Mercurial > projects > dwt-addons
annotate dwtx/jface/text/hyperlink/URLHyperlinkDetector.d @ 140:26688fec6d23
Following dsss compile errors
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 03:23:46 +0200 |
| parents | 7d818bd32d63 |
| children | 25f1f92fa3df |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Benjamin Muskalla <b.muskalla@gmx.net> - https://bugs.eclipse.org/bugs/show_bug.cgi?id=156433 | |
| 11 * Port to the D programming language: | |
| 12 * Frank Benoit <benoit@tionex.de> | |
| 13 *******************************************************************************/ | |
| 14 module dwtx.jface.text.hyperlink.URLHyperlinkDetector; | |
| 15 | |
| 131 | 16 import dwtx.jface.text.hyperlink.IHyperlinkPresenterExtension; // packageimport |
| 17 import dwtx.jface.text.hyperlink.MultipleHyperlinkPresenter; // packageimport | |
| 18 import dwtx.jface.text.hyperlink.HyperlinkManager; // packageimport | |
| 19 import dwtx.jface.text.hyperlink.URLHyperlink; // packageimport | |
| 20 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension2; // packageimport | |
| 21 import dwtx.jface.text.hyperlink.IHyperlinkDetector; // packageimport | |
| 22 import dwtx.jface.text.hyperlink.IHyperlinkPresenter; // packageimport | |
| 23 import dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter; // packageimport | |
| 24 import dwtx.jface.text.hyperlink.AbstractHyperlinkDetector; // packageimport | |
| 25 import dwtx.jface.text.hyperlink.IHyperlinkDetectorExtension; // packageimport | |
| 26 import dwtx.jface.text.hyperlink.HyperlinkMessages; // packageimport | |
| 27 import dwtx.jface.text.hyperlink.IHyperlink; // packageimport | |
| 28 | |
| 29 | |
| 129 | 30 import dwt.dwthelper.utils; |
| 31 | |
| 32 import java.net.MalformedURLException; | |
| 33 import java.net.URL; | |
| 34 import java.util.StringTokenizer; | |
| 35 | |
| 36 import dwtx.jface.text.BadLocationException; | |
| 37 import dwtx.jface.text.IDocument; | |
| 38 import dwtx.jface.text.IRegion; | |
| 39 import dwtx.jface.text.ITextViewer; | |
| 40 import dwtx.jface.text.Region; | |
| 41 | |
| 42 | |
| 43 /** | |
| 44 * URL hyperlink detector. | |
| 45 * | |
| 46 * @since 3.1 | |
| 47 */ | |
| 48 public class URLHyperlinkDetector : AbstractHyperlinkDetector { | |
| 49 | |
| 50 | |
| 51 /** | |
| 52 * Creates a new URL hyperlink detector. | |
| 53 * | |
| 54 * @since 3.2 | |
| 55 */ | |
|
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56 public this() { |
| 129 | 57 } |
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58 |
| 129 | 59 /** |
| 60 * Creates a new URL hyperlink detector. | |
| 61 * | |
| 62 * @param textViewer the text viewer in which to detect the hyperlink | |
| 63 * @deprecated As of 3.2, replaced by {@link URLHyperlinkDetector} | |
| 64 */ | |
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65 public this(ITextViewer textViewer) { |
| 129 | 66 } |
| 67 | |
| 68 /* | |
| 69 * @see dwtx.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion, bool) | |
| 70 */ | |
| 71 public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion region, bool canShowMultipleHyperlinks) { | |
| 72 if (region is null || textViewer is null) | |
| 73 return null; | |
| 74 | |
| 75 IDocument document= textViewer.getDocument(); | |
| 76 | |
| 77 int offset= region.getOffset(); | |
| 78 | |
| 79 String urlString= null; | |
| 80 if (document is null) | |
| 81 return null; | |
| 82 | |
| 83 IRegion lineInfo; | |
| 84 String line; | |
| 85 try { | |
| 86 lineInfo= document.getLineInformationOfOffset(offset); | |
| 87 line= document.get(lineInfo.getOffset(), lineInfo.getLength()); | |
| 88 } catch (BadLocationException ex) { | |
| 89 return null; | |
| 90 } | |
| 91 | |
| 92 int offsetInLine= offset - lineInfo.getOffset(); | |
| 93 | |
| 94 bool startDoubleQuote= false; | |
| 95 int urlOffsetInLine= 0; | |
| 96 int urlLength= 0; | |
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97 |
| 129 | 98 int urlSeparatorOffset= line.indexOf("://"); //$NON-NLS-1$ |
| 99 while (urlSeparatorOffset >= 0) { | |
| 100 | |
| 101 // URL protocol (left to "://") | |
| 102 urlOffsetInLine= urlSeparatorOffset; | |
| 103 char ch; | |
| 104 do { | |
| 105 urlOffsetInLine--; | |
| 106 ch= ' '; | |
| 107 if (urlOffsetInLine > -1) | |
| 108 ch= line.charAt(urlOffsetInLine); | |
| 109 startDoubleQuote= ch is '"'; | |
| 110 } while (Character.isUnicodeIdentifierStart(ch)); | |
| 111 urlOffsetInLine++; | |
| 112 | |
| 113 // Right to "://" | |
| 114 StringTokenizer tokenizer= new StringTokenizer(line.substring(urlSeparatorOffset + 3), " \t\n\r\f<>", false); //$NON-NLS-1$ | |
| 115 if (!tokenizer.hasMoreTokens()) | |
| 116 return null; | |
| 117 | |
| 118 urlLength= tokenizer.nextToken().length() + 3 + urlSeparatorOffset - urlOffsetInLine; | |
| 119 if (offsetInLine >= urlOffsetInLine && offsetInLine <= urlOffsetInLine + urlLength) | |
| 120 break; | |
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121 |
| 129 | 122 urlSeparatorOffset= line.indexOf("://", urlSeparatorOffset + 1); //$NON-NLS-1$ |
| 123 } | |
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124 |
| 129 | 125 if (urlSeparatorOffset < 0) |
| 126 return null; | |
| 127 | |
| 128 if (startDoubleQuote) { | |
| 129 int endOffset= -1; | |
| 130 int nextDoubleQuote= line.indexOf('"', urlOffsetInLine); | |
| 131 int nextWhitespace= line.indexOf(' ', urlOffsetInLine); | |
| 132 if (nextDoubleQuote !is -1 && nextWhitespace !is -1) | |
| 133 endOffset= Math.min(nextDoubleQuote, nextWhitespace); | |
| 134 else if (nextDoubleQuote !is -1) | |
| 135 endOffset= nextDoubleQuote; | |
| 136 else if (nextWhitespace !is -1) | |
| 137 endOffset= nextWhitespace; | |
| 138 if (endOffset !is -1) | |
| 139 urlLength= endOffset - urlOffsetInLine; | |
| 140 } | |
| 141 | |
| 142 // Set and validate URL string | |
| 143 try { | |
| 144 urlString= line.substring(urlOffsetInLine, urlOffsetInLine + urlLength); | |
| 145 new URL(urlString); | |
| 146 } catch (MalformedURLException ex) { | |
| 147 urlString= null; | |
| 148 return null; | |
| 149 } | |
| 150 | |
| 151 IRegion urlRegion= new Region(lineInfo.getOffset() + urlOffsetInLine, urlLength); | |
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152 return [new URLHyperlink(urlRegion, urlString)]; |
| 129 | 153 } |
| 154 | |
| 155 } |