| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.text.rules; |
| |
| |
| /** |
| * Defines the interface of a character scanner used by rules. |
| * Rules may request the next character or ask the character |
| * scanner to unread the last read character. |
| */ |
| public interface ICharacterScanner { |
| |
| /** |
| * The value returned when this scanner has read EOF. |
| */ |
| public static final int EOF= -1; |
| |
| /** |
| * Provides rules access to the legal line delimiters. |
| * |
| * @return the legal line delimiters |
| */ |
| char[][] getLegalLineDelimiters(); |
| |
| /** |
| * Returns the column of the character scanner. |
| * |
| * @return the column of the character scanner |
| */ |
| int getColumn(); |
| |
| /** |
| * Returns the next character or EOF if end of file has been reached |
| * |
| * @return the next character or EOF |
| */ |
| int read(); |
| |
| /** |
| * Rewinds the scanner before the last read character. |
| */ |
| void unread(); |
| } |