Can you pass multiple arguments to a helper / filter?

[mattbryson]

We are using mustache to parse config files, and in a few places we want a use a value if its present, else use a default value.

this can be done with...

{{# a }}{{ a }}{{/ a }}{{^ a }}{{ b }}{{/ a }}

So if A was falsey then it would use b instead. However, its getting quite verbose when we have nested properties.

{{# slide.meta.provider.some_property }}{{ slide.meta.provider.some_property }}{{/ slide.meta.provider.some_property }}{{^ slide.meta.provider.some_property }}{{ slide.default_property }}{{/ slide.meta.provider.some_property }}

I have tried to write a filter or helper method to accept 2 values, and return the first if its truthy, and the second if its not, but I cant see a way to pass multiple arguments to a filter or helper.

Is there anyway to do this?

The sudo code would end up looking something like..

    $mustache->addHelper('findValue', function ($a, $b) {
            return !empty($a) ? $a : $b;
       });

{{findValue slide.meta.provider.some_property slide.default_property}} 

Any pointers much appreciated....

[pperzyna]

@bobthecow Any news regarding this issue?