You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
216 lines
8.3 KiB
216 lines
8.3 KiB
// LinkToken.java
|
|
// ---------
|
|
// part of YaCy
|
|
// (C) by Michael Peter Christen; mc@anomic.de
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2007
|
|
// Created 22.02.2007
|
|
//
|
|
// This file is contributed by Franz Brausze
|
|
//
|
|
// $LastChangedDate: $
|
|
// $LastChangedRevision: $
|
|
// $LastChangedBy: $
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
|
// running) means that you agree that the Author(s) is (are) not responsible
|
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
|
// by usage of this softare or this documentation. The usage of this software
|
|
// is on your own risk. The installation and usage (starting/running) of this
|
|
// software may allow other people or application to access your computer and
|
|
// any attached devices and is highly dependent on the configuration of the
|
|
// software which must be done by the user of the software; the author(s) is
|
|
// (are) also not responsible for proper configuration and usage of the
|
|
// software, even if provoked by documentation provided together with
|
|
// the software.
|
|
//
|
|
// Any changes to this file according to the GPL as documented in the file
|
|
// gpl.txt aside this file in the shipment you received can be done to the
|
|
// lines that follows this copyright notice here, but changes must not be
|
|
// done inside the copyright notive above. A re-distribution must contain
|
|
// the intact and unchanged copyright notice.
|
|
// Contributions and changes to the program code must be marked as such.
|
|
|
|
package de.anomic.data.wiki.tokens;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Iterator;
|
|
import java.util.regex.Matcher;
|
|
import java.util.regex.Pattern;
|
|
|
|
import de.anomic.data.bookmarksDB;
|
|
import de.anomic.data.bookmarksDB.Bookmark;
|
|
import de.anomic.data.bookmarksDB.Tag;
|
|
import de.anomic.data.wiki.wikiParserException;
|
|
import de.anomic.plasma.plasmaSwitchboard;
|
|
|
|
public class LinkToken extends AbstractToken {
|
|
|
|
private static final int IMG = 0;
|
|
private static final int BKM = 1;
|
|
private static final int INT = 2;
|
|
private static final int EXT = 3;
|
|
|
|
private static final Pattern imgPattern = Pattern.compile(
|
|
"\\[\\[" + // begin
|
|
"(Image:([^\\]|]|\\][^\\]])*)" + // "Image:" + URL
|
|
"(" + // <optional>
|
|
"(\\|(bottom|left|center|right|middle|top))?" + // optional align
|
|
"(\\|(([^\\]]|\\][^\\]])*))" + // description
|
|
")?" + // </optional>
|
|
"\\]\\]"); // end
|
|
|
|
private static final Pattern bkmPattern = Pattern.compile(
|
|
"\\[\\[" + // begin
|
|
"(Bookmark:([^\\]|]|\\][^\\]])*)" + // "Bookmark:" + URL
|
|
"(\\|(([^\\]]|\\][^\\]])*?))?" + // optional description
|
|
"\\]\\]"); // end
|
|
|
|
private static final Pattern intPattern = Pattern.compile(
|
|
"\\[\\[" + // begin
|
|
"(([^\\]|]|\\][^\\]])*?)" + // wiki-page
|
|
"(\\|(([^\\]]|\\][^\\]])*?))?" + // optional desciption
|
|
"\\]\\]"); // end
|
|
|
|
private static final Pattern extPattern = Pattern.compile(
|
|
"\\[" + // begin
|
|
"([^\\] ]*)" + // URL
|
|
"( ([^\\]]*))?" + // optional description
|
|
"\\]"); // end
|
|
|
|
private static final Pattern[] patterns = new Pattern[] {
|
|
imgPattern, bkmPattern, intPattern, extPattern };
|
|
|
|
private final String localhost;
|
|
private final String wikiPath;
|
|
private final plasmaSwitchboard sb;
|
|
private int patternNr = 0;
|
|
|
|
public LinkToken(String localhost, String wikiPath, plasmaSwitchboard sb) {
|
|
this.localhost = localhost;
|
|
this.wikiPath = wikiPath;
|
|
this.sb = sb;
|
|
}
|
|
|
|
protected void parse() throws wikiParserException {
|
|
StringBuffer sb = new StringBuffer();
|
|
if (this.patternNr < 0 || this.patternNr >= patterns.length)
|
|
throw new wikiParserException("patternNr was not set correctly: " + this.patternNr);
|
|
Matcher m = patterns[this.patternNr].matcher(this.text);
|
|
if (!m.find())
|
|
throw new wikiParserException("Didn't find match for: (" + this.patternNr + ") " + this.text);
|
|
|
|
switch (this.patternNr) {
|
|
case IMG:
|
|
sb.append("<img src=\"").append(formatHref(m.group(1).substring(6))).append("\"");
|
|
if (m.group(5) != null) sb.append(" align=\"").append(m.group(5)).append("\"");
|
|
sb.append(" alt=\"").append((m.group(7) == null) ? formatHref(m.group(1).substring(6)) : m.group(7)).append("\"");
|
|
sb.append(" />");
|
|
break;
|
|
|
|
case BKM:
|
|
Link[] links = getLinksFromBookmarkTag(m.group(2));
|
|
if (links == null) {
|
|
sb.append("<span class=\"error\">Couldn't find Bookmark-Tag '").append(m.group(2)).append("'.</span>");
|
|
} else {
|
|
appendLinks(links, sb);
|
|
}
|
|
break;
|
|
|
|
case INT:
|
|
sb.append(new Link(
|
|
"http://" + this.localhost + "/" + this.wikiPath + m.group(1),
|
|
m.group(4),
|
|
(m.group(4) == null) ? m.group(1) : m.group(4)
|
|
).toString());
|
|
break;
|
|
|
|
case EXT:
|
|
sb.append(new Link(
|
|
m.group(1),
|
|
m.group(3),
|
|
(m.group(3) == null) ? m.group(1) : m.group(3)
|
|
).toString());
|
|
break;
|
|
}
|
|
this.parsed = true;
|
|
this.markup = new String(sb);
|
|
}
|
|
|
|
private String formatHref(String link) {
|
|
if (link.indexOf("://") == -1) { // DATA/HTDOCS-link
|
|
return "http://" + this.localhost + "/share/" + link;
|
|
} else { // 'normal' link
|
|
return link;
|
|
}
|
|
}
|
|
|
|
private StringBuffer appendLinks(Link[] links, StringBuffer sb) {
|
|
for (int i=0; i<links.length; i++)
|
|
sb.append(links[i].toString());
|
|
return sb;
|
|
}
|
|
|
|
private Link[] getLinksFromBookmarkTag(String tagName) {
|
|
Tag tag = this.sb.bookmarksDB.getTag(bookmarksDB.tagHash(tagName));
|
|
if (tag == null) return null;
|
|
ArrayList<Link> r = new ArrayList<Link>();
|
|
Iterator<String> it = tag.getUrlHashes().iterator();
|
|
String hash;
|
|
Bookmark bm;
|
|
while (it.hasNext())
|
|
if ((hash = it.next()) != null)
|
|
if ((bm = this.sb.bookmarksDB.getBookmark(hash)) != null)
|
|
r.add(new Link(bm.getUrl(), bm.getTitle(), bm.getDescription()));
|
|
return r.toArray(new Link[r.size()]);
|
|
}
|
|
|
|
private static class Link {
|
|
|
|
private final String href;
|
|
private final String title;
|
|
private final String desc;
|
|
|
|
public Link(String href, String title, String desc) {
|
|
this.href = href;
|
|
this.title = title;
|
|
this.desc = desc;
|
|
}
|
|
|
|
public String toString() {
|
|
StringBuffer sb = new StringBuffer();
|
|
sb.append("<a href=\"").append(this.href).append("\"");
|
|
if (this.title != null) sb.append(" title=\"").append(this.title).append("\"");
|
|
sb.append(">");
|
|
if (this.desc == null) sb.append(this.href); else sb.append(this.desc);
|
|
sb.append("</a>");
|
|
return new String(sb);
|
|
}
|
|
}
|
|
|
|
public String[] getBlockElementNames() { return null; }
|
|
public Pattern[] getRegex() { return patterns; }
|
|
|
|
public boolean setText(String text, int patternNr) {
|
|
this.text = text;
|
|
this.patternNr = patternNr;
|
|
this.parsed = false;
|
|
if (text == null) { this.markup = null; this.patternNr = -1; }
|
|
return true;
|
|
}
|
|
}
|