Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (c) 2013, 2014 Denis Nikiforov.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *    Denis Nikiforov - initial API and implementation
 */

public class Main {
    public static int getCharPositionInLine(String text, int offset) {
        return getLineAndCharPosition(text, offset)[1];
    }

    public static Integer[] getLineAndCharPosition(String text, int offset) {
        int index = 0;
        int line = 0;
        int positionInLine = 0;
        while (true) {
            line++;
            positionInLine = offset - index + 1;
            int nextN = text.indexOf("\n", index);
            int nextR = text.indexOf("\r", index);
            int nextNorR = Integer.MAX_VALUE;
            if (nextN >= 0) {
                nextNorR = nextN;
            } else if (nextR >= 0 && nextR < nextNorR) {
                nextNorR = nextR;
            } else {
                // found no EOL character
                break;
            }

            index = nextNorR + 1;
            if (index == nextN) {
                index++;
            }
            if (index == nextR) {
                index++;
            }
            if (index > offset) {
                break;
            }
        }
        return new Integer[] { line, positionInLine };
    }
}