Re: Bizarre behavior of \w in a regular expression bracket construct

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>

To: "Joel Jacobson" <joel@compiler.org>

Cc: "Alvaro Herrera" <alvherre@alvh.no-ip.org>, pgsql-hackers@lists.postgresql.org

Date: 2021-02-24T17:14:47Z

Lists: pgsql-hackers

Attachments

0001-rework-char-class-escapes-2.patch (text/x-diff) patch 0001
0002-DW-always-match-newline.patch (text/x-diff) patch 0002

I wrote:
> I've also decided after reflection that the patch should indeed
> create a named "word" character class.  That's allowed per POSIX,
> and it simplifies some aspects of the documentation, since we can
> rely on referencing the class instead of repeating ourselves.
> The attached 0001 v2 does that; it's otherwise the same as before.

Sigh, this time with the attachments ...

			regards, tom lane

Commits

Doc: remove src/backend/regex/re_syntax.n.
- 301ed8812e3f 14.0 landed
Change regex \D and \W shorthands to always match newlines.
- 7dc13a0f0805 14.0 landed
Allow complemented character class escapes within regex brackets.
- 2a0af7fe460e 14.0 landed