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

[DaveG]

Thank you very much. As you guessed, I was hacking this as I went along, 
and got totally caught up in setting a variable. Didn't stop to think to 
a simpler solution.

I'd like to write this up, and put it on the wiki. Is there a place it 
fits best?

Patrick R. Michaud wrote:
> 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
>