From @drforr

jgoff@​Demeisen​:~$ perl6 -v
This is Rakudo version 2015.12-152-gd7f3f0b built on MoarVM version
2015.12-29-g8079ca5
implementing Perl 6.c.

The following is a simple script that changes newlines to their control
picture equivalent, or at least it should​:

--cut here--
my $str = "foo\nbar";
$str ~~ s​:g/\n/\c[2424]/;
say $str;
--cut here--

And here's the output​:

--cut here--
jgoff@​Demeisen​:~$ perl6 -I. bug.txt | hexdump -C
00000000 66 6f 6f e0 a5 b8 62 61 72 0a |foo...bar.|
0000000a
--cut here--

The s/// statement turns newlines into E0 A5 B8, which is U+0978
DEVANAGARI LETTER MARWARI DDA and not E2 90 A4, which is U+2424 SYMBOL
FOR NEWLINE. The 0A at the end of the string is unaffected, as it should
be.

From @drforr

Please close this, I was being an idiot. \c[0x2424] - I just blithely
assumed that the number was as in \x{..}.

On 2016-01-09 10​:33, perl6 via RT wrote​:

Greetings,

This message has been automatically generated in response to the
creation of a trouble ticket regarding​:
"Potential regular expression issue",
a summary of which appears below.

There is no need to reply to this message right now. Your ticket has
been
assigned an ID of [perl #​127220].

Please include the string​:

     \[perl #​127220\]

in the subject line of all future correspondence about this issue. To
do so,
you may reply to this message.

                    Thank you,
                    perl6\-bugs\-followup@​perl\.org

-------------------------------------------------------------------------
jgoff@​Demeisen​:~$ perl6 -v
This is Rakudo version 2015.12-152-gd7f3f0b built on MoarVM version
2015.12-29-g8079ca5
implementing Perl 6.c.

The following is a simple script that changes newlines to their control
picture equivalent, or at least it should​:

--cut here--
my $str = "foo\nbar";
$str ~~ s​:g/\n/\c[2424]/;
say $str;
--cut here--

And here's the output​:

--cut here--
jgoff@​Demeisen​:~$ perl6 -I. bug.txt | hexdump -C
00000000 66 6f 6f e0 a5 b8 62 61 72 0a
|foo...bar.|
0000000a
--cut here--

The s/// statement turns newlines into E0 A5 B8, which is U+0978
DEVANAGARI LETTER MARWARI DDA and not E2 90 A4, which is U+2424 SYMBOL
FOR NEWLINE. The 0A at the end of the string is unaffected, as it
should
be.

From @lizmat

On 09 Jan 2016, at 10​:33, (via RT) <perl6-bugs-followup@​perl.org> wrote​:

# New Ticket Created by
# Please include the string​: [perl #​127220]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=127220 >

jgoff@​Demeisen​:~$ perl6 -v
This is Rakudo version 2015.12-152-gd7f3f0b built on MoarVM version
2015.12-29-g8079ca5
implementing Perl 6.c.

The following is a simple script that changes newlines to their control
picture equivalent, or at least it should​:

--cut here--
my $str = "foo\nbar";
$str ~~ s​:g/\n/\c[2424]/;
say $str;
--cut here--

And here's the output​:

--cut here--
jgoff@​Demeisen​:~$ perl6 -I. bug.txt | hexdump -C
00000000 66 6f 6f e0 a5 b8 62 61 72 0a |foo...bar.|
0000000a
--cut here--

The s/// statement turns newlines into E0 A5 B8, which is U+0978
DEVANAGARI LETTER MARWARI DDA and not E2 90 A4, which is U+2424 SYMBOL
FOR NEWLINE. The 0A at the end of the string is unaffected, as it should
be.

\c[] interpretes codepoint values in decimal, not hexadecimal. If you use the correct decimal value​:

$ 6 'say "\x2424".ord’
9252

you get​:

$ 6 'my $a = "aa\nbb"; $a ~~ s​:g/\n/\c[9252]/; say $a'
aa␤bb

In my opinion, ENOTABUG and can therefore can be closed.

The RT System itself - Status changed from 'new' to 'open'

From @drforr

On 2016-01-09 12​:19, Elizabeth Mattijsen via RT wrote​:

On 09 Jan 2016, at 10​:33, (via RT) <perl6-bugs-followup@​perl.org>
wrote​:

Yeah, about as soon as I sent it in I realized what I'd done wrong.
Expectations from P5 getting in the way.

# New Ticket Created by
# Please include the string​: [perl #​127220]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=127220 >

jgoff@​Demeisen​:~$ perl6 -v
This is Rakudo version 2015.12-152-gd7f3f0b built on MoarVM version
2015.12-29-g8079ca5
implementing Perl 6.c.

The following is a simple script that changes newlines to their
control
picture equivalent, or at least it should​:

--cut here--
my $str = "foo\nbar";
$str ~~ s​:g/\n/\c[2424]/;
say $str;
--cut here--

And here's the output​:

--cut here--
jgoff@​Demeisen​:~$ perl6 -I. bug.txt | hexdump -C
00000000 66 6f 6f e0 a5 b8 62 61 72 0a
|foo...bar.|
0000000a
--cut here--

The s/// statement turns newlines into E0 A5 B8, which is U+0978
DEVANAGARI LETTER MARWARI DDA and not E2 90 A4, which is U+2424 SYMBOL
FOR NEWLINE. The 0A at the end of the string is unaffected, as it
should
be.

\c[] interpretes codepoint values in decimal, not hexadecimal. If you
use the correct decimal value​:

$ 6 'say "\x2424".ord’
9252

you get​:

$ 6 'my $a = "aa\nbb"; $a ~~ s​:g/\n/\c[9252]/; say $a'
aa␤bb

In my opinion, ENOTABUG and can therefore can be closed.

From @usev6

As requested, I'm closing this ticket.

@usev6 - Status changed from 'open' to 'rejected'