I think what you have to do is set the SFH_OBJECT_ARGS flag in the third argument of setFunctionHook.

That will change the function signature of your callback to ($parser, $frame, $args). Note that $args might no longer be an array of strings but PPNode (or something) stuff you may have to call $frame->expand() on (i think. It was something like that).

This new form has a PPFrame object as a second arg. You should be able to call $frame->getParent() on it  which should give you what you need.

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Brian

On Monday, February 15, 2021, Yaron Koren <yaron57@gmail.com> wrote:

Hi,

When you have a parser function called from within a template, you can of course pass in to it any template parameters, like:

{{#flagicon:{{{Flag image|}}} }}

(This is a silly example, but bear with me.) I would like to instead be able to call the parser function without the parameter, like this:

{{#flagicon:}}

...and have the parser function directly get the value of the "Flag image" parameter.

I believe this can be done within Lua: when a Lua module is invoked from a template, it can get the names and values of the parameters/arguments that have been passed to that template using (I believe) code that looks like the following:

frame = mw.getCurrentFrame()

origArgs = frame:getParent().args

I tried to do something similar within a parser function's code, using various calls like the following, but nothing worked:

$frame = $parser->getPreProcessor()->newFrame()->newChild();

$args = $frame->getArguments();

Can this be done? Ideally, it would be great to get an array of all the arguments that have been passed to the template - but just being able to get the value for a specified parameter name would be good enough.

-Yaron

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WikiWorks · MediaWiki Consulting · http://wikiworks.com

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