[Bash-completion-devel] [SCM] bash-completion branch, master, updated. 1.90-47-g068a1a1

[Ville Skyttä]

On 11/17/2011 01:42 AM, Igor Murzov wrote:

> It turns out that without inner quotes bash converts "\ " to " " and this breaks things. Looks like it's better to use inner quotes everywhere for such expressions.

Yuck :(

>> BTW, I suppose the outer quotes are unnecessary, is that incorrect?
> 
> Outer quotes are still necessary, they apply to a result, and inner quotes to an argument.

Sure, but I still don't know of a case where they would be necessary.
For example, using your previous example values and assignments:

$ set -x
$ x="a\ b c\ d e\ f"
+ x='a\ b c\ d e\ f'
$ y="a\ b"
+ y='a\ b'

Now, with outer quotes:

$ z="${x#"$y"}"
+ z=' c\ d e\ f'

...and without them:

$ z=${x#"$y"}
+ z=' c\ d e\ f'

No difference there...