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xml-commons Resolver Source Code Files
xml-commons Resolver Source Code Files are provided in the source package file, xml-commons-resolver-1.2-fyi.zip.
You can download xml-commons-resolver-1.2-fyi.zip as described in the previous tutorial and go to the "src/" sub-folder to view Source Code files.
You can also browse xml-commons Resolver Source Code files below:
✍: FYIcenter
⏎ org/apache/xml/resolver/readers/TextCatalogReader.java
// TextCatalogReader.java - Read text/plain Catalog files /* * 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.apache.xml.resolver.readers; import java.io.InputStream; import java.io.IOException; import java.io.FileNotFoundException; import java.net.URL; import java.net.URLConnection; import java.net.MalformedURLException; import java.util.Vector; import java.util.Stack; import org.apache.xml.resolver.Catalog; import org.apache.xml.resolver.CatalogEntry; import org.apache.xml.resolver.CatalogException; import org.apache.xml.resolver.readers.CatalogReader; /** * Parses plain text Catalog files. * * <p>This class reads plain text Open Catalog files.</p> * * @see Catalog * * @author Norman Walsh * <a href="mailto:Norman.Walsh@Sun.COM">Norman.Walsh@Sun.COM</a> * * @version 1.0 */ public class TextCatalogReader implements CatalogReader { /** The input stream used to read the catalog */ protected InputStream catfile = null; /** * Character lookahead stack. Reading a catalog sometimes requires * up to two characters of lookahead. */ protected int[] stack = new int[3]; /** * Token stack. Recognizing an unexpected catalog entry requires * the ability to "push back" a token. */ protected Stack tokenStack = new Stack(); /** The current position on the lookahead stack */ protected int top = -1; /** Are keywords in the catalog case sensitive? */ protected boolean caseSensitive = false; /** * Construct a CatalogReader object. */ public TextCatalogReader() { } public void setCaseSensitive(boolean isCaseSensitive) { caseSensitive = isCaseSensitive; } public boolean getCaseSensitive() { return caseSensitive; } /** * Start parsing a text catalog file. The file is * actually read and parsed * as needed by <code>nextEntry</code>.</p> * * @param fileUrl The URL or filename of the catalog file to process * * @throws MalformedURLException Improper fileUrl * @throws IOException Error reading catalog file */ public void readCatalog(Catalog catalog, String fileUrl) throws MalformedURLException, IOException { URL catURL = null; try { catURL = new URL(fileUrl); } catch (MalformedURLException e) { catURL = new URL("file:///" + fileUrl); } URLConnection urlCon = catURL.openConnection(); try { readCatalog(catalog, urlCon.getInputStream()); } catch (FileNotFoundException e) { catalog.getCatalogManager().debug.message(1, "Failed to load catalog, file not found", catURL.toString()); } } public void readCatalog(Catalog catalog, InputStream is) throws MalformedURLException, IOException { catfile = is; if (catfile == null) { return; } Vector unknownEntry = null; try { while (true) { String token = nextToken(); if (token == null) { if (unknownEntry != null) { catalog.unknownEntry(unknownEntry); unknownEntry = null; } catfile.close(); catfile = null; return; } String entryToken = null; if (caseSensitive) { entryToken = token; } else { entryToken = token.toUpperCase(); } try { int type = CatalogEntry.getEntryType(entryToken); int numArgs = CatalogEntry.getEntryArgCount(type); Vector args = new Vector(); if (unknownEntry != null) { catalog.unknownEntry(unknownEntry); unknownEntry = null; } for (int count = 0; count < numArgs; count++) { args.addElement(nextToken()); } catalog.addEntry(new CatalogEntry(entryToken, args)); } catch (CatalogException cex) { if (cex.getExceptionType() == CatalogException.INVALID_ENTRY_TYPE) { if (unknownEntry == null) { unknownEntry = new Vector(); } unknownEntry.addElement(token); } else if (cex.getExceptionType() == CatalogException.INVALID_ENTRY) { catalog.getCatalogManager().debug.message(1, "Invalid catalog entry", token); unknownEntry = null; } else if (cex.getExceptionType() == CatalogException.UNENDED_COMMENT) { catalog.getCatalogManager().debug.message(1, cex.getMessage()); } } } } catch (CatalogException cex2) { if (cex2.getExceptionType() == CatalogException.UNENDED_COMMENT) { catalog.getCatalogManager().debug.message(1, cex2.getMessage()); } } } /** * The destructor. * * <p>Makes sure the catalog file is closed.</p> */ protected void finalize() { if (catfile != null) { try { catfile.close(); } catch (IOException e) { // whatever... } } catfile = null; } // ----------------------------------------------------------------- /** * Return the next token in the catalog file. * * <p>FYI: This code does not throw any sort of exception for * a file that contains an n * * @return The Catalog file token from the input stream. * @throws IOException If an error occurs reading from the stream. */ protected String nextToken() throws IOException, CatalogException { String token = ""; int ch, nextch; if (!tokenStack.empty()) { return (String) tokenStack.pop(); } // Skip over leading whitespace and comments while (true) { // skip leading whitespace ch = catfile.read(); while (ch <= ' ') { // all ctrls are whitespace ch = catfile.read(); if (ch < 0) { return null; } } // now 'ch' is the current char from the file nextch = catfile.read(); if (nextch < 0) { return null; } if (ch == '-' && nextch == '-') { // we've found a comment, skip it... ch = ' '; nextch = nextChar(); while ((ch != '-' || nextch != '-') && nextch > 0) { ch = nextch; nextch = nextChar(); } if (nextch < 0) { throw new CatalogException(CatalogException.UNENDED_COMMENT, "Unterminated comment in catalog file; EOF treated as end-of-comment."); } // Ok, we've found the end of the comment, // loop back to the top and start again... } else { stack[++top] = nextch; stack[++top] = ch; break; } } ch = nextChar(); if (ch == '"' || ch == '\'') { int quote = ch; while ((ch = nextChar()) != quote) { char[] chararr = new char[1]; chararr[0] = (char) ch; String s = new String(chararr); token = token.concat(s); } return token; } else { // return the next whitespace or comment delimited // string while (ch > ' ') { nextch = nextChar(); if (ch == '-' && nextch == '-') { stack[++top] = ch; stack[++top] = nextch; return token; } else { char[] chararr = new char[1]; chararr[0] = (char) ch; String s = new String(chararr); token = token.concat(s); ch = nextch; } } return token; } } /** * Return the next logical character from the input stream. * * @return The next (logical) character from the input stream. The * character may be buffered from a previous lookahead. * * @throws IOException If an error occurs reading from the stream. */ protected int nextChar() throws IOException { if (top < 0) { return catfile.read(); } else { return stack[top--]; } } }
⏎ org/apache/xml/resolver/readers/TextCatalogReader.java
Or download all of them as a single archive file:
File name: xml-commons-resolver-1.2-fyi.zip File size: 101319 bytes Release date: 2006-11-20 Download
⇒ FAQ for Apache Xerces XML Parser
⇐ What Is in xml-commons-resolver-1.2.zip
2016-06-15, 24453👍, 1💬
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