On Sun, Jan 29, 2006 at 07:33:14PM -0500, Chris F.A. Johnson wrote:
> On Sun, 29 Jan 2006, William Park wrote:
> >Let's see...
> > a-{b{d,e}}-c
> > a-{bd,be}-c
> > a-bd-c a-be-c
> >
> >It looks okey, I think.
>
> Except that b{d,e} expands to 'bd be', not 'bd,be'.
Hmm... no. Internally, {d,e} gets converted to array of 2 strings, ie.
array[0] = "d";
array[1] = "e";
Then, prefix and suffix are attached. So, when prefix 'b' is attached,
you have
array[0] = "bd";
array[1] = "be";
This continues recursively (left to right, I believe).
When you attach the second prefix 'a-' and suffix '-c', the results are
array[0] = "a-bd-c";
array[1] = "a-be-c";
Now, you can argue that suffix/prefix are 'a-{' and '}-c', in which
case, you get
array[0] = "a-{bd}-c";
array[1] = "a-{be}-c";
I think, it's matter of taste. :-)
--
William Park <[EMAIL PROTECTED]>, Toronto, Canada
ThinFlash: Linux thin-client on USB key (flash) drive
http://home.eol.ca/~parkw/thinflash.html
BashDiff: Super Bash shell
http://freshmeat.net/projects/bashdiff/
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