Support for leftmost-shortest matches in EREs in POSIX-2024

[Ed Morton]

    I asked in the bug-gawk mailing list (see
    https://lists.gnu.org/archive/html/bug-gawk/2024-08/msg00026.html)
    if/when GNU awk would support the `.*?` ERE construct described in
    the latest POSIX spec
(https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/V1_chap09.html#tag_09_04_06)
    as:
    
    ----
    Each of the duplication symbols ('+', '*', '?', and intervals) can
    be suffixed by the repetition modifier '?' (<question-mark>),
    in which case matching behavior for that repetition shall be changed
    from the leftmost longest possible match to the leftmost shortest
    possible match, including the null match (see A.9 Regular
    Expressions ). For example, the ERE ".*c" matches up to and
    including the last character ('c') in the string "abc abc", whereas
    the ERE ".*?c" matches up to and including the first character 'c',
    the third character in the string.
    ----
    
    and was told:
    
    ----
    Support for this feature can't happen unless and until GNU regex and
    GNU dfa, which are both part of Gnulib, support it. So you might
    consider asking on the bug-gnulib list what their plans are for it.
    ----
    
    so - what are the plans, if any, for supporting that functionality?
    
    Regards,
    
        Ed Morton