Splitting variable lists based on symbol

PHF

Dear colleagues.
I have a list to change the parameters of multiple processes using [textdefine].

But the size varies between lines, and I would like to split the list whenever I have a new symbol (which will later indicate which process I'm changing, that's already done.)

Example:
ps 0 fft -1 -2 hip 5 0.4 9,3;
fft 0 1 hip 0 1 2;
lop 0 1 2 3;
gran 0 1 2 3 4;
add 0 1 2 3 4 5 sdel 0 1 2 3 4 5 6;

Even though I can use commas to separate them, I need bang only one time per line, independently of its size.For example, when banging only once the first line I have it split into 3 lists:
ps 0
fft -1 -2
hip 5 0.4 9.3

thanks.

jameslo

@PHF Is each symbol (e.g. "ps", "fft") always followed by the same number and types of atom? i.e. if you see any list that begins with "ps", can you just peel off the first two atoms of the list and then continue processing the rest of the list?

whale-av

@PHF
.............. listy.zip
David.

PHF

@jameslo not necessarily, but I think David's solution will work very well.

PHF

@whale-av thank you David, I think this will work very well.

ddw_music

Something I've been toying with in my mind lately is to look for general usage patterns that can help explain cases like this.

One of those is "feed a value forward into storage, to be bang-ed later." ("Feed back" is similar.)

I mean, just the other day there was "sample/hold in the control domain" -- where the solution is store-and-bang. And here, there is a need to accumulate values into a list, but only pass the final list through -- and the solution appends the items into a message box ("store") and an incoming symbol triggers a bang and pushes the output through ("-and-bang").

I'm sure this pattern is used all over the place -- but, without a name, it may not be clearly documented, leaving every user in the position of having to invent it fresh.

hjh