[pmwiki-users] custom markup - call of method (not function) possible

[Patrick R. Michaud]

On Mon, Feb 07, 2005 at 11:15:04PM +0100, Patrick Ogay wrote:
> 1a)Works:  (:$PageCount :) -> 25
> Markup('{$PageCount}','>{$var}','/\\(:\$PageCount:\\)/e',@$PageCount);     
> 
> 1b)doesn't work:
> $SiteStats =  "<table><td><tr>.... </table>"
> Markup('{$SiteStats}','>{$var}','/\\(:\$SiteStats:\\)/e',@$SiteStats);

The problem is that "/e" in the regexp -- with that it's trying to
execute the value of $SiteStats as PHP code.  For $PageCount it was
okay, because the result of executing "25" is indeed 25, but trying
to execute "<table><td><tr>...</table>" in PHP will give you a parse
error.  :-)

Best is probably the following, assuming the value of $SiteStats won't
change from when it's first initialized:

    Markup('{$SiteStats}', '>{$var}', 
      '/\\(:\\$SiteStats:\\)/', 
      Keep($SiteStats));

If $SiteStats will change, you want
    Markup('{$SiteStats}', '>{$var}', 
      '/\\(:\\$SiteStats:\\)/e', 
      "Keep(\$GLOBALS['SiteStats'])");


> 2a) Works:
> Markup('PageCount', 'directives', '/\\(:$PageCount:\\)/e',"ftest()");
> 2b) doesn't work:
> Markup('PageCount', 'directives', '/\\(:\$PageCount:\\)/e',"$po->ftest1");
> doesn't work
> Markup('PageCount', 'directives', '/\\(:\$PageCount:\\)/e',"\$po->ftest1");
> does nothing

... because when the markup code is actually executed (inside of the
Markup2HTML() function), the variable $po isn't defined.  
If $po is a global variable, you want:

    Markup('PageCount', 'directives',
      '/\\(:\\$PageCount:\\)/e',
      "\$GLOBALS['po']->ftest1");

> Is it possible to call methods in the skin, I didn't try yet.

Sure, just remember that anything in skin.php is being called from
within the SetSkin() function, so that variable references aren't
global by default.

Pm