[PD] send message to [r $0_something] from command line?

[Christof Ressi]

> I often create abstractions using $0 as an argument, such as [line-seg 
> 1 2 $0], and then $3 in the abstraction is the same as $0 in the parent. 
That's a common pattern, yes. Your example doesn't contradict my point, 
though: because [line-seq] can't access the parent $0 *), you have to 
pass it from the outside.

> if you really want, you can export the individual $0-values to a text 
> file to be read in the command line.
Please don't. $0 are potentially different every time you open the 
abstraction. Currently, they start with 1000 and increment 
monotonically, but this is really an implementation detail that you 
shouldn't rely upon.

Christof

*) with [iemguts/canvasdollarzero] you can

On 12.12.2021 13:28, João Pais wrote:
>
> you can send something to $0-xxx variables, but you should only do it 
> if it makes sense.
>
> I often create abstractions using $0 as an argument, such as [line-seg 
> 1 2 $0], and then $3 in the abstraction is the same as $0 in the 
> parent. if you really want, you can export the individual $0-values to 
> a text file to be read in the command line. But is it necessary?
>
>
>> $0 is a unique number that only the abstraction itself knows about. 
>> Typically you use it to keep things local. Just like you can't send a 
>> message to [r $0_msg] from another patch, you can't do it with 
>> "-send", either.
>>
>> Just create a new patch, put your abstraction there and add a 
>> [receive foo] (without $0!) that will send the appropriate message to 
>> the abstraction. Now you can do
>>
>> $ pd -nogui -send "foo 1"
>>
>> Christof
>>
>> On 12.12.2021 12:16, padovani wrote:
>>> Hi,
>>>
>>> I have a patch like
>>>
>>> [r $0_msg]
>>> |
>>> [print]
>>>
>>> And would like to run Pd from command line (-nogui -send "....") and 
>>> send something to the receive object.
>>>
>>> How can I pass the '$0_msg' name in a way bash and Pd understand it?
>>>
>>> Have tried different combinations of quotes and bars, but nothing 
>>> works... :/
>>>
>>> thanks!
>>> josé
>>>
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