Combining chars look forward now? This breaks *my* expectations. On Wed, Jul 26, 2017 at 6:36 AM, Aleks-Daniel Jakimenko-Aleksejev < perl6-bugs-follo...@perl.org> wrote:
> # New Ticket Created by Aleks-Daniel Jakimenko-Aleksejev > # Please include the string: [perl #131801] > # in the subject line of all future correspondence about this issue. > # <URL: https://rt.perl.org/Ticket/Display.html?id=131801 > > > > Code: > say (“\c[COMBINING OVERLINE]a” x 2).chars > > Result: > 4 > > > Code: > say (“\c[COMBINING OVERLINE]a” ~ “\c[COMBINING OVERLINE]a”).chars > > Result: > 3 > > > > Both should produce the same result (3). What happens here is “a” on one > side is not being squished into one grapheme with a combiner on another > side. > > Please note that combiners are not the only thing can cause this. Here is > the same thing with ZWJ: > > Code: > my $x = “\x[2695]\x[FE0F]a\x[1F468]\x[200D]”; > say ($x ~ $x).chars; > say ($x x 2).chars > > > Result: > 5 > 6 > > > > > I have a feeling that this is a known issue, and that there might be a > ticket for this already. However, I couldn't find it. > -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
