src/lib/libregex, branch releng/13.3

Remove $FreeBSD$: one-line sh pattern

2023-08-23T17:43:30Z

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ Similar commit in main: (cherry picked from commit d0b2dbfa0ecf)

Remove $FreeBSD$: one-line .h pattern

2023-08-23T17:43:22Z

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/ Similar commit in main: (cherry picked from commit 42b388439bd3)

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-07-25T15:13:49Z

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix (cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)

pkgbase: Put more binaries/lib in runtime

2022-01-05T17:23:51Z

Move some needed binaries/libs from FreeBSD-utilities to FreeBSD_runtime. This is everything needed to boot to multiuser with FreeBSD-rc installed. MFC after: 2 weeks Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D33435 (cherry picked from commit 93c43690960274dd3bb67b1ee0f1dd3ca4d13def)

pkgbase: Remove FreeBSD-libregex package

2022-01-05T17:23:49Z

The only user of libregex is grep (and its variation), no need for a dedicated package. This moves libregex to the default package (FreeBSD-utilities). Differential Revision: https://reviews.freebsd.org/D31802 (cherry picked from commit dfa9131d709121b2e502a82ff66cf3e376654942)

libregex: re-enable `make check`

2021-01-08T19:58:35Z

The tests are generally expected to pass, uncomment the annotation that lets `make check` work. Note that `make check` currently requires kyua from ports or an appropriate symlink into /usr/local/bin.

libregex: implement \b and \B (word boundary, not word boundary)

2020-12-05T03:16:05Z

This is the last of the needed GNU expressions before we can unleash bsdgrep by default. \b is effectively an agnostic equivalent of \< and \>, while \B will match every space that isn't making a transition from nonchar -> char or char -> nonchar.

libregex: implement \` and \' (begin-of-subj, end-of-subj)

2020-12-05T03:13:47Z

These are GNU extensions, generally equivalent to ^ and $ except that the new syntax will not match beginning of line after the first in a multi-line expression or the end of line before absolute last in a multi-line expression.

libregex: disable some of the unimplemented test cases for now

2020-08-04T02:16:43Z

This should allow the tests to actually pass. Future work will uncomment the unimplemented tests as they're implemented.

Further normalize copyright notices

2019-09-26T16:19:22Z