespace std;
using namespace dev;

string IndentedWriter::format() const
{
    string result;
    for (auto const& line: m_lines)
        result += string(line.indentation * 4, ' ') + line.contents + "\n";
    return result;
}

void IndentedWriter::newLine()
{
    if (!m_lines.back().contents.empty())
        m_lines.push_back({ string(), m_lines.back().indentation });
}

void IndentedWriter::indent()
{
    newLine();
    m_lines.back().indentation++;
}

void IndentedWriter::unindent()
{
    newLine();
    assertThrow(m_lines.back().indentation > 0, IndentedWriterError, "Negative indentation.");
    m_lines.back().indentation--;
}

void IndentedWriter::add(string const& _str)
{
    m_lines.back().contents += _str;
}

void IndentedWriter::addLine(string const& _line)
{
    newLine();
    add(_line);
    newLine();
}