If in reference to 'exit' you are referring to J going of to never never
land and not responding to anything- I fail to se where some J command
is going to work. In Windows I can ctrl-alt-delete and shut down J (with
loss of what I was doing) . Does this situation occur- yes , definitely,
-likely because for some unknown reason, I have set up infinite looping
or a situation where J simply chokes (message I get is J is running
normally?)- If it can interrupt a process , q' ' is great but If one
cannot enter q ' ' because the machine is busy chasing its own tail then
what good is it?
Don Kelly
On 20/01/2014 10:31 AM, Devon McCormick wrote:
This is a good point and it's been brought up before. I define
q=: 2!:55
and enter
q''
to exit J but it's not standard. We should probably make "exit" more
accessible.
On Mon, Jan 20, 2014 at 1:23 PM, Blake McBride <bl...@mcbride.name> wrote:
Greetings,
Just providing some feedback....
The fist thing I wanted to know when I started J was how to exit. I did
some research and discovered 2!:55. I then defined a verb and used that to
exit. Therefore, in order to get a clean way to exit a new language, I had
to learn what a verb is, what system verbs were available, how to define
it, and how to load it. (I know about ^d but think that is hardly a clean
way to exit.)
Now, years later, I discover the pre-defined verb 'exit'. I checked the
docs, especially "Learning J". There is no mention of 'exit'!
As someone who has played with many languages over the years, and in fact
an author of one, I respectfully suggest updating chapter 1 of Learning J
to tell the user how to exit. Making a research project out of the first
obvious desire is an unnecessary impediment to a language acquision.
Additionally, since I discovered 'exit', a comprehensive dictionary of
pre-defined verbs would be very helpful. (I know about z, etc.)
Thanks. Just some thoughts...
Blake McBride
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