diff options
Diffstat (limited to 'bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/derived/HTML2TextReader.java')
| -rw-r--r-- | bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/derived/HTML2TextReader.java | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/derived/HTML2TextReader.java b/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/derived/HTML2TextReader.java deleted file mode 100644 index 22242b12ee..0000000000 --- a/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/derived/HTML2TextReader.java +++ /dev/null @@ -1,303 +0,0 @@ -/* - * Copyright (c) 2005 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Common Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/cpl-v10.html - * - * Contributors: - * IBM - Initial API and implementation - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - */ -package org.eclipse.wst.sse.ui.internal.derived; - -import java.io.IOException; -import java.io.PushbackReader; -import java.io.Reader; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Map; -import java.util.Set; - -import org.eclipse.jface.text.TextPresentation; -import org.eclipse.swt.SWT; -import org.eclipse.swt.custom.StyleRange; - -/* - * Copied from org.eclipse.jdt.internal.ui.text.HTML2TextReader Modifications - * were made to add br/ tag and fix warnings - */ -/** - * Reads the text contents from a reader of HTML contents and translates the - * tags or cut them out. - */ -public class HTML2TextReader extends SubstitutionTextReader { - - private static final String EMPTY_STRING= ""; //$NON-NLS-1$ - private static final Map fgEntityLookup; - private static final Set fgTags; - - static { - - fgTags= new HashSet(); - fgTags.add("b"); //$NON-NLS-1$ - fgTags.add("br"); //$NON-NLS-1$ - fgTags.add("br/");//$NON-NLS-1$ - fgTags.add("h5"); //$NON-NLS-1$ - fgTags.add("p"); //$NON-NLS-1$ - fgTags.add("dl"); //$NON-NLS-1$ - fgTags.add("dt"); //$NON-NLS-1$ - fgTags.add("dd"); //$NON-NLS-1$ - fgTags.add("li"); //$NON-NLS-1$ - fgTags.add("ul"); //$NON-NLS-1$ - fgTags.add("pre"); //$NON-NLS-1$ - - fgEntityLookup= new HashMap(7); - fgEntityLookup.put("lt", "<"); //$NON-NLS-1$ //$NON-NLS-2$ - fgEntityLookup.put("gt", ">"); //$NON-NLS-1$ //$NON-NLS-2$ - fgEntityLookup.put("nbsp", " "); //$NON-NLS-1$ //$NON-NLS-2$ - fgEntityLookup.put("amp", "&"); //$NON-NLS-1$ //$NON-NLS-2$ - fgEntityLookup.put("circ", "^"); //$NON-NLS-1$ //$NON-NLS-2$ - fgEntityLookup.put("tilde", "~"); //$NON-NLS-2$ //$NON-NLS-1$ - fgEntityLookup.put("quot", "\""); //$NON-NLS-1$ //$NON-NLS-2$ - } - - private int fCounter= 0; - private TextPresentation fTextPresentation; - private int fBold= 0; - private int fStartOffset= -1; - private boolean fInParagraph= false; - private boolean fIsPreformattedText= false; - - /** - * Transforms the html text from the reader to formatted text. - * @param presentation If not <code>null</code>, formattings will be applied to - * the presentation. - */ - public HTML2TextReader(Reader reader, TextPresentation presentation) { - super(new PushbackReader(reader)); - fTextPresentation= presentation; - } - - public int read() throws IOException { - int c= super.read(); - if (c != -1) - ++ fCounter; - return c; - } - - protected void startBold() { - if (fBold == 0) - fStartOffset= fCounter; - ++ fBold; - } - - protected void startPreformattedText() { - fIsPreformattedText= true; - setSkipWhitespace(false); - } - - protected void stopPreformattedText() { - fIsPreformattedText= false; - setSkipWhitespace(true); - } - - protected void stopBold() { - -- fBold; - if (fBold == 0) { - if (fTextPresentation != null) { - fTextPresentation.addStyleRange(new StyleRange(fStartOffset, fCounter - fStartOffset, null, null, SWT.BOLD)); - } - fStartOffset= -1; - } - } - - /* - * @see org.eclipse.jdt.internal.ui.text.SubstitutionTextReader#computeSubstitution(int) - */ - protected String computeSubstitution(int c) throws IOException { - - if (c == '<') - return processHTMLTag(); - else if (c == '&') - return processEntity(); - else if (fIsPreformattedText) - return processPreformattedText(c); - - return null; - } - - private String html2Text(String html) { - - if (html == null || html.length() == 0) - return EMPTY_STRING; - - String tag= html; - if ('/' == tag.charAt(0)) - tag= tag.substring(1); - - if (!fgTags.contains(tag)) - return EMPTY_STRING; - - - if ("pre".equals(html)) { //$NON-NLS-1$ - startPreformattedText(); - return EMPTY_STRING; - } - - if ("/pre".equals(html)) { //$NON-NLS-1$ - stopPreformattedText(); - return EMPTY_STRING; - } - - if (fIsPreformattedText) - return EMPTY_STRING; - - if ("b".equals(html)) { //$NON-NLS-1$ - startBold(); - return EMPTY_STRING; - } - - if ("h5".equals(html) || "dt".equals(html)) { //$NON-NLS-1$ //$NON-NLS-2$ - startBold(); - return EMPTY_STRING; - } - - if ("dl".equals(html)) //$NON-NLS-1$ - return LINE_DELIM; - - if ("dd".equals(html)) //$NON-NLS-1$ - return "\t"; //$NON-NLS-1$ - - if ("li".equals(html)) //$NON-NLS-1$ - return LINE_DELIM + "\t" + "- "; //$NON-NLS-1$ //$NON-NLS-2$ - - if ("/b".equals(html)) { //$NON-NLS-1$ - stopBold(); - return EMPTY_STRING; - } - - if ("p".equals(html)) { //$NON-NLS-1$ - fInParagraph= true; - return LINE_DELIM; - } - - if ("br".equals(html) || "br/".equals(html)) //$NON-NLS-1$ //$NON-NLS-2$ - return LINE_DELIM; - - if ("/p".equals(html)) { //$NON-NLS-1$ - boolean inParagraph= fInParagraph; - fInParagraph= false; - return inParagraph ? EMPTY_STRING : LINE_DELIM; - } - - if ("/h5".equals(html) || "/dt".equals(html)) { //$NON-NLS-1$ //$NON-NLS-2$ - stopBold(); - return LINE_DELIM; - } - - if ("/dd".equals(html)) //$NON-NLS-1$ - return LINE_DELIM; - - return EMPTY_STRING; - } - - /* - * A '<' has been read. Process a html tag - */ - private String processHTMLTag() throws IOException { - - StringBuffer buf= new StringBuffer(); - int ch; - do { - - ch= nextChar(); - - while (ch != -1 && ch != '>') { - buf.append(Character.toLowerCase((char) ch)); - ch= nextChar(); - if (ch == '"'){ - buf.append(Character.toLowerCase((char) ch)); - ch= nextChar(); - while (ch != -1 && ch != '"'){ - buf.append(Character.toLowerCase((char) ch)); - ch= nextChar(); - } - } - if (ch == '<'){ - unread(ch); - return '<' + buf.toString(); - } - } - - if (ch == -1) - return null; - - int tagLen= buf.length(); - // needs special treatment for comments - if ((tagLen >= 3 && "!--".equals(buf.substring(0, 3))) //$NON-NLS-1$ - && !(tagLen >= 5 && "--".equals(buf.substring(tagLen - 2)))) { //$NON-NLS-1$ - // unfinished comment - buf.append(ch); - } else { - break; - } - } while (true); - - return html2Text(buf.toString()); - } - - private String processPreformattedText(int c) { - if (c == '\r' || c == '\n') - fCounter++; - return null; - } - - - private void unread(int ch) throws IOException { - ((PushbackReader) getReader()).unread(ch); - } - - protected String entity2Text(String symbol) { - if (symbol.length() > 1 && symbol.charAt(0) == '#') { - int ch; - try { - if (symbol.charAt(1) == 'x') { - ch= Integer.parseInt(symbol.substring(2), 16); - } else { - ch= Integer.parseInt(symbol.substring(1), 10); - } - return EMPTY_STRING + (char)ch; - } catch (NumberFormatException e) { - // log problem? - } - } else { - String str= (String) fgEntityLookup.get(symbol); - if (str != null) { - return str; - } - } - return "&" + symbol; // not found //$NON-NLS-1$ - } - - /* - * A '&' has been read. Process a entity - */ - private String processEntity() throws IOException { - StringBuffer buf= new StringBuffer(); - int ch= nextChar(); - while (Character.isLetterOrDigit((char)ch) || ch == '#') { - buf.append((char) ch); - ch= nextChar(); - } - - if (ch == ';') - return entity2Text(buf.toString()); - - buf.insert(0, '&'); - if (ch != -1) - buf.append((char) ch); - return buf.toString(); - } -} |