Public bug reported: So I first reported this as a bug to `coreutils`, which closed the issue as the underlying reason lies in libc (*). Still, for the reproduction case I will still use `printf` from coreutils, as that uses `printf()` from libc internally.
As can be seen below, the width specifier for numeric parameters does some weird calculations when the specified locale is `nb_NO.utf8`. For instance, the number formatting rules for US and NO locales both result in the same number of characters (with ' ' instead of ','), but the Norwegian version lacks two spaces in the padded output: $ LC_NUMERIC=en_US.utf8 printf "%s%'7d%s\n" XXX 1234 XXX XXX 1,234XXX $ LC_NUMERIC=nb_NO.utf8 printf "%s%'7d%s\n" XXX 1234 XXX XXX1 234XXX According to Pádraig Brady "The particular issue is the grouping char used in the nb_NO.utf8 locale is multi-byte. Specifically: e2 80 af. So that character counts as 3 bytes, and the printf implementation is counting bytes, not characters, or display cells. Given the usual consideration is display width, it probably should be considering display cells, but that's an issue for libc, not coreutils." Filing this here in the hopes that it will be pushed upstream at some point. * see https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50336 for details ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: libc6-dev 2.34-0ubuntu3.2 ProcVersionSignature: Ubuntu 5.13.0-35.40-generic 5.13.19 Uname: Linux 5.13.0-35-generic x86_64 ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Mar 23 12:45:17 2022 InstallationDate: Installed on 2021-08-26 (208 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) RebootRequiredPkgs: Error: path contained symlinks. SourcePackage: glibc UpgradeStatus: Upgraded to impish on 2022-02-08 (42 days ago) ** Affects: glibc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug impish wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1966064 Title: libc does not handle multi-byte grouping chars To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1966064/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
