Re: ly:make-stencil arguments question

[David Kastrup]

Urs Liska <address@hidden> writes:

> Am 19.01.2017 um 09:59 schrieb David Kastrup:
>> Urs Liska <address@hidden> writes:
>>
>>> Am 18.01.2017 um 21:18 schrieb Thomas Morley:
>>>> customClefStencilOne =
>>>>   #(ly:make-stencil `(path 0.2 ',(func 1))
>>> ... I wouldn't have ever thought of that ', combination.
>>>
>>> I had yet another complication because in my actual case "func" would
>>> return an arbitrary number of path segments (i.e. lists) that had to be
>>> flattened with
>>>
>>> (apply append (map l-arc (make-list l-count dir)))
>> (append-map l-arc (make-list l-count dir))
>
> Thank you, this seems to be the appropriate expression.
>
>>
>> And if you need to _splice_ the result in as multiple elements rather
>> than a single list expression use ,@ instead of , for the splicing.
>> That removes the outer pair of parens, so to say.
>
> Well, in my case (for the path expression) I do need the list, so it's
> perfectly sufficient now.
> But just for my enlightenment: to use splicing I have to quasiquote the
> expression, isn't it?

It is.  I mean, you have to.

-- 
David Kastrup