I opened a Raku ticket https://github.com/rakudo/rakudo/issues/3839
-y
On Sun, Aug 2, 2020 at 5:42 PM Eirik Berg Hanssen <
eirik-berg.hans...@allverden.no> wrote:
> On Sun, Aug 2, 2020 at 11:14 PM yary wrote:
>
>> Issue golf, ff is always evaluating its RHS
>>
>> $ raku -e 'say "With ff: ";say
On Sun, Aug 2, 2020 at 11:14 PM yary wrote:
> Issue golf, ff is always evaluating its RHS
>
> $ raku -e 'say "With ff: ";say ( 1..5 ).grep({False ff .say}); say "With
> fff: ";say ( 1..5 ).grep({False fff .say});'
> With ff:
> 1
> 2
> 3
> 4
> 5
> ()
> With fff:
> ()
>
I haven't looked much at
Issue golf, ff is always evaluating its RHS
$ raku -e 'say "With ff: ";say ( 1..5 ).grep({False ff .say}); say "With
fff: ";say ( 1..5 ).grep({False fff .say});'
With ff:
1
2
3
4
5
()
With fff:
()
-y
On Sun, Aug 2, 2020 at 2:16 PM yary wrote:
> tl;dr: is this a Rakudo issue?
>
> ooh a
tl;dr: is this a Rakudo issue?
ooh a puzzle why do 'ff' and 'fff' give different results in this case?
The start & end are disjoint, the $++ should only run when the string test
is true, so I expect 'ff' and 'fff' to behave the same also.
Golfing a little
$ raku -e 'my @input=qw; \
say "With
Hi Yary, Nice code!
The general approach of using an anonymous counter is useful to me. Below
are examples when I only want to recover the first one or two blocks of
text starting with "Start" and ending with "Mark" (nota bene: I took your
example text and deleted the blank lines):
user@book:~$
This made me want to try a contrived puzzle, use 'fff' to show things
between a "start" and 2nd "mark" line. That is, print any line below not
marked with "!" at the start
$ cat example.txt
!ignore me
Start
hi print me
yes!
Mark
still print me
Mark
!ignore this line
!this line too
Start
A regex doesn't have to match the entire string.
'abcd' ~~ / bc /
# ｢bc｣
A string has to match exactly with the smart-match. (`ff` and `fff` do
smart-match)
'abcd' ~~ 'bc' # False
'abcd' ~~ 'abcd' # True
A string inside of a regex only makes that a single atom, it does not make
Thank you, Brad and Larry, for explaining the "ff" and "fff" infix
operators in Raku to me!
I have to admit that I'm still fuzzy on the particulars between "ff"
and "fff", since I am not familiar with the sed function. I can
certainly understand how useful these functions could be to 'pull out
On Sat, Jul 25, 2020 at 04:32:02PM -0500, Brad Gilbert wrote:
: In the above two cases ff and fff would behave identically.
:
: The difference shines when the beginning marker can look like the end
: marker.
The way I think of it is this: You come to the end of "ff" sooner, so you
do the end
There's the ff operator and the fff operator.
The ff operator allows both endpoints to match at the same time.
The fff operator doesn't.
On Sat, Jul 25, 2020 at 3:16 PM William Michels via perl6-users <
perl6-users@perl.org> wrote:
> Hello,
>
> I'm trying to learn the "ff" (flipflop) infix
Hello,
I'm trying to learn the "ff" (flipflop) infix operator, generally
taking examples from the docs (below):
https://docs.raku.org/routine/ff
I tried adding in an "m:1st" adverb and an "m:2nd" adverb, but the
output isn't what I expect with the "m:2nd" adverb (examples #3 and
#5):
say "\n1.
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