On 2019-Nov-13, David Fetter wrote: > On Wed, Nov 13, 2019 at 09:47:01AM -0500, Tom Lane wrote:
> > > How about a circumfix directive (like the existing %[ ... %]) > > > that replaces everything inside with whitespace, but keeps the width? > > > > Or just define %w as meaning "whitespace of the same width as > > PROMPT1". You couldn't use it *in* PROMPT1, then, but I see > > no use-case for that anyway. > > +1 for doing it this way. Would it make more sense to error out if > somebody tried to set that in PROMPT1, or ignore it, or...? This seems way too specific to me. I like the "circumfix" directive better, because it allows one to do more things. I don't have any immediate use for it, but it doesn't seem completely far-fetched that there are some. BTW the psql manual says that %[ and %] were plagiarized from tcsh, but that's a lie: tcsh does not contain such a feature. Bash does, however. (I guess not many people read the tcsh manual.) Neither bash nor tcsh have a feature to return whitespace of anything; we're in a green field here ISTM. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
