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The source code// $Header: /home/cvs/jakarta-jmeter/src/htmlparser/org/htmlparser/util/ParserUtils.java,v 1.2 2004/02/11 02:16:58 woolfel Exp $ /* * ==================================================================== * Copyright 2002-2004 The Apache Software Foundation. * * Licensed 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. * */ // The developers of JMeter and Apache are greatful to the developers // of HTMLParser for giving Apache Software Foundation a non-exclusive // license. The performance benefits of HTMLParser are clear and the // users of JMeter will benefit from the hard work the HTMLParser // team. For detailed information about HTMLParser, the project is // hosted on sourceforge at http://htmlparser.sourceforge.net/. // // HTMLParser was originally created by Somik Raha in 2000. Since then // a healthy community of users has formed and helped refine the // design so that it is able to tackle the difficult task of parsing // dirty HTML. Derrick Oswald is the current lead developer and was kind // enough to assist JMeter. package org.htmlparser.util; import java.util.Enumeration; import java.util.Hashtable; import java.util.Map; import org.htmlparser.Node; import org.htmlparser.NodeReader; import org.htmlparser.scanners.TagScanner; import org.htmlparser.tags.Tag; public class ParserUtils { public static boolean evaluateTag( TagScanner pTagScanner, String pTagString, String pTagName) { pTagString = TagScanner.absorbLeadingBlanks(pTagString); if (pTagString.toUpperCase().indexOf(pTagName) == 0) return true; else return false; } public static String toHTML(Tag tag) { StringBuffer htmlString = new StringBuffer(); Hashtable attrs = tag.getAttributes(); String pTagName = tag.getAttribute(Tag.TAGNAME); htmlString.append("<").append(pTagName); for (Enumeration e = attrs.keys(); e.hasMoreElements();) { String key = (String) e.nextElement(); String value = (String) attrs.get(key); if (!key.equalsIgnoreCase(Tag.TAGNAME) && value.length() > 0) htmlString.append(" ").append(key).append("=\"").append( value).append( "\""); } htmlString.append(">"); return htmlString.toString(); } public static String toString(Tag tag) { String tagName = tag.getAttribute(Tag.TAGNAME); Hashtable attrs = tag.getAttributes(); StringBuffer lString = new StringBuffer(tagName); lString.append(" TAG\n"); lString.append("--------\n"); for (Enumeration e = attrs.keys(); e.hasMoreElements();) { String key = (String) e.nextElement(); String value = (String) attrs.get(key); if (!key.equalsIgnoreCase(Tag.TAGNAME) && value.length() > 0) lString.append(key).append(" : ").append(value).append("\n"); } return lString.toString(); } public static Map adjustScanners(NodeReader reader) { Map tempScanners = new Hashtable(); tempScanners = reader.getParser().getScanners(); // Remove all existing scanners reader.getParser().flushScanners(); return tempScanners; } public static void restoreScanners(NodeReader reader, Map tempScanners) { // Flush the scanners reader.getParser().setScanners(tempScanners); } public static String removeChars(String s, char occur) { StringBuffer newString = new StringBuffer(); char ch; for (int i = 0; i < s.length(); i++) { ch = s.charAt(i); if (ch != occur) newString.append(ch); } return newString.toString(); } public static String removeEscapeCharacters(String inputString) { inputString = ParserUtils.removeChars(inputString, '\r'); inputString = ParserUtils.removeChars(inputString, '\n'); inputString = ParserUtils.removeChars(inputString, '\t'); return inputString; } public static String removeLeadingBlanks(String plainText) { while (plainText.indexOf(' ') == 0) plainText = plainText.substring(1); return plainText; } public static String removeTrailingBlanks(String text) { char ch = ' '; while (ch == ' ') { ch = text.charAt(text.length() - 1); if (ch == ' ') text = text.substring(0, text.length() - 1); } return text; } /** * Search given node and pick up any objects of given type, return * Node array. * @param node * @param type * @return Node[] */ public static Node[] findTypeInNode(Node node, Class type) { NodeList nodeList = new NodeList(); node.collectInto(nodeList, type); Node spans[] = nodeList.toNodeArray(); return spans; } } |
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