> "note" is the same thing as "say", but to the std error:
Er, I was referring more to the P5 behaviour of warn() - w/o a newline, its
output, to stderr, included more info:
$ perl -e 'warn("hi mom")' > /dev/null
hi mom at -e line 1.
$ perl -e 'warn("hi mom\n")' > /dev/null
hi mom
"note" appears to append a new line and p6 warn appears to always add the
extra info. Looking at
https://docs.perl6.org/routine/warn
I see warn is doing even more that.
Thanks.
On Fri, Sep 15, 2017 at 3:58 PM, ToddAndMargo <[email protected]> wrote:
> On 09/15/2017 01:48 PM, Andy Bach wrote:
>
>> So "note"
>> $ perl6 -e 'note "hi mom"' > /dev/null
>> hi mom
>>
>> replaces "warn ...\n" or
>>
>> $ perl6 -e 'warn "hi mom\n"' > /dev/null
>> hi mom
>>
>> in block <unit> at -e line 1
>>
>> have I forgotten my p6 newline syntax (again)?
>>
>
>
> Hi Andy,
>
> Oh goody. I get to help someone for once!
>
> "note" is the same thing as "say", but to the std error:
>
> $ perl6 -e '$*ERR.say: "print to std err";'
> print to std err
>
> $ perl6 -e 'note "print to std err";'
> print to std err
>
> $ perl6 -e 'note "print to std err";' > /dev/null
> print to std err
>
> $ perl6 -e 'note "print ", "to ", "std err";' > /dev/null 2>&1
> <nothing>
>
> "2>&1" redirects STDERR to STDOUT. And, you put it "after"
> the "/dev/null". It is a "bash" thing.
>
>
> > have I forgotten my p6 newline syntax (again)?
>
> "\n". It means new line. Perl takes care of whether or
> not that is a CR-LF or a LF depending on the OS involved.
>
> example:
> $ perl6 -e '$*ERR.print: "print to std err\n";'
> print to std err
>
>
> -T
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Serious error.
> All shortcuts have disappeared.
> Screen. Mind. Both are blank.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
--
a
Andy Bach,
[email protected]
608 658-1890 cell
608 261-5738 wk
