From d6b9db7926af4dc6d7df5af55d261731bd623c23 Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david+git@madore.org>
Date: Fri, 10 Oct 2014 21:21:14 +0200
Subject: Introduce a WeblogLink class to refactor a lot of code on how links
 are written.

---
 org/madore/damlengine/TodoWrefAttr.java | 79 ++++++++++++++++++---------------
 1 file changed, 42 insertions(+), 37 deletions(-)

(limited to 'org/madore/damlengine/TodoWrefAttr.java')

diff --git a/org/madore/damlengine/TodoWrefAttr.java b/org/madore/damlengine/TodoWrefAttr.java
index 428000a..642ecae 100644
--- a/org/madore/damlengine/TodoWrefAttr.java
+++ b/org/madore/damlengine/TodoWrefAttr.java
@@ -23,16 +23,16 @@ public class TodoWrefAttr extends TodoAttr {
 
     @Override
     public void handle() {
-	String wrefStr = attr.getValue();
-	Matcher wrefMatcher = Pattern.compile("^\\#d\\.(\\d{4})-(\\d{2})-(\\d{2})\\.(\\d{4})(|\\..*)$").matcher(wrefStr);
+	final String wrefStr = attr.getValue();
+	final Matcher wrefMatcher = Pattern.compile("^\\#d\\.(\\d{4})-(\\d{2})-(\\d{2})\\.(\\d{4})(|\\..*)$").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);
-	int wrefNumber = Integer.parseInt(wrefNumberStr);
-	String wrefSupplementStr = wrefMatcher.group(5);
+	final String wrefYearStr = wrefMatcher.group(1);
+	final String wrefMonthStr = wrefMatcher.group(2);
+	final String wrefDayStr = wrefMatcher.group(3);
+	final String wrefNumberStr = wrefMatcher.group(4);
+	final int wrefNumber = Integer.parseInt(wrefNumberStr);
+	final String wrefSupplementStr = wrefMatcher.group(5);
 	String wrefCat;
 	if ( this.owner.hasAttributeNS(DamlEngine.DAML_NS, "wrefcat") ) {
 	    wrefCat = this.owner.getAttributeNS(DamlEngine.DAML_NS, "wrefcat");
@@ -40,10 +40,9 @@ public class TodoWrefAttr extends TodoAttr {
 	} else {
 	    wrefCat = null;
 	}
-	String targetFile;
-	String targetStdDir = (ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/");
-	WeblogSummary wsum = WeblogSummary.getSummary();
-	WeblogSummary.EntrySummary esum;
+	final String baseDir = (ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/");
+	final WeblogSummary wsum = WeblogSummary.getSummary();
+	final WeblogSummary.EntrySummary esum;
 	// Get entry for target link from weblog summary
 	if ( wsum != null && wsum.entries != null )
 	    esum = wsum.entries.get(wrefNumber);
@@ -60,39 +59,45 @@ public class TodoWrefAttr extends TodoAttr {
 		    throw new IllegalArgumentException("reference to entry "+wrefNumberStr+" in wrong category "+wrefCat);
 	    }
 	}
-	// Choose file portion of link target
-	if ( esum != null && esum.doSinglePage != null && ! wrefSupplementStr.equals("") ) {
+	// Prepare link object
+	final WeblogLink lk;
+	if ( esum != null && esum.doSinglePage != null )
+	    lk = new WeblogLink(wrefYearStr, wrefMonthStr, wrefDayStr,
+				wrefNumberStr, wrefSupplementStr,
+				esum.doSinglePage);
+	else
+	    lk = new WeblogLink(wrefYearStr, wrefMonthStr, wrefDayStr,
+				wrefNumberStr, wrefSupplementStr);
+	// Decide whether link target is on this page
+	final boolean onThisPage;
+	if ( lk.singlePage != null && ! lk.supplementStr.equals("") ) {
 	    // Linking to a _fragment_ of an entry that has a single page.
-	    if ( wrefCat != null && ! wrefCat.equals("@single") )
-		System.err.println("warning: ignoring d:wrefcat attribute!");
 	    if ( ctx.wsc != null && ctx.wsc.sel != null
 		 && ctx.wsc instanceof Context.WeblogSingleSelectionContext
 		 && ((Context.WeblogSingleSelectionContext)ctx.wsc).number == wrefNumber )
-		targetFile = "";
+		onThisPage = true;
 	    else
-		targetFile = targetStdDir + esum.date + "-" + esum.doSinglePage + ".html";
-	} else if ( ctx.wsc != null && ctx.wsc.sel != null
-	     && ctx.wsc.sel.contains(wrefNumber) ) {
-	    // Linking to an entry already present on this page.
-	    targetFile = "";
-	} else if ( wrefCat != null && ! wrefCat.equals("@month")
-		    && ! wrefCat.equals("@single") ) {
-	    // Linking to an entry in a designated category.
-	    targetFile = targetStdDir + wrefCat + ".html";
+		onThisPage = false;
 	} else {
-	    // Linking to an entry in its month, or single page.
-	    targetFile = targetStdDir + wrefYearStr + "-" + wrefMonthStr + ".html";
-	    if ( esum != null && esum.doSinglePage != null
-		 // Note to self: remember we could be called from d:wxref
-		 // because of link on "older entries".
-		 && ( wrefCat == null || wrefCat.equals("@single") ) ) {
-		targetFile = targetStdDir + esum.date + "-" + esum.doSinglePage + ".html";
-	    }
+	    if ( ctx.wsc != null && ctx.wsc.sel != null
+		 && ctx.wsc.sel.contains(wrefNumber) )
+		onThisPage = true;
+	    else
+		onThisPage = false;
 	}
+	// Choose file portion of link target
+	if ( onThisPage )
+	    lk.setTypeRelative();
+	else if ( wrefCat == null )
+	    lk.setTypeStandard();
+	else if ( wrefCat.equals("@month") )
+	    lk.setTypeMonth();
+	else if ( wrefCat.equals("@single") )
+	    lk.setTypeSingle();
+	else
+	    lk.setTypeCat(wrefCat);
 	// Construct full link target
-	String targetFragment = "d." + wrefYearStr + "-" + wrefMonthStr
-	    + "-" + wrefDayStr + "." + wrefNumberStr + wrefSupplementStr;
-	String target = targetFile + "#" + targetFragment;
+	String target = lk.getTarget(baseDir);
 	// Class and title attributes
 	if ( ! this.owner.hasAttributeNS(null, "class") )
 	    this.owner.setAttributeNS(null, "class", "weblog-internal-link");
-- 
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