[Pmwiki-users] Dev Tip: Function Pointers

[Steven Leite]

A good way to return function data to $SquareBrackets[..]= is by setting the script's function to be stored in a $variable as an address (thanks to Dave for explaining that one to me).

Example:

$my_func = & MyFunction( );
$SquareBrackets["[[hook:]]"] = $my_func;

This means the function won't get executed every time PmWiki is executed, but instead, only when [[hook:]] is actually encountered.  

To build on that idea I have a question:

Q:  Is it possible to do something similar when the [[hook:]] contains a back-reference from a regexp?

Example:

$SquareBrackets["[[regexp]]"] = MyFunction($1);
..
function MyFunction($str) { 
// do something with $str
  return $some_output;
}

Thanks,

-S
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