| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| package org.openoffice.xmerge.util; |
| |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.Text; |
| |
| import org.openoffice.xmerge.converter.xml.OfficeConstants; |
| |
| import java.util.Vector; |
| |
| |
| /** |
| * Class providing utility methods for OpenOffice plugins. |
| * |
| * @author Mark Murnane |
| * @version 1.1 |
| */ |
| public class OfficeUtil implements OfficeConstants { |
| |
| /** |
| * <p>Method to replace whitespace character within text with appropriate |
| * OpenOffice.org XML tags.</p> |
| * |
| * @param text The text to parse for whitespace. |
| * |
| * @return <code>Node</code> array containing OpenOffice XML nodes |
| * representing the text. |
| */ |
| public static Node[] parseText(String text, Document parentDoc) { |
| Vector nodeVec = new Vector(); |
| |
| /* |
| * Break up the text from the text run into Open |
| * Office text runs. There may be more runs in OO because |
| * runs of 2 or more spaces map to nodes. |
| */ |
| while ((text.indexOf(" ") != -1) || (text.indexOf("\t") != 1)) { |
| |
| /* |
| * Find the indices of tabs and multiple spaces, and |
| * figure out which of them occurs first in the string. |
| */ |
| int spaceIndex = text.indexOf(" "); |
| int tabIndex = text.indexOf("\t"); |
| if ((spaceIndex == -1) && (tabIndex == -1)) |
| break; // DJP This should not be necessary. What is wrong |
| // with the while() stmt up above? |
| int closerIndex; // Index of the first of these |
| if (spaceIndex == -1) |
| closerIndex = tabIndex; |
| else if (tabIndex == -1) |
| closerIndex = spaceIndex; |
| else |
| closerIndex = (spaceIndex > tabIndex) ? tabIndex : spaceIndex; |
| |
| /* |
| * If there is any text prior to the first occurrence of a |
| * tab or spaces, create a text node from it, then chop it |
| * off the string we're working with. |
| */ |
| if (closerIndex > 0) { |
| String beginningText = text.substring(0, closerIndex); |
| Text textNode = parentDoc.createTextNode(beginningText); |
| nodeVec.addElement(textNode); |
| } |
| text = text.substring(closerIndex); |
| |
| /* |
| * Handle either tab character or space sequence by creating |
| * an element for it, and then chopping out the text that |
| * represented it in "text". |
| */ |
| if (closerIndex == tabIndex) { |
| Element tabNode = parentDoc.createElement(TAG_TAB_STOP); |
| nodeVec.add(tabNode); |
| text = text.substring(1); // tab is always a single character |
| } else { |
| // Compute length of space sequence. |
| int nrSpaces = 2; |
| while ((nrSpaces < text.length()) |
| && text.substring(nrSpaces, nrSpaces + 1).equals(" ")) |
| nrSpaces++; |
| |
| Element spaceNode = parentDoc.createElement(TAG_SPACE); |
| spaceNode.setAttribute(ATTRIBUTE_SPACE_COUNT, |
| new Integer(nrSpaces).toString()); |
| nodeVec.add(spaceNode); |
| text = text.substring(nrSpaces); |
| } |
| } |
| |
| /* |
| * No more tabs or space sequences. If there's any remaining |
| * text create a text node for it. |
| */ |
| if (text.length() > 0) { |
| Text textNode = parentDoc.createTextNode(text); |
| nodeVec.add(textNode); |
| } |
| |
| // Now create and populate an array to return the nodes in. |
| Node nodes[] = new Node[nodeVec.size()]; |
| for (int i = 0; i < nodeVec.size(); i++) |
| nodes[i] = (Node)nodeVec.elementAt(i); |
| return nodes; |
| } |
| } |