unofficial mirror of libc-alpha@sourceware.org
 help / color / mirror / Atom feed
* [PATCH v5 0/2] C.UTF-8
@ 2021-07-30  4:32 Carlos O'Donell via Libc-alpha
  2021-07-30  4:32 ` [PATCH v5 1/2] Add 'strcmp_collation' support for LC_COLLATE Carlos O'Donell via Libc-alpha
  2021-07-30  4:32 ` [PATCH v5 2/2] Add generic C.UTF-8 locale (Bug 17318) Carlos O'Donell via Libc-alpha
  0 siblings, 2 replies; 4+ messages in thread
From: Carlos O'Donell via Libc-alpha @ 2021-07-30  4:32 UTC (permalink / raw)
  To: libc-alpha

The following changes implement a minimally sized C.UTF-8.
First we implement the 'strcmp_collation' directive.
Then we implement C.UTF-8 with an LC_COLLATE that uses the
'strcmp_collation' directive to support using strcmp for
collation i.e. code point sorting. The final C.UTF-8 is
only ~396KiB with the largest ~346KiB in LC_CTYPE for all
of Unicode.

v5 fixes the regressions detected in Fedora Rawhide
here: https://bugzilla.redhat.com/show_bug.cgi?id=1986421,
but does so by generating identity tables for 
_NL_COLLATE_COLLSEQMB, and _NL_COLLATE_COLLSEQWC to provide
mappings for ASCII characters. This ensures that static
applications using the new C.UTF-8 have a functioning
fnmatch, regcomp, and regexec for ASCII ranges. This raises
the size of LC_COLLATE from 92 to 1406 bytes. Valgrind
reports no errors using the tables with C.UTF-8 under
tst-fnmatch.

The fixes that were in v4 for nrules == 0 will be included
in the next release of glibc, and when those are proven
correct they can be backported to provide dyanmic
or newly compiled static applications with the ability
to use all code points in ranges.

Carlos O'Donell (2):
  Add 'strcmp_collation' support for LC_COLLATE.
  Add generic C.UTF-8 locale (Bug 17318)

 iconv/Makefile                   |  22 +-
 iconv/tst-iconv9.c               |  87 +++++
 locale/C-collate-seq.c           |  97 ++++++
 locale/C-collate.c               |  78 +----
 locale/programs/ld-collate.c     |  38 ++-
 locale/programs/locfile-kw.gperf |   1 +
 locale/programs/locfile-kw.h     | 306 ++++++++---------
 locale/programs/locfile-token.h  |   1 +
 localedata/C.UTF-8.in            | 157 +++++++++
 localedata/Makefile              |   2 +
 localedata/SUPPORTED             |   1 +
 localedata/locales/C             | 194 +++++++++++
 posix/Makefile                   |  16 +-
 posix/bug-regex1.c               |  20 ++
 posix/bug-regex19.c              |  22 +-
 posix/bug-regex4.c               |  25 ++
 posix/bug-regex6.c               |   2 +-
 posix/transbug.c                 |  22 +-
 posix/tst-fnmatch.input          | 549 ++++++++++++++++++++++++++++++-
 posix/tst-regcomp-truncated.c    |   1 +
 posix/tst-regex.c                |  25 +-
 21 files changed, 1406 insertions(+), 260 deletions(-)
 create mode 100644 iconv/tst-iconv9.c
 create mode 100644 locale/C-collate-seq.c
 create mode 100644 localedata/C.UTF-8.in
 create mode 100644 localedata/locales/C

-- 
2.31.1


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-07-30  6:12 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-30  4:32 [PATCH v5 0/2] C.UTF-8 Carlos O'Donell via Libc-alpha
2021-07-30  4:32 ` [PATCH v5 1/2] Add 'strcmp_collation' support for LC_COLLATE Carlos O'Donell via Libc-alpha
2021-07-30  6:11   ` Florian Weimer via Libc-alpha
2021-07-30  4:32 ` [PATCH v5 2/2] Add generic C.UTF-8 locale (Bug 17318) Carlos O'Donell via Libc-alpha

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).