Qt Contador

/*
 * (C) 2011 Angelo S. Mavridis Bartolome <barklome@gmail.com>
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 */

/*
  Tutoral Qt : Contador de palavras
  Escrito por: Angelo S. Mavridis Bartolome
  Livre para copiar, só não pode falar que você quem fez :)
  */

#include <QDebug>
#include <QFile>

int main(int argc, char *argv[])
{
    QFile f(argv[1]); // Cria instancia do QFile
    int contar = 0;  // Cria um contador

    if(argc < 3)
    {
        qDebug() << "Uso: ./aplicativo ARQUIVO PALAVRA";
        return 1; // Retorna 1: Falha. Retorna 0: Sucesso
    }

    if(!f.open(QIODevice::ReadOnly | QIODevice::Text))
    {
        qDebug() << "Falha ao abrir o arquivo: " << f.fileName();
        return 1; // Retorna falha novamente
    }


    QTextStream arquivoTexto(&f);
    QString linha;

    while(!arquivoTexto.atEnd())
    {
        linha = arquivoTexto.readLine();
        contar = contar + linha.count(QString(argv[2]));
    }

    qDebug() << "Lido: " << f.fileName() << ". Contado " << contar << argv[2] << "(s)";

}