diff options
Diffstat (limited to 'bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/contenttype/XMLDeclDetector.java')
-rw-r--r-- | bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/contenttype/XMLDeclDetector.java | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/contenttype/XMLDeclDetector.java b/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/contenttype/XMLDeclDetector.java deleted file mode 100644 index 20ab286de1..0000000000 --- a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/contenttype/XMLDeclDetector.java +++ /dev/null @@ -1,156 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2004 IBM Corporation and others. - * 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: - * IBM Corporation - initial API and implementation - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.xml.core.internal.contenttype; - -import java.io.BufferedInputStream; -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStream; -import java.io.Reader; - -import org.eclipse.core.resources.IFile; -import org.eclipse.core.runtime.CoreException; - -public class XMLDeclDetector { - private static final int MAX_BUF_SIZE = 1024 * 8; - private static final int MAX_MARK_SIZE = 1024 * 8; - protected boolean fHeaderParsed; - private boolean fIsXML; - protected Reader fReader; - //private boolean DEBUG = false; - private XMLHeadTokenizer fTokenizer; - - private boolean canHandleAsUnicodeStream(String tokenType) { - boolean canHandleAsUnicodeStream = false; - if (tokenType == EncodingParserConstants.UTF83ByteBOM) { - canHandleAsUnicodeStream = true; - //fUnicode = "UTF-8"; //$NON-NLS-1$ - } else if (tokenType == EncodingParserConstants.UTF16BE) { - canHandleAsUnicodeStream = true; - //fUnicode = "UTF-16BE"; //$NON-NLS-1$ - } else if (tokenType == EncodingParserConstants.UTF16LE) { - canHandleAsUnicodeStream = true; - //fUnicode = "UTF-16"; //$NON-NLS-1$ - } - return canHandleAsUnicodeStream; - } - - final private void ensureInputSet() { - if (fReader == null) { - throw new IllegalStateException("input must be set before use"); //$NON-NLS-1$ - } - } - - //private String fUnicode; - - /** - * @return Returns the tokenizer. - */ - private XMLHeadTokenizer getTokenizer() { - if (fTokenizer == null) { - fTokenizer = new XMLHeadTokenizer(); - } - return fTokenizer; - } - - /** - * @return Returns the isXML. - */ - public boolean isXML() throws IOException { - ensureInputSet(); - if (!fHeaderParsed) { - parseInput(); - } - return fIsXML; - } - - private void parseInput() throws IOException { - XMLHeadTokenizer tokenizer = getTokenizer(); - tokenizer.reset(fReader); - HeadParserToken token = null; - String tokenType = null; - do { - token = tokenizer.getNextToken(); - tokenType = token.getType(); - if (canHandleAsUnicodeStream(tokenType)) { - fReader.reset(); - // this is (obviously) not always true. - // TODO: need to fix so we "remember" original iFile or - // inputstream, and - // create appropriate InputStreamReader. - // I'm not sure what to do for the set(reader) case ... if its - // even relevent. - // plus, ensure against infinite loops! - fIsXML = true; - //fReader = new InputStreamReader(fReader, fUnicode); - // parseInput(); - } else { - if (tokenType == XMLHeadTokenizerConstants.XMLDelEncoding) { - fIsXML = true; - } - } - } while (tokenizer.hasMoreTokens()); - - } - - private void resetAll() { - fReader = null; - fHeaderParsed = false; - fIsXML = false; - //fUnicode = null; - - } - - public void set(IFile iFile) throws CoreException { - resetAll(); - InputStream inputStream = iFile.getContents(true); - InputStream resettableStream = new BufferedInputStream(inputStream, MAX_BUF_SIZE); - resettableStream.mark(MAX_MARK_SIZE); - set(resettableStream); - } - - public void set(InputStream inputStream) { - resetAll(); - fReader = new ByteReader(inputStream); - try { - fReader.mark(MAX_MARK_SIZE); - } catch (IOException e) { - // impossible, since we know ByteReader supports marking - throw new Error(e); - } - } - - /** - * Note: this is not part of interface to help avoid confusion ... it - * expected this Reader is a well formed character reader ... that is, its - * all ready been determined to not be a unicode marked input stream. And, - * its assumed to be in the correct position, at position zero, ready to - * read first character. - */ - public void set(Reader reader) { - resetAll(); - fReader = reader; - if (!fReader.markSupported()) { - fReader = new BufferedReader(fReader); - } - - try { - fReader.mark(MAX_MARK_SIZE); - } catch (IOException e) { - // impossble, since we just checked if markable - throw new Error(e); - } - - } - -} |