On Thursday, April 13, 2023 10:36:08 PM Greg Wooledge wrote:
> Anyway, here's the POSIX documentation section:
>
> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#t
> ag_18_13
>
> And the relevant piece of text:
>
> [ If an open bracket introduces a bracket expression as in XBD RE
> Bracket Expression, except that the <exclamation-mark> character
> ( '!' ) shall replace the <circumflex> character ( '^' ) in its
> role in a non-matching list in the regular expression notation, it
> shall introduce a pattern bracket expression. A bracket expression
> starting with an unquoted <circumflex> character produces unspecified
> results. Otherwise, '[' shall match the character itself.
Wow -- I thought this was an English language list :-(
But seriously, that seems very hard to interpret / understand.
--
rhk
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