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[Perl/perl5] 0a8be8: perlapi: Rmv repeated word

From:
Karl Williamson via perl5-changes
Date:
May 5, 2021 00:51
Subject:
[Perl/perl5] 0a8be8: perlapi: Rmv repeated word
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/7b3464-105e95@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: 0a8be8e42c0f87e270bf0f6568ed48d6c7249d59
      https://github.com/Perl/perl5/commit/0a8be8e42c0f87e270bf0f6568ed48d6c7249d59
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  perlapi: Rmv repeated word


  Commit: 64ada265b6705cc88ed3ea5576e22823d5820170
      https://github.com/Perl/perl5/commit/64ada265b6705cc88ed3ea5576e22823d5820170
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M dosish.h
    M unixish.h

  Log Message:
  -----------
  XXX craig Unixish.h, doshish.h: Reorder terminations; simplify

The IO and memory terminations need to be after other things.  Add a
comment so that future maintainers won't make the mistakes I did.

Also refactor to that amiga os doesn't have a separate list to get out
of sync

I suspect that the amiga termination should be moved to earlier in
the sequence, but absent any evidence; I'm leaving it unchanged.


  Commit: 4a530037753ff5c230087bac31e84ba19fec84b6
      https://github.com/Perl/perl5/commit/4a530037753ff5c230087bac31e84ba19fec84b6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Win32: Don't check folds validity

This code will check, when warnings are on, that the libc functions
return valid values.  But Windows platforms will always fail because
they have multiple divergences from the Posix standard.  The macros that
implement the case changing/folding in handy.h take extra steps to bring
Windows code more into alignment with Posix.  Those are too complicated
to easily duplicate the logic here.  The result of these checks is
looked at by our test suite, which has long, without anyone noticing,
skipped portions on Windows, even though handy.h should correct for
this.  So simply, don't do the checking under Windows, and find out what
handy.h has failed to fully correct for.


  Commit: de04bf0dc7ca952f5e5b7389a6c0a940de28700d
      https://github.com/Perl/perl5/commit/de04bf0dc7ca952f5e5b7389a6c0a940de28700d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  DEBUG_L now also looks at environment variable

Because locale initialization happens before command line processing,
one can't pass a -DL argument to enable debugging of locale
initialization.  Instead, an environment variable is read then, and is
used to enable debugging or not.  In the past, code specifically had to
test for this being set.  This commit changes that so that debugging can
automatically be enabled without having to write special code.  Future
commits will strip out those special checks.


  Commit: 5f2f4d88fdec80d1e3d1a3a13ff2ca53f69eeda1
      https://github.com/Perl/perl5/commit/5f2f4d88fdec80d1e3d1a3a13ff2ca53f69eeda1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Replace most #ifdef DEBUGGING lines

THe previous commit enhanced the DEBUG macros so that they contain the
logic that previously had to be done with conditional compilation
statements.  Removing them makes the code easier to read.


  Commit: 4f518bf4cabd1d0808b4b8df8dcbb60ee9e70756
      https://github.com/Perl/perl5/commit/4f518bf4cabd1d0808b4b8df8dcbb60ee9e70756
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h
    M numeric.c
    M regcomp.c
    M regexec.c
    M utfebcdic.h

  Log Message:
  -----------
  Change handy.h macro names to be C standard conformant

C reserves symbols beginning with underscores for its own use.  This
commit moves the underscore so it is trailing, which is legal.  The
symbols changed here are most of the ones in handy.h that have few uses
outside it.


  Commit: f4567f75442c8a800901f1cf13b357d4c4635d29
      https://github.com/Perl/perl5/commit/f4567f75442c8a800901f1cf13b357d4c4635d29
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Remove only 2 calls to an internal macro

Replace isIDFIRST_LC and isWORD_CHAR_LC isIDFIRST_LC  with slightly
faster implementations.


  Commit: 7113743d890489fd2f4d176503e3eca0b12a0dab
      https://github.com/Perl/perl5/commit/7113743d890489fd2f4d176503e3eca0b12a0dab
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Refactor some #ifdef's for commonality

This changes these compilation conditionals so that things in common
between Windows and other platforms are only defined once.

It changes the isIDFIRST_LC and isWORDCHAR_LC definitions for
non-Windows to match that platform superficially, though expanding to
what it previously did to.


  Commit: 03dd8c638698b460a32c0f4d8046747ee6227b8f
      https://github.com/Perl/perl5/commit/03dd8c638698b460a32c0f4d8046747ee6227b8f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add some branch predictions


  Commit: be1a4496fff2b1f4a0425dfb75b6358c82208566
      https://github.com/Perl/perl5/commit/be1a4496fff2b1f4a0425dfb75b6358c82208566
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: White-space, comment only


  Commit: 9ae31be4442e583ed7d02c92c1b9a4cffc6a63e8
      https://github.com/Perl/perl5/commit/9ae31be4442e583ed7d02c92c1b9a4cffc6a63e8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Don't use char class if no LC_CTYPE

It is possible to compile perl to not pay attention to LC_CTYPE.  This
was testing for no locales at all; whereas the stricter requirement
should be used.


  Commit: 5f2ff8b145cafc612f40dcba2d2311645ae9b101
      https://github.com/Perl/perl5/commit/5f2ff8b145cafc612f40dcba2d2311645ae9b101
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M charclass_invlists.h
    M handy.h
    M l1_char_class_tab.h
    M lib/unicore/uni_keywords.pl
    M perl.c
    M perl.h
    M regcomp.c
    M regcomp.h
    M regen/mk_PL_charclass.pl
    M regexec.c
    M sv.c
    M uni_keywords.h
    M utfebcdic.h

  Log Message:
  -----------
  Change handy.h macro names to be C standard conformant

C reserves symbols beginning with underscores for its own use.  This
commit moves the underscore so it is trailing, which is legal.  The
symbols changed here are many of the ones in handy.h that have
significant uses outside it.


  Commit: 3e8163bcbe12a01f8ac0203fb013b395d76f4611
      https://github.com/Perl/perl5/commit/3e8163bcbe12a01f8ac0203fb013b395d76f4611
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv internal macro

LC_CAST_ was my attempt at generality, but I didn't realize that the
POSIX standard specifies the type that this was meant to generalize, so
there isn't any need for it.


  Commit: fb6e529b02bfc56ed951c082dfc2a465e46985bf
      https://github.com/Perl/perl5/commit/fb6e529b02bfc56ed951c082dfc2a465e46985bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Refactor some internal macros

This changes the parameters etc, in preparation for further changes


  Commit: 35b5d506dcfb24bfc46e7da468f837597ba6ca39
      https://github.com/Perl/perl5/commit/35b5d506dcfb24bfc46e7da468f837597ba6ca39
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv unnecessary parameter to internal macros

The cast is required to be U8 by the POSIX standard.  There is no need
to have this added generality.


  Commit: ca3cef8832dc210ca49d585cf74b2eb9fedf9126
      https://github.com/Perl/perl5/commit/ca3cef8832dc210ca49d585cf74b2eb9fedf9126
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: #define one macro in terms of another

These two macros are equivalent as folding and lowercasing are the same
for this input domain.  Better to say so rather than to replicate the
definitions.


  Commit: 3ecf03a2e8038c1ffbca57ca7dbeecb6cd545a33
      https://github.com/Perl/perl5/commit/3ecf03a2e8038c1ffbca57ca7dbeecb6cd545a33
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  No locales => don't use isspace(), toLower() etc.

This commit changes what happens on platforms without locale handling to
use our precomputed definitions of what the various character class
definitions and case changing operations are.  Previously, it just
called the libc locale-dependent functions and made sure the result was
ASCII.  I think this is a holdover from before we had the precomputed
definitions


  Commit: dbee07c3e4683059b5a5d285a9c1e292c8f43d47
      https://github.com/Perl/perl5/commit/dbee07c3e4683059b5a5d285a9c1e292c8f43d47
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Collapse two sets of macros

By redefining a wrapper macro used in one set based on compile-time
info; the other set can be defined in terms of it, and the separate
entries removed.


  Commit: 68e561da9ee315fe588514ee68fa1c68e55ff712
      https://github.com/Perl/perl5/commit/68e561da9ee315fe588514ee68fa1c68e55ff712
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Move some macro defns around

This is to make the difference listing in future commits smaller.

This change includes some comment changes, and some extra parens around
some subexpressions


  Commit: ef4975e7b870ed9cbe3579d4ae298d4b91cc2b4a
      https://github.com/Perl/perl5/commit/ef4975e7b870ed9cbe3579d4ae298d4b91cc2b4a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Collapse some macros

These 3 sets of macros can be collapsed trivially into 3 macros.


  Commit: f3b64ef0c27b185015755de4f079504e8575b5a8
      https://github.com/Perl/perl5/commit/f3b64ef0c27b185015755de4f079504e8575b5a8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add wrapper layer macros for isalnum() ...

This adds a new set of macros, forming a lower layer to what is currently
there to wrap the character classification libc functions, isdigit()
etc, and case changing ones, tolower(), toupper().

On most platforms these expand simply to the libc function call.  But on
windows, they expand to something more complex, to bring the Windows
calls into POSIX compliance.  Previously that was achieved at the higher
level, with the result that lower level calls were broken.  This
resulted in parts of the test suite being skipped on Windows.

The current level is rewritten to use the new lower layer, with the
result that it is simpler, as the complexity is now done further down.

I thought about calling these macros is_porcelain_isalnum or something
similar to emphaisze that they are close to the bare libc version, but
thought isU8_alnum() is shorter and conveys another truth, that being
the input is assumed to be a byte, without checking.


  Commit: 35dc2ba41e07d48bb98ffe3e359abafbcffad45b
      https://github.com/Perl/perl5/commit/35dc2ba41e07d48bb98ffe3e359abafbcffad45b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M vms/vms.c

  Log Message:
  -----------
  locale.c: Use new macros from the prev commit

This should result in Windows boxes now passing the locale sanity
checks.  Previously that failure would cause the test suite tests to be
skipped, and warnings generated to Windows users that actually were
invalid, as the flaws were actually compensated for in other code.


  Commit: 09961b83337e545057aa642255c9caa648972783
      https://github.com/Perl/perl5/commit/09961b83337e545057aa642255c9caa648972783
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  XXX SEE IF WORKS handy.h: Change Windows macros


  Commit: 59ca89da905d283df725ce19d2b759e52929b641
      https://github.com/Perl/perl5/commit/59ca89da905d283df725ce19d2b759e52929b641
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add isCASED_LC

As a convenience to other code.


  Commit: 26538c4804101e05da84bbab05f723907e28fbf3
      https://github.com/Perl/perl5/commit/26538c4804101e05da84bbab05f723907e28fbf3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M regexec.c

  Log Message:
  -----------
  regexec.c: Improve code

These case statements in a switch all had the same prelude for checking
if the locale is UTF-8 and handling that case separately.  A few commits
ago created macros closer to the base level.  This commit factors out
the common UTF-8 handling, and then puts the lower lever things in the
switch().  Perhaps the C optimizer will be smart enough to do this too,
but we might as well do it ourselves, now that it is convenient.


  Commit: 9221e5738662dbc764f9a0ec04beb04c73c3adf9
      https://github.com/Perl/perl5/commit/9221e5738662dbc764f9a0ec04beb04c73c3adf9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M regexec.c

  Log Message:
  -----------
  regexec.c: Refactor switch default()

It seems clearer to me to have the panic at the end of the routine
instead of as the default: of a switch().


  Commit: 9382af9617ad7c7c02ea6839d49ea61fcd957395
      https://github.com/Perl/perl5/commit/9382af9617ad7c7c02ea6839d49ea61fcd957395
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Declare three static arrays to be so.


  Commit: 2e849189f544bb2f1908b48ba9320064012cde95
      https://github.com/Perl/perl5/commit/2e849189f544bb2f1908b48ba9320064012cde95
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Move some locale.c #defines to perl.h

This is in preparation for them to be used in macros from outside
locale.c


  Commit: 83253a667e75efd78f6b2a954a70be4e6d0f0068
      https://github.com/Perl/perl5/commit/83253a667e75efd78f6b2a954a70be4e6d0f0068
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Mark newly moved symbols as private

The previous commit made certain symbols that previously were local to
locale.c now available everywhere.  Add a trailing underscore to their
names to mark them as private.


  Commit: 0f02e8eb57143f6f7dea82ed868835a72a8f45c5
      https://github.com/Perl/perl5/commit/0f02e8eb57143f6f7dea82ed868835a72a8f45c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M makedef.pl
    M perl.h

  Log Message:
  -----------
  Add USE_LOCALE_THREADS #define

This is in preparation for supporting configurations where there threads
are available, but the locale handling code should ignore that fact.

This stems from the unusual locale handling of z/OS, where any attempt
is ignored to change locales after the first thread is created.


  Commit: ef21938d1687244bf78c7ab1e1a7b3c09dce5f59
      https://github.com/Perl/perl5/commit/ef21938d1687244bf78c7ab1e1a7b3c09dce5f59
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M ext/POSIX/lib/POSIX.pm
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M sv.c

  Log Message:
  -----------
  Regularize HAS_POSIX_2008_LOCALE, USE_POSIX_2008_LOCALE

A platform shouldn't be required to use the Posix 2008 locale handling
functions if they are present.  Perhaps they are buggy.  So, a separate
define for using them was introduced, USE_POSIX_2008_LOCALE.  But until
this commit there were cases that were looking at the underlying
availability of the functions, not if the Configuration called for their
use.


  Commit: c67192b57101c681cb1c4c0b25345fd68a36a314
      https://github.com/Perl/perl5/commit/c67192b57101c681cb1c4c0b25345fd68a36a314
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change macro name

Adopt the git convention of 'porcelain' meaning without special
handling.  This makes it clear that porcelain_setlocale() is the base
level.


  Commit: ea90859c4c23e9f80e3d0ed55d0fb799e1d58d41
      https://github.com/Perl/perl5/commit/ea90859c4c23e9f80e3d0ed55d0fb799e1d58d41
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Cast return of setlocale() to const

If they had it to do over again, the libc makers would have made the
return of this function 'const char *'.  We can cast it that way
internally to catch erroneous uses at compile time.


  Commit: 9ff951384432e6d3cc7a56e46358c02683ec070a
      https://github.com/Perl/perl5/commit/9ff951384432e6d3cc7a56e46358c02683ec070a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Create S_get_category_index()

libc locale categories, like LC_NUMERIC, are opaque integers.  This
makes it inconvenient to have table-driven code.  Instead, we have
tables that are indexed by small positive integers, which are a
compile-time mapping from the libc values.

This commit creates a run-time function to also do that mapping.  It
will first be used in the next commit.

The function does a loop through the available categories, looking for a
match.  It could be replaced by some sort of quick hash lookup, but the
largest arrays in the field have a max of 12 elements, with almost all
searches finding their quarry in the first 6.  It doesn't seem
worthwhile to me to replace a linear search of 6 elements by something
more complicated.  The design intent is this search will be used only at
the edges of the locale-handling code; once found the index is used in
future bits of the current operation.


  Commit: 2b448380d65f9edbcb7d5b042acea47e5e376dcb
      https://github.com/Perl/perl5/commit/2b448380d65f9edbcb7d5b042acea47e5e376dcb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Use get_category_index()

This creates the first uses of the function added in the previous commit.

It changes the name of a function that now takes an index to have the
suffix _i to indicate its calling parameter is a category index rather
than a category.  This will become a common paradigm in this file in
later commits.

Two macros are also created to call that function; they have suffixes _c
(to indicate the parameter is a category known at compile time, and _r
(to indicate it needs to be computed at runtime).  This is in keeping
with the already existing paradigm in this file.


  Commit: d52faea2794ddb25c5254c7414ab36cf0393c369
      https://github.com/Perl/perl5/commit/d52faea2794ddb25c5254c7414ab36cf0393c369
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Change S_emulate_setlocale name and sig

It turns out this function is called only from places where we have the
category index already computed; so change the signature to use the
index and remove the re-calculation.

It renames it to emulate_setlocale_i() to indicate that the category
parameter is an index.

This also means, that it's very unlikely that it will be called with an
out-of-bounds value.  Remove the debugging statement for that case (but
retain the error return value).


  Commit: 7c72e11efa46ddfcdc8549c1589966e231a7c622
      https://github.com/Perl/perl5/commit/7c72e11efa46ddfcdc8549c1589966e231a7c622
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M pod/perldelta.pod
    M pod/perldiag.pod

  Log Message:
  -----------
  locale.c: Simplify S_category_name

We can use the new function S_get_category_index() to simplify this.
Also, when I wrote it I didn't know about Perl_form(), and had
reimplemented a portion of it here; which is yanked as well.


  Commit: b83e638f4c0c38431654b0ae1926e823f092b7c8
      https://github.com/Perl/perl5/commit/b83e638f4c0c38431654b0ae1926e823f092b7c8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move unreachable code

It turns out this code, setting errno, is unreachable.  Move it to the
place where it would do some good, removing an extraneous, unreachable
return;


  Commit: c1800d154408acd200f011487413f66258343a8a
      https://github.com/Perl/perl5/commit/c1800d154408acd200f011487413f66258343a8a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Comment clarifications, white space

Some of these are to make future difference listings shorter

Some of the changes look like incorrect indentation here, but anticipate
future commits.


  Commit: 10d41257b56632d15c9caf3144c445607efb6935
      https://github.com/Perl/perl5/commit/10d41257b56632d15c9caf3144c445607efb6935
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move fcn within file

This is for later commits which will change it to rely on new defines
that won't occur until later in the file than its current position


  Commit: a09c45d06c0b6b34048b5f7b240257cd9a20520d
      https://github.com/Perl/perl5/commit/a09c45d06c0b6b34048b5f7b240257cd9a20520d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Separate query part of emulate_setlocale()

This splits a large function so that it is easier to comprehend, and is
in preparation for them to be separately callable.


  Commit: e5eb0b086232cde47a9e5b2c28f6bee5b470bef0
      https://github.com/Perl/perl5/commit/e5eb0b086232cde47a9e5b2c28f6bee5b470bef0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Outdent previous commit

The previous commit kept the indentation level the same as it moved code
to a new function, even though an outer block was stripped off in the
process.  This was to minimize diff output.  This commit is white space
only.


  Commit: 3c3af698540a91dbb37244a47e621ebe68e2274d
      https://github.com/Perl/perl5/commit/3c3af698540a91dbb37244a47e621ebe68e2274d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Remove spaces around a '##' preprocessor directive

It turns out that at least my gcc preprocessor gets confused in some
contexts if spaces surround the ##.  CAT2() doesn't work for these.

It is working in this context, but future commits will introduce ones
where it won't, so this commit will help make things consistent within
this file

What seems to fail is #define f(x) (..., g(x ## y), ...) where 'x' is a
an already #defined symbol.  I want 'xy', but instead, for example if
'x' has been defined to be 1, I get '1y'


  Commit: eed61367d84b33b99807f705e1628e08ab84dafb
      https://github.com/Perl/perl5/commit/eed61367d84b33b99807f705e1628e08ab84dafb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: #define some macros in terms of a base one

This is so changes to the lowest level automatically propagate to the
others


  Commit: 1fd4b1d57b35d1afbd9ac4e7d78fbcb2d80b2a40
      https://github.com/Perl/perl5/commit/1fd4b1d57b35d1afbd9ac4e7d78fbcb2d80b2a40
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Create new macros for just querying locale

There are two sets of names, which immediately indicate if the result
can be relied on to be thread level or must be assumed to be global to
the whole process.  At the moment they all expand to the same thing,
since on a threadless perl, it's a don't care; and on a threaded perl,
they are all already thread-level, in the Configurations we support.

Future commits will cause the macros to diverge, and comments will be
added then.

For POSIX 2008, this commit causes queries to go directly to the query
function, avoiding S_emulate_setlocale_i() completely.


  Commit: 5a86da55835afd52212a47c01b89a101417b79de
      https://github.com/Perl/perl5/commit/5a86da55835afd52212a47c01b89a101417b79de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Generalize certain Win32 calls

The old versions were windows-specific; the changes use a more generic
macro that currently expands to the same thing, but future commits will
change that.


  Commit: c30c97ca727b8321c4b3d3b8b0732ae648a072ac
      https://github.com/Perl/perl5/commit/c30c97ca727b8321c4b3d3b8b0732ae648a072ac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add a convenience #define

This makes it clear if we are using an array that currently only happens
on non-querylocale systems, but that will change in future commits.


  Commit: 405d4d46a0080eaa3aa5e894d02b5e49ecdbac7d
      https://github.com/Perl/perl5/commit/405d4d46a0080eaa3aa5e894d02b5e49ecdbac7d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add setlocale() return context macros

Future commits will benefit from knowing if the return value of
setlocale is to be ignored, just checked for if it worked, or the full
value is needed and can be relied on (or not) to be per-thread.


  Commit: 826226229794b7e4429a5bba567c9b06e7bd6bfc
      https://github.com/Perl/perl5/commit/826226229794b7e4429a5bba567c9b06e7bd6bfc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add panic check/message

This panic is done when a setlocale unexpectedly fails.


  Commit: fdd02a06e3b3dd5c8db51289850a6aa22282606a
      https://github.com/Perl/perl5/commit/fdd02a06e3b3dd5c8db51289850a6aa22282606a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Use a function table to simplify code

Some locale categories require extra steps when they are changed.  This
moves that logic to a table, which gets rid of some code


  Commit: afebeadb33aa2dd44c0696918011a129105eef76
      https://github.com/Perl/perl5/commit/afebeadb33aa2dd44c0696918011a129105eef76
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Perl_setlocale(): Same code for all param2 == NULL

Calling Perl_setlocale() with a NULL 2nd parameter returns the current
locale, rather than changing it.  Previously LC_NUMERIC and LC_ALL were
treated specially; other categories were lumped in with the code that
changes the locale.

Changing some categories involves a non-trivial amount of work.  This
commit avoids that by moving all queries to the same 'if' branch.
LC_NUMERIC and LC_ALL still have to be treated specially, but now it's
all within the same outer 'if', and the unnecessarily executing code
for when the locale changes is avoided.


  Commit: 462c9d0d289188ea5aa2f5900031341ce16b62fd
      https://github.com/Perl/perl5/commit/462c9d0d289188ea5aa2f5900031341ce16b62fd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use low level macros at low level

Implementing Perl_setlocale, we can safely use the internal macros that
the public ones expand to call, without the overhead those public macros
impose (which they do to be more immune from improper calls from outside
code).


  Commit: 6f409c82e6fb057e72a29b72065febd2655d4224
      https://github.com/Perl/perl5/commit/6f409c82e6fb057e72a29b72065febd2655d4224
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Remove exploratory code

This code was to find out, in debugging builds, if an undocumented glibc
feature worked.  There were no reports that it didn't, and so, after,
several releases, it has served its purpose.  A future commit will allow
enabling this feature as a Configuration option.


  Commit: 6c42af298f985ed26b541ea465ea206d4b66382b
      https://github.com/Perl/perl5/commit/6c42af298f985ed26b541ea465ea206d4b66382b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Expand scope of cpp conditional

This just doesn't bother with checking some locale-related stuff if not
paying attention to locales.


  Commit: 81fb296ecee064998f4e660e12202e56ec00781d
      https://github.com/Perl/perl5/commit/81fb296ecee064998f4e660e12202e56ec00781d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  locale.c: Create new convenience macro

glibc doesn't have the querylocale() function, available on some other
platforms, such as Darwin and *BSD.  However, it instead has the
equivalent functionality available through an undocumented feature.

This commit allows someone in the know to compile perl to use that
feature, and wraps its API with a macro so that the calling code doesn't
have to be aware of the different APIs of the two methods.

That macro's definition is now done in perl.h, as future commits will
use it in other files.

Since this is an undocumented feature, I am not currently documenting
this wrapper availability.  However, it has been used in the field
without complaint for a couple of releases, as follows:  A more
cumbersome substitute method continues to be used to get what it does.
But in the past both methods were tried and the program died if they
yielded different results.  Since no one has complained, I'm fairly
confident it works.  But sill I'm deferring its more general use.


  Commit: bf8729840f323f703027e6ef6dad99f946cc0337
      https://github.com/Perl/perl5/commit/bf8729840f323f703027e6ef6dad99f946cc0337
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M intrpvar.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: querylocale() doesn't work on LC_ALL

I had misread the man pages.  This bug has been in the field for several
releases now, but most likely hasn't shown up because it's almost always
the case that the locale categories will be set to the same locale.  And
so most implementations of querylocale() would return the correct
result.

This commit works by splitting the calculation of the value of LC_ALL
from S_emulate_setlocale_i() into a separate function, and extending it
to work on querylocale() systems.  This has the added benefit of
removing tangential code from the main line, making
S_emulate_setlocale_i easier to read.

calculate_LC_ALL() is the new function, and is now called from two
places.  As part of this commit, constness is added to PL_curlocales[]

Part of this change is to keep our records of LC_ALL on non-querylocale
systems always up-to-date, which is better practice

And part of this change is temporary, marked as such, to be removed a
few commits later.


  Commit: e3ed09a8d2c51a5b9eb402257db05043e636a900
      https://github.com/Perl/perl5/commit/e3ed09a8d2c51a5b9eb402257db05043e636a900
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M intrpvar.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Make three locale PL_ strings const char*

This adds some compile safety to these.


  Commit: f5ce9a6e1c720a58bde042967f722c415591a9c5
      https://github.com/Perl/perl5/commit/f5ce9a6e1c720a58bde042967f722c415591a9c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c Make a char * variable const

A future commit will want this


  Commit: 5f5da17773b4bac5d476d1b4216ccc232facc09c
      https://github.com/Perl/perl5/commit/5f5da17773b4bac5d476d1b4216ccc232facc09c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M perl.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Generalize stdize_locale()

This function is rewritten to handle LC_ALL, and to make it easier to
add new checks.

There is also a change, which I think is an improvement, in that everything
starting with a \n is trimmed, instead of just a trailing \n being

A couple of calls to stdize_locale() are removed, as they are redundant,
because they are called only as a result of Perl_setlocale() being
called, and that ends up calling stdize_locale always, early on.

The call to savepv() is also moved in a couple cases to after the result
is known to not be NULL

I originally had such a new check in mind, but it turned out that doing
it here didn't solve the problem, so this commit has been amended
(before ever being pushed) to not include that.
chomped.


  Commit: 31a0e6fdd09eafc4531d329c77e5fdeb641b7e5c
      https://github.com/Perl/perl5/commit/31a0e6fdd09eafc4531d329c77e5fdeb641b7e5c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX drop stdize_locale: #if 0, enabled even for emulate


  Commit: f8b74de55e8de5f0cd06e19dae1bd7bec4196c51
      https://github.com/Perl/perl5/commit/f8b74de55e8de5f0cd06e19dae1bd7bec4196c51
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Refactor some derived #defines

The _c suffix is supposed to mean the category is known at compile time.
In some configurations this does not matter, and so I had named things
carelessly, so this might be confusing.  This commit fixes that.


  Commit: 6b0fdae1b42b9ff1f937a614dfa6698e133f2c1d
      https://github.com/Perl/perl5/commit/6b0fdae1b42b9ff1f937a614dfa6698e133f2c1d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use setlocale() for init, not P2008

We have found bugs in the POSIX 2008 libc implementations on various
platforms.  This code, which does the initialization of locale handling
has always been very conservative, expecting possible failures due to
bugs in it our the libc implementations, and backing out if necessary to
a crippled, but workable state, if something goes wrong.

I think we should use the oldest, most stable locale implementation in
these circumstances


  Commit: 9f57e1d5e91b9234a33b3db004cfd77434a36c3c
      https://github.com/Perl/perl5/commit/9f57e1d5e91b9234a33b3db004cfd77434a36c3c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Split aggregate LC_ALL from emulate_setlocale

This splits into a separate function the code necessary in some
Configurations to calculate LC_ALL from a potentially disparate
aggregate of categories having different locales.

This is being done just for readability, as this extensive code in the
middle of something else distracts from the main point.

A goto is hence replaced by a recursive call.


  Commit: 75a397f833af248667237fb131ff0b4cd19019fa
      https://github.com/Perl/perl5/commit/75a397f833af248667237fb131ff0b4cd19019fa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Change internal variable name

The new name better reflects its purpose, so is less confusing


  Commit: 387a2b338c95fef9cf1b075f1f0ca277d26f3e34
      https://github.com/Perl/perl5/commit/387a2b338c95fef9cf1b075f1f0ca277d26f3e34
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Clean up handling of a glibc bug

This commit moves all mention of this bug to just the code that requires
it, and inlines a macro, making it easier to comprehend


  Commit: 015787f3a3cba918eae05837093cb18e10907b07
      https://github.com/Perl/perl5/commit/015787f3a3cba918eae05837093cb18e10907b07
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Split ancillary from S_emulate_setlocale

This takes the code to update LC_ALL, used only in some Configurations,
out of the main line, making the main line more readable.

It also allows the removal of temporary code added a few commits back


  Commit: 54df4ad356b1cefc76abcc7f8f7a0c5de8de75d0
      https://github.com/Perl/perl5/commit/54df4ad356b1cefc76abcc7f8f7a0c5de8de75d0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: locale "" can be disparate

Setting a locale "" means to get the value from environment variables.
These can set locale categories to different locales, and this needs to
be handled.  The logic before this commit only handled the disparate
case when the locale wasn't ""; but this was compensated for elsewhere.
A future commit will remove that compensation.


  Commit: 9ad8d0592ba6437369ade3885071b4121fae03c9
      https://github.com/Perl/perl5/commit/9ad8d0592ba6437369ade3885071b4121fae03c9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Split off setting locale to "" from S_emulate_setlocale

This is done for readability, to move the special casing of setting a
locale to the empty string (hence getting it from the environment) out
of the main line code.


  Commit: 16f0bd145e4677bf407b9d0f6e8556c4136c7a40
      https://github.com/Perl/perl5/commit/16f0bd145e4677bf407b9d0f6e8556c4136c7a40
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Duplicate more variables during cloning

These locale-related ones should be getting initialized in the new
thread, but be certain.


  Commit: 75ab944c615debccec314063f0caac7d0cd1d4b0
      https://github.com/Perl/perl5/commit/75ab944c615debccec314063f0caac7d0cd1d4b0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Add fcn to hide edge case undefined behavior

The POSIX 2008 API has an edge case in that the result of most of the
functions when called with a global (as opposed to a per-thread) locale
is undefined.

The duplocale() function is the exception which will create a per-thread
locale containing the values copied from the global one.

This commit just calls duplocale, if needed, and the caller need not
concern itself with this possibility


  Commit: 1f82b1f29b141c46a2a790d3856c1136ac3ec1be
      https://github.com/Perl/perl5/commit/1f82b1f29b141c46a2a790d3856c1136ac3ec1be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add DEBUGGING information

These functions are called as expansions of macros.  It may be useful to
know where in the file the macro occurred.


  Commit: b85080ccf60c5d6bc5011f6ac4f72acaa43aafde
      https://github.com/Perl/perl5/commit/b85080ccf60c5d6bc5011f6ac4f72acaa43aafde
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Separate out two Win fcns from a larger one

This makes the larger one easier to understand, and prepares for
possible independent calls to the two, which are potentially useful on
their own.


  Commit: 0a0924e4c9785046959bf69e8eda286844357e5b
      https://github.com/Perl/perl5/commit/0a0924e4c9785046959bf69e8eda286844357e5b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  f XXX make fcns accessible to cygwin


  Commit: 39ec89f52a1c866358a29b4d5bdaa722e503981a
      https://github.com/Perl/perl5/commit/39ec89f52a1c866358a29b4d5bdaa722e503981a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs: Use macro to reduce complexity

This #defines a macro and uses it to populate a structure, so that
strings don't have to be typed twice.


  Commit: 6548a2407f9c1a9501bc44772647cf2c9b0c1a7e
      https://github.com/Perl/perl5/commit/6548a2407f9c1a9501bc44772647cf2c9b0c1a7e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs: White-space only

Properly indent some nested preprocessor directives


  Commit: 9d366344b3a9e314ecead061c70f1346efb4b540
      https://github.com/Perl/perl5/commit/9d366344b3a9e314ecead061c70f1346efb4b540
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  Move code from POSIX.xs to locale.c

This avoids duplicated logic.


  Commit: b8b4b72555c26f0da69fdb5ddc9aafcf6ed2b9db
      https://github.com/Perl/perl5/commit/b8b4b72555c26f0da69fdb5ddc9aafcf6ed2b9db
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder cases in a switch

This moves handling the CODESET to the end, as future commits will make
its handling more complicated.  The cases are now ordered so the
simplest (based on the direction of future commits) are first


  Commit: 7cf17f01a1acdde626566d9319532b9a125126f4
      https://github.com/Perl/perl5/commit/7cf17f01a1acdde626566d9319532b9a125126f4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Make statics of repeated string constants

These strings are (or soon will be) used in multiple places; so have
just one definition for them.


  Commit: d86f01fff9a0d3f8af5dd1eb151362178f4334c4
      https://github.com/Perl/perl5/commit/d86f01fff9a0d3f8af5dd1eb151362178f4334c4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add two #defines

This makes sure that we handle having any variant of nl_langinfo() or
localeconv().


  Commit: d430dfee7e145db534618e42c12b55e6ca91ba4e
      https://github.com/Perl/perl5/commit/d430dfee7e145db534618e42c12b55e6ca91ba4e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Return defaults for uncomputable langinfo items

Return the values from the C locale for nl_langinfo() items that aren't
computable on this platform.  If the platform has nl_langinfo(), then
all of them are computable, but if not, some can't be computed, and
others can be, but only if there are alternative methods available on
the platform.

As part of this commit, S_my_nl_langinfo() and S_save_to_buffer() are no
longer used when USE_LOCALE is not defined, so don't compile them.


  Commit: cfb6c364ca8f90bfe79644c74007c48411179e11
      https://github.com/Perl/perl5/commit/cfb6c364ca8f90bfe79644c74007c48411179e11
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv reimplementation of my_strftime()

Prior to this commit, there was a near duplicate copy of the code from
util.c that implements my_strftime().  This was done because the util.c
version zaps the wday field, which made it incompatible.

But it dawned on me that if the arbitrary date we use to do our
calculations were such that it was for a year in which January 1 falls
on a Sunday, then the util.c version automatically works.


  Commit: bf1a54f34a6d9debce87233eb4135270bd6566c7
      https://github.com/Perl/perl5/commit/bf1a54f34a6d9debce87233eb4135270bd6566c7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Shorten static function name

The extra syllable(s) are unnecessary noise


  Commit: de157afd2613f5a15fa4d9103b233f48b8067ee6
      https://github.com/Perl/perl5/commit/de157afd2613f5a15fa4d9103b233f48b8067ee6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Extend a static function

This will allow it to be used in situations where the buffer it controls
is single use, and we don't need to keep track of the size for future
calls.


  Commit: 0a7608de7edcb37a5d55603196637e6e582715c9
      https://github.com/Perl/perl5/commit/0a7608de7edcb37a5d55603196637e6e582715c9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use typedef to simplify

This allows some preprocessor conditionals to be removed


  Commit: 32874da8991020c5267e20500488eca26d7d9959
      https://github.com/Perl/perl5/commit/32874da8991020c5267e20500488eca26d7d9959
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv redundant cBOOL()

strEQ and && already return booleans


  Commit: 9a90c63f2f03798de18cb66c964550c7dcdbd1c9
      https://github.com/Perl/perl5/commit/9a90c63f2f03798de18cb66c964550c7dcdbd1c9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Fix currency symbol derivation

On platforms without nl_langinfo(), we derive the currency symbol from
localeconv().  The symbol must be tweaked to conform to nl_langinfo()
standards.  Prior to this commit, it guessed at how to tweak a rare
circumstance.  I found evidence this guess was wrong, so looked around,
and copied the way cygwin does it.

This also no longer returns just an empty string in certain cases.
nl_langinfo() itself doesn't, so conform to that.


  Commit: 611c7cc875024cef1db2d2aedee74a8521d4975a
      https://github.com/Perl/perl5/commit/611c7cc875024cef1db2d2aedee74a8521d4975a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't add CP to Windows code page names

The actual name appears to be just the number for purposes of
nl_langinfo()-ish things.


  Commit: c21127cd3afed15e9ee90ead82e94e586d451cf5
      https://github.com/Perl/perl5/commit/c21127cd3afed15e9ee90ead82e94e586d451cf5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Don't ask a static fcn to be inlined

It's too complicated to really be inlined, and the compiler can figure
things out itself given it is a static function


  Commit: a5e2bd2c290595e05171f222803cc4ad41e64333
      https://github.com/Perl/perl5/commit/a5e2bd2c290595e05171f222803cc4ad41e64333
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Rmv no longer used param from static fnc

Previous commits have gotten rid of this parameter to S_save_to_buffer


  Commit: 776d076f3a7f16e9b4c4c375caf601e6858b21fb
      https://github.com/Perl/perl5/commit/776d076f3a7f16e9b4c4c375caf601e6858b21fb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't change locale if already there

Changing the locale is cheap for some categories, but expensive for
others.  Changing LC_COLLATE is most expensive, requiring recalculation
of the collation transformation mapping.

This commit checks that we aren't already in the desired locale before
changing locales. and does nothing if no change is needed.


  Commit: 1a063e00be288f6fba38e1610cefd455ccb5a9d1
      https://github.com/Perl/perl5/commit/1a063e00be288f6fba38e1610cefd455ccb5a9d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use a scratch buf; instead of reusing old

This is in preparation for the next commit


  Commit: 48a042aa88822533a7e68e9970aa26ddf05d5593
      https://github.com/Perl/perl5/commit/48a042aa88822533a7e68e9970aa26ddf05d5593
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Make static fcn reentrant

This makes my_langinfo() reentrant by adding parameters specifying where
to store the result.

This prepares for future commits, and fixes some minor bugs for XS
writers, in that the claim was that the buffer in calling
Perl_langinfo() was safe from getting zapped until the next call to it
in the same thread.  It turns out there were cases where, because of
internal calls, the buffer did get zapped.


  Commit: cadd42ead2f3d0117834d5a5b7a64a7b550e06b3
      https://github.com/Perl/perl5/commit/cadd42ead2f3d0117834d5a5b7a64a7b550e06b3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: langinfo: Use Windows fcn to find CODESET

There is a Windows function, available for quite a long time, that will
return the current code page.  Use this for the nl_langinfo() CODESET,
as that libc function isn't implemented on Windows.


  Commit: df801554e41b73da47622967545f031936c7331c
      https://github.com/Perl/perl5/commit/df801554e41b73da47622967545f031936c7331c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add static fcn to analyze locale codeset

It determines if the name indicates it is UTF-8 or not.  There are
several variant spellings in use, and this hides that from the the
callers.

It won't be actually used until the next commit


  Commit: 335f8a6d8dd20f82cb5b194387975f5cab9b68d3
      https://github.com/Perl/perl5/commit/335f8a6d8dd20f82cb5b194387975f5cab9b68d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/I18N-Langinfo/Langinfo.pm
    M locale.c

  Log Message:
  -----------
  locale.c: Improve non-nl_langinfo() CODESET calc

Prior to this commit, on non-Windows platforms that don't have a
nl_langinfo() libc function, the code completely punted computation of
the CODESET item.  I have not been able to figure out how to do this,
even going to the locale definition files on disk (which may vary
anyway), but we can do a lot better than punting.

This commit adds three checks:

1) If the locale name is C or POSIX, we know the codeset

2) We can detect if a locale is UTF-8.  If it is, that is the codeset.
Many modern locales are of this ilk.

3) Failing that, some locales have the codeset appear in the name,
following a dot.

It isn't perfect, but it's a lot better than completely punting.


  Commit: 2fee0d4f2ac7932b2cd606e63d5d2bf9f78effcd
      https://github.com/Perl/perl5/commit/2fee0d4f2ac7932b2cd606e63d5d2bf9f78effcd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Add toggle_locale() fcns

These are designed to temporarily switch the locale for a cateogry
around some operation that needs it to be different than the current
one.  They will be used in the next commit.

These will eventually replace the more unwieldy
_is_cur_LC_category_utf8() function, which toggles as a side effect


  Commit: 74acc90ad31726bf6a9a0bc7b86176d8f76d5d88
      https://github.com/Perl/perl5/commit/74acc90ad31726bf6a9a0bc7b86176d8f76d5d88
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  New signature for static fcn my_langinfo()

This commit changes the calling sequence for my_langinfo to add the
desired locale (or a sentinel to indicate to use the current locale),
and the locale category of the desired item.

This allows the function to be able to return the desired value for any
locale, avoiding some locale changes that would happen until this
commit, and hiding the need for locale changes from outside functions,
though a couple continue to do so to avoid potential multiple changes.


  Commit: 8a6fdecc35835a86690759d5783a32e0ca3f8b93
      https://github.com/Perl/perl5/commit/8a6fdecc35835a86690759d5783a32e0ca3f8b93
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add is_locale_utf8()

Previous commits have added the infrastructure to be able to determine
if a locale is UTF-8.  This will prove useful, and this commit adds
a function to encapsulate this information, and uses it in a couple of
places, with more to come in future commits.

This uses as a final fallback, mbtowc(), which some sources view was a
late adder to C89, and others as not really being available until C99.
Future commits will add heuristics when that function isn't available.


  Commit: 5a0d84da5d7bd78cf3db8badf5c3cd1f26cccee4
      https://github.com/Perl/perl5/commit/5a0d84da5d7bd78cf3db8badf5c3cd1f26cccee4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add fcn for UTF8ness determination

get_locale_string_utf8ness_i() will determine if the string it is passed
in the locale it is passed is to be treated as UTF-8, or not.


  Commit: 03e8c0fd272eed589b8a6d59c714ff09318c9ee0
      https://github.com/Perl/perl5/commit/03e8c0fd272eed589b8a6d59c714ff09318c9ee0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXX perldelta Move POSIX::localeconv() logic to locale.c

The code currently in POSIX.xs is moved to locale.c, and reworked some
to fit in that scheme, and the logic for the workaround for the Windows
broken localeconv() is made more robust.

This is in preparation for the next commit which will use this logic
instead of (imperfectly) duplicating it.

This also creates Perl_localeconv() for direct XS calls of this
functionality.


  Commit: bac8e4cdcdd9a0296d7e7f7cf98db2497e7f9254
      https://github.com/Perl/perl5/commit/bac8e4cdcdd9a0296d7e7f7cf98db2497e7f9254
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: localeconv() unconditional NUMERIC toggle

It is possible to lockout changing the LC_NUMERIC locale.  This is done
in some printf cases where a recursive call could get the radix
character wrong.  But localeconv(), which could be called during this
recursion on some platforms, toggles the locale briefly, without
affecting the surrounding calls; so it can do the toggle
unconditionally.

The previous commit merely moved the functionality of localeconv() from
POSIX.xs to locale.c.  This commit expands upon that.


  Commit: c67bd38a6326cce1591cb3a0b1594497013e92d0
      https://github.com/Perl/perl5/commit/c67bd38a6326cce1591cb3a0b1594497013e92d0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Collapse duplicate logic into one instance

The previous commit move the logic for localeconv() into locale.c.  This
commit takes advantage of that to use it instead of repeating the logic.

On Windows, there is alternative way of finding the radix character for
systems that have a localeconv() that could cause a race.  Prior to this
commit, if that failed to find something that looked like the radix, it
returned a '?'.  Now it will drop down to using this new code, as the
likelihood of the race is small.

Notably, this commit removes the inconsistent duplicate logic that had
been used to deal with the Windows broken localeconv() bug.


  Commit: ee00d25c4efdb521ab91abdc0d2ecf566d789f91
      https://github.com/Perl/perl5/commit/ee00d25c4efdb521ab91abdc0d2ecf566d789f91
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Fix windows bug with broken localeconv()

localeconv() was broken on Windows until VS 2015.  As a workaround, this
was using my_snprintf() to find what the decimal point character is,
trying to avoid our workaround for localeconv(), which has a (slight)
chance of a race condition.

The problem is that my_snprintf() might not end up calling snprintf at
all; I didn't trace all possibilities in Windows.  So it doesn't make
for a reliable sentinel.

This commit now specifically uses libc snprintf(), and if it fails, drops
down to try localeconv().


  Commit: c5f3cd3bc79f927c5ce5ac93b5e2893dc6506b6c
      https://github.com/Perl/perl5/commit/c5f3cd3bc79f927c5ce5ac93b5e2893dc6506b6c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M ext/POSIX/POSIX.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Add my_strftime8()

This is like plain my_strftime(), but additionally returns an indication
of the UTF-8ness of the returned string


  Commit: c0bd96ca3d5f642334f8c8e0f39a6d76ad3a83f0
      https://github.com/Perl/perl5/commit/c0bd96ca3d5f642334f8c8e0f39a6d76ad3a83f0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add utf8ness return param to static fcn

my_langinfo_i() now will additionally return the UTF-8ness of the
returned string.


  Commit: 32d914e0a3fab8308d2ca552433e2fbe1a7242bc
      https://github.com/Perl/perl5/commit/32d914e0a3fab8308d2ca552433e2fbe1a7242bc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M ext/I18N-Langinfo/Langinfo.xs
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Add Perl_langinfo8()

This is like Perl_langinfo() but additionally returns information about
the UTF-8ness of the returned string.


  Commit: 30bce767d39e4f10a6402ff29f510ec8a4e595dd
      https://github.com/Perl/perl5/commit/30bce767d39e4f10a6402ff29f510ec8a4e595dd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add fallbacks if no mbtowc()

This add heuristics that work well for non-English locales to determine
if a locale is UTF-8 or not when mbtowc() isn't available.  It would be
a very rare compiler that didn't have that these days, but this covers
that case as best as I have been able to figure out.


  Commit: f3f2014484f51c0bd4a1d66f95e1a4db4623df78
      https://github.com/Perl/perl5/commit/f3f2014484f51c0bd4a1d66f95e1a4db4623df78
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use Strerror(), not strerror()


  Commit: c23762a93a6225ce7b5d1fe27b8459bf385fc2d3
      https://github.com/Perl/perl5/commit/c23762a93a6225ce7b5d1fe27b8459bf385fc2d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Refactor #ifdef's for clarity

The my_strerror() function has effectively 5 different implementations
depending on the capabilities of the platform.  Only a few lines are
common to all, the set-up and the return.  The #ifdefs obscure the
underlying logic.  So this commit separates them out into 5 different
functions, with the result that it's clear what is going on in each.


  Commit: 957fae40d5c0c7667006630d1460d78a5ca07376
      https://github.com/Perl/perl5/commit/957fae40d5c0c7667006630d1460d78a5ca07376
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Avoid mojibake in "$!"

In stress testing, I discovered that the LC_CTYPE and LC_MESSAGES
locales need to be the same locale, or strerror() can return
question marks or mojibake instead of the proper message.

This commit refactors the handling of stringifying "$!" to make the
locales of both categories the same during the stringification.

Actually, I suspect it isn't the locale, but the codeset of the locale
that needs to be the same.  I suspect that if the categories were both
in different UTF-8 locales, or both in single-byte locales, that things
would work fine.  But it's cheaper to find the locale rather than the
locale's codeset, so that is what is done.


  Commit: 72afc032329b9334b98ae1a0cdfd574329889315
      https://github.com/Perl/perl5/commit/72afc032329b9334b98ae1a0cdfd574329889315
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M makedef.pl
    M mg.c
    M proto.h

  Log Message:
  -----------
  Move utf8ness calc for $! into locale.c from mg.c

locale.c has the infrastructure to handle this, so remove repeated
logic.

The removed code tried to discern better based on using script runs, but
this actually doesn't help, so is removed.


  Commit: 599d02fef42f8c6a4e5618f338bab0535187f3ae
      https://github.com/Perl/perl5/commit/599d02fef42f8c6a4e5618f338bab0535187f3ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M mg.c

  Log Message:
  -----------
  mg.c: White-space only

Indent newly formed block from the previous commit.


  Commit: 28d6fc2607fb5be6b138dac41dcb6d66740f0e34
      https://github.com/Perl/perl5/commit/28d6fc2607fb5be6b138dac41dcb6d66740f0e34
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  locale.c: Rmv no longer used code; UTF8ness cache

What these functions do has been subsumed by code introduced in previous
commits, and in a more straight forward manner.

Also removed in this commit is the cache of the knowing what locales are
UTF-8 or not.  This data is now cheaper to calculate when needed, and
there is now a single entry cache, so I don't think the complexity
warrants keeping it.

It could be added back if necessary, split off from the remainder of
this commit.


  Commit: 637586c49d9db3bda822f60637df184bb2ad9dca
      https://github.com/Perl/perl5/commit/637586c49d9db3bda822f60637df184bb2ad9dca
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Don't discard locale info in starting P2008

The program is started in the global locale, and then is converted to
the POSIX 2008 per-thread locale API.  Prior to this commit the startup
locale was discarded.  It really should be the foundation for the 2008
locales.  I don't know of any current paths through the code that this
makes a difference for, but it is a potential hole that is easy to plug.


  Commit: 0d52736f9ae358a811966ea2575211389f59d0bd
      https://github.com/Perl/perl5/commit/0d52736f9ae358a811966ea2575211389f59d0bd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M perl.h
    M proto.h

  Log Message:
  -----------
  Add a common locale panic macro and functions

This will make sure that all the necessary clean up gets done.


  Commit: 34a50c695d0560c1d1c7f2cbddeacb298fd71a98
      https://github.com/Perl/perl5/commit/34a50c695d0560c1d1c7f2cbddeacb298fd71a98
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Clean up thread_locale_init()

We can use internal functions to this file instead of the API ones here.
This commit also calls  sync_locale() to avoid repeated logic.


  Commit: c80a0f419f29cc4738b7b806757e1052d163c8c1
      https://github.com/Perl/perl5/commit/c80a0f419f29cc4738b7b806757e1052d163c8c1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Omit an extra copy

In this case in Perl_setlocale(), we can just return the plain result
from setlocale(), as, if something further needs to be done that would
destroy it, that is taken care of already at the time.

On per-thread locale platforms, the result already is in a per-category
buffer.


  Commit: abf84d1fd6f699c424e830d99ff4d81281659a86
      https://github.com/Perl/perl5/commit/abf84d1fd6f699c424e830d99ff4d81281659a86
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M sv.c

  Log Message:
  -----------
  locale.c: Cache the current LC_CTYPE locale name

This is now used as a cache of length 1 to avoid having to lookup up the
UTF-8ness as often.

There was a complicated cache previously, but changes to the logic
caused that to be much less necessary, and it is no longer actually
used, and will be removed in a later commit.

But it's pretty easy to keep this single value around to cut further
down the new scheme's need to look it up

This commit also skips doing S_newctype() if the new boss is the same as
the old


  Commit: 1f5b22f467c5fa99cb369cf6a9b5c148445e125b
      https://github.com/Perl/perl5/commit/1f5b22f467c5fa99cb369cf6a9b5c148445e125b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Initialize a variable

I don't believe there is a bug with this PL_numeric_name being
uninitialized, but this is an easy precaution.


  Commit: c1276dc9e7c279c5edca159e6ea26e1271876f95
      https://github.com/Perl/perl5/commit/c1276dc9e7c279c5edca159e6ea26e1271876f95
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  Swap the ordering of two locale category indices

Perl internally uses a mapping of locale category values into a
consecutive sequence of indices starting at 0.  These are used as
indexes into arrays.  The reason is that the category numbers are
opaque, vary by platform, aren't necessarily sequential, and hence are
hard to make table driven code for.

This commit makes the LC_CTYPE index 0, and LC_NUMERIC equal to 1;
swapping them.  The reason is to cause LC_CTYPE to get done first in the
many loops through the categories.  The UTF8ness of categories is an
often needed value, and most of the time the categories will have the
same locale.  LC_CTYPE is needed to calculate the UTF8ness, and by doing
it first and caching the result, the other categories likely
automatically will use the same value, without having to recalculate.


  Commit: d976cd91b0495739ea595ac0b8b6eeaac87ef88a
      https://github.com/Perl/perl5/commit/d976cd91b0495739ea595ac0b8b6eeaac87ef88a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use new mechanism to save/restore errno

Instead of explicitly saving the errno around debugging statements, the
new more general mechanism is used.


  Commit: 0540a375ed3080b485a273a92c64b5a20b575391
      https://github.com/Perl/perl5/commit/0540a375ed3080b485a273a92c64b5a20b575391
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move DEBUG location info

This commit takes advantage of the new mechanism to add common DEBUGGING
code to print the __FILE__ and __LINE__ of every debugging statement.
This allows those to be removed from each statement, and have them
implicitly added.

This make things consistent, and easier to read and add new statements.


  Commit: 5d53b7a0c8ac55a3eed5a5ed5668b150e93bc220
      https://github.com/Perl/perl5/commit/5d53b7a0c8ac55a3eed5a5ed5668b150e93bc220
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add some asserts


  Commit: 7c5a6c801a43bea6f5934338dfe6b8c757733c42
      https://github.com/Perl/perl5/commit/7c5a6c801a43bea6f5934338dfe6b8c757733c42
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder code, rmv unneeded conditional

Previous commits have made the conditional about being able to find the
radix character unnecessary.  The called function my_langinfo_c()
handles the case properly.

This commit also makes the trivial case first in a conditional, as that
is easier to comprehend.


  Commit: 28162d1e3cb5951f5ab19aada2630c52bce0a25b
      https://github.com/Perl/perl5/commit/28162d1e3cb5951f5ab19aada2630c52bce0a25b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Reorder 'if' branches

It's better for understandability to have positive tests than negative
ones


  Commit: e2c726038344ef3f087ac67d43c1263e9f720472
      https://github.com/Perl/perl5/commit/e2c726038344ef3f087ac67d43c1263e9f720472
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Refactor a static function

S_new_numeric() is called after the LC_NUMERIC category is changed, to
update various ancillary information Perl keeps.

This reorders the function so that on POSIX 2008 platforms, the numeric
object is created earlier.  This allows for fewer operations on those
platforms, as we already have the correct value in place for querying
what the radix and thousands separator characters are.

Explanatory comments are also added.


  Commit: f318a04b1822a646ee61101400f0cfb6df9985d3
      https://github.com/Perl/perl5/commit/f318a04b1822a646ee61101400f0cfb6df9985d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Rmv unused code

The code to handle changing LC_NUMERIC and LC_COLLATION handled the
possibility of being passed a NULL locale name.  But we're not changing
things unless we have a new locale, and know its name, so a name is
always passed


  Commit: 063581d765b2d925883b7e3dd57d6c1e98fbd838
      https://github.com/Perl/perl5/commit/063581d765b2d925883b7e3dd57d6c1e98fbd838
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv unnecessary savepv()

This moves the savepv() down in the function, after we know we need it.


  Commit: c99c644a9cf71b15d8fecc35ada1e2448424edcb
      https://github.com/Perl/perl5/commit/c99c644a9cf71b15d8fecc35ada1e2448424edcb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Mv line of code later in fcn

This avoids setting this until needed.


  Commit: cf7c1213016e1bf62d8ff292a68e5f6c32b51be3
      https://github.com/Perl/perl5/commit/cf7c1213016e1bf62d8ff292a68e5f6c32b51be3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Skip code if will be a no-op

The previous commits have fixed things up so that at this point in the
code nothing has changed, and if nothing will change, we can just return


  Commit: 4353ba0f5670872d5c8570069b708400c36ca19b
      https://github.com/Perl/perl5/commit/4353ba0f5670872d5c8570069b708400c36ca19b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Specially handle the trivial case

When setting the numeric radix character, and the locale is C or POSIX,
we know it's going to be a dot without having to look further.  All the
ancillary info is also known.  So save time and just set these all and
return.


  Commit: 8437845c945a7dd2c990c4d4ecde89b1758ff867
      https://github.com/Perl/perl5/commit/8437845c945a7dd2c990c4d4ecde89b1758ff867
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h
    M numeric.c

  Log Message:
  -----------
  numeric.c, intrpvar.h: Rmv outdated condition, comment

It hasn't been true for some releases that the SV was removed when the
radix was a dot.  Instead the SV contains the correct decimal point
character at all times.


  Commit: 0a81facd605ea870d8f178d66f7c77a9835c25d3
      https://github.com/Perl/perl5/commit/0a81facd605ea870d8f178d66f7c77a9835c25d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Swap setting related variables

It is clearer to use the variable more directly related to what is being
set; then set the more distantly related onve, than vice versa


  Commit: 121d07825816a0784d2d16d3e81b5df8339c9fd6
      https://github.com/Perl/perl5/commit/121d07825816a0784d2d16d3e81b5df8339c9fd6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv special case

At this point in the code, we know we are already switched into the
underlying numeric locale; there's no need to further check to see if
switching is necessary.


  Commit: c8d2334ad57e21116a3a1490174b607cde30d5f6
      https://github.com/Perl/perl5/commit/c8d2334ad57e21116a3a1490174b607cde30d5f6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M perl.c
    M sv.c

  Log Message:
  -----------
  locale.c: Save underlying radix character

When changing locales the new decimal point needs to be calculated.
This commit creates a new per-interpreter variable to save that
calculation, so it only has to be done when a new locale is set; prior
to this commit it was recalculated each time it was needed.

The calculation is still performed twice when the new locale is switched
into.  But the redundant calculation will be removed in a couple of
commits hence.


  Commit: 7113feb8d3ea84db5a08d3772153cd2dfacb210d
      https://github.com/Perl/perl5/commit/7113feb8d3ea84db5a08d3772153cd2dfacb210d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move debug stmt to earlier in fcn


  Commit: a6e1954fb51583783853a94119c94f5b3de8a9a6
      https://github.com/Perl/perl5/commit/a6e1954fb51583783853a94119c94f5b3de8a9a6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c

  Log Message:
  -----------
  locale.c: Rmv S_set_numeric_radix()

Previous commits have made this function much smaller, and its branches
can be easily absorbed into the callers, with clearer code, and in fact
removal of a redundant calculation of the locale's radix character,
promised in a previous commit's message


  Commit: b2e6500009653fbed974c01264e57fb0676963d8
      https://github.com/Perl/perl5/commit/b2e6500009653fbed974c01264e57fb0676963d8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXXfinish commit msg locale.c: Rmv some special cases

The previous commits have allowed the removal of special casing of
making sure the


  Commit: cd61ca7d1ae13e58890c13ad4ef1903af5405065
      https://github.com/Perl/perl5/commit/cd61ca7d1ae13e58890c13ad4ef1903af5405065
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change assert() into STATIC_ASSERT()


  Commit: a2cfebac05afe05beb43c2da9dd236bcabfc1098
      https://github.com/Perl/perl5/commit/a2cfebac05afe05beb43c2da9dd236bcabfc1098
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use standard fold table for C locale

Copy the standard compiled-in ASCII fold table when the locale is C or
POSIX, instead of looping through all 256 characters and computing them.
This saves some time as well as ensures that any platform bugs become
irrelevant.


  Commit: 1c1c507b4363d510a57aa6ce9865bc16d3aaa9c6
      https://github.com/Perl/perl5/commit/1c1c507b4363d510a57aa6ce9865bc16d3aaa9c6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add check that strxfrm didn't fail

The code failed to take into account that strxfrm() can fail for reasons
besides buffer length.  It does not return errors, and the only way to
check is to set errno to 0 beforehand, and check that it is still 0
afterwards.


  Commit: 72ae42ba21e0d3aef09d8dc1e0a85965b1bb5660
      https://github.com/Perl/perl5/commit/72ae42ba21e0d3aef09d8dc1e0a85965b1bb5660
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't assume LC_CTYPE, LC_COLLATE are same

This code is using isCNTRL_LC which depends on LC_CTYPE to verify that
something in the LC_COLLATE locale is a control.  That only works
properly if the two locales are the same.  This commit adds code to
ensure they are.


  Commit: 926ab667f652954de2e5b058d31170c5dc5d196b
      https://github.com/Perl/perl5/commit/926ab667f652954de2e5b058d31170c5dc5d196b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: strxfrm() requires LC_CTYPE eq LC_COLLATE

The libc functions strxfrm() on some platforms requires the LC_CTYPE
locale to be the same as the LC_COLLATE locale (or rather, probably that
they have the same code set, but checking for locale is cheaper).
Otherwise mojibake would result, or more likely the function will fail,
setting errno.

This commit brings the locales into alignment if necessary


  Commit: 0336a2574d771f7813dcfb0be23ff2870d5a11b8
      https://github.com/Perl/perl5/commit/0336a2574d771f7813dcfb0be23ff2870d5a11b8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M Configure
    M Cross/config.sh-arm-linux
    M Cross/config.sh-arm-linux-n770
    M NetWare/config.wc
    M Porting/config.sh
    M config_h.SH
    M configure.com
    M metaconfig.h
    M plan9/config_sh.sample
    M uconfig.h
    M uconfig.sh
    M uconfig64.sh
    M win32/config.gc
    M win32/config.vc

  Log Message:
  -----------
  Configure: strxfrm_l


  Commit: 948112dfd11ebd0750558aad9c02aae47e0a80b7
      https://github.com/Perl/perl5/commit/948112dfd11ebd0750558aad9c02aae47e0a80b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  XXX temp: lib/locale.t: debug


  Commit: e8b7e107421ab07644f3bdc0df9e13ab4d5d659e
      https://github.com/Perl/perl5/commit/e8b7e107421ab07644f3bdc0df9e13ab4d5d659e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use strxfrm_l() if available

This more modern version of the function doesn't require us to change
locales.


  Commit: 6110c8c0e54cba55525e9d93b04f52e5bd616403
      https://github.com/Perl/perl5/commit/6110c8c0e54cba55525e9d93b04f52e5bd616403
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M mathoms.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  Change name of internal function

This is in preparation for working on it; the new name, mem_collxfrm_ is
in compliance with the C Standard; the old was not.


  Commit: f50e77e71794c59bc2b6a4ff2f31d9fbbc6b896f
      https://github.com/Perl/perl5/commit/f50e77e71794c59bc2b6a4ff2f31d9fbbc6b896f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M ext/POSIX/POSIX.xs
    M ext/POSIX/lib/POSIX.pod
    M locale.c
    M proto.h

  Log Message:
  -----------
  XXXdelta Fix POSIX::strxfrm()

This function takes an SV containing a PV.  The encoding of that PV is
based on the locale of the LC_CTYPE locale.  It really doesn't make
sense to collate based off of the sequencing of a different locale, which
prior to this commit it would do if the LC_COLLATION locale were
different.


  Commit: a54687a5664e7b70b711443d6458c3d37ffcc6fe
      https://github.com/Perl/perl5/commit/a54687a5664e7b70b711443d6458c3d37ffcc6fe
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Improve debugging for mem_collxfrm()

This prints out more information, better organized.

It also moves up the info from -DLv to plain -DL


  Commit: 5181743c0907c8d4284eebfd089f3f0ca5ccbd77
      https://github.com/Perl/perl5/commit/5181743c0907c8d4284eebfd089f3f0ca5ccbd77
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add debug statement for collation failure

Perhaps this should be a warning to the user that we couldn't calculate
collation info for the locale, but at least there should be a way to
get that info from a DEBUG statement


  Commit: 278b83f54f487c95e11668454f14851b8488e55c
      https://github.com/Perl/perl5/commit/278b83f54f487c95e11668454f14851b8488e55c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Print code point in hex, not decimal

Hex is the more familiar form


  Commit: 4e3a599c85cd5589a46c64f2fd5016a4521ea0cb
      https://github.com/Perl/perl5/commit/4e3a599c85cd5589a46c64f2fd5016a4521ea0cb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M locale.c
    M perl.h

  Log Message:
  -----------
  Mark certain mutex lock macros as private

mbtowc() mblen(), and wctomb() should not be directly used by XS
writers; instead use the POSIX versions.  Don't encourage the direct use
by having public macros to aid in their use.


  Commit: d4f6977d824c9b557d8c3254f57a20714e4c79f9
      https://github.com/Perl/perl5/commit/d4f6977d824c9b557d8c3254f57a20714e4c79f9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move some code around

This is purely to make future commits have smaller real difference
listings, and involves a temporary (complemented) copy of a preprocessor
conditional.


  Commit: a759bbee3e307f95879ca80ef0a83d109dec897c
      https://github.com/Perl/perl5/commit/a759bbee3e307f95879ca80ef0a83d109dec897c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Reorder cpp branches

Disposing of the trivial case first makes things easier to read.


  Commit: fa1be7493b26c6e3aba7d393960a9c6b2fca7229
      https://github.com/Perl/perl5/commit/fa1be7493b26c6e3aba7d393960a9c6b2fca7229
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.h
    M sv.c

  Log Message:
  -----------
  Make the locale mutex a general semaphore

Future commits will use this new capability, and in Configurations where
no locale locking is currently necessary.


  Commit: f251556ac01ddee391c637528a92ac62d24122e9
      https://github.com/Perl/perl5/commit/f251556ac01ddee391c637528a92ac62d24122e9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M makedef.pl
    M perl.h
    M perlvars.h
    M sv.c

  Log Message:
  -----------
  Use general locale mutex for numeric operations

This commit removes the separate mutex for locking locale-related
numeric operations on threaded perls; instead using the general locale
one.  The previous commit made that a general semaphore, so now suitable
for use for this purpose as well.

This means that the locale can be locked for the duration of some
sprintf operations, longer than before this commit.  But on most modern
platforms, thread-safe locales cause this lock to expand just to a
no-op; so there is no effect on these.  And on the impacted platforms,
one is not supposed to be using locales and threads in combination, as
races can occur.  This lock is used on those perls to keep Perl's
manipulation of LC_NUMERIC thread-safe.  And for those there is also no
effect, as they already lock around those sprintf's.


  Commit: c44a8f258cd53dd37fa5c2432967af5a80893ec3
      https://github.com/Perl/perl5/commit/c44a8f258cd53dd37fa5c2432967af5a80893ec3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Add locale macro to wrap static-space-using fncs

Some functions return a result in a global-to-the-program buffer, or
they have an internal global buffer.  Other threads must be kept from
simultaneously using that function.  This macro is to be used for all
such ones dealing with locales.  Ideally, there would be a separate mutex
for each such buffer space.  But these functions also have to lock the
locale from changing during their execution, and there aren't that many
such functions, and they actually are rarely executed.  So a single lock
will do.

This will allow future commits to have more targeted locking for
functions that don't affect the global locale.


  Commit: 51b65ca7f2e295906d82bd30450da76b666f09ae
      https://github.com/Perl/perl5/commit/51b65ca7f2e295906d82bd30450da76b666f09ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Redefine the POSIX.xs locale macros using prev commit

This commit uses the new macro introduced in the previous commit to
define the internal locale mutex macros in POSIX.xs


  Commit: 898f80855a79dbacb477cf2937f6810e61bf073a
      https://github.com/Perl/perl5/commit/898f80855a79dbacb477cf2937f6810e61bf073a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  perl.h: Remove NL_LANGINFO_LOCK

This is needed in precisely one place in the code, so move it to there.


  Commit: 8f40acce2f09f9a7a14790c0479f2ea82f5bbde7
      https://github.com/Perl/perl5/commit/8f40acce2f09f9a7a14790c0479f2ea82f5bbde7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  perl.h: Remove LOCALECONV_LOCK

This is needed in just one function, in locale.c, so more it there.


  Commit: d54b081d79cdc8a2a3f150bc50d9ccee396aa333
      https://github.com/Perl/perl5/commit/d54b081d79cdc8a2a3f150bc50d9ccee396aa333
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  XXX perlembed Add PORCELAIN_SETLOCALE_LOCK/UNLOCK

This macro is used to surround raw setlocale() calls so that the return
value in a global static buffer can be saved without interference with
other threads.

There are a few very rarely occurring instances in locale.c that are
converted to use this.  These previously could have been races.

The raw setlocales in the initialization function are not guarded, as
these happen early in the Perl process initialization, before threading
is enabled.

This is buggy if there are multiple embedded perls.  It can't be helped.
perlembed is being updated to indicate this.


  Commit: c78576c28b5b3d14290d089d601bef78122e4328
      https://github.com/Perl/perl5/commit/c78576c28b5b3d14290d089d601bef78122e4328
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move #defining SETLOCALE_LOCK

This simplifies slightly, and will allow further simplification


  Commit: 527bfc5c80eb1ff59b5ce56326bd249d11ee58a7
      https://github.com/Perl/perl5/commit/527bfc5c80eb1ff59b5ce56326bd249d11ee58a7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move LOCALE_READ_LOCK #definition

To enable future simplifications


  Commit: db2f227f22cb38dd073481481b8e2f5fd7564f4b
      https://github.com/Perl/perl5/commit/db2f227f22cb38dd073481481b8e2f5fd7564f4b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M sv.c

  Log Message:
  -----------
  locale.c: Move #define to perl.h; use it elsewhere

 Rather than recalculate this combined conditional, do it once in
 perl.h.


  Commit: a799bdc5104dd20cd1301e45d5ba1f73b3191909
      https://github.com/Perl/perl5/commit/a799bdc5104dd20cd1301e45d5ba1f73b3191909
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Mitigate unsafe threaded locales

This a new set of macros and functions to do locale changing and
querying for platforms where perl is compiled with threads, but the
platform doesn't have thread-safe locale handling.

All it does is:

1) The return of setlocale() is always safely saved in a per-thread
buffer, and
2) setlocale() is protected by a mutex from other threads which are
using perl's locale functions.

This isn't much, but it might be enough to get some programs to work on
such platforms which rarely change or query the locale.


  Commit: 23bf275bb4ec248754c09bb8642eea67e2424e59
      https://github.com/Perl/perl5/commit/23bf275bb4ec248754c09bb8642eea67e2424e59
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX make sure comments get moved appropriately perl.h: Remove now empty block

Previous commits have left this empty except for comments.


  Commit: 12c05eb03c8c676675ef9c6e906c9fddfb682956
      https://github.com/Perl/perl5/commit/12c05eb03c8c676675ef9c6e906c9fddfb682956
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M pp.c

  Log Message:
  -----------
  XXX pp.c: do %g print under mutex,


  Commit: e3e4fcc4079263d611644ce7fdc61f33560cef5c
      https://github.com/Perl/perl5/commit/e3e4fcc4079263d611644ce7fdc61f33560cef5c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ebcdic_tables.h
    M embedvar.h
    M globvar.sym
    M inline.h
    M intrpvar.h
    M perl.h
    M regen/ebcdic.pl
    M sv.c

  Log Message:
  -----------
  Make fc(), /i thread-safe on participating platforms

A long standing bug in Perl that has gone undetected is that the array
is global that is created when changing locales and tells fc() and qr//i
matching what the folds are in the new locale.

What this means is that any program only has one set of fold definitions
that apply to all threads within it, even if we claim that the locales
are thread-safe on the given platform.  One possibility for this going
undetected so long is that no one is using locales on multi-threaded
systems much.  Another possibility is that modern UTF-8 locales have the
same set of folds as any other one.

It is a simple matter to make the fold array per-thread instead of
per-process, and that solves the problem transparently to other code.

I discovered this stress-testing locale handling under threads.  That
test will be added in a future commit.


  Commit: d84f2b49d011bea54051e6f37f1437a47ab2af36
      https://github.com/Perl/perl5/commit/d84f2b49d011bea54051e6f37f1437a47ab2af36
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M inline.h
    M locale.c

  Log Message:
  -----------
  locale.c/inline.h: Add fold calc debug statements

Under verbose debugging, this shows non-standard folds


  Commit: 6ef18b05c11a6d34804bdc56937191b164eddae7
      https://github.com/Perl/perl5/commit/6ef18b05c11a6d34804bdc56937191b164eddae7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c comments


  Commit: ca220c0453826054f8be3ac3e54f590e9cc215a0
      https://github.com/Perl/perl5/commit/ca220c0453826054f8be3ac3e54f590e9cc215a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX prob drop; done before anything so no races


  Commit: a0efb671ad1ec966186cfa3e88e2b118a892e926
      https://github.com/Perl/perl5/commit/a0efb671ad1ec966186cfa3e88e2b118a892e926
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Add #define for gwENVr_LOCALEr_UNLOCK

This is for functions that read the locale and environment and write to
some global space.


  Commit: 2a6d87a03f5819e1ae8b058e8f2e0dd5527022de
      https://github.com/Perl/perl5/commit/2a6d87a03f5819e1ae8b058e8f2e0dd5527022de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h
    M time64.c

  Log Message:
  -----------
  Remove ENV_LOCALE_LOCK/UNLOCK macros

These are subsumed by gwENVr_LOCALEr_LOCK created in the previous
commit.


  Commit: 78c881203b999ca4c74b6d2d8d74cc0c8c95ab81
      https://github.com/Perl/perl5/commit/78c881203b999ca4c74b6d2d8d74cc0c8c95ab81
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h
    M time64.c
    M util.c

  Log Message:
  -----------
  Change ENV/LOCALE locking read macro names

The old name was confusing.


  Commit: ffba5dee9f59e92eb5462f5c104109eb7374a3e5
      https://github.com/Perl/perl5/commit/ffba5dee9f59e92eb5462f5c104109eb7374a3e5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Move some statements

So they are closer to related statements


  Commit: 52dc9343c0cc2ee58a78457f0d6657987762fea4
      https://github.com/Perl/perl5/commit/52dc9343c0cc2ee58a78457f0d6657987762fea4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h
    M util.c

  Log Message:
  -----------
  perl.h: Finish implementing combo ENV/LOCALE mutexes

There are cases where an executing function is vulnerable to either the
locale or environment being changed by another thread.  This commit
implements macros that use mutexes to protect these critical sections.
There are two cases that exist:  one where the functions only read; and
one where they can also need exclusive control so that a competing
thread can't overwrite the returned static buffer before it is safely
copied.

5.32 had a placeholder for these, but didn't actually implement it.
Instead it locked just the ENV portion.  On modern platforms with
thread-safe locales, the locale portion is a no-op anyway, so things
worked on them.

This new commit extends that safety to other platforms.  This has long
been a vulnerability in Perl.


  Commit: 63752ae2d9d17744e9a4d9a378c90154b05727c2
      https://github.com/Perl/perl5/commit/63752ae2d9d17744e9a4d9a378c90154b05727c2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M time64.c

  Log Message:
  -----------
  time64.c: Remove no longer needed code

This code defined some macros; those are now defined by perl.h


  Commit: 24a9fd126b8b31e0e06c4693875efc5c6d503246
      https://github.com/Perl/perl5/commit/24a9fd126b8b31e0e06c4693875efc5c6d503246
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M pp_sys.c

  Log Message:
  -----------
  XXX need to StructCopy pp_sys mutexes


  Commit: 24950bc410241efbf321258f094f67f1ceb41554
      https://github.com/Perl/perl5/commit/24950bc410241efbf321258f094f67f1ceb41554
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M win32/win32.c

  Log Message:
  -----------
  win32.c: Add mutexes around some calls

These could have races.


  Commit: 287ebe80185008e4f4191a1acfab56fd041069bb
      https://github.com/Perl/perl5/commit/287ebe80185008e4f4191a1acfab56fd041069bb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

  Log Message:
  -----------
  POSIX.xs env locks, check file for more


  Commit: 49b3bb5205f96e6f31c88a4089ec449f4eb04e0e
      https://github.com/Perl/perl5/commit/49b3bb5205f96e6f31c88a4089ec449f4eb04e0e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M util.c

  Log Message:
  -----------
  util.c: mktime needs to run under a mutex

per the Posix standard


  Commit: 7c1ad70ead76ad6a874b996b922e0e0675f46bf9
      https://github.com/Perl/perl5/commit/7c1ad70ead76ad6a874b996b922e0e0675f46bf9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M util.c

  Log Message:
  -----------
  util.c: Add locks around strftime() calls


  Commit: 9e071cf251692c4a27e070cdf8df2f9c971c3fbd
      https://github.com/Perl/perl5/commit/9e071cf251692c4a27e070cdf8df2f9c971c3fbd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M os2/os2.c

  Log Message:
  -----------
  os2: Use many reader lock instead of exclusive

This is just reading the environment, not changing it, so a many readers
can be accessing it at the same time.


  Commit: f5f577d24257399ef472a970a8acc8767d4b5e72
      https://github.com/Perl/perl5/commit/f5f577d24257399ef472a970a8acc8767d4b5e72
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.pm
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  XXX cpan PR Time-Piece: Add locks

This add mutex locking around some unsafe thread operations to make this
module thread-safe.


  Commit: 5fabadc6c758898a25a1000af4adfe33e177ef62
      https://github.com/Perl/perl5/commit/5fabadc6c758898a25a1000af4adfe33e177ef62
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use foldEQ_locale() if available

This supported core function is thread-safe and knows about Perl
internals, so is preferable to the similar libc function, which is now
used only as a fallback.  This commit also bomb proofs the code by
adding an additional fallback, specified in C89, which isn't a great
substituted, but far better than nothing.


  Commit: 90c309448ec03ff7e93d81de262105ca6d760c11
      https://github.com/Perl/perl5/commit/90c309448ec03ff7e93d81de262105ca6d760c11
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isSPACE, not isspace

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isSPACE_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: fcb6cef338b0abacb27e751458c997d0b6b1f063
      https://github.com/Perl/perl5/commit/fcb6cef338b0abacb27e751458c997d0b6b1f063
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isDIGIT, not isdigit

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isDIGIT_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: 2ac24c837bba9e7d1215d1c4645043d3d0c9894d
      https://github.com/Perl/perl5/commit/2ac24c837bba9e7d1215d1c4645043d3d0c9894d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs

  Log Message:
  -----------
  Time-Piece: Use isUPPER, not isupper

The latter gives results that are dependent on the program's underlying
locale, and so may be inconsistent.

If locale dependence is actually desired, isUPPER_LC should be used, as
it knows about various things the module writer shouldn't have to
concern themselves with.  It is supported since 5.004


  Commit: 10fd3e073fa937e173e5a6e90aa7f27462675433
      https://github.com/Perl/perl5/commit/10fd3e073fa937e173e5a6e90aa7f27462675433
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M pod/perlhacktips.pod

  Log Message:
  -----------
  XXX incomplete perlhacktips:


  Commit: 0ca2c0890df5e0101ab09f0c5ddd58fbcc5e99b1
      https://github.com/Perl/perl5/commit/0ca2c0890df5e0101ab09f0c5ddd58fbcc5e99b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M dist/IO/IO.pm
    M dist/IO/IO.xs

  Log Message:
  -----------
  XXX check if using ppport IO.xs: Remove fallback code furnished by ppport


  Commit: bd80978f569dada13e18018cb661048b1843e5ac
      https://github.com/Perl/perl5/commit/bd80978f569dada13e18018cb661048b1843e5ac
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M hints/freebsd.sh

  Log Message:
  -----------
  XXX check with freebsd: hints/freebsd.sh


  Commit: 9811f395cb384e42768af1da0808089ab7f8f42a
      https://github.com/Perl/perl5/commit/9811f395cb384e42768af1da0808089ab7f8f42a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M thread.h

  Log Message:
  -----------
  thread.h: White-space, braces only


  Commit: be4e9535550d02259138d8ceaa7ea2e8893765ae
      https://github.com/Perl/perl5/commit/be4e9535550d02259138d8ceaa7ea2e8893765ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M thread.h

  Log Message:
  -----------
  XXX thread.h Save errno around lock/unlock


  Commit: 69bcc11c40cf759bf8a3ecc2fd60d94c81a19b34
      https://github.com/Perl/perl5/commit/69bcc11c40cf759bf8a3ecc2fd60d94c81a19b34
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX perl.h: Debugging mutex lock'


  Commit: b11aeec2a5f213d32d41e59d6a93a76eb58c8099
      https://github.com/Perl/perl5/commit/b11aeec2a5f213d32d41e59d6a93a76eb58c8099
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs
    M locale.c
    M perl.h

  Log Message:
  -----------
  locks


  Commit: 26373fbacf9abe0102a9c49e42a1e0d8a962f813
      https://github.com/Perl/perl5/commit/26373fbacf9abe0102a9c49e42a1e0d8a962f813
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  XXX locale.c: Kludge because C obj getting destroyed


  Commit: 0c15807da7f89b5c274f54cfce134f944cb5512e
      https://github.com/Perl/perl5/commit/0c15807da7f89b5c274f54cfce134f944cb5512e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M .github/workflows/testsuite.yml

  Log Message:
  -----------
  Make DEBUGGING the default on CI


  Commit: 7d70590992f383d5cc0dc9b58ddfdd74f0281a8b
      https://github.com/Perl/perl5/commit/7d70590992f383d5cc0dc9b58ddfdd74f0281a8b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/run/locale.t

  Log Message:
  -----------
  t/run/locale.t: Move init stmt

This makes it easier to add a line to turn on debugging temporarily


  Commit: eac17c241db85cfb618ae05311495db604d3dbf1
      https://github.com/Perl/perl5/commit/eac17c241db85cfb618ae05311495db604d3dbf1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/run/locale.t

  Log Message:
  -----------
  XXX run/locale.t temp debug


  Commit: fec98937d75e7245e14d7de2e642b39a3f924efc
      https://github.com/Perl/perl5/commit/fec98937d75e7245e14d7de2e642b39a3f924efc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/porting/customized.dat
    M vutil.c

  Log Message:
  -----------
  vutil.c: Clean up white space

Change tabs to blanks; Fix indentation; chomp trailing white space

Remove some blank lines that don't contribute to readability


  Commit: 285d62eb72a72786289adc11be8a2eef4bcf0c46
      https://github.com/Perl/perl5/commit/285d62eb72a72786289adc11be8a2eef4bcf0c46
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/porting/customized.dat
    M vutil.c

  Log Message:
  -----------
  vutil.c: Simplify locale handling

I read the code over and realized that there was a much simpler way to
do things.


  Commit: f0d3de61867f84aede0f57d6f111c64dfb8bd3a0
      https://github.com/Perl/perl5/commit/f0d3de61867f84aede0f57d6f111c64dfb8bd3a0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Change a branch into an assert

This code should no longer be necessary; but verify


  Commit: d36e356633922c5d915d70e15faeec1f2a2227ec
      https://github.com/Perl/perl5/commit/d36e356633922c5d915d70e15faeec1f2a2227ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  Add pTHX to locale_thread_init()


  Commit: f8e6bfef7e2af5826200f10493526f70286d557b
      https://github.com/Perl/perl5/commit/f8e6bfef7e2af5826200f10493526f70286d557b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  l


  Commit: 5f53d489ff799aad3b36c9c2e2c60131aa6014d1
      https://github.com/Perl/perl5/commit/5f53d489ff799aad3b36c9c2e2c60131aa6014d1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M sv.c

  Log Message:
  -----------
  PLcurlocales


  Commit: 12734a6414bcd894c9d599eb665bc1c5b9f78012
      https://github.com/Perl/perl5/commit/12734a6414bcd894c9d599eb665bc1c5b9f78012
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embedvar.h
    M intrpvar.h
    M locale.c
    M sv.c

  Log Message:
  -----------
  Revert "PLcurlocales"

This reverts commit cd1fd76eac05b9ca866bb6f1dae6151767aa3d76.


  Commit: 13411fb911761e304aedc4fd8d3b93076b463673
      https://github.com/Perl/perl5/commit/13411fb911761e304aedc4fd8d3b93076b463673
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  lib/locale.t FILE debug


  Commit: f42c0cf3948a3a5d5b79ed751d1e6e1136496e97
      https://github.com/Perl/perl5/commit/f42c0cf3948a3a5d5b79ed751d1e6e1136496e97
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: windows DEBUG stmts


  Commit: 947982845ebe175da86ab6f9db805f3bfd67dad3
      https://github.com/Perl/perl5/commit/947982845ebe175da86ab6f9db805f3bfd67dad3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M proto.h

  Log Message:
  -----------
  f save_to_buffer ignore return


  Commit: b1eb58af1481e7796c0cad343588568c145a4ea9
      https://github.com/Perl/perl5/commit/b1eb58af1481e7796c0cad343588568c145a4ea9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Add layer for char classification/case change

This layer currently expands to just the layer below it, but that will
be changed in a future commit.


  Commit: b933165ea6ecce0cbfab01f2bfff1ce7e1352b4c
      https://github.com/Perl/perl5/commit/b933165ea6ecce0cbfab01f2bfff1ce7e1352b4c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M dist/ExtUtils-ParseXS/lib/perlxs.pod
    M t/porting/known_pod_issues.dat

  Log Message:
  -----------
  perlxs


  Commit: a074eeb82f13901c5706e38ad37d73f613929b8b
      https://github.com/Perl/perl5/commit/a074eeb82f13901c5706e38ad37d73f613929b8b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX Temp dont use querylocale()


  Commit: 634a9c23fbf96d7074d9365d456cee10a972c7aa
      https://github.com/Perl/perl5/commit/634a9c23fbf96d7074d9365d456cee10a972c7aa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  l


  Commit: 67d3c209640f461bccc10dac8ea28864de3ce2d3
      https://github.com/Perl/perl5/commit/67d3c209640f461bccc10dac8ea28864de3ce2d3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Swap position of two defns; add comment


  Commit: ab9c00225e50627699b8998c89b6793d1fe128ae
      https://github.com/Perl/perl5/commit/ab9c00225e50627699b8998c89b6793d1fe128ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h
    M locale.c

  Log Message:
  -----------
  locale.c: Add 'Lazy' location changing

When comparing two strings for order under 'use locale', one can call
strcoll() which creates hidden modified versions of the strings based on
the locale's collation ordering, does the comparison, and then throws
away the modified versions.

Or one can call strxfrm() to create a non-hidden modified version of
each string, and then do a straight comparison.  The advantage here is
that you are in control of when to discard the modified version, and the
(expensive) transformation is done just once, no matter how many times a
comparison is done.

Perl assumes that a string will be compared multiple times, so the first
time it happens under 'use locale', strxfrm() is called, and the
modified string is attached via magic to the SV.  The modified string is
discarded if the string changes, or is recomputed if the locale has
changed since the computation was done.

The transformation generally occupies some multiple of size of the
original string.  Memory must be allocated to hold it.  For any given
locale, the amount is predictable for all strings, roughly via a linear
equation "mx+b", where x is the size of the original string.  By
computing 'm' and 'b' once, Perl can allocate enough memory to hold the
transformation, but not too much.  (m and b are adjusted up as necessary
as more strings get transformed.)  This minimizes mallocs.

But the calculation of m and b is somewhat expensive, and only necessary
if the program actually does a string compare under 'use locale'.

This commit defers the calculation until needed.  It does the bare
minimum of changes accomplish this.  The next commit will rearrange
things.


  Commit: 81eee4bc854a148255e8909b203a9592d32def5c
      https://github.com/Perl/perl5/commit/81eee4bc854a148255e8909b203a9592d32def5c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Move code, white-space, comment only

This moves the function created in the previous commit to a more logical
place in the file; just before its only call.  It also removes nested
blocks that are no longer necessary.


  Commit: 85bf273fbb377eabfd40c6c618a65f610f4cb5d5
      https://github.com/Perl/perl5/commit/85bf273fbb377eabfd40c6c618a65f610f4cb5d5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M util.c

  Log Message:
  -----------
  XXX Configure strftime() is C89

We can assume it exists


  Commit: 944bc4988e1e36d5220aa0d6b4107aabf7eccdec
      https://github.com/Perl/perl5/commit/944bc4988e1e36d5220aa0d6b4107aabf7eccdec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h
    M sv.c

  Log Message:
  -----------
  perl.h: Change macro name to be C conformant

Leading underscores in names are undefined


  Commit: d5c3b1e7b66374ebc1a3a84e6517850056478b8b
      https://github.com/Perl/perl5/commit/d5c3b1e7b66374ebc1a3a84e6517850056478b8b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M patchlevel.h

  Log Message:
  -----------
  patchlevel.h: White-space only: properly indent


  Commit: 6cccfee63f1400f0e3d295b9570919d210c4208c
      https://github.com/Perl/perl5/commit/6cccfee63f1400f0e3d295b9570919d210c4208c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Comments white-space only


  Commit: 50145f1ad4c9936e0dafbb10cac79c81ad96af69
      https://github.com/Perl/perl5/commit/50145f1ad4c9936e0dafbb10cac79c81ad96af69
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M makedef.pl

  Log Message:
  -----------
  makedef.pl: Rmv obsolete symbol

This routine is now a static function, so needn't be in makedef.pl


  Commit: 0cb7dafafb80487ddf4ada167187e7ebb671d3c4
      https://github.com/Perl/perl5/commit/0cb7dafafb80487ddf4ada167187e7ebb671d3c4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Refactor internal debugging function

setlocale_debug_string() variants  now use Perl_form, a function I
didn't know existed when I originally wrote this code.


  Commit: 636e3da7c9c83d5a35b1eb786d014b8e69f7e49f
      https://github.com/Perl/perl5/commit/636e3da7c9c83d5a35b1eb786d014b8e69f7e49f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M locale.c
    M proto.h

  Log Message:
  -----------
  locale.c: Add a fcn to display LC_ALL

This is trivial on a platform that has LC_ALL, but requires extra work
on platforms that don't.


  Commit: 52b703201070d29b7db30e62eaec0f06f621c2dc
      https://github.com/Perl/perl5/commit/52b703201070d29b7db30e62eaec0f06f621c2dc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Add debugging check

If we run across the REPLACEMENT CHARACTER, its likely a mismatch
between LC_CTYPE and another category.  This panics on debugging builds.


  Commit: b56322126b82f03b6cdb17f67f7e8a995095da42
      https://github.com/Perl/perl5/commit/b56322126b82f03b6cdb17f67f7e8a995095da42
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Initialize variables to avoid runtime check

Initializing them means we no longer have to tess that they are non-NULL
each time they are accessed.


  Commit: 9c03af538824f6d2f793e115b7f2cf3888066f7b
      https://github.com/Perl/perl5/commit/9c03af538824f6d2f793e115b7f2cf3888066f7b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Initialize PL_underlying_numeric_obj

This probably doesn't matter, but it's better form to initialize it to a
sane value.


  Commit: c8b5d1ca08d47651dd8d2358527f3ba1abec4cbf
      https://github.com/Perl/perl5/commit/c8b5d1ca08d47651dd8d2358527f3ba1abec4cbf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Print better failing test numbers

This test module is 'required' from other perl test files.  If it
encounters an error, it doesn't know how to report it.  What it does is
call fail() if available, and a home-grown one otherwise.  Prior to this
commit the home-grown version just made all tests number 0.  This commit
changes that to make them sequentially numbered from a very high
starting one, so as not to interfere with the outer calls.


  Commit: c9e2590d29f8be0ae670fbe4eeb592fc5faf77f6
      https://github.com/Perl/perl5/commit/c9e2590d29f8be0ae670fbe4eeb592fc5faf77f6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  cygwin


  Commit: 3ed50f70bad64ac02c80a68ee51e8586a7f45bbb
      https://github.com/Perl/perl5/commit/3ed50f70bad64ac02c80a68ee51e8586a7f45bbb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M patchlevel.h

  Log Message:
  -----------
  Kludge to get cygwin to compile


  Commit: 9a5302c08114c7f4752469e6a73631e51330fde5
      https://github.com/Perl/perl5/commit/9a5302c08114c7f4752469e6a73631e51330fde5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  cygwin use fcns


  Commit: 1bd89a3c88067ff571a0cbfe0ae56383c311996b
      https://github.com/Perl/perl5/commit/1bd89a3c88067ff571a0cbfe0ae56383c311996b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cygwin/cygwin.c

  Log Message:
  -----------
  Revert "cygwin use fcns"

This reverts commit 24fbf2ccd8777c4af31eb9f8038d4cff7073b0c4.


  Commit: b185acb4cf9dd787f63849c3b3d6a382f292ce4f
      https://github.com/Perl/perl5/commit/b185acb4cf9dd787f63849c3b3d6a382f292ce4f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Refactor _trylocale()

This function is used to see if a locale actually works on the current
platform.  I was not fully aware of the glitches if a category is in one
locale, and LC_CTYPE is in another.  This makes sure they are both the
same; and this results in some simplification.


  Commit: d45f941d3e000e13ba884651553c177dae7da6ed
      https://github.com/Perl/perl5/commit/d45f941d3e000e13ba884651553c177dae7da6ed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Fail earlier

Move the code that returns failure into the loop, so won't keep
iterating if failure is going to happen anyway.


  Commit: a09181fa3d5a3ddcae62a455933eaede9489c261
      https://github.com/Perl/perl5/commit/a09181fa3d5a3ddcae62a455933eaede9489c261
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Add checks

This verifies that we can restore a locale that we were previously in,
and makes sure that we don't stay in a locale that doesn't work well.
Doing so has led to crashes.


  Commit: c150725ead5c58ac8665ef72c53aceae2e572177
      https://github.com/Perl/perl5/commit/c150725ead5c58ac8665ef72c53aceae2e572177
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Don't allow commas in locale names

This was a problem in some buggy Windows versions.  This addition keeps
locales with this bug from being tested.


  Commit: 88d55cb347b1e337654bbded54af1c6099d4e7f0
      https://github.com/Perl/perl5/commit/88d55cb347b1e337654bbded54af1c6099d4e7f0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Check for unsupported locales

This commit causes us not to view unsupported locales as legitimate for
testing.  Core dumps occurred on some platforms without this.

It looks for a diagnostic that the next commit in this series will
generate.


  Commit: cc84a862c0f01fda1e9a894a459586c394e864df
      https://github.com/Perl/perl5/commit/cc84a862c0f01fda1e9a894a459586c394e864df
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M locale.c
    M pod/perldiag.pod

  Log Message:
  -----------
  XXXdelta Add locale unsupported test

Perl only suppots multi-byte locales that are UTF-8.  It turns out that
the others are worse than I thought, and if someone switches to one, the
program can crash.

This commit generates a default-on diagnostic when switching into such a
locale, and doesn't take the steps to add its data to the LC_CTYPE
database.

The check has been done in various releases for some time, but this
elevates its severity and tries to avoid actually using its data.

The previous commit caused the test suite to view such a locale as
unacceptable.


  Commit: e111b57c425a7c55635dc6dd2c39878f72bf5fc9
      https://github.com/Perl/perl5/commit/e111b57c425a7c55635dc6dd2c39878f72bf5fc9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: White-space only


  Commit: 502fac1bd6bb2b9b88107529d5804ef2ed0e63af
      https://github.com/Perl/perl5/commit/502fac1bd6bb2b9b88107529d5804ef2ed0e63af
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  XXX t/loc_tools.pl: Temp debug


  Commit: efd49e840ba3ee170a5c9a1bb16ca9d711674b96
      https://github.com/Perl/perl5/commit/efd49e840ba3ee170a5c9a1bb16ca9d711674b96
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  t/loc_tools.pl: Swap lines

It doesn't matter much, but some warnings might be output by doing the
'use locale' before turning off warnings.


  Commit: d4b38e31598804dc740bd71973fb83cc66308dea
      https://github.com/Perl/perl5/commit/d4b38e31598804dc740bd71973fb83cc66308dea
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads


  Commit: 2f244c776c3451deb9c0ffbbddb039acd4e8fa01
      https://github.com/Perl/perl5/commit/2f244c776c3451deb9c0ffbbddb039acd4e8fa01
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads debugging


  Commit: f2f81f9b944a26a7921cf28e3b5f35024178301e
      https://github.com/Perl/perl5/commit/f2f81f9b944a26a7921cf28e3b5f35024178301e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: White space only


  Commit: 10fb4af70966796feba8bbfcf4e32c8696815d00
      https://github.com/Perl/perl5/commit/10fb4af70966796feba8bbfcf4e32c8696815d00
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M intrpvar.h

  Log Message:
  -----------
  intrpvar.h: Move some defns into appropriate #ifdefs


  Commit: ae962b41dc465893a30562e45e12cf58c0be5764
      https://github.com/Perl/perl5/commit/ae962b41dc465893a30562e45e12cf58c0be5764
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M intrpvar.h
    M locale.c
    M proto.h
    M sv.c

  Log Message:
  -----------
  XXX finish msg,thread_init Revamp sync_locale, switch_to_global_locale

f


  Commit: 724bf071786017b1fd5a38342cc5b35df39b9cb8
      https://github.com/Perl/perl5/commit/724bf071786017b1fd5a38342cc5b35df39b9cb8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv duplicate clones

These variables are already cloned when creating a thread


  Commit: 4b32b2c652b81d36b1a2bcb4e35d09e5e33fc9ba
      https://github.com/Perl/perl5/commit/4b32b2c652b81d36b1a2bcb4e35d09e5e33fc9ba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: Rmv redundant clause

If threaded locales are being used, basic locales are too.  No need to
check both


  Commit: f7acdfc0c2ceeea81aa991384e29c73169ebac90
      https://github.com/Perl/perl5/commit/f7acdfc0c2ceeea81aa991384e29c73169ebac90
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h
    M lib/locale.t

  Log Message:
  -----------
  Fix isspace() handling on AIX

This box incorrectly thinks the NBSP is a graphic on many locales.
Overriding that makes these locales behave like proper POSIX ones.


  Commit: 3f6c81054ee3b18009f5a21e4dc2e839936dd4b7
      https://github.com/Perl/perl5/commit/3f6c81054ee3b18009f5a21e4dc2e839936dd4b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M sv.c

  Log Message:
  -----------
  sv.c: White-space only

Replace leading tabs with spaces


  Commit: 8d65f916265d8bda79586a77cc9c98337fa076f7
      https://github.com/Perl/perl5/commit/8d65f916265d8bda79586a77cc9c98337fa076f7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M hints/cygwin.sh

  Log Message:
  -----------
  XXX check if really necessary after everything: Don't use POSIX 2008 locale

This has been found to be buggy leading to dying inside the newlocale()
in S_emulate_setlocale_i()


  Commit: 892c44a7f0cfe615a98cfcb9629d40a632e0c199
      https://github.com/Perl/perl5/commit/892c44a7f0cfe615a98cfcb9629d40a632e0c199
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  lib/locale.t: Use I18N::Langinfo, not POSIX::localeconv()

Now that Langinfo is ported to every box, it requires less work than
localeconv(), and offers more choices.  This commit changes to use it,
and for more info when debugging, gets some additional info from it.


  Commit: 2008565f2aeac9a6f99508e950e38191036d7d49
      https://github.com/Perl/perl5/commit/2008565f2aeac9a6f99508e950e38191036d7d49
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  XXX cygwin debugging small macro buf


  Commit: 95c3b14526b99d0d46f839c15083b7f49d8bfbdd
      https://github.com/Perl/perl5/commit/95c3b14526b99d0d46f839c15083b7f49d8bfbdd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  perl.h: Avoid unnecessary calls to set_numeric_standard()

Prior to this commit, set_numeric_standard() was called unconditionally,
and it could decide if it should do anything or not.  But the variable
that indicates this is available to the caller, so by testing it, it can
avoid the call, which is most likely the case.


  Commit: 5ccaca0f91840c4ae9ff9e6d1544829477f80abc
      https://github.com/Perl/perl5/commit/5ccaca0f91840c4ae9ff9e6d1544829477f80abc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX perl.h: Debugging trace across all files


  Commit: 903081a0c02bca9004e0f8dbdaaac4f73544afd3
      https://github.com/Perl/perl5/commit/903081a0c02bca9004e0f8dbdaaac4f73544afd3
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  XXX Use internal querylocale on Linux

XXX Need to bisect to see where this goes bad
XXX Is effectively a no-op due to other debugging code


  Commit: fb17b7a87a9ffbf003eb13c5b6c102e7f910cd5e
      https://github.com/Perl/perl5/commit/fb17b7a87a9ffbf003eb13c5b6c102e7f910cd5e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M cpan/Time-Piece/Piece.xs
    M dist/ExtUtils-ParseXS/lib/perlxs.pod
    M handy.h
    M iperlsys.h
    M locale.c
    M perl.h
    M pod/perllocale.pod
    M regen/reentr.pl
    M regexec.c
    M util.c

  Log Message:
  -----------
  Notes


  Commit: 4bf3a68a9665a921247103bdd03502ddbbd1b8a2
      https://github.com/Perl/perl5/commit/4bf3a68a9665a921247103bdd03502ddbbd1b8a2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M ext/I18N-Langinfo/t/Langinfo.t
    M ext/POSIX/POSIX.xs
    M intrpvar.h
    M lib/locale.t
    M lib/locale_threads.t
    M locale.c
    M makedef.pl
    M mg.c
    M perl.c
    M perl.h
    M proto.h
    M regexec.c
    M sv.c
    M t/loc_tools.pl
    M t/run/locale.t

  Log Message:
  -----------
  57


  Commit: b6f3fbdb25e46b81865b0bc006973ceb48732663
      https://github.com/Perl/perl5/commit/b6f3fbdb25e46b81865b0bc006973ceb48732663
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  58


  Commit: 105e955c3af8671dfeba9a8d6203774793f50832
      https://github.com/Perl/perl5/commit/105e955c3af8671dfeba9a8d6203774793f50832
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M lib/locale_threads.t
    M locale.c
    M pp.c

  Log Message:
  -----------
  59


Compare: https://github.com/Perl/perl5/compare/7b346467c71d...105e955c3af8



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