[pmwiki-users] Wiki trail in template header and footer

[Patrick R. Michaud]

On Sun, Dec 11, 2005 at 11:21:13PM -0500, DaveG wrote:
> Appologies for that -- it works as expected when used on a page that's 
> in the trail source. My last problem is to NOT show the trail when 
> $GLOBAL["TrailSource"] is not declared.

Okay, this gets a bit tricky.

Set the trail markup as follows:

    $TrailSource = '';
    Markup('^trail:', 'directives',
      '/^trail:(.*)/e',
      "PZZ(\$GLOBALS['TrailSource']='<<|$1|>>')");

and then in the template, use

    <!--markup:$TrailSource-->

The first line sets $TrailSource to an empty string, in case
there's no (:trail:) markup.  The trail markup sets $TrailSource
to be the entire trail markup including the <<|...|>>.

Pm