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Re: Prompt issue within cygwin

On Mon, 23 Jan 2006 15:18:20 -0800, Igor Peshansky wrote:

On Mon, 23 Jan 2006, Zach Gelnett wrote:

On 1/23/06, Zach Gelnett <zachg99@XXXXX.XXX> wrote:
> On 1/23/06, Igor Peshansky <pechtcha@XX.XXX.XXX> wrote:

Again, <>. Let's not feed the spammers.

I do have one final question.

If I set PS1 like this:

PS1="\[\033]61;\w\007\]\u@\h:\w\\$ "

Everything works great, no issues at all, what is expected is what is

Now, when i make only a slight modification as such:

PS1="\[\033]61;\u@\H\007\]\u@\h:\w\\$ "

all the sudden i have a duplicate space after my prompt as in:

v468929@TRD-CAX40JXD:~$ ls db2Mgr.

that goes away when i hit the tab complete button to show me my options:

v468929@TRD-CAX40JXD:~$  ls db2Mgr.
db2Mgr.C  db2Mgr.h
v468929@TRD-CAX40JXD:~$ ls db2Mgr.

I'm trying to get this prompt to work:

PS1="\[\033]61;\u@\H\007\]\u@\H \W>"

but the issue there is that the > is duplicated (just like the space
above, but much more noticable).  Any ideas as to why making the title
modification to use \u@\H instead of \w is causing these issues?

There is a prompt bug in bash that causes it to miscount the number of displayed characters. One workaround was to append '\[\]' to PS1. Also, a good habit to get into is to use single quotes in the shell when some value contains backslashes.

However, I can't reproduce your problem on my system (I only see one '>'
with the above PS1 setting).  I don't believe you've posted the
information requested in the problem reporting guidelines at
<> in this thread...  Please attach the
output of "cygcheck -svr" so that we can find out, among other things,
what version of bash you are using, as well as what else is different in
our setups.

This appears to be a regression in version 5.1-1 of libreadline6. Based on past discussion of how to work around the prompt issue, I use the following bash prompt (with rxvt):

PS1='\[\e]0;${WINDOW_TITLE}\u@\h \w\a\]\u@\h\$ \[\]'

With version 5.0-4 of libreadline6, I get one space at the end of my initial prompt. With version 5.1-1 of libreadline6, I get two spaces at the end of my initial prompt. Both versions of libreadline6 duplicate the last character on the line under some circumstances when I use control-L to refresh the screen. I have attached the requested cygcheck output with each version of the library installed.


Attachment: cygcheck-old.log
Description: Binary data

Attachment: cygcheck-new.log
Description: Binary data

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