bug#57787: closed (29.0.50; [PATCH] When using $VAL[INDEX] in Eshell, allow symbols as the index)

[GNU bug Tracking System]

Your message dated Wed, 14 Sep 2022 17:32:32 -0700
with message-id <5bbf0f33-3643-9103-782d-e489bc98d63a@gmail.com>
and subject line Re: bug#57787: 29.0.50; [PATCH] When using $VAL[INDEX] in 
Eshell, allow symbols as the index
has caused the debbugs.gnu.org bug report #57787,
regarding 29.0.50; [PATCH] When using $VAL[INDEX] in Eshell, allow symbols as 
the index
to be marked as done.

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57787: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=57787
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--- Begin Message --- Subject: 29.0.50; [PATCH] When using $VAL[INDEX] in Eshell, allow symbols as the index Date: Tue, 13 Sep 2022 16:23:26 -0700 Eshell variable expansions let you use strings as indices, which will treat the outer value as an alist. For example:

  (setq foo '(("a" . 1) ("b" . 2)))
  M-x eshell
  ~ $ echo $foo[a]
  1

However, if the keys in the alist are symbols, that doesn't work:

  (setq foo '((a . 1) (b . 2)))
  M-x eshell
  ~ $ echo $foo[a]
  ;; no output

Attached is a patch to fix this. Now, in the latter case, you'd type:

  ~ $ echo $foo[#'a]
  ;; or
  ~ $ echo $foo[`a]

(Note: "#'a" looks like a sharp quote to denote a function, but the # is just Eshell's way of escaping the following single-quote. A bare single-quote is the start of a string literal in Eshell.)

0001-Allow-using-a-symbol-as-an-index-into-an-alist-in-Es.patch
Description: Text document

--- End Message ---

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> Subject: 
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> Re: bug#57787: 29.0.50; [PATCH] When using $VAL[INDEX] in Eshell, allow symbols as the index
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> Date: 
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> Wed, 14 Sep 2022 17:32:32 -0700
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> On 9/14/2022 7:14 AM, Lars Ingebrigtsen wrote:
> > Makes sense to me.
>
> Thanks for taking a look. Merged as 
> b8e9239b47391c6628d94a4e2e91320c5366d27b.
>
>
> --- End Message ---