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/*
  Copyright (c) 2011-2012 - Tőkés Attila

  This file is part of SmtpClient for Qt.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  See the LICENSE file for more details.
*/

#include "smtp/mimecontentformatter.h"

MimeContentFormatter::MimeContentFormatter(int max_length)
        : max_length(max_length) {}

QString MimeContentFormatter::format(const QString &content,
                                     bool quotedPrintable) const {

    QString out;

    int chars = 0;
    for (auto i : content) {
        chars++;
        if (!quotedPrintable) {
            if (chars > max_length) {
                out.append("\r\n");
                chars = 1;
            }
        } else {
            if (i == '\n') { // new line
                out.append(i);
                chars = 0;
                continue;
            }

            if ((chars > max_length - 1) ||
                ((i == '=') && (chars > max_length - 3))) {
                out.append('=');
                out.append("\r\n");
                chars = 1;
            }
        }
        out.append(i);
    }

    return out;
}

void MimeContentFormatter::setMaxLength(int l) { max_length = l; }

int MimeContentFormatter::getMaxLength() const { return max_length; }