/*******************************************************************************
 * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v0.5 
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v05.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/
package net.sourceforge.phpdt.internal.formatter.impl;

import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;

/**
 * Represents a split line: contains an operator and all substrings
 */
public class SplitLine implements ITerminalSymbols {
	public TokenName[] operators; // the operator on which the string was split.

	public String[] substrings;

	public int[] startSubstringsIndexes;

	/**
	 * SplitLine constructor comment.
	 */
//	public SplitLine(int[] operators, String[] substrings) {
//		this(operators, substrings, null);
//	}

	/**
	 * SplitLine constructor comment.
	 */
//	public SplitLine(int[] operators, String[] substrings, int[] startIndexes) {
//		super();
//		this.operators = operators;
//		this.substrings = substrings;
//		this.startSubstringsIndexes = startIndexes;
//	}

	/**
	 * Prints a nice representation of the receiver
	 * 
	 * @return java.lang.String
	 */
	public String toString() {
		StringBuffer result = new StringBuffer();
		String operatorString = new String();

		for (int i = 0, max = substrings.length; i < max; i++) {
			TokenName currentOperator = operators[i];
			String currentString = substrings[i];
			boolean placeOperatorAhead = currentOperator != TokenName.COMMA
					&& currentOperator != TokenName.SEMICOLON;
			boolean placeOperatorBehind = currentOperator == TokenName.COMMA
					|| currentOperator == TokenName.SEMICOLON;

			switch (currentOperator) {
			case EXTENDS:
				operatorString = "extends"; //$NON-NLS-1$
				break;
			// case implements:
			// operatorString="implements"; //$NON-NLS-1$
			// break;
			// case throws:
			// operatorString="throws"; //$NON-NLS-1$
			// break;
			case SEMICOLON: // ;
				operatorString = ";"; //$NON-NLS-1$
				break;
			case COMMA: // ,
				operatorString = ","; //$NON-NLS-1$
				break;
			case EQUAL: // =
				operatorString = "="; //$NON-NLS-1$
				break;
			case AND_AND: // && (15.22)
				operatorString = "&&"; //$NON-NLS-1$
				break;
			case OR_OR: // || (15.23)
				operatorString = "||"; //$NON-NLS-1$
				break;
			case QUESTION: // ? (15.24)
				operatorString = "?"; //$NON-NLS-1$
				break;

			case COLON: // : (15.24)
				operatorString = ":"; //$NON-NLS-1$
				break;
			case EQUAL_EQUAL: // == (15.20, 15.20.1, 15.20.2, 15.20.3)
				operatorString = "=="; //$NON-NLS-1$
				break;

			case NOT_EQUAL: // != (15.20, 15.20.1, 15.20.2, 15.20.3)
				operatorString = "!="; //$NON-NLS-1$
				break;

			case LESS: // < (15.19.1)
				operatorString = "<"; //$NON-NLS-1$
				break;

			case LESS_EQUAL: // <= (15.19.1)
				operatorString = "<="; //$NON-NLS-1$
				break;

			case GREATER: // > (15.19.1)
				operatorString = ">"; //$NON-NLS-1$
				break;

			case GREATER_EQUAL: // >= (15.19.1)
				operatorString = ">="; //$NON-NLS-1$
				break;

			// case instanceof : // instanceof
			// operatorString="instanceof"; //$NON-NLS-1$
			// break;
			case PLUS: // + (15.17, 15.17.2)
				operatorString = "+"; //$NON-NLS-1$
				break;

			case MINUS: // - (15.17.2)
				operatorString = "-"; //$NON-NLS-1$
				break;
			case MULTIPLY: // * (15.16.1)
				operatorString = "*"; //$NON-NLS-1$
				break;

			case DIVIDE: // / (15.16.2)
				operatorString = "/"; //$NON-NLS-1$
				break;

			case REMAINDER: // % (15.16.3)
				operatorString = "%"; //$NON-NLS-1$
				break;
			case LEFT_SHIFT: // << (15.18)
				operatorString = "<<"; //$NON-NLS-1$
				break;

			case RIGHT_SHIFT: // >> (15.18)
				operatorString = ">>"; //$NON-NLS-1$
				break;

			// case UNSIGNED_RIGHT_SHIFT : // >>> (15.18)
			// operatorString=">>>"; //$NON-NLS-1$
			// break;
			case OP_AND: // & (15.21, 15.21.1, 15.21.2)
				operatorString = "&"; //$NON-NLS-1$
				break;

			case OP_OR: // | (15.21, 15.21.1, 15.21.2)
				operatorString = "|"; //$NON-NLS-1$
				break;

			case OP_XOR: // ^ (15.21, 15.21.1, 15.21.2)
				operatorString = "^"; //$NON-NLS-1$
				break;
			case MULTIPLY_EQUAL: // *= (15.25.2)
				operatorString = "*="; //$NON-NLS-1$
				break;

			case DIVIDE_EQUAL: // /= (15.25.2)
				operatorString = "/="; //$NON-NLS-1$
				break;
			case REMAINDER_EQUAL: // %= (15.25.2)
				operatorString = "%="; //$NON-NLS-1$
				break;

			case PLUS_EQUAL: // += (15.25.2)
				operatorString = "+="; //$NON-NLS-1$
				break;

			case MINUS_EQUAL: // -= (15.25.2)
				operatorString = "-="; //$NON-NLS-1$
				break;

			case LEFT_SHIFT_EQUAL: // <<= (15.25.2)
				operatorString = "<<="; //$NON-NLS-1$
				break;

			case RIGHT_SHIFT_EQUAL: // >>= (15.25.2)
				operatorString = ">>="; //$NON-NLS-1$
				break;

			// case UNSIGNED_RIGHT_SHIFT_EQUAL : // >>>= (15.25.2)
			// operatorString=">>>="; //$NON-NLS-1$
			// break;

			case AND_EQUAL: // &= (15.25.2)
				operatorString = "&="; //$NON-NLS-1$
				break;

			case XOR_EQUAL: // ^= (15.25.2)
				operatorString = "^="; //$NON-NLS-1$
				break;

			case OR_EQUAL: // |= (15.25.2)
				operatorString = "|="; //$NON-NLS-1$
				break;
			case DOT_EQUAL: // .=
				operatorString = ".="; //$NON-NLS-1$
				break;
			case DOT: // .
				operatorString = "."; //$NON-NLS-1$
				break;

			default:
				operatorString = ""; //$NON-NLS-1$
			}
			if (placeOperatorAhead) {
				result.append(operatorString);
			}
			result.append(currentString);
			if (placeOperatorBehind) {
				result.append(operatorString);
			}
			result.append('\n');
		}
		return ""; //$NON-NLS-1$
	}
}