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package org.madore.damlengine;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import org.w3c.dom.*;
public class TodoWrefAttr extends TodoAttr {
public static class Factory extends TodoAttr.Factory {
@Override
public TodoWrefAttr newItem(Attr attr, Element owner,
Context ctx,
TodoItem caller) {
return new TodoWrefAttr(attr, owner, ctx, caller);
}
}
public TodoWrefAttr(Attr attr, Element owner,
Context ctx,
TodoItem caller) {
super(attr, owner, ctx, caller);
}
@Override
public void handle() {
String wrefStr = attr.getValue();
Matcher wrefMatcher = Pattern.compile("^\\#d\\.(\\d{4})-(\\d{2})-(\\d{2})\\.(\\d{4})(|\\..*)$").matcher(wrefStr);
if ( ! wrefMatcher.matches() )
throw new IllegalArgumentException("wref attribute must be of the form #d.YYYY-MM-DD.NNNN[.xxx]");
String wrefYearStr = wrefMatcher.group(1);
String wrefMonthStr = wrefMatcher.group(2);
String wrefDayStr = wrefMatcher.group(3);
String wrefNumberStr = wrefMatcher.group(4);
String wrefSupplementStr = wrefMatcher.group(5);
String targetFile = "";
if ( ctx.wsc != null && ctx.wsc.sel != null
&& ctx.wsc.sel.contains(new Integer(wrefNumberStr)) )
targetFile = "";
else
targetFile = ((ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/"))
+ wrefYearStr + "-" + wrefMonthStr + ".html";
String targetFragment = "d." + wrefYearStr + "-" + wrefMonthStr
+ "-" + wrefDayStr + "." + wrefNumberStr + wrefSupplementStr;
String target = targetFile + "#" + targetFragment;
if ( ! this.owner.hasAttributeNS(null, "class") )
this.owner.setAttributeNS(null, "class", "weblog-internal-link");
WeblogSummary wsum = WeblogSummary.getSummary();
if ( wsum != null && wsum.entries != null ) {
WeblogSummary.EntrySummary esum
= wsum.entries.get(new Integer(wrefNumberStr));
if ( esum != null ) {
if ( ! ((wrefYearStr+"-"+wrefMonthStr+"-"+wrefDayStr)
.equals(esum.date)) )
throw new IllegalArgumentException("date mismatch for reference to entry "+wrefNumberStr);
if ( esum.doSinglePage != null
&& ! wrefSupplementStr.equals("")
// Note to self: remember we could be called from d:wxref
// because of link on "older entries": we don't want
// to link to single entry page in this case. :-\
&& ! ( ctx.wsc instanceof Context.WeblogSingleSelectionContext ) ) {
targetFile = ((ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/"))
+ esum.date + "-" + esum.doSinglePage + ".html";
target = targetFile + "#" + targetFragment;
}
if ( wrefSupplementStr.equals("")
&& ! this.owner.hasAttributeNS(null, "title")
&& esum.title != null )
this.owner.setAttributeNS(null, "title", esum.title);
}
}
this.owner.removeAttributeNode(this.attr);
this.owner.setAttributeNS(null, "href", target);
}
}
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