Thanks for the information. Alas, I don't believe this is does what is
needed.

Here is output from no subshell nesting, one subshell, and then two:

$ for i in 1; do if [[ x == x ]]; then print -P %_ ; fi; done
for then
$ (for i in 1; do if [[ x == x ]]; then print -P %_ ; fi; done)
for then
$ ( (for i in 1; do if [[ x == x ]]; then print -P %_ ; fi; done) )
for then

In all cases I get the same output with no indication in the last two cases
that they are inside one or two subshells.



On Fri, Sep 5, 2008 at 3:49 PM, Phil Pennock <
zsh-workers+phil.pennock@spodhuis.org<zsh-workers%2Bphil.pennock@spodhuis.org>
> wrote:

> On 2008-09-05 at 10:11 -0400, Rocky Bernstein wrote:
> > It would be great if there were a way to get the subshell level nesting.
> ksh
> > uses .sh.level and bash BASH_SUBSHELL.
>
> I don't think zsh has that directly as a variable, but it does have %_
> for prompt substitution, producing on stdout a list of words identifying
> the nested parser states.  It's output text, not a data structure
> internal to the shell (so not an array).
>
> zsh% for i in 1; do if [[ x == x ]]; then print -P %_ ; fi; done
> for then
> zsh%
>
> Of course, capturing that in $(...) will add a cmdsubst to the end.
>
> -Phil
>