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[Perl/perl5] 968b91: Add ability to easily add info to DEBUG output

From:
Karl Williamson via perl5-changes
Date:
March 15, 2021 21:14
Subject:
[Perl/perl5] 968b91: Add ability to easily add info to DEBUG output
Message ID:
Perl/perl5/push/refs/heads/smoke-me/khw-locale/1b091d-72e5b7@github.com
  Branch: refs/heads/smoke-me/khw-locale
  Home:   https://github.com/Perl/perl5
  Commit: 968b91b11ce9d2c2878ac67d2d9548e452156d78
      https://github.com/Perl/perl5/commit/968b91b11ce9d2c2878ac67d2d9548e452156d78
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Add ability to easily add info to DEBUG output

This commit adds two macros that a user can define and recompile Perl to
get every active DEBUG statement to do some thing beyond what it would
normally do.

This allows someone to recompile Perl when they need to delve deeper
into fixing a bug without otherwise increasing memory use or slowing
execution.


  Commit: 39edf0d95783e7cb725ae2acea50888fdcc4801f
      https://github.com/Perl/perl5/commit/39edf0d95783e7cb725ae2acea50888fdcc4801f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M dosish.h
    M unixish.h

  Log Message:
  -----------
  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: f0c0e2a869b2e13d6e82b0f8e198f76a88f0c273
      https://github.com/Perl/perl5/commit/f0c0e2a869b2e13d6e82b0f8e198f76a88f0c273
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M t/loc_tools.pl

  Log Message:
  -----------
  loc_tools.pl: Fix valid_categories calculation

This function was returning the locale categories known to the platform;
it should exclude those that perl has been compiled to ignore.


  Commit: d1efd84b3daa7bc0cccbc4baff96ab5790fe804a
      https://github.com/Perl/perl5/commit/d1efd84b3daa7bc0cccbc4baff96ab5790fe804a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M mg.c

  Log Message:
  -----------
  XXX better message: mg.c: Silence compiler warning


  Commit: 6313cf58b295f9913a11bf80425686190d0c622f
      https://github.com/Perl/perl5/commit/6313cf58b295f9913a11bf80425686190d0c622f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 we 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 reproduce 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: f84b3311fe33e8027ab3fafec993aff92d278728
      https://github.com/Perl/perl5/commit/f84b3311fe33e8027ab3fafec993aff92d278728
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M lib/locale_threads.t

  Log Message:
  -----------
  XXX locale_threads


  Commit: 4efe49435b326e0b3a36264ee5d406f9f1f85931
      https://github.com/Perl/perl5/commit/4efe49435b326e0b3a36264ee5d406f9f1f85931
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 48eaffc2a1bc01ccb63ef25101bf109fcfe050bd
      https://github.com/Perl/perl5/commit/48eaffc2a1bc01ccb63ef25101bf109fcfe050bd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 5f71f9782e92ad62f6f64d9e9aee943bb0c6971c
      https://github.com/Perl/perl5/commit/5f71f9782e92ad62f6f64d9e9aee943bb0c6971c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  Change 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: d91c61d066c6399e4e5fb3ad1ccdfcc2ec5767f7
      https://github.com/Perl/perl5/commit/d91c61d066c6399e4e5fb3ad1ccdfcc2ec5767f7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 isWORDCHAR_LC definition for non-Windows to match that
platform, adding an UNLIKELY().


  Commit: 532b33fec01772d363af1036831f51af4e765519
      https://github.com/Perl/perl5/commit/532b33fec01772d363af1036831f51af4e765519
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M handy.h

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


  Commit: 6f6a23032f9ea3256500faf7f6c07572496114b1
      https://github.com/Perl/perl5/commit/6f6a23032f9ea3256500faf7f6c07572496114b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M handy.h

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

Replace isIDFIRST_LC  with a slightly faster implementation, in line
with what isWORDCHAR already does


  Commit: ff351ceb4618831b80c640549201090fef23c1d7
      https://github.com/Perl/perl5/commit/ff351ceb4618831b80c640549201090fef23c1d7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 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: 3105056ca0196c01ee0ec717d23e6557dd60008a
      https://github.com/Perl/perl5/commit/3105056ca0196c01ee0ec717d23e6557dd60008a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Rmv unneeded generality

The possible first character of an ID is always an alpha in the range
0-255, so there is no harm changing from the former to the latter.  And
future changes would otherwise have needed an extra parameter in a bunch
of macros.


  Commit: 3336307c91d3172534972abd40ece1136b2d96b4
      https://github.com/Perl/perl5/commit/3336307c91d3172534972abd40ece1136b2d96b4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M handy.h

  Log Message:
  -----------
  handy.h: Don't special case isASCII_LC

This was an attempt to save instructions, but future commits will need
the generality


  Commit: c64006f8406d125cd1e4694bd102b389deb01e17
      https://github.com/Perl/perl5/commit/c64006f8406d125cd1e4694bd102b389deb01e17
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: de7164bd5266db6a694ad724df73bc39cd735a62
      https://github.com/Perl/perl5/commit/de7164bd5266db6a694ad724df73bc39cd735a62
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M globvar.sym
    M handy.h
    M inline.h
    M perl.h
    M proto.h
    M regexec.c

  Log Message:
  -----------
  regexec.c: Use function call table to streamline code

This replaces a switch() statement with a function pointer table.  But
the main reason I'm doing this is for future functionality.


  Commit: 4d8df00adecc939493874398addd58beda31797e
      https://github.com/Perl/perl5/commit/4d8df00adecc939493874398addd58beda31797e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 79d62a0149bc71b23ae8f36ddda43d2b3af8f413
      https://github.com/Perl/perl5/commit/79d62a0149bc71b23ae8f36ddda43d2b3af8f413
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b0b96854d20b95a5aa244fe436683fa54dbf828d
      https://github.com/Perl/perl5/commit/b0b96854d20b95a5aa244fe436683fa54dbf828d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 4c23ed253894db6fdb99213c145b65535f10ac6f
      https://github.com/Perl/perl5/commit/4c23ed253894db6fdb99213c145b65535f10ac6f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 11bba57b2cb125e2d1ee1361415d8a5494728503
      https://github.com/Perl/perl5/commit/11bba57b2cb125e2d1ee1361415d8a5494728503
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: df42da41630a0a444f05899f0e6569c6521b78fc
      https://github.com/Perl/perl5/commit/df42da41630a0a444f05899f0e6569c6521b78fc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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  macro is the
base level.


  Commit: 1ef68c35b89a746d7ebb95d5ea8e16bea2be322b
      https://github.com/Perl/perl5/commit/1ef68c35b89a746d7ebb95d5ea8e16bea2be322b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 676224c9b055e5c8c69d5e9ad49e652feb91ca27
      https://github.com/Perl/perl5/commit/676224c9b055e5c8c69d5e9ad49e652feb91ca27
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 edgest of the locale-handling code; once found the index is used in
future bits of the current operation.


  Commit: f0d4a9aafe88b324c789b0d46cbfec1138840139
      https://github.com/Perl/perl5/commit/f0d4a9aafe88b324c789b0d46cbfec1138840139
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 9380011d5ce8ad694349fcaf942e3820198b4620
      https://github.com/Perl/perl5/commit/9380011d5ce8ad694349fcaf942e3820198b4620
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: bcf4134f58f77b31f2037766c7b32659b155e8b2
      https://github.com/Perl/perl5/commit/bcf4134f58f77b31f2037766c7b32659b155e8b2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Use nocontext; avoid rarely needed dTHX

This is a rare case; no point in doing a dTHX just for it.


  Commit: 83bb2dffe339e3ee40a670a4cd7bcbd1d9b28f36
      https://github.com/Perl/perl5/commit/83bb2dffe339e3ee40a670a4cd7bcbd1d9b28f36
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 28c9b284d8916f3256f3067c685050a32a6ed64c
      https://github.com/Perl/perl5/commit/28c9b284d8916f3256f3067c685050a32a6ed64c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 7880664607bb10a0d2e68b13436f6946d28da8c0
      https://github.com/Perl/perl5/commit/7880664607bb10a0d2e68b13436f6946d28da8c0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 28b6d49f5fe1395f1604859621822d8716f58c47
      https://github.com/Perl/perl5/commit/28b6d49f5fe1395f1604859621822d8716f58c47
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: ee89c6367ce0d934e605f5b7f7e413b2870061ed
      https://github.com/Perl/perl5/commit/ee89c6367ce0d934e605f5b7f7e413b2870061ed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 095285c452b9bca9695bc935777f38f7bd0de2be
      https://github.com/Perl/perl5/commit/095285c452b9bca9695bc935777f38f7bd0de2be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 15cf5bdb8db59606b93aa28e5cb76e2b23751e4e
      https://github.com/Perl/perl5/commit/15cf5bdb8db59606b93aa28e5cb76e2b23751e4e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: decb48ce8fe50eccd9acbf2957cb6ecf2bf6c1ec
      https://github.com/Perl/perl5/commit/decb48ce8fe50eccd9acbf2957cb6ecf2bf6c1ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: fc55ab61603bc386c62b6dad7fddf878894875f5
      https://github.com/Perl/perl5/commit/fc55ab61603bc386c62b6dad7fddf878894875f5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: ca16d37bba49de4fd0bb444d59c3770f3d56568f
      https://github.com/Perl/perl5/commit/ca16d37bba49de4fd0bb444d59c3770f3d56568f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: adfac0ae4e6813277671da41e7591302e4302bdb
      https://github.com/Perl/perl5/commit/adfac0ae4e6813277671da41e7591302e4302bdb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 9335aaebd74f046717f87bb312d0e794f2e5df67
      https://github.com/Perl/perl5/commit/9335aaebd74f046717f87bb312d0e794f2e5df67
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: fe47862d5b585268c7b4dbb6ac05770959421ed1
      https://github.com/Perl/perl5/commit/fe47862d5b585268c7b4dbb6ac05770959421ed1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 5c0fc14c9339e36aef0dfd72382560d486b92ec6
      https://github.com/Perl/perl5/commit/5c0fc14c9339e36aef0dfd72382560d486b92ec6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 74db3099c2c0f85d05f46c54d6ac74e34583badb
      https://github.com/Perl/perl5/commit/74db3099c2c0f85d05f46c54d6ac74e34583badb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: be5442a6ee552040b2018e6658853bcc1cc84bfd
      https://github.com/Perl/perl5/commit/be5442a6ee552040b2018e6658853bcc1cc84bfd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 054397f14238f7906d4cea2a60a847d71dfde205
      https://github.com/Perl/perl5/commit/054397f14238f7906d4cea2a60a847d71dfde205
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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
used 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: d81498113bffbd5eba8d5c4d41304bb9678115e8
      https://github.com/Perl/perl5/commit/d81498113bffbd5eba8d5c4d41304bb9678115e8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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.

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: 4db5d74280c161886186fa8bfe3bf9a931dbdbbc
      https://github.com/Perl/perl5/commit/4db5d74280c161886186fa8bfe3bf9a931dbdbbc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 1c26999b323fcfdced718bc4f48e5a4ac84c2b3b
      https://github.com/Perl/perl5/commit/1c26999b323fcfdced718bc4f48e5a4ac84c2b3b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 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: 680bfcb1ee8064c6e96ae2eb57abbeeb34df55f4
      https://github.com/Perl/perl5/commit/680bfcb1ee8064c6e96ae2eb57abbeeb34df55f4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 713dfbad070a10ebb2e4f154e7e915d04852cb8f
      https://github.com/Perl/perl5/commit/713dfbad070a10ebb2e4f154e7e915d04852cb8f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 79002ef99a66be77101f38dee8a2b4615353c0ad
      https://github.com/Perl/perl5/commit/79002ef99a66be77101f38dee8a2b4615353c0ad
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 4d6685eda40291cf41dd0a9cbd03cf2d9e8edc18
      https://github.com/Perl/perl5/commit/4d6685eda40291cf41dd0a9cbd03cf2d9e8edc18
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 15a83d89f48a1fa227a72ad8eced6a24c9b38acc
      https://github.com/Perl/perl5/commit/15a83d89f48a1fa227a72ad8eced6a24c9b38acc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: a82762264dc89fe2e72db38915824b93e4322349
      https://github.com/Perl/perl5/commit/a82762264dc89fe2e72db38915824b93e4322349
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 5d79ff604f07f762590feb400579f0cd348d1c61
      https://github.com/Perl/perl5/commit/5d79ff604f07f762590feb400579f0cd348d1c61
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: c2aad6c1e359d4e5fc3347daf9ae3a03480a673a
      https://github.com/Perl/perl5/commit/c2aad6c1e359d4e5fc3347daf9ae3a03480a673a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 0f669fcca795ed1f9231b16f1a1b8d96474f65d0
      https://github.com/Perl/perl5/commit/0f669fcca795ed1f9231b16f1a1b8d96474f65d0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 4e67cfdb742a89a70342fc9643ffeb3c6411a5f4
      https://github.com/Perl/perl5/commit/4e67cfdb742a89a70342fc9643ffeb3c6411a5f4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 67bedf28519552dd62a0754c7e85b7cbba432934
      https://github.com/Perl/perl5/commit/67bedf28519552dd62a0754c7e85b7cbba432934
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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

Properly indent some nested preprocessor directives


  Commit: 30ad7fe45b11f1fdf3c9f2bacb4a98fee2417071
      https://github.com/Perl/perl5/commit/30ad7fe45b11f1fdf3c9f2bacb4a98fee2417071
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: e24fa1b5d399f5b0593ea6d89ef0d0dad7f316b6
      https://github.com/Perl/perl5/commit/e24fa1b5d399f5b0593ea6d89ef0d0dad7f316b6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 0854ee349cfe90f20b15f4b49dab052ed6d0e7b1
      https://github.com/Perl/perl5/commit/0854ee349cfe90f20b15f4b49dab052ed6d0e7b1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: ac464b241de96e041afd9e536e3be2a32b3f3bae
      https://github.com/Perl/perl5/commit/ac464b241de96e041afd9e536e3be2a32b3f3bae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: a65c4666db49ae60e3d054c7b35634d2d2fff402
      https://github.com/Perl/perl5/commit/a65c4666db49ae60e3d054c7b35634d2d2fff402
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 03fbb5ec2fb0788d79a5eefb7eb30a35076449bc
      https://github.com/Perl/perl5/commit/03fbb5ec2fb0788d79a5eefb7eb30a35076449bc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 542ded189c2706e1fb834a526583ffdb5c083cd8
      https://github.com/Perl/perl5/commit/542ded189c2706e1fb834a526583ffdb5c083cd8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: ea1346993c2e0b22d293dcf7c7f1e95c12771ce2
      https://github.com/Perl/perl5/commit/ea1346993c2e0b22d293dcf7c7f1e95c12771ce2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: bda4de16a211aa4bd51acc9576b5500938d15ec5
      https://github.com/Perl/perl5/commit/bda4de16a211aa4bd51acc9576b5500938d15ec5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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

This allows some preprocessor conditionals to be removed


  Commit: a24fd7f18ea70c46f52414fda5e41ac25d66fe34
      https://github.com/Perl/perl5/commit/a24fd7f18ea70c46f52414fda5e41ac25d66fe34
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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

strEQ and && already return booleans


  Commit: b6572dd33d1ddd3993bfe1457e8949a21090a876
      https://github.com/Perl/perl5/commit/b6572dd33d1ddd3993bfe1457e8949a21090a876
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 now have seen evidence this guess was wrong, so give up
on it.

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


  Commit: 45eb8b793cc0a0252962a29f6058cbea74d395f8
      https://github.com/Perl/perl5/commit/45eb8b793cc0a0252962a29f6058cbea74d395f8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 3d234185b65fa7f082f25b020a92ed13389914ce
      https://github.com/Perl/perl5/commit/3d234185b65fa7f082f25b020a92ed13389914ce
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 69c8dfc0d2d2748a34510c8b9183c803d2be6f5a
      https://github.com/Perl/perl5/commit/69c8dfc0d2d2748a34510c8b9183c803d2be6f5a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: a3c47751534c0a0ea54855b82bf602b9ec5b6550
      https://github.com/Perl/perl5/commit/a3c47751534c0a0ea54855b82bf602b9ec5b6550
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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 before blindly changing locales that we aren't
already in the desired one, in which case this could be just as well a
no-op, and with this commit becomes one.


  Commit: 3d954e62239f3676364a22143012267da847980b
      https://github.com/Perl/perl5/commit/3d954e62239f3676364a22143012267da847980b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 0049accc41795e10c6baae7e93cb454c36f6e6ef
      https://github.com/Perl/perl5/commit/0049accc41795e10c6baae7e93cb454c36f6e6ef
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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

This is in preparation for the next commit


  Commit: 3494bedf568a860517f1b642b8d03792d1917f61
      https://github.com/Perl/perl5/commit/3494bedf568a860517f1b642b8d03792d1917f61
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: dc78082cb5571667c20b8fe39973a74407afb03e
      https://github.com/Perl/perl5/commit/dc78082cb5571667c20b8fe39973a74407afb03e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: c4d6e1680685f8ddfc3cf445703ffe638de5788f
      https://github.com/Perl/perl5/commit/c4d6e1680685f8ddfc3cf445703ffe638de5788f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 124b89addff4e10aeb14bf7db13abfcba9c14bbc
      https://github.com/Perl/perl5/commit/124b89addff4e10aeb14bf7db13abfcba9c14bbc
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 041f5d1a25c70f8c219949ce931fbece356c4f06
      https://github.com/Perl/perl5/commit/041f5d1a25c70f8c219949ce931fbece356c4f06
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 73fb3aa54d60d460e6c59be23a216817832ebbb0
      https://github.com/Perl/perl5/commit/73fb3aa54d60d460e6c59be23a216817832ebbb0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b994ce62753b14345bf4d718fe4244e968643021
      https://github.com/Perl/perl5/commit/b994ce62753b14345bf4d718fe4244e968643021
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 573318dd445642747499545f87c1b58bc1f80d25
      https://github.com/Perl/perl5/commit/573318dd445642747499545f87c1b58bc1f80d25
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: f9bd71637f8fdb765069d42d469295fabba44a16
      https://github.com/Perl/perl5/commit/f9bd71637f8fdb765069d42d469295fabba44a16
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: da53d6d90ae92c68edbe0163a5c41b5b8d5f47bf
      https://github.com/Perl/perl5/commit/da53d6d90ae92c68edbe0163a5c41b5b8d5f47bf
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: cfd233f179146aeebc1ffa67e3d6dab6490bea8d
      https://github.com/Perl/perl5/commit/cfd233f179146aeebc1ffa67e3d6dab6490bea8d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 63e1dba14d6d431d7ce8a8a7a080f856d27a0b9c
      https://github.com/Perl/perl5/commit/63e1dba14d6d431d7ce8a8a7a080f856d27a0b9c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: aa1a6ec50ebadaa2b0a03d0f547279d72a7a54fa
      https://github.com/Perl/perl5/commit/aa1a6ec50ebadaa2b0a03d0f547279d72a7a54fa
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 24cf565b9b2872057596b0eb19eea85d04954572
      https://github.com/Perl/perl5/commit/24cf565b9b2872057596b0eb19eea85d04954572
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 4eaaf939517846687729f56e5c45dcb4cfca33ed
      https://github.com/Perl/perl5/commit/4eaaf939517846687729f56e5c45dcb4cfca33ed
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 129c5274b8b0d4d29b75e050fd42d84c80cfa70e
      https://github.com/Perl/perl5/commit/129c5274b8b0d4d29b75e050fd42d84c80cfa70e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: aa106a433caefa86e5e03a3945e14cc57f2999a1
      https://github.com/Perl/perl5/commit/aa106a433caefa86e5e03a3945e14cc57f2999a1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 9014680ef8189f208e55c34686a2673be4c2b77f
      https://github.com/Perl/perl5/commit/9014680ef8189f208e55c34686a2673be4c2b77f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 1e159a9455314d443070aa3b099219eff9b333a4
      https://github.com/Perl/perl5/commit/1e159a9455314d443070aa3b099219eff9b333a4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M mg.c

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

Indent newly formed block from the previous commit.


  Commit: ed3082f950dbebf839ee84cbceed72a168d86bcd
      https://github.com/Perl/perl5/commit/ed3082f950dbebf839ee84cbceed72a168d86bcd
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 6d9bdc2eac30cc780ab4b99cf5abe57c76a8892e
      https://github.com/Perl/perl5/commit/6d9bdc2eac30cc780ab4b99cf5abe57c76a8892e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: fa32f4ddd29d0dff2cb5173873a9445451b8f180
      https://github.com/Perl/perl5/commit/fa32f4ddd29d0dff2cb5173873a9445451b8f180
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: e51bd3b27a15030b0ffa86a12c7c5e2a50052029
      https://github.com/Perl/perl5/commit/e51bd3b27a15030b0ffa86a12c7c5e2a50052029
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Revamp sync_locale()

This rarely used function was actually failing to do what it purported
in some Configurations.


  Commit: 4759d7bbc07ca9933bdedfdb79d4d055ceb202e7
      https://github.com/Perl/perl5/commit/4759d7bbc07ca9933bdedfdb79d4d055ceb202e7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 7c38a55873d162d522e2ba1f41eee4afd584be2e
      https://github.com/Perl/perl5/commit/7c38a55873d162d522e2ba1f41eee4afd584be2e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  Revamp switch_to_global_locale()

Prior to this commit, the global locale was not always getting populated
with the values from the thread being switched.


  Commit: 712e9b01af11efa525bd8e3fd81b7497ca69361d
      https://github.com/Perl/perl5/commit/712e9b01af11efa525bd8e3fd81b7497ca69361d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b1ccb9aa904d7c86d9be11ff7c938cf38ff6d3c6
      https://github.com/Perl/perl5/commit/b1ccb9aa904d7c86d9be11ff7c938cf38ff6d3c6
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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


  Commit: 9a3e25990623597dde0db0416ce48d3c04fd9a66
      https://github.com/Perl/perl5/commit/9a3e25990623597dde0db0416ce48d3c04fd9a66
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 63f8062d373ed510d2140c5e2548c803633bedeb
      https://github.com/Perl/perl5/commit/63f8062d373ed510d2140c5e2548c803633bedeb
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 30db416735e73d790c4fdaaf0754175ab07d5603
      https://github.com/Perl/perl5/commit/30db416735e73d790c4fdaaf0754175ab07d5603
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: c8d699889880deb9a46e66a7a8cb47e5907695de
      https://github.com/Perl/perl5/commit/c8d699889880deb9a46e66a7a8cb47e5907695de
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 3ed9d1d148c0eba81fa5921d8a39a53b07ce808b
      https://github.com/Perl/perl5/commit/3ed9d1d148c0eba81fa5921d8a39a53b07ce808b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 9d49522192e3e93578af0ea9bcb9a50d468c13d0
      https://github.com/Perl/perl5/commit/9d49522192e3e93578af0ea9bcb9a50d468c13d0
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 81ee1ff63f21410ad3523869eeed6ab49e2b17d8
      https://github.com/Perl/perl5/commit/81ee1ff63f21410ad3523869eeed6ab49e2b17d8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 47dfe543adb238178ce6bf17aa9473ef7572470f
      https://github.com/Perl/perl5/commit/47dfe543adb238178ce6bf17aa9473ef7572470f
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 99e9c65b57cc4b93f3caf7f43b9a7713520c2956
      https://github.com/Perl/perl5/commit/99e9c65b57cc4b93f3caf7f43b9a7713520c2956
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: e4038c7a8e0c36c30d244c83ddf2bf46997fcf61
      https://github.com/Perl/perl5/commit/e4038c7a8e0c36c30d244c83ddf2bf46997fcf61
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 9dfa6b042f10b6944a9098a56a2060d5552ce7c5
      https://github.com/Perl/perl5/commit/9dfa6b042f10b6944a9098a56a2060d5552ce7c5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: a655a42ed58214b521cebecd67e79609bd3b7938
      https://github.com/Perl/perl5/commit/a655a42ed58214b521cebecd67e79609bd3b7938
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: bfbd31d96d33d1859deb2caa80bea91e9772263d
      https://github.com/Perl/perl5/commit/bfbd31d96d33d1859deb2caa80bea91e9772263d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: a1894d99b235c6e64ef41f3648c3827ff506123a
      https://github.com/Perl/perl5/commit/a1894d99b235c6e64ef41f3648c3827ff506123a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: cfd8b37c5c0610d550bec8d750ba85c962dddb3d
      https://github.com/Perl/perl5/commit/cfd8b37c5c0610d550bec8d750ba85c962dddb3d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M lib/locale.t

  Log Message:
  -----------
  XXX temp: Windows debug


  Commit: ab7b9b7752a4ccde870ad3ac0d5b91ff1a5f3fa8
      https://github.com/Perl/perl5/commit/ab7b9b7752a4ccde870ad3ac0d5b91ff1a5f3fa8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: bec7736508618557777b44fd92c7192706fa4a3e
      https://github.com/Perl/perl5/commit/bec7736508618557777b44fd92c7192706fa4a3e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: d17d952627f301090d3b36b23d0cd2cbc13688b7
      https://github.com/Perl/perl5/commit/d17d952627f301090d3b36b23d0cd2cbc13688b7
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 92cb4108289b3c32fd247cea691d9e070298abad
      https://github.com/Perl/perl5/commit/92cb4108289b3c32fd247cea691d9e070298abad
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M embed.fnc
    M locale.c

  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: 68ec373ede3c7acf790befcccb29a658a9224a78
      https://github.com/Perl/perl5/commit/68ec373ede3c7acf790befcccb29a658a9224a78
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: d02d7d43fd685d5660efed9d9dce354c7717bea8
      https://github.com/Perl/perl5/commit/d02d7d43fd685d5660efed9d9dce354c7717bea8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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

Hex is the more familiar form


  Commit: 52da345b673472da93204e9bbce9fa19a4c1684d
      https://github.com/Perl/perl5/commit/52da345b673472da93204e9bbce9fa19a4c1684d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 00110c73dd8084cfc18787d9dc1830c61d1de070
      https://github.com/Perl/perl5/commit/00110c73dd8084cfc18787d9dc1830c61d1de070
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: e7ad170799a6b9519b755237f6a89b23cd9c3ef1
      https://github.com/Perl/perl5/commit/e7ad170799a6b9519b755237f6a89b23cd9c3ef1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 39b58970b01fc2ce2845c47ad5043895184bac31
      https://github.com/Perl/perl5/commit/39b58970b01fc2ce2845c47ad5043895184bac31
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b083e11b00c2fffccd3b6e0c4d8d634d355ce84d
      https://github.com/Perl/perl5/commit/b083e11b00c2fffccd3b6e0c4d8d634d355ce84d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: c4f080cbc41a8878803508dbacf323d8d6e73e4d
      https://github.com/Perl/perl5/commit/c4f080cbc41a8878803508dbacf323d8d6e73e4d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 297f8b8e22b08cf1657c63509114b6a740a0fa67
      https://github.com/Perl/perl5/commit/297f8b8e22b08cf1657c63509114b6a740a0fa67
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 92368536a3329e7b196967aec02af7c89bb6116a
      https://github.com/Perl/perl5/commit/92368536a3329e7b196967aec02af7c89bb6116a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 2398f29dc787337390eb3469e4e49d42e79223ec
      https://github.com/Perl/perl5/commit/2398f29dc787337390eb3469e4e49d42e79223ec
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c
    M perl.h

  Log Message:
  -----------
  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 setlocalwes 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: 276a55507822d5c324beddc7aed7f5de340ca69d
      https://github.com/Perl/perl5/commit/276a55507822d5c324beddc7aed7f5de340ca69d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M perl.h

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

This simplifies slightly, and will allow further simplification


  Commit: b88266d7c4ebc8af8df96e64b8010c18a14759e9
      https://github.com/Perl/perl5/commit/b88266d7c4ebc8af8df96e64b8010c18a14759e9
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M perl.h

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

To enable future simplifications


  Commit: 1e454e4124468b81f4e20ff7ec9f684877caedf1
      https://github.com/Perl/perl5/commit/1e454e4124468b81f4e20ff7ec9f684877caedf1
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b2378adbabae90aa3fa4ceaea6dff4ab05d8334e
      https://github.com/Perl/perl5/commit/b2378adbabae90aa3fa4ceaea6dff4ab05d8334e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 81853af8b20efa5ccac256c2d75d037fec80bb23
      https://github.com/Perl/perl5/commit/81853af8b20efa5ccac256c2d75d037fec80bb23
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M cygwin/cygwin.c

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


  Commit: 3e6f9de80a2872cd377a771137f8e32829546c17
      https://github.com/Perl/perl5/commit/3e6f9de80a2872cd377a771137f8e32829546c17
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 322c04549a7fb1a06f3cf7966135e49a74d0e150
      https://github.com/Perl/perl5/commit/322c04549a7fb1a06f3cf7966135e49a74d0e150
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M embed.fnc
    M embed.h
    M embedvar.h
    M ext/POSIX/POSIX.xs
    M handy.h
    M inline.h
    M intrpvar.h
    M locale.c
    M makedef.pl
    M perl.c
    M perl.h
    M proto.h
    M sv.c
    M util.c

  Log Message:
  -----------
  Emul


  Commit: 11e8039489840176abe16f16e54c826348efcdd4
      https://github.com/Perl/perl5/commit/11e8039489840176abe16f16e54c826348efcdd4
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M lib/locale_threads.t
    M t/loc_tools.pl

  Log Message:
  -----------
  loc tools after emulation


  Commit: ad61a77d26689aaa1b4ec0eaaab463196cf11256
      https://github.com/Perl/perl5/commit/ad61a77d26689aaa1b4ec0eaaab463196cf11256
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M pp.c

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


  Commit: ed55da3a0ee9cb76edb76c7d9622d3e53adcee20
      https://github.com/Perl/perl5/commit/ed55da3a0ee9cb76edb76c7d9622d3e53adcee20
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  XXX finish fold_locale

tests, copy in thread create


  Commit: fbf2733a30729b898f3426cb133543fdc2e26623
      https://github.com/Perl/perl5/commit/fbf2733a30729b898f3426cb133543fdc2e26623
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M inline.h
    M locale.c

  Log Message:
  -----------
  XXX temp debug? locale.c, inline.h:foldEQ_locale


  Commit: cefd172146b42c8b3a4f2c06cdb3700c17a86765
      https://github.com/Perl/perl5/commit/cefd172146b42c8b3a4f2c06cdb3700c17a86765
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: 666b7090bc067bed71e6f3e693fff7d095b0010e
      https://github.com/Perl/perl5/commit/666b7090bc067bed71e6f3e693fff7d095b0010e
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M locale.c

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


  Commit: caf002f1f3d5fd2c92416162c5ebd68157f72b98
      https://github.com/Perl/perl5/commit/caf002f1f3d5fd2c92416162c5ebd68157f72b98
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: b6fe25c50250d4c904fd0cf31c121a538dae5b8b
      https://github.com/Perl/perl5/commit/b6fe25c50250d4c904fd0cf31c121a538dae5b8b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 2cc641f1606856cb476bbc3c80f6601f17fddad2
      https://github.com/Perl/perl5/commit/2cc641f1606856cb476bbc3c80f6601f17fddad2
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 230c37085461edf63fd89be7de2c3d87aef077a5
      https://github.com/Perl/perl5/commit/230c37085461edf63fd89be7de2c3d87aef077a5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M perl.h

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

So they are closer to related statements


  Commit: d77192450d64d7226bf8190bbe585d60a5229d02
      https://github.com/Perl/perl5/commit/d77192450d64d7226bf8190bbe585d60a5229d02
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 6c7b65ba5a67e723fa740f41b0424172fd01fac5
      https://github.com/Perl/perl5/commit/6c7b65ba5a67e723fa740f41b0424172fd01fac5
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: e225ec70813fa356e09893198d12862c60124d72
      https://github.com/Perl/perl5/commit/e225ec70813fa356e09893198d12862c60124d72
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M pp_sys.c

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


  Commit: 14800328b56aba8b610ee6de9f9e24bfff11e5ae
      https://github.com/Perl/perl5/commit/14800328b56aba8b610ee6de9f9e24bfff11e5ae
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M win32/win32.c

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

These could have races.


  Commit: f5d93c9d6d5a088e311465cf88f5d98b515f51ff
      https://github.com/Perl/perl5/commit/f5d93c9d6d5a088e311465cf88f5d98b515f51ff
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M util.c

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

per the Posix standard


  Commit: b5a3c82964b3217b4d13e5568a26ff12afb40519
      https://github.com/Perl/perl5/commit/b5a3c82964b3217b4d13e5568a26ff12afb40519
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

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


  Commit: 7b017d3b7c5c56d4edaa1f9a6545c76deea9d97a
      https://github.com/Perl/perl5/commit/7b017d3b7c5c56d4edaa1f9a6545c76deea9d97a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M ext/POSIX/POSIX.xs

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


  Commit: a8dfeba34adc44726095952d05fe00f4b0f78dba
      https://github.com/Perl/perl5/commit/a8dfeba34adc44726095952d05fe00f4b0f78dba
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 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: 42543d284c50661bed2725043fc56c0b9b7b8e05
      https://github.com/Perl/perl5/commit/42543d284c50661bed2725043fc56c0b9b7b8e05
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

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


  Commit: 06993d11b87ebf52cd4b0ae7b206fb5171f6d103
      https://github.com/Perl/perl5/commit/06993d11b87ebf52cd4b0ae7b206fb5171f6d103
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  cpan/Time-Piece/Piece.xs: Use foldEQ_locale() if available

Using this is preferable to the glibc function due to it being tailored
for Perl, and is thread-safe in the latest versions.


  Commit: e87077186e2906f0eb62730b6af33165fc753662
      https://github.com/Perl/perl5/commit/e87077186e2906f0eb62730b6af33165fc753662
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  Time-Piece/Piece.xs: Use isDIGIT, not isdigit

isDIGIT is not locale-dependent, matching just [0-9].  There was a bug
using isdigit() in at least one place where it calculated the value of
the digit by subtracting the original of '0' from it.  This works only
if the digit is in [0-9], but there are locales where there is another
set of digits, and so would give a very wrong result.  That makes it
clear to me that only [0-9] were assumed by the original authors.


  Commit: 9cebca1db6c76dafe27c36812ccc25485168264c
      https://github.com/Perl/perl5/commit/9cebca1db6c76dafe27c36812ccc25485168264c
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  XXX Time-Piece/Piece.xs: Use isSPACE not isspace

Same msg as prev commit


  Commit: 24f5ae6ad3b979ef7c068b866dfc48ebf15d5782
      https://github.com/Perl/perl5/commit/24f5ae6ad3b979ef7c068b866dfc48ebf15d5782
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  XXX Time-Piece/Piece.xs: Use isUPPER not isupper

Same msg as prev commit


  Commit: 935b43fda342b7f7a73ea439a88be887652239be
      https://github.com/Perl/perl5/commit/935b43fda342b7f7a73ea439a88be887652239be
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  Time-Piece/Piece.xs: Cleanup missing foldEQ fallback

This changes the code to use foldEQ() if available, and to define foldEQ
in terms of fallbacks if not.  The previous code did not provide a final
fallback.


  Commit: 489036e7961970b893e29ecc6ed5c89cd8c7fe04
      https://github.com/Perl/perl5/commit/489036e7961970b893e29ecc6ed5c89cd8c7fe04
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

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

  Log Message:
  -----------
  more timepiece


  Commit: 76310dadcc5f9cc428b41059b0b41054474833ee
      https://github.com/Perl/perl5/commit/76310dadcc5f9cc428b41059b0b41054474833ee
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M pod/perlhacktips.pod

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


  Commit: af31cd0b09cbae1336a5108c7e28db59fe19c402
      https://github.com/Perl/perl5/commit/af31cd0b09cbae1336a5108c7e28db59fe19c402
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M dist/IO/IO.xs

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


  Commit: dd7c318076e3e58c27aee0ec81800bca2c26a63d
      https://github.com/Perl/perl5/commit/dd7c318076e3e58c27aee0ec81800bca2c26a63d
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M hints/freebsd.sh

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


  Commit: 8a7550204baf43736e38c8333ef855fb6ebd069b
      https://github.com/Perl/perl5/commit/8a7550204baf43736e38c8333ef855fb6ebd069b
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M thread.h

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


  Commit: af64cf0751c0798bf7bffc86f556b110590d2ef8
      https://github.com/Perl/perl5/commit/af64cf0751c0798bf7bffc86f556b110590d2ef8
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M thread.h

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


  Commit: 17184db721ef5ae2dd9a92a22636e9c46edc63db
      https://github.com/Perl/perl5/commit/17184db721ef5ae2dd9a92a22636e9c46edc63db
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M perl.h

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


  Commit: 72e5b7dc82852c68b6e8cd24beedadcd13be7f0a
      https://github.com/Perl/perl5/commit/72e5b7dc82852c68b6e8cd24beedadcd13be7f0a
  Author: Karl Williamson <khw@cpan.org>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M handy.h
    M iperlsys.h
    M locale.c
    M perl.h
    M regen/reentr.pl
    M regexec.c
    M util.c

  Log Message:
  -----------
  Notes


Compare: https://github.com/Perl/perl5/compare/1b091d66b693...72e5b7dc8285



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