* bug#51312: 29.0.50; Indenting vectors with leading spaces errors out
@ 2021-10-21 3:03 Lars Ingebrigtsen
2021-10-21 4:59 ` bug#51312: [External] : " Drew Adams
2021-10-21 9:06 ` martin rudalics
0 siblings, 2 replies; 5+ messages in thread
From: Lars Ingebrigtsen @ 2021-10-21 3:03 UTC (permalink / raw)
To: 51312
Trying to use the newish space-after-parenthesis syntax errors out when
you hit tab on the second line:
[ :foo :zot
:bar]
forward-sexp: Scan error: "Containing expression ends prematurely", 1, 1
In GNU Emacs 29.0.50 (build 39, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.16.0)
of 2021-10-20 built on elva
Repository revision: 62591c164cd6d0b0555e11b160ffa81bd3bb010f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12011000
System Description: Debian GNU/Linux bookworm/sid
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 5+ messages in thread* bug#51312: [External] : bug#51312: 29.0.50; Indenting vectors with leading spaces errors out
2021-10-21 3:03 bug#51312: 29.0.50; Indenting vectors with leading spaces errors out Lars Ingebrigtsen
@ 2021-10-21 4:59 ` Drew Adams
2021-10-21 9:06 ` martin rudalics
1 sibling, 0 replies; 5+ messages in thread
From: Drew Adams @ 2021-10-21 4:59 UTC (permalink / raw)
To: Lars Ingebrigtsen, 51312@debbugs.gnu.org
> Trying to use the newish space-after-parenthesis syntax...
Newish? Or "some time back", as you said in emacs-devel?
Where is that convention documented? Is it in
(elisp) Coding Conventions perhaps? I don't have
Emacs 28, and I don't see it there in 27.2.
The only thing about parens I see in that node is
this, which really was established some time back:
"Don't make a habit of putting close-parentheses
on lines by themselves; Lisp programmers find
this disconcerting."
FWIW, I'd guess that Lisp programmers might find
your newish convention disconcerting. Is there
a community of them that use it, or is it just a
newish eureka someone had?
If the aim is just to work around poor indentation
then I'd say it's the wrong solution for that.
If the aim is just to indicate that the sexp isn't
evaluated (it's "data") then the quote or backquote
does that, no? Doesn't seem very lispy, to me.
Just one somewhat disconcerted Lisp programmer.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#51312: 29.0.50; Indenting vectors with leading spaces errors out
2021-10-21 3:03 bug#51312: 29.0.50; Indenting vectors with leading spaces errors out Lars Ingebrigtsen
2021-10-21 4:59 ` bug#51312: [External] : " Drew Adams
@ 2021-10-21 9:06 ` martin rudalics
2021-10-21 13:09 ` Lars Ingebrigtsen
1 sibling, 1 reply; 5+ messages in thread
From: martin rudalics @ 2021-10-21 9:06 UTC (permalink / raw)
To: Lars Ingebrigtsen, 51312
[-- Attachment #1: Type: text/plain, Size: 272 bytes --]
> Trying to use the newish space-after-parenthesis syntax errors out when
> you hit tab on the second line:
>
> [ :foo :zot
> :bar]
>
> forward-sexp: Scan error: "Containing expression ends prematurely", 1, 1
Can you try the attached patch?
Thanks, martin
[-- Attachment #2: lisp-mode.el.diff --]
[-- Type: text/x-patch, Size: 1078 bytes --]
--- a/lisp/emacs-lisp/lisp-mode.el
+++ b/lisp/emacs-lisp/lisp-mode.el
@@ -1078,10 +1078,11 @@ calculate-lisp-indent
;; Handle prefix characters and whitespace
;; following an open paren. (Bug#1012)
(backward-prefix-chars)
- (while (not (or (looking-back "^[ \t]*\\|([ \t]+"
- (line-beginning-position))
- (and containing-sexp
- (>= (1+ containing-sexp) (point)))))
+ (while (not (save-excursion
+ (skip-chars-backward " \t")
+ (or (= (point) (line-beginning-position))
+ (and containing-sexp
+ (= (point) (1+ containing-sexp))))))
(forward-sexp -1)
(backward-prefix-chars))
(setq calculate-lisp-indent-last-sexp (point)))
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-10-21 3:03 bug#51312: 29.0.50; Indenting vectors with leading spaces errors out Lars Ingebrigtsen
2021-10-21 4:59 ` bug#51312: [External] : " Drew Adams
2021-10-21 9:06 ` martin rudalics
2021-10-21 13:09 ` Lars Ingebrigtsen
2021-10-22 9:05 ` martin rudalics
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