Problem with [[plugins/map]]:

# Observed behavior:

## given map:

\[[!map pages="blog/tags/*"]]

## received map:

<div class="map">
<ul>
<li><a href="../" class="mapparent">blog</a>
<ul>
<li><a href="../tags/" class="mapparent">tags</a>
<ul>
<li>life
</li>
</ul>
<ul>
<li>tech
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>

Note that you get "blog" and "tags", and they're both links, but "life" and "tech" are not links.

# desired output:

<div class="map">
<ul>
<li><a href="../tags/life/" class="mapitem">life</a>
</li>
<li><a href="../tags/tech/" class="mapitem">tech</a>
</li>
</ul>
</div>

Note that you you don't get "blog" or "tags", and "life" and "tech" are links now.

# patch which appears to achieve this:

<pre>
--- map.pm.orig 2007-11-23 16:04:02.000000000 -0500
+++ map.pm      2007-12-21 00:12:15.000000000 -0500
@@ -37,6 +37,9 @@
                                my @b=split(/\//, $common_prefix);
                                $common_prefix="";
                                while (@a && @b && $a[0] eq $b[0]) {
+                                       if ($common_prefix) {
+                                         $common_prefix .= "/";
+                                       }
                                        $common_prefix.=shift(@a);
                                        shift @b;
                                }
</pre>

# Discussion

(Disclaimer: I don't know ikiwiki internals.)

Map tries to calculate a "common prefix" between the pagespec and the page being rendered, and then later does some substitutions using the prefix.  But the path has /'s in it and the common prefix doesn't, so it never matches correctly.  So, add the /'s.

-- [[users/Larry_Clapp]]

> Excellent problem description and analysis. Patch [[applied|done]] --[[Joey]]
