Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 Copyright (C) 2010  Tobias Domhan
    
 This file is part of AndObjViewer.
    
 AndObjViewer 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 3 of the License, or
 (at your option) any later version.
    
 AndObjViewer 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 AndObjViewer.  If not, see <http://www.gnu.org/licenses/>.
    
 */

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;

import java.util.regex.Pattern;

public class Main {
    private static final Pattern trimWhiteSpaces = Pattern.compile("[\\s]+");
    private static final Pattern removeInlineComments = Pattern.compile("#");

    /**
     * Trims down obj files, so that they may be parsed faster later on.
     * Remove uneccessary whitespaces, comments etc.
     * @param in stream to be trimmed
     * @param out the resulting trimmed stream
     */
    public static void trim(BufferedReader in, BufferedWriter out) throws IOException {
        String line;
        out.write("#trimmed\n");
        for (line = in.readLine(); line != null; line = in.readLine()) {
            line = getCanonicalLine(line);
            if (line.length() > 0) {
                out.write(line.trim());
                out.write('\n');
            }
        }
        in.close();
        out.close();
    }

    /**
     * returns a canonical line of a obj or mtl file.
     * e.g. it removes multiple whitespaces or comments from the given string.
     * @param line
     * @return
     */
    public static final String getCanonicalLine(String line) {
        line = trimWhiteSpaces.matcher(line).replaceAll(" ");
        if (line.contains("#")) {
            String[] parts = removeInlineComments.split(line);
            if (parts.length > 0)
                line = parts[0];//remove inline comments
        }
        return line;
    }
}