Difficulty with pointer-vectors

[jollygnome123]

Hey, so for this school project (Data structures) I need to store items from a text document in a matrix so that I may later sort them and merge lists. I've been trying to get this to work but it keeps crashing, though I feel it should work. Can anyone identify what I'm doing wrong? I'm not that great with pointers and allocating memory, but worse yet is my syntax when it comes to any dynamic memory storage. I will gladly accept any help that comes my way, at this point I'm just intensely frustrated and am therefore taking a short break.

#include<iostream>
#include<fstream>
#include<string>
#include<vector>
#include<cmath>
#include<cstdlib>
#include "lexer.h"

using namespace std;

//How to make a vector matrix:
// vector<vector<type>> name

string trim(string x)
{
    x = x.substr(1, (x.size()-1));
    return x;
}

bool hasParentheses(string x)//Edit
{
    bool open = false;
    bool closed = false;
    for(int i = 0; i < x.length(); i++)
    {
        if(x[i] == '(')
        {
            open = true;
        }
        if(open == true)
        {
            if(x[i] == ')')
                closed = true;
        }
    }
    if(open == true && closed == true)
        return true;
    else
        return false;
}

void display(vector<Token> x)
{
    for(int i = 0; i < x.size(); i++)
        cout << x[i].value << "\t";
}

void display(vector< vector<Token> > x)
{
    for(int i = 0; i < x.size(); i++)
    {
        for(int j = 0; j < x[i].size(); j++)
        {
            cout << x[i][j].value << "\t";
        }
        cout << endl;
    }
}

void sort(vector< vector<Token> > x)
{

}

int main()
{
    //Variables
    Token tok;
    Lexer lex;
    string input;

    // "display" variables
    string file;
    string sortedBy;
    char* offnen;
    fstream doc;
    int numColumns = 0;  //reset at end of function
    vector<string> categories;
    Token tok2;
    vector< vector<Token> > docMatrix;
    vector<Token> columns;
    vector< vector<Token> > temptrix;
    //Needs to be a vector or it can't be pushed onto the vector matrix
    vector<Token> * line;
    bool columnsDone = false; // Needs to be reset after display command is called
    int place = 0; //reset at end of function

    ////////////////////////////////////////////////////////////
    //              MAIN MENU
    ////////////////////////////////////////////////////////////
    while(true)
    {
        cout << ">";
        getline(cin, input);

        lex.set_input(input);
        tok = lex.next_token();

        if(tok.value == "display")
        {
            file = lex.next_token().value;
            cout << file << endl;
            if(lex.next_token().value != "sortedby")
                goto bad;
            sortedBy = lex.next_token().value;
            cout << sortedBy << endl;
            offnen = (char*) file.c_str();
            doc.open(offnen);

            //////////////Goes on till end of Doc
            while(!doc.eof())
            {
                getline(doc, input);
                lex.set_input(input);


                //Potential for error IF:
                //There is anything else with parentheses
                //Goes on till end of string
                while(lex.has_more_token())
                {

                    next:
                    tok = lex.next_token();

                    if(columnsDone == false)
                    {
                        tok2 = lex.next_token();
                        if(hasParentheses(tok2.value) == true)
                        {
                            columns.push_back(tok);
                            numColumns++;
                        }
                        else
                        {
                            docMatrix.push_back(columns);
                            line = new vector<Token>(numColumns);
                            columnsDone = true;
                            goto next;
                        }
                        //cout << tok.value;
                    }

                    if(columnsDone == true)
                    {

                        for(int i = place; i < numColumns; i++)
                        {
                            (*line)[i] = tok; // <--Error Here
                            place = i; //should allow place to keep i's last location
                            if(i == (numColumns-1))
                            {
                                docMatrix.push_back((*line));
                                line = new vector<Token>[numColumns];
                            }

                        }

                    }


                }
            }

            display(docMatrix);
        }
        else if(tok.value == "nljoin")
        {

        }
        else if(tok.value == "smjoin")
        {

        }
        else if(tok.value == "exit")
        {
            break;
        }
        else
        {
            bad:
            cout << "Incorrect input" << endl;
        }
    }

    return 0;
}


//Code for potential reuse
/*
                        //traverses from row 1 to end
                        for(int i = 1; i < docMatrix.size(); i++)
                        {
                            if(docMatrix[i].size() < columns)
                            {
                                docMatrix[i].push_back(tok);
                                break;
                            }
                        }
                        //Now do it again, but this time for tok2
                        for(int i = 1; i < docMatrix.size(); i++)
                        {
                            if(docMatrix[i].size() < columns)
                            {
                                docMatrix[i].push_back(tok2);
                                break;
                            }
                        }
*/

/*

            //Now vector matrix should be filled with tokens
            //so let's display it

            for(int i = 0; i < docMatrix.size(); i++)
            {
                for(int j = 0; j < docMatrix[i].size(); j++)
                    cout << docMatrix[i][j].value << "\t";
                cout << endl;
            }

            doc.close();
*/