Hi Jonathan,
I am probably confused, or confusing here, but I was suggesting this as a mechanism whereby the author of an abstraction could have the abstraction accept named arguments set by a user of the abstraction.
In that light I am confused by what you've written below, sorry about that! You seem to be specifying a way for an abstraction to set up internal defaults, is that right?
I don't have access to "initbang" in the Pd I use yet.
Cheers,
Chris.
On 24/10/14 12:11, Jonathan Wilkes via Pd-list wrote:
Hi Chris, I prefer the idea of using the comma atom to send messages to an object/abstraction at init time.
Example: [bar 15 25( | [foo]
would be equivalent to
[initbang] | [foo, bar 15 25]
Benefits:
- messages can be type-checked or arbitrary length, just like any pd message
- eases development of externals. For instance, sigmund~ would have had
96 fewer lines of code because this syntax would have done away with the need for flags
- it looks like message-box syntax and behaves nearly the same
- once implemented, it would automatically apply (consistently) to every
internal/external object
- matju already implemented it in Gridflow
Drawbacks:
- [expr], [list], [select], [route], and a few others would need to be
treated specially to retain their current behavior regarding commas
- abstractions require some mechanism to retrieve those init-time
messages. I believe matju had them shoot out the leftmost inlet of the abstraction, with the assumption that the user would have a [route] sitting there to parse them. Another idea would be to retrieve them from an introspection object like [canvasinfo] (and maybe have another object which splits that into a sequence of messages).
-Jonathan On Thursday, October 23, 2014 11:28 PM, Chris McCormick chris@mccormick.cx wrote:
Hi all,
Here's a design pattern for passing named arguments ("bar=true foo=12") into an abstraction.
Cheers,
Chris.
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