* zsh weird behaviour (possibly bug?)
@ 2007-07-02 3:32 Janos Barbero
2007-07-02 9:29 ` Peter Stephenson
0 siblings, 1 reply; 4+ messages in thread
From: Janos Barbero @ 2007-07-02 3:32 UTC (permalink / raw)
To: zsh-workers
Hi,
I often notice that complex shell commands (usually with 5-10 pipes
and plenty of awk/sed) produce no output in zsh, but work fine in
bash. I found a really simple one today.
ls | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g'
This produces no output in zsh, but does in any bash version. Further
investigation revealed this to be due to my precmd's/postcmd's. So
some more data:
1: precmd () { print -Pn "\ek%n@%m %~$ \e\\" }
2: preexec() { print -Pn "\ek%n@%m %~$ $1\e\\" }
3: precmd () { print -Pn "\ek%~\e\\" }
4: preexec() { print -Pn "\ek%~ $1\e\\" }
If I have only line 4, command doesn't return (I have to manually kill
the window), but plain ls works. If I leave lines 3 and 4, no output.
Leaving either or both lines 1 and 2, it works fine. (I tried these
with nothing else in my .zshrc.)
Is the problem with my precmd/postcmd 3 and 4, or is this a zsh bug?
Sorry if this is sent out to the wrong list, I understood this is
where to file zsh bugs.
Thanks,
~Janos
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: zsh weird behaviour (possibly bug?)
2007-07-02 3:32 zsh weird behaviour (possibly bug?) Janos Barbero
@ 2007-07-02 9:29 ` Peter Stephenson
[not found] ` <77d935a0707020917o244fc086k72a679839d4f256b@mail.gmail.com>
0 siblings, 1 reply; 4+ messages in thread
From: Peter Stephenson @ 2007-07-02 9:29 UTC (permalink / raw)
To: zsh-workers, Janos Barbero
"Janos Barbero" wrote:
> I often notice that complex shell commands (usually with 5-10 pipes
> and plenty of awk/sed) produce no output in zsh, but work fine in
> bash. I found a really simple one today.
> ls | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g'
> This produces no output in zsh, but does in any bash version. Further
> investigation revealed this to be due to my precmd's/postcmd's. So
> some more data:
> 1: precmd () { print -Pn "\ek%n@%m %~$ \e\\" }
> 2: preexec() { print -Pn "\ek%n@%m %~$ $1\e\\" }
> 3: precmd () { print -Pn "\ek%~\e\\" }
> 4: preexec() { print -Pn "\ek%~ $1\e\\" }
>
> If I have only line 4, command doesn't return (I have to manually kill
> the window), but plain ls works. If I leave lines 3 and 4, no output.
> Leaving either or both lines 1 and 2, it works fine. (I tried these
> with nothing else in my .zshrc.)
>
> Is the problem with my precmd/postcmd 3 and 4, or is this a zsh bug?
It's hard to tell, but we can certainly say it's got *something* to do
with the way your terminal behaves. I don't recognise those escape
sequences, but the fact that changing them makes a difference suggests
the terminal is doing something weird with the output.
You didn't say what system you're on: if it's a MAC, somebody reported a
similar problem recently. See the thread at
http://www.zsh.org/cgi-bin/mla/redirect?WORKERNUMBER=23429
--
Peter Stephenson <pws@csr.com> Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-07-02 16:51 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-07-02 3:32 zsh weird behaviour (possibly bug?) Janos Barbero
2007-07-02 9:29 ` Peter Stephenson
[not found] ` <77d935a0707020917o244fc086k72a679839d4f256b@mail.gmail.com>
2007-07-02 16:40 ` Peter Stephenson
2007-07-02 16:50 ` Peter Stephenson
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