zsh as ksh in 5.3

[William H. Magill]

The issue WAS with zsh. The response to my query from zsh-users ...

On 08 Jan, 2005, at 11:24, Peter Stephenson wrote:
> "William H. Magill" wrote:
>> I have a two-line prompt string
>>
>> PS1='[$PWD] $me
>>   $HOST> '
>>
>> I have been using this for many years. It works fine under ksh on 
>> Tru64
>> Unix 5.1 and when zsh 4.2.1 itself is evoked as the login shell.
>>
>> However, if I change the /etc/password entry to evoke ksh instead of
>> zsh, the newline is lost, resulting in a prompt consisting of "$HOST> 
>> "
>
> I think you're saying that ksh is really a link to zsh.  In that case
> zsh will start up with a different set of options.  Probably the
> critical one in this case is single_line_zle.  Try "unsetopt
> single_line_zle" and see if that works.  (If my experiment is correct
> this is exactly the problem.)
>
> The option isn't there for the prompt, in fact, it's there because ksh
> doesn't handle multiple line editing buffers.  It so happens that in 
> zsh
> this is associated with a multi-line prompt.  However, it's not at all
> clear we really need to enforce this restriction of ksh when emulating
> it anyway.  It's hard to think of a case where it's an advantage.
>
> -- 
> Peter Stephenson <pws at pwstephenson.fsnet.co.uk>
> Work: pws at csr.com
> Web: http://www.pwstephenson.fsnet.co.uk
>
T.T.F.N.
William H. Magill
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