t; Hi All,
>
> When reading a text file
> https://docs.perl6.org/routine/lines
> seems pretty straight forward.
>
> Question: How do I tell when I when I have
> reached the EOF (End Of File)?
>
> Many thanks,
&
0/9/18 1:02 AM, ToddAndMargo via perl6-users wrote:
> > Hi All,
> >
> > When reading a text file
> > https://docs.perl6.org/routine/lines
> > seems pretty straight forward.
> >
> > Question: How
iterates the Seq, printing all the
lines.
The second call to .lines() returns nothing because you're now at eof,
no more lines.
Note the Seq that .lines returns itself is lazy. It doesn't
(necessarily) have all the lines, just the capability to get them.
As you iterate the Seq, it pulls in all t
text file
> > > https://docs.perl6.org/routine/lines
> > > seems pretty straight forward.
> > >
> > > Question: How do I tell when I when I have
> > > reached the EOF (End Of File)?
> > >
> > > Many t
On Tue, Oct 9, 2018 at 8:31 AM Curt Tilmes wrote:
>
> On Tue, Oct 9, 2018 at 9:27 AM Laurent Rosenfeld via perl6-users
> wrote:
>>
>> This:
>> my $f = $fh.lines;
>> will slurp all the lines into $f (but you can still access the individual
>> items with something like $f[4]).
>
>
> Is that
Yes, you're right, it is a Seq. I was trying to be pedagogical, but
probably wasn't very accurate. It is a Seq, and the "slurping" will be lazy.
Le mar. 9 oct. 2018 à 15:30, Curt Tilmes a écrit :
> On Tue, Oct 9, 2018 at 9:27 AM Laurent Rosenfeld via perl6-users <
> perl6-users@perl.org>
On Tue, Oct 9, 2018 at 9:27 AM Laurent Rosenfeld via perl6-users <
perl6-users@perl.org> wrote:
> This:
> my $f = $fh.lines;
> will slurp all the lines into $f (but you can still access the individual
> items with something like $f[4]).
>
Is that true? I supposed that it would hold the Seq as a
ddAndMargo via perl6-users wrote:
> > > Hi All,
> > >
> > > When reading a text file
> > > https://docs.perl6.org/routine/lines
> > > seems pretty straight forward.
> > >
> > > Question: How do I tell when
es.
The second call to .lines() returns nothing because you're now at eof, no
more lines.
Note the Seq that .lines returns itself is lazy. It doesn't (necessarily)
have all the lines, just the capability to get them.
As you iterate the Seq, it pulls in all the lines.
Curt
t; Hi All,
>
> When reading a text file
> https://docs.perl6.org/routine/lines
> seems pretty straight forward.
>
> Question: How do I tell when I when I have
> reached the EOF (End Of File)?
>
> Many thanks,
> -T
Plea
https://docs.perl6.org/routine/lines
> > seems pretty straight forward.
> >
> > Question: How do I tell when I when I have
> > reached the EOF (End Of File)?
> >
> > Many thanks,
> > -T
>
> Please expand the question to include `read` and `readchars`.
>
--
Fernando Santagata
The eof method of the IO::Handle class returns True if you exhausted the
contents of the handle, but you generally don't need to use that, since
something like:
for 'input.txt'.IO.lines -> $line {
# Do something with $line
}
will gracefully handle ends of files for you without you hav
On 10/9/18 1:02 AM, ToddAndMargo via perl6-users wrote:
Hi All,
When reading a text file
https://docs.perl6.org/routine/lines
seems pretty straight forward.
Question: How do I tell when I when I have
reached the EOF (End Of File)?
Many thanks,
-T
Please expand the question to include
Hi All,
When reading a text file
https://docs.perl6.org/routine/lines
seems pretty straight forward.
Question: How do I tell when I when I have
reached the EOF (End Of File)?
Many thanks,
-T
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