[PD] Default symbol if not set by arg

[Hans-Christoph Steiner]

On Apr 24, 2006, at 12:51 PM, Chris McCormick wrote:

> Hey All,
>
> When taking integer arguments in an abstraction, it's nice  
> sometimes to
> set a default if the argument is not set. For this you can do  
> something
> like:
>
> [$1]
> |
> [select 0]
> |      /
> [45(  /
> |    /
> [f   ]
>
> Or maybe something even simpler.
>
> I would like to do something similar for symbolic arguments. I.e. if
> an argument is supplied, use it, otherwise use some default or take
> some other action. Unfortunately there seems to be no way to detect an
> 'empty' symbol. Has anyone got any ideas?

You want [float_argument], [symbol_argument], and [any_argument], in  
CVS: abstractions/purepd

This is how you test for a blank symbol:


|            [loadbang]
|             |
|            [symbol]
|             |
[select symbol]
|             |

.hc




>
> Best rgds,
>
> Chris.
>
> -------------------
> chris at mccormick.cx
> http://mccormick.cx
>
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