[Bug localedata/20756] New: [PATCH] Use Unicode wise thousands separator

["sbrabec at suse dot cz" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=20756

            Bug ID: 20756
           Summary: [PATCH] Use Unicode wise thousands separator
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: localedata
          Assignee: unassigned at sourceware dot org
          Reporter: sbrabec at suse dot cz
                CC: libc-locales at sourceware dot org
  Target Milestone: ---

Created attachment 9605
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9605&action=edit
Proposed changes

Many languages use small gap as thousands separator.

Thousands separator should not be a plain space, but a narrow space. And
additionally, it is not allowed to wrap number in the middle when wrapping
line.

Locale data were created in a deep age of 8-bit encodings, so most of them use
space (incorrect: it allows word wrapping in the middle of the number), or NBSP
(better, but typographically incorrect: space between group is too wide).

Now unicode is widely supported, so we should leave legacy characters in favor
of correct UNICODE character.

UNICODE has a dedicated character for this purpose:

NNBSP
U+202F NARROW NO-BREAK SPACE: a narrow form of a no-break space, typically the
width of a thin space or a mid space

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