| /******************************************************************************* |
| * Copyright (c) 2008 xored software, Inc. |
| * |
| * 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: |
| * xored software, Inc. - initial API and Implementation (Alex Panchenko) |
| *******************************************************************************/ |
| package org.eclipse.dltk.formatter; |
| |
| import java.util.List; |
| |
| public class FormatterUtils { |
| |
| public static boolean isSpace(char c) { |
| return c == '\t' || c == ' '; |
| } |
| |
| public static boolean isLineSeparator(char c) { |
| return c == '\r' || c == '\n'; |
| } |
| |
| public static boolean isNewLine(IFormatterNode node) { |
| if (node instanceof IFormatterTextNode) { |
| final IFormatterTextNode textNode = (IFormatterTextNode) node; |
| final IFormatterDocument document = node.getDocument(); |
| int start = textNode.getStartOffset(); |
| if (start < textNode.getEndOffset()) { |
| if (document.charAt(start) == '\n') { |
| ++start; |
| } else if (document.charAt(start) == '\r') { |
| ++start; |
| if (start < textNode.getEndOffset() |
| && document.charAt(start) == '\n') { |
| ++start; |
| } |
| } else { |
| return false; |
| } |
| } |
| while (start < textNode.getEndOffset()) { |
| if (!isSpace(document.charAt(start))) { |
| return false; |
| } |
| ++start; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * @param node |
| * @return |
| */ |
| public static boolean isEmptyText(IFormatterNode node) { |
| if (node instanceof IFormatterTextNode) { |
| final String text = ((IFormatterTextNode) node).getText(); |
| for (int i = 0; i < text.length(); ++i) { |
| char c = text.charAt(i); |
| if (!Character.isWhitespace(c)) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| public static IFormatterNode[] toTextNodeArray(List<IFormatterNode> list) { |
| if (list != null) { |
| return list.toArray(new IFormatterNode[list.size()]); |
| } else { |
| return null; |
| } |
| } |
| |
| } |