Merge one true awk from 2024-01-22 for the Awk Second Edition support

This brings in Unicode support, CSV support and a number of bug fixes.
They are described in _The AWK Programming Language_, Second Edition, by
Al Aho, Brian Kernighan, and Peter Weinberger (Addison-Wesley, 2024,
ISBN-13 978-0138269722, ISBN-10 0138269726).

Sponsored by: Netflix

Revert "awk: Merge upstream 2nd Edition Awk Book"

The pre-push testing I did turned out to be testing the old version with
the old testsuite (for reasons I don't understnad). There's issues with
the new version, the new test in the suite or (likely) both. Revert
until they can be chased down.

This should also fix the github CI that's gone red since this commit.

This reverts commit 3fd60a6b73ac01a72df89751f173970fae4cae73, reversing
changes made to 194df014feebd8b169b41ecd75ae73d63a792d6b.

Sponsored by: Netflix

awk: Merge upstream 2nd Edition Awk Book

Merge in the November 2nd, 2023 version of one true awk.

This brings in Unicode support, CSV support and a number of bug fixes.

Sponsored by: Netflix
Reviewed by: delphij
Differential Revision: https://reviews.freebsd.org/D42447

awk: Merge 20210729 from One True Awk upstream (0592de4a)

July 27, 2021:
As per IEEE Std 1003.1-2008, -F "str" is now consistent with
-v FS="str" when str is null. Thanks to Warner Losh.

July 24, 2021:
Fix readrec's definition of a record. This fixes an issue
with NetBSD's RS regular expression support that can cause
an infinite read loop. Thanks to Miguel Pineiro Jr.

Fix regular expression RS ^-anchoring. RS ^-anchoring needs to
know if it is reading the first record of a file. This change
restores a missing line that was overlooked when porting NetBSD's
RS regex functionality. Thanks to Miguel Pineiro Jr.

Fix size computation in replace_repeat() for special case
REPEAT_WITH_Q. Thanks to Todd C. Miller.

Also, included the tests from upstream, though they aren't yet connected
to the tree.

Sponsored by: Netflix

Revert "awk: Merge upstream 2nd Edition Awk Book"

The pre-push testing I did turned out to be testing the old version with
the old testsuite (for reasons I don't understnad). There's issues with
the new version, the new test in the suite or (likely) both. Revert
until they can be chased down.

This should also fix the github CI that's gone red since this commit.

This reverts commit 3fd60a6b73ac01a72df89751f173970fae4cae73, reversing
changes made to 194df014feebd8b169b41ecd75ae73d63a792d6b.

Sponsored by: Netflix

awk: Merge upstream 2nd Edition Awk Book

Merge in the November 2nd, 2023 version of one true awk.

This brings in Unicode support, CSV support and a number of bug fixes.

Sponsored by: Netflix
Reviewed by: delphij
Differential Revision: https://reviews.freebsd.org/D42447

awk: Merge 20210729 from One True Awk upstream (0592de4a)

July 27, 2021:
As per IEEE Std 1003.1-2008, -F "str" is now consistent with
-v FS="str" when str is null. Thanks to Warner Losh.

July 24, 2021:
Fix readrec's definition of a record. This fixes an issue
with NetBSD's RS regular expression support that can cause
an infinite read loop. Thanks to Miguel Pineiro Jr.

Fix regular expression RS ^-anchoring. RS ^-anchoring needs to
know if it is reading the first record of a file. This change
restores a missing line that was overlooked when porting NetBSD's
RS regex functionality. Thanks to Miguel Pineiro Jr.

Fix size computation in replace_repeat() for special case
REPEAT_WITH_Q. Thanks to Todd C. Miller.

Also, included the tests from upstream, though they aren't yet connected
to the tree.

Sponsored by: Netflix

awk: Merge 20210729 from One True Awk upstream (0592de4a)

July 27, 2021:
As per IEEE Std 1003.1-2008, -F "str" is now consistent with
-v FS="str" when str is null. Thanks to Warner Losh.

July 24, 2021:
Fix readrec's definition of a record. This fixes an issue
with NetBSD's RS regular expression support that can cause
an infinite read loop. Thanks to Miguel Pineiro Jr.

Fix regular expression RS ^-anchoring. RS ^-anchoring needs to
know if it is reading the first record of a file. This change
restores a missing line that was overlooked when porting NetBSD's
RS regex functionality. Thanks to Miguel Pineiro Jr.

Fix size computation in replace_repeat() for special case
REPEAT_WITH_Q. Thanks to Todd C. Miller.

Also, included the tests from upstream, though they aren't yet connected
to the tree.

Sponsored by: Netflix