On Thursday 13 August 2009 09:04:32 Greg Wooledge wrote:
> On Thu, Aug 13, 2009 at 02:45:51AM -0400, Mike Frysinger wrote:
> > i dont think word expansion occurs first, otherwise wouldnt this break:
> > foo() {
> > unset b c
> > f="a b="
> > local a=$f c=
>
> As I understand it, this is what happens:
>
> 1) The parser separates out the tokens that constitute the command. These
> are `local', `a=$f', and `c='. The meaning of each token is determined.
>
> 2) Parameter expansion is performed on the $f. But this can't create a
> new token. It's too late for that. The whitespace becomes part of
> the second token. (If you wanted a new token, you'd have to use eval.)
>
> 3) The `local' command is actually executed, performing the assignments,
> and returning its own exit status.right, but i didnt think these were word expansions. that's all my point was. -mike
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