regexsearch.cpp

Go to the documentation of this file.

/*
  Phrasehunter - index and query text corpora
  Copyright (C) 2006  Torsten Marek (shlomme@gmx.de) &
  Armin Schmidt (armin.sch@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.
*/

#include <iostream>

#include <boost/format.hpp>
#include <boost/assign.hpp>
#include <boost/bind.hpp>

#include "support/hptimer.hpp"
#include "support/unicodehelpers.h"

#include "phrasehunter/corpus.h"
#include "phrasehunter/token.h"
#include "phrasehunter/searchengine.h"


using namespace boost::assign;
using boost::bind;
using boost::format;

typedef std::list<std::string> StringList;

const StringList phrases = 
    list_of
    ("d(er|ie|as) system\\w*");

void time_serge(PhraseHunter::SearchEngine* se, std::string phrase, int iterations = 10) 
{
    hptimer t;
    for(int i = 0; i < iterations; ++i) {
        se->searchPhrasalRegex(schma::UnicodePtr(new UnicodeString(phrase.c_str())));
    }
    unsigned long elapsed = t.elapsed();
    
    std::cout << format("%|-30||%|5||%|10||%|10||")
      % phrase
      % iterations
      % elapsed
      % (elapsed / static_cast<double>(iterations))
            << std::endl;
}

int main(int argc, char** argv)
{
    PhraseHunter::CorpusManager corpus("corpora/testcorpus");
    PhraseHunter::SearchEngine *se = corpus.searchEngine();
    
    std::cout << format("%|=30||%|=5||%|=10||%|=10||")
      % "phrase" % "i" % "t (ms)" % "1 (ms)" << std::endl;

    for_each(phrases.begin(), phrases.end(),
           bind(time_serge, se, _1, 10));
    std::cout << std::endl;
    
    return 0;
}




          

---