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Re: The builtin array variable 'FUNCNAME' is considered unset by many expansions, even when set.

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  Re: The builtin array variable 'FUNCNAME' is considered unset by many expansions, even when set. Great Big Dot <greatbigdot@gmail.com> - 2018-11-08 10:28 -0500

#14779 — Re: The builtin array variable 'FUNCNAME' is considered unset by many expansions, even when set.

> It should expand to the empty string in all these cases.

Oh yeah, right, because a function isn't even running. Duh. All my comments
about expected behavior should be inverted, then, I guess. Out of
curiosity, do you have any idea what's causing bash to *sometimes*
correctly conclude that FUNCNAME[0] is empty and other times that
FUNCNAME[*] is empty, under seemingly arbitrary circumstances? I can't
figure out what could be causing that.

On Thu, Nov 8, 2018 at 9:57 AM Chet Ramey <chet.ramey@case.edu> wrote:

> On 11/8/18 1:15 AM, Great Big Dot wrote:
>
> > Bash Version: 4.4
> > Patch Level: 23
> > Release Status: release
> >
> > Description:
> > The builtin array variable FUNCNAME (which provides a way to trace the
> > stack of functions called so far) appears to be unset according to
> certain
> > bash expansions, even when it isn't. If the following code is saved to a
> > file and executed (this doesn't work at the command line), the problems
> > begin to appear:
> >
> >     printf -- '%q\n' "${FUNCNAME}"
> >     printf -- '%q\n' "${FUNCNAME[0]}"
> >     printf -- '%q\n' "${FUNCNAME[*]}"
>
> Thanks for the report. It should expand to the empty string in all these
> cases.
>
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>                  ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/
>

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