diff options
Diffstat (limited to 'plugins/toolsmiths/gmf-tooling/org.eclipse.papyrus.gmf.xpand/src/org/eclipse/papyrus/gmf/internal/xpand/inactive/ContentDescriber.java')
| -rw-r--r-- | plugins/toolsmiths/gmf-tooling/org.eclipse.papyrus.gmf.xpand/src/org/eclipse/papyrus/gmf/internal/xpand/inactive/ContentDescriber.java | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/plugins/toolsmiths/gmf-tooling/org.eclipse.papyrus.gmf.xpand/src/org/eclipse/papyrus/gmf/internal/xpand/inactive/ContentDescriber.java b/plugins/toolsmiths/gmf-tooling/org.eclipse.papyrus.gmf.xpand/src/org/eclipse/papyrus/gmf/internal/xpand/inactive/ContentDescriber.java deleted file mode 100644 index 63681498d50..00000000000 --- a/plugins/toolsmiths/gmf-tooling/org.eclipse.papyrus.gmf.xpand/src/org/eclipse/papyrus/gmf/internal/xpand/inactive/ContentDescriber.java +++ /dev/null @@ -1,106 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2009, 2020 Borland Software Corporation, CEA LIST, Artal - * - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License 2.0 - * which accompanies this distribution, and is available at - * https://www.eclipse.org/legal/epl-2.0/ - * - * SPDX-License-Identifier: EPL-2.0 - * - * Contributors: - * Artem Tikhomirov (Borland) - initial API and implementation - * Aurelien Didier (ARTAL) - aurelien.didier51@gmail.com - Bug 569174 - *****************************************************************************/ -package org.eclipse.papyrus.gmf.internal.xpand.inactive; - -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.Reader; -import java.nio.CharBuffer; -import java.nio.charset.Charset; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -import org.eclipse.core.runtime.QualifiedName; -import org.eclipse.core.runtime.content.IContentDescription; -import org.eclipse.core.runtime.content.ITextContentDescriber; - -/** - * Major difference from platform's default content describer (which uses BOM) is that we - * supply ISO-8859-1 encoding for legacy template files (those with 0xAB and 0xBB), but keep - * exposing UTF-8 as our default encoding. Besides, we do recognize UTF-8 encoding even if - * there's no BOM in the file (looking for 0xC2 0xAB and 0xC2 0xBB sequences) - * - * Another important aspect of this detector is that it is confident (i.e. VALID) about GMF-Xpand - * content type when there's no IMPORT statement in the template that looks like OAW Xpand. - * @author artem - */ -public class ContentDescriber implements ITextContentDescriber { - private final Pattern myImportClause; - - public ContentDescriber() { - myImportClause = Pattern.compile("IMPORT\\s+"); - } - - public int describe(Reader contents, IContentDescription description) throws IOException { - // no idea what I can tell here, but if I do not implement ITextContentDescriber, attempt to save - // existing! UTF-8 xpt file under template folder with ISO encoding results in error "can't convert UTF to ISO" - // - for some stupid reason Eclipse TextEditor tries to come up with new encoding for existing file - final char[] lookahead = new char[1024]; - int count = contents.read(lookahead); - if (count == 0 || count == -1) { - return INDETERMINATE; - } - return checkSpecificToGMF(CharBuffer.wrap(lookahead, 0, count)); - } - - public int describe(InputStream contents, IContentDescription description) throws IOException { - contents = StreamDecoder.ensureMarkSupported(contents); - int check = INDETERMINATE; - try { - final char[] lookahead = new char[1024]; - contents.mark(lookahead.length + 1); - // use US-ASCII as keywords we are looking for got codes < 127 - int count = new InputStreamReader(contents, Charset.forName("US-ASCII")).read(lookahead); //$NON-NLS-1$ - if (count == 0 || count == -1) { - return INDETERMINATE; - } - check = checkSpecificToGMF(CharBuffer.wrap(lookahead, 0, count)); - if (check == INVALID) { - return INVALID; - } - } finally { - contents.reset(); - } - StreamDecoder sd = new StreamDecoder(contents, null); - if (sd.getEncoding() == null) { - return check; - } - if (description != null) { - description.setProperty(IContentDescription.CHARSET, sd.getEncoding().name()); - } - // XXX alternatively, may return 'check' result, but which content type - // would get assigned to empty (just created) files then? - return VALID; - } - - public QualifiedName[] getSupportedOptions() { - return null; // none - } - - // uses INVALID, VALID and INDETERMINATE constants to indicate - // whether template is "definitely not GMF's", "definitely GMF's" and "can't tell" respectively - private int checkSpecificToGMF(CharSequence s) throws IOException { - Matcher m = myImportClause.matcher(s); - if (m.find()) { - if (m.hitEnd() || m.end() >= s.length()) { - return INDETERMINATE; // found IMPORT, but can't tell what's after that - } - char firstNonSpace = s.charAt(m.end()); - return firstNonSpace == '"' || firstNonSpace == '\'' ? VALID : INVALID; - } - return INDETERMINATE; - } -} |