Is this a bug?

%% fn foo { echo $bar }
%% bar=baz foo

%%

I would expect to see baz instead of a blank line.

Micah

looks like a bug to me; after all:

%% bar=baz {echo $bar}
baz
%%

i'm somewhat surprised this hasn't been fixed years ago.

On Wed, Aug 13, 2008 at 10:27 PM, Micah Stetson stetsonnet.org> wrote:

if you want to delay the expansion of an env var until fn invocation,,use eval.

%% fn foo {eval echo $$bar}

On Thu, Aug 14, 2008 at 12:20 PM, kazumi iwane gmail.com> wrote:

sorry, but that's so, so wrong.

1) $$bar gives the value of the variable
named by the contents of the variable bar,
so that the above, given that $bar contains 'baz'
will echo $baz.

2) $$bar above is evaluated _before_ eval is invoked,
so the line is not very different from {echo $$bar}, except that
if $$bar holds any syntax characters they'll get interpreted by the shell.
it's almost never necessary to use eval with rc.

i apologize for the noise. i should have tested befoqe posting.
rog, thank you for correcting me.

On 8/14/08, roger peppe gmail.com> wrote: