it would be the same magic as {{ distinguished from { { (without space)
On Tuesday, July 27, 2021, 09:13:01 a.m. EDT, 'Mike Day' via Programming
<[email protected]> wrote:
Except <> is a valid train, so would need special treatment.
I suppose the user could set a separator string or strings of their choice,
probably in a config file.
Cheers,
Mike
Sent from my iPad
> On 27 Jul 2021, at 09:48, Mike Day <[email protected]> wrote:
>
> ... or even <> a la APL!?
> Mike
>
> Sent from my iPad
>
>> On 27 Jul 2021, at 02:18, Henry Rich <[email protected]> wrote:
>>
>> I don't see much downside to implementing a sentence delimiter, except for a
>> nagging feeling that the good Lord left that space for you to put commentary
>> in.
>>
>> Take a moment to consider what is the best delimiter. I prefer >:: to .. or
>> ... because it shows the left-to-right order.
>>
>> Henry Rich
>>
>>> On 7/26/2021 10:44 AM, 'Michael Day' via Programming wrote:
>>> APL lives/d with the diamond separator, which works from left to right,
>>> in addition to
>>> left tack and right tack (in Dyalog anyway) which are similar to J's [ and
>>> ] .
>>>
>>> So this modification might help recruit any APL-ers still averse to or
>>> unaware of J.
>>>
>>> Cheers,
>>>
>>> Mike
>>>
>>>> On 26/07/2021 14:47, Eric Iverson wrote:
>>>> Michal,
>>>> I slightly favor having a statement separator. Others are violently
>>>> opposed. You have started an interesting discussion that might take a while
>>>> to pick up steam. Don't give up yet!
>>>>
>>>> There are some complicating issues, such as debug.
>>>>
>>>> On Mon, Jul 26, 2021 at 4:57 AM Michal Wallace <[email protected]>
>>>> wrote:
>>>>
>>>>> Come on... :) Obviously I know how to write the code I wrote. :D
>>>>> Yes, I can write the whole thing like this:
>>>>>
>>>>> puts@']' fgc@9 puts 4 {. s=.1|.s [ fgc@15 puts@'[' goxy xy [ bgc 4 [ fgc 9
>>>>>
>>>>> I'm just saying it looks backwards and awkward to me.
>>>>>
>>>>> This thing draws a string on the screen that looks like [.oOo] in
>>>>> various colors, and the .oOo part is extracted from a larger string
>>>>> so it looks like a little indicator that the machine is still doing
>>>>> something
>>>>> or waiting for you to do something. (Or rather, this draws one frame of
>>>>> the
>>>>> animation)
>>>>>
>>>>> If I were putting that string together without setting the colors and
>>>>> moving the cursor, i'd write:
>>>>>
>>>>> echo '[', (s=.1|.s), ']'
>>>>>
>>>>> But with the color and cursor stuff, I seem to have to break it into
>>>>> multiple lines, or write it backwards.
>>>>>
>>>>> In this particular case, what I plan to do instead is write a little
>>>>> language that lets me set colors
>>>>> and move the cursor in the natural order, so it's not a big deal... (Maybe
>>>>> for J, i'll just make a
>>>>> "left-to-right" verb that operates on gerunds or something...)
>>>>>
>>>>> But... lately, I've also been working on some parser combinators, and a
>>>>> small virtual machine.
>>>>> In all these cases, I have bits and pieces of the code which are more
>>>>> naturally expressed as
>>>>> sequences of imperative operations, rather than function compositions, and
>>>>> I find myself
>>>>> wanting this same statement separator.
>>>>>
>>>>> I use K every day at work, and it uses the semicolon for this purpose. I
>>>>> often find myself wishing K
>>>>> had forks, and J had statement separators. (and native dictionaries, and a
>>>>> literal syntax for symbols.. :))
>>>>>
>>>>> Anyway, I noticed '..' was free now and it seems to have a nice symmetry
>>>>> with '{{' and '}}'
>>>>> and I thought it might be a good notation for this.
>>>>>
>>>>> I don't really expect this proposal to make it into the language (for one
>>>>> thing, it's not clear to me that
>>>>> there's an actual process by which language decisions get made), but... I
>>>>> also didn't expect we'd
>>>>> ever get anything like {{ and }} (which I've also wanted forever), so I'm
>>>>> asking.
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Jul 25, 2021 at 9:45 PM 'robert therriault' via Programming <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> Hi Michal,
>>>>>>
>>>>>> In your first line you are already doing what I would do, which is to use
>>>>>> [ to separate the different results.
>>>>>>
>>>>>> goxy xy [ bgc 4 [ fgc 9
>>>>>>
>>>>>> You can continue to do that as long as you get the order right and lower
>>>>>> things vertically would precede the upper ones
>>>>>>
>>>>>> fgc 15 [ puts '[' [ goxy xy [ bgc 4 [ fgc 9
>>>>>>
>>>>>> or perhaps I am misunderstanding what you are trying to do.
>>>>>>
>>>>>> Cheers, bob
>>>>>>
>>>>>>
>>>>>>
>>>>>>> On Jul 25, 2021, at 17:00, Michal Wallace <[email protected]>
>>>>>> wrote:
>>>>>>> I love the new '{{' and '}}' ...
>>>>>>>
>>>>>>> what are the chances we could bring '..' back as a statement separator,
>>>>>> at
>>>>>>> least inside these new double curly braces?
>>>>>>>
>>>>>>> Often I have a bunch of really short lines that I would love to just
>>>>>> stick
>>>>>>> on one line, like this demo code from the terminal library I'm working
>>>>>> on:
>>>>>>> while. -. keyp'' do.
>>>>>>> goxy xy [ bgc 4 [ fgc 9
>>>>>>> puts '['
>>>>>>> fgc 15
>>>>>>> puts 4{. s=.1|.s
>>>>>>> fgc 9
>>>>>>> puts']'
>>>>>>> sleep 150
>>>>>>> end.
>>>>>>>
>>>>>>> I can easily stick these on one line with @ or [: but the code winds up
>>>>>>> feeling very backward, so I find myself just using newlines and
>>>>> wasting a
>>>>>>> lot of vertical space on my screen.
>>>>>>>
>>>>>>> One answer here is to make a mini-language for terminal operations
>>>>> that I
>>>>>>> can just pass as a string, but there are other places where I find
>>>>> myself
>>>>>>> wishing I could just write a sequence of expressions (evaluated
>>>>>>> right-to-left as usual) but all on one line, and sequence them from
>>>>> left
>>>>>> to
>>>>>>> right... (I use K at work, and this is a pretty natural style)
>>>>>>> ----------------------------------------------------------------------
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>>>
>>>
>>
>>
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