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Re: another problem with bash PS1 handling


From: Chet Ramey
Subject: Re: another problem with bash PS1 handling
Date: Mon, 19 Oct 2009 12:13:30 -0400
User-agent: Thunderbird 2.0.0.23 (Macintosh/20090812)

> Whether POSIX applies or not, from a logical standpoint history number
> and custom bash escape expansion should be last, after parameter
> expansion and command substitution because doing it first breaks
> command substitution (see my earlier post) or using variables in a
> prompt (a='!'; PS1='$a ' will result in a literal "!" rather than the
> history number), it is unintuitive and deviates from the behavior of
> other shells such as variants of ash and ksh.

I disagree.  I don't see a compelling reason to change 20 years of
behavior here.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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