Re: [PHP Template] Re: [PHP3] PHP Template Engine spec revision 0.35

On Thu, 24 Feb 2000, Kristian Köhntopp wrote:
> My code is loading a template which has been tampered with by
> the designer with a clue deficiency. I want to
> 
> - get a list of all variables used in the template
> 
>   $hash = tmpl_variable_list(resource tmpl);
>   reset($hash);
>   while(list($k, $v) = each($hash)):
>     print "variable named $k ist of type $v\n";
>   endwhile;
> 
>   with $v being either assigned, config or internal.

Well, if the engine sees an internal variable it does not recognize it
will give a parse error. Otherwise, a function like this could be
useful, I suppose.

> - check my array values against the template and get a
>   list of all variables within that template which have 
>   not yet been assigned a value
> 
>   $hash = tmpl_variable_unassigned(resource tmpl)
>   # as above

Ok, this can be done.

> - define error handling for fetch and print operations:
>   - unassigned variables are left untouched in the output
>   - unassigned variables are substituted by HTML comments
>     <!-- unassigned variable $imanunassignedvariable -->
>   - unassigned variables are substited by nothing
> 
>   define(TMPL_KEEP, 0);
>   define(TMPL_COMMENT, 1);
>   define(TMPL_REMOVE, 2);
> 
>   tmpl_handle_errors(int mode);

There is .ini setting for this, which can be changed with ini_alter(),
but I'm thinking of making some tmpl_*() convenience functions for this.


-Andrei
* On the keyboard of life, always keep one finger on the escape key. *