Colon modifiers on history substitution

Colon modifiers on history substitution

[Vinnie Shelton]

:p no longer works after a ^ substitution, to wit:

spacely% echo $ZSH_VERSION
2.6-beta11
spacely% ^VER^VER^
echo $ZSH_VERSION                 # OK so far
2.6-beta11
spacely% ^VER^VER^:p
echo $ZSH_VERSION:p               # Used to say what it would do
2.6-beta11:p                      # ... not anymore

Solaris 2.3 and SunOS4.1.3_U1, in case that matters.

Re: Colon modifiers on history substitution

[Barton E. Schaefer]

On Nov 9,  9:21am, Vinnie Shelton wrote:
} Subject: Colon modifiers on history substitution
}
} :p no longer works after a ^ substitution

This was never supposed to work -- you're using an undocumented side-
effect of the way that Paul F. originally implemented ^ substitution.

Now that history substitutions no longer rely on rewriting the parser
input, the side-effect has gone away.

-- 
Bart Schaefer                     Vice President, Technology, Z-Code Software
schaefer@z-code.com                  Division of NCD Software Corporation
http://www.well.com/www/barts

Re: Colon modifiers on history substitution

[Vinnie Shelton]

In message <951109093526.ZM24995@zyrcon.z-code.com>, Barton E. Schaefer wrote:
>On Nov 9,  9:21am, Vinnie Shelton wrote:
>} Subject: Colon modifiers on history substitution
>}
>} :p no longer works after a ^ substitution
>
>This was never supposed to work -- you're using an undocumented side-
>effect of the way that Paul F. originally implemented ^ substitution.
>
>Now that history substitutions no longer rely on rewriting the parser
>input, the side-effect has gone away.

It's just my week to trip over ghosts, I guess.

Since it works in csh, I always assumed this was an officially
sanctioned "good thing".  I'd prefer that zsh follow csh on this,
but it's not worth a significant effort, IMO.

Hmm, I was about to ask what I could do instead - presto - expansion
almost works:

% echo aacd
aacd
^aa^ab<TAB>
results in:
echo ab cd

If we could get rid of that extra space, that would be cool!

--Vin