[9fans] 9p write event to Acme?

[James A. Robinson]

[argh, I posted this to the google group though I know that it won't show up...]

Folks,

I'm interested in writing some Acme commands to simulate

execution of certain built-in commands.  For example, I would

like to be able to simulate the user 2-1 chording on an Edit

command in the tag.

Is my understanding correct if I am thinking that this would

consist of a single event

c0: M

c1: x

flag ^= 8

nb: 4

nr: 4

text: Edit

arg: ...

where ... represents the argument passed to Edit?

Or would this consist of two events, with text set

to Edit and then to the command to pass in?

It's not clear to me if I also have muck with q0, q1,

oq0, oq1 or loc.  I was guessing that only people

reading an event would be interested in those.

I looked around to see if I could find examples of

programs sending events to acme via 9p, but I haven't

managed to find them.  I see several examples of

scripts calling something named winwriteevent, and

the man page for that sounds promising, but I don't

see it as part of plan9port, and I was guessing that

people might use 9p write to acme/$winid/event

instead, or write Go/C program using the acme api

libraries that Russ provided?

Jim

[James A. Robinson]

So I see that it actually isn't possible to do what

I want, that the write operations to an event file

are limited to just positional information.  That's

unfortunate, I had really hoped it was possible to

simulate events via an external program.

.../src/libacme/acme.c:

int
winwriteevent(Win *w, Event *e)
{
char buf[100];

snprint(buf, sizeof buf, "%c%c%d %d \n", e->c1, e->c2, e->q0, e->q1);
return fswrite(wfid(w, "event"), buf, strlen(buf));
}