Re: Setting the terminal title: problem with percent signs

[Guillaume Brunerie <guillaume.brunerie@gmail.com>]

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2010/8/19 Mikael Magnusson <mikachu@gmail.com>

> On 19 August 2010 16:26, Guillaume Brunerie
> <guillaume.brunerie@gmail.com> wrote:
> > Hi,
> >
> > I have the following in my .zshrc which set the terminal title to "*cmd"
> > when cmd is executed and to "(cmd)" when execution of cmd is over.
> >
> > __last_cmd=
> > preexec () {
> >    __last_cmd=$1
> >    print -Pn "\e]0;*$__last_cmd\a"
> > }
> > precmd () {
> >    if [[ -n $__last_cmd ]]
> >    then
> >        print -Pn "\e]0;($__last_cmd)\a"
> >    fi
> > }
> >
> >
> > (print -Pn "\e]0;$str\a"  change the terminal title to $str, see 'man
> > console_codes')
> > It works well, except when there are percent signs in the last command.
> > For example if I type "echo 100%", the terminal title becomes "(echo
> 100)"
> > instead of "(echo 100%)" and the string " ]0;*echo 100100%" appears in
> the
> > terminal.
> >
> > How can I do to make it work even with percent signs in the command?
>
> Don't use -P for print, in fact, don't use print at all, since it will
> mess up if you use a \ in the command too. printf '\e]0;%s\a' $str
> should work better, it won't expand anything in $str at all. If you
> have literal escape characters in your command it will still mess up,
> you can use ${(V)str} in that case.
>
> --
> Mikael Magnusson
>

Yes, I don't know why I had the -P option for print but after reading the
man page it was indeed stupid.
It works very good with printf, thank you :-)


Guillaume Brunerie