On 23 June 2016 at 15:28, Xiao-Yong Jin wrote:
>
> > On Jun 23, 2016, at 7:07 AM, Louis Chretien wrote:
> >
> > R←{X} (A ⎕R B) Y
>
> The line on the title? It’s not really the language syntax. It’s their
> way to tell you that ⎕R is an operator that receives required left and
> right operands
> On Jun 23, 2016, at 7:07 AM, Louis Chretien wrote:
>
> R←{X} (A ⎕R B) Y
The line on the title? It’s not really the language syntax. It’s their way to
tell you that ⎕R is an operator that receives required left and right operands
A and B, and creates a ambivalent function that applies on r
As strange as it may seem, the parenthesed expression returns an operator,
which is then applied to the function on the left.
GNU APL does not support first-class functions (and operators) so this
syntax is not an option for us.
Regards,
Elias
On 23 Jun 2016 8:08 pm, "Louis Chretien" wrote:
> S
Since Dyalog has created those ⎕R and ⎕S, it might be a good starting point.
But i am always baffled by the syntax of using parenthesis to group on the
function on the left and have it applied to the right argument, like Dialog
shows on their webpage:
R←{X} (A ⎕R B) Y
> On Jun 22, 2016, at 14
Hi,
I believe regular expressions would be a useful and reasonable
thing and I would
not object to making it a ⎕-function. I can provide the framework
for the ⎕-part of
it (class definition, parser etc) if somebody wants to fill in the
rest.
On 2016-06-21 23:30, Xiao-Yong Jin wrote:
Here is the dyalog ⎕R (replace), you can find ⎕S too. It’s a nice interface,
but not easy to remember everything.
http://help.dyalog.com/14.1/Content/Language/System%20Functions/r.htm
That's a *lot* more than what we need. I think.
But a good ending
Sure, that shouldn't be a problem at all.
Regards,
Elias
On 22 June 2016 at 11:10, Christian Robert
wrote:
> Oh yes, would be nice. (pcre would be as nice as regex, may be more)
>
> make it a ⎕regex or ⎕pcre so, no need to load a specific .so file or )lib
> to use it ;-)
>
> Ideal would be to b
Here is the dyalog ⎕R (replace), you can find ⎕S too. It’s a nice interface,
but not easy to remember everything.
http://help.dyalog.com/14.1/Content/Language/System%20Functions/r.htm
> On Jun 21, 2016, at 10:10 PM, Christian Robert
> wrote:
>
> Oh yes, would be nice. (pcre would be as nice a
Oh yes, would be nice. (pcre would be as nice as regex, may be more)
make it a ⎕regex or ⎕pcre so, no need to load a specific .so file or )lib to
use it ;-)
Ideal would be to be able to not only scan but be able to compile a pcre, find
patterns, search & replace ...
I am dreaming, but still a
Would anyone be interested if I actually implemented support regex by
calling into the C library?
I'm envisioning something like this:
* "^([a-z]+):([0-9]+)$" regex∆scan "foo:123"*
┏→━━┓
┃"foo" "123"┃
┗∊━━┛
Regards,
Elias
On 22 June 2016 at 10:35, Xiao-Yong Jin wrote:
> A
At some point I really wanted to implement the simplest editor, namely ed (it
would be much better than any APL system has offered), in APL, but I never
finished the regex part. Perhaps it would be a nice exercise for someone who’s
interested in learning APL to actually implement some of the mo
Well, that was not exactly what I was seeking (condense), but, that "toronto
toolkit"
looks like a very interesting piece of code/functions ...
deciphering/decoding/understanding each one should enlighten me on apl
operators/data and usage.
I will look at it.
thanks,
Xtian.
On 2016-06-21 14
Hi,
A more general purpose search&replace (some bug fixed), take (2), was "snr".
)sic
)erase replace
∇z←s replace p;fr;to;P;i;⎕io
⍝ -
→(2≤≡s)/ForEach
→(2≤⍴⍴s)/Matrix
→Vector
⍝ -
ForEach: z←{⍵ replace p}¨s ◊ →0
Matrix: z←⊃ {⍵ replace p}¨ ⊂[2]s ◊ →0
⍝ --
I think I wrote it right ...
"snr" == "Search'N Replace"
)save
2016-06-21 15:11:40 (GMT-4) CONTINUE
s
Ceci est du texte
s snr " " "."
.Ceci...est..du.texte
s snr " " " "
Ceci est du texte
s snr " " " "
Ceci estdu texte
Hi Xtian,
how about this:
s←"444This4is4atest44with4lot4of4blanksat4beginning4and444end44"
from←"444"
to←"5"
↑⍎')HOST echo "',s,'" | sed s/',from,'/',to,'/g'
5This4is4a54test44with544lot4of4blanks5
I have been thinking of writing a native integration of regex which can be
integrated in GNU APL.
I haven't needed to yet though.
Regards,
Elias
On 21 Jun 2016 22:24, "Louis Chretien" wrote:
> Looks like a job for regexp…
>
> Too bad APL doesn’t have one.
>
>
> > On Jun 20, 2016, at 23:12, Chri
Looks like a job for regexp…
Too bad APL doesn’t have one.
> On Jun 20, 2016, at 23:12, Christian Robert
> wrote:
>
> Hi, it's not a bug but a request for help,
>
>
> suppose
> s="^^^This^is^atest^^with^lot^of^blanksat^beginning^and^^^end^^"
> suppose from="^^^"
> suppose t
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