Re: Mac OS X Prompt Bug

[Sorin Ionescu <sorin.ionescu@xxxxxxxxx>]

Yes, iTerm2 does not have this problem. While unsetopt PROMPT_SP removes the %, the blank lines are still echoed. The easiest way to test this is to touch ~/.hushlogin and open Terminal.app. Notice the scrollbar.

So, PROMPT_SP is definitely not the problem. It seems the prompt is being pushed down by the blank lines. Hence why % is not being overwritten by the prompt in the screenshot.

On 24 Nov 2010, at 10:30, Vincent Lefevre wrote:

> Hi,
> 
> On 2010-11-24 08:58:26 -0500, Sorin Ionescu wrote:
>> Please have a look at the screenshot at
>> http://i.imgur.com/huNpI.jpg. Otherwise, the following text may not
>> make sense.
>> 
>> A % character appears before every prompt then it is replaced by the
>> prompt;
> 
> This is a very useful feature (which can be disabled), to know when
> some output hasn't been followed by a newline character, e.g. try
> 
>  echo -n foo
> 
> Other shells do not do this, hence the difference.
> 
>> so, it only flashes for a fraction of a second. However, if
>> the buffer is empty when ZSH starts, such as when one has a
>> ~/.hushlogin file, it results in the behaviour in the screenshot,
>> which is % character followed by blank lines.
> 
> I don't have such a problem under Mac OS X (using iTerm, but I hadn't
> noticed it with Terminal either in the past). This may come from the
> terminal (a bug?) or its configuration.
> 
> -- 
> Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
> Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)