TokenList.cc

/* 
 * File:   Tokenlist.cc
 * 
 * Copyright 2014 Heinrich Schuchardt <xypron.glpk@gmx.de>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "TokenList.h"

TokenList::TokenList() {
}

TokenList::TokenList(const TokenList& orig) {
    for (std::vector<Token *>::const_iterator pos = orig.list.begin();
            pos != list.end(); ++pos) {
        // Append copy of token.
        append(new Token(**pos));
    }
}

TokenList::~TokenList() {
    for (std::vector<Token *>::iterator pos = list.begin();
            pos != list.end(); ++pos) {
        delete *pos;
        *pos = NULL;
    }
}

std::vector<Token *>::const_iterator TokenList::begin() {
    return list.begin();
}

std::vector<Token *>::const_iterator TokenList::end() {
    return list.end();
}

int TokenList::length() {
    return list.size();
};

const Token * TokenList::tokenAt(int pos) {
    if (pos < 0 || pos >= list.size()) {
        throw invalid;
    } else {
        return list[pos];
    }
}

void TokenList::append(Token *tok) {
    list.push_back(tok);
}