#include <iostream>
#include <boost/tokenizer.hpp>
#include <boost/algorithm/string.hpp>
#include <string>
#include <algorithm>

#include "nlsr_tokenizer.hpp"

namespace nlsr
{

    using namespace std;
    using namespace boost;

    void
    nlsrTokenizer::makeToken()
    {
        char_separator<char> sep(seps.c_str());
        tokenizer< char_separator<char> >tokens(originalString, sep);
        tokenizer< char_separator<char> >::iterator tok_iter = tokens.begin();
        for ( ; tok_iter != tokens.end(); ++tok_iter)
        {
            string oneToken(*tok_iter);
            trim(oneToken);
            if(!oneToken.empty())
            {
                insertToken(oneToken);
            }
        }
        firstToken=vTokenList[0];
        makeRestOfTheLine();
    }

    void
    nlsrTokenizer::insertToken(const string& token)
    {
        tokenList.push_back(token);
        vTokenList.push_back(token);
    }

    int
    nlsrTokenizer::getTokenPosition(string& token)
    {
        int pos=-1;
        int i=0;
        for(std::list<string>::iterator it=tokenList.begin();
                it!=tokenList.end(); it++)
        {
            if( (*it) == token )
            {
                break;
            }
            i++;
        }
        if( i < tokenList.size() )
        {
            pos=i;
        }
        return pos;
    }

    string
    nlsrTokenizer::getTokenString(int from , int to)
    {
        string returnString="";
        if((from>=0 && to<tokenList.size()) &&
                (to>=from && to <tokenList.size()))
        {
            for(int i=from; i<=to; i++)
            {
                returnString+=seps;
                returnString+=vTokenList[i];
            }
        }
        trim(returnString);
        return returnString;
    }

    string
    nlsrTokenizer::getTokenString(int from)
    {
        return getTokenString(from,tokenList.size()-1);
    }

    static bool
    tokenCompare(string& s1, string& s2)
    {
        return s1==s2;
    }

    void
    nlsrTokenizer::makeRestOfTheLine()
    {
        restOfTheLine=getTokenString(1);
    }

    bool
    nlsrTokenizer::doesTokenExist(string token)
    {
        std::list<string >::iterator it = std::find_if( tokenList.begin(),
                                          tokenList.end(),
                                          bind(&tokenCompare, _1 , token));
        if( it != tokenList.end() )
        {
            return true;
        }
        return false;
    }

}//namespace nlsr