* [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)]
@ 2021-05-26 23:42 Radon Rosborough
2021-05-27 3:25 ` Ihor Radchenko
0 siblings, 1 reply; 6+ messages in thread
From: Radon Rosborough @ 2021-05-26 23:42 UTC (permalink / raw)
To: Emacs-orgmode
Hello,
In commit 0260d2fcf603f30210e2b95d37727edd832c12e9 of 2021-04-26, the
regexp used in `org-agenda-prefix-format' was updated to use a
non-greedy regexp, in order to allow multiple %(expression) instances
in `org-agenda-prefix-format'. Unfortunately, this change breaks the
ability to use nested forms in %(expression) instances. For example, I
use the following setting for `org-agenda-prefix-format':
(setf (alist-get 'agenda org-agenda-prefix-format)
" %(format-time-string \"%a\" (org-get-deadline-time (point))) ")
When running `org-agenda', I now receive the error
`org-compile-prefix-format: End of file during parsing'. This is
because of the updated regexp match, which stops at the first closing
parenthesis:
ELISP> myfmt
" %(format-time-string \"%a\" (org-get-deadline-time (point))) "
ELISP> (and (string-match "%\\(\\?\\)?\\([-+]?[0-9.]*\\)\\([
.;,:!?=|/<>]?\\)\\([cltseib]\\|(.+?)\\)" myfmt) (match-string 4
myfmt))
"(format-time-string \"%a\" (org-get-deadline-time (point)"
With the previous regexp, it works fine:
ELISP> (and (string-match "%\\(\\?\\)?\\([-+]?[0-9.]*\\)\\([
.;,:!?=|/<>]?\\)\\([cltseib]\\|(.+)\\)" myfmt) (match-string 4 myfmt))
"(format-time-string \"%a\" (org-get-deadline-time (point)))"
Thanks,
Radon Rosborough
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)]
2021-05-26 23:42 [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)] Radon Rosborough
@ 2021-05-27 3:25 ` Ihor Radchenko
2021-05-29 21:18 ` Radon Rosborough
0 siblings, 1 reply; 6+ messages in thread
From: Ihor Radchenko @ 2021-05-27 3:25 UTC (permalink / raw)
To: Radon Rosborough; +Cc: Emacs-orgmode
Radon Rosborough <radon.neon@gmail.com> writes:
> Hello,
>
> In commit 0260d2fcf603f30210e2b95d37727edd832c12e9 of 2021-04-26, the
> regexp used in `org-agenda-prefix-format' was updated to use a
> non-greedy regexp, in order to allow multiple %(expression) instances
> in `org-agenda-prefix-format'. Unfortunately, this change breaks the
> ability to use nested forms in %(expression) instances. For example, I
> use the following setting for `org-agenda-prefix-format':
Confirmed.
Sorry, I noticed this problem after sending the patch, but I do not know
an easy way to solve it. To handle sexps properly, we need to do
something more complex than just a simple regexp. Probably, using
org-element--parse-paired-brackets or similar code.
Fixing this is (down) in my todo-list, but patches are welcome.
Best,
Ihor
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)]
2021-05-27 3:25 ` Ihor Radchenko
@ 2021-05-29 21:18 ` Radon Rosborough
2021-05-30 8:04 ` Ihor Radchenko
0 siblings, 1 reply; 6+ messages in thread
From: Radon Rosborough @ 2021-05-29 21:18 UTC (permalink / raw)
To: Ihor Radchenko; +Cc: Emacs-orgmode
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If you insert the format string into a temporary buffer, then the `read'
function will read up to the closing parenthesis and update point
accordingly. That would be a foolproof way to handle all possible Lisp
forms: use a regexp to find the start, and then use `read' to find the end.
Then proceed with regexp matching, and repeat like that.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)]
2021-05-29 21:18 ` Radon Rosborough
@ 2021-05-30 8:04 ` Ihor Radchenko
2021-05-30 16:48 ` Radon Rosborough
2021-09-26 7:12 ` Bastien
0 siblings, 2 replies; 6+ messages in thread
From: Ihor Radchenko @ 2021-05-30 8:04 UTC (permalink / raw)
To: Radon Rosborough; +Cc: Emacs-orgmode
[-- Attachment #1: Type: text/plain, Size: 466 bytes --]
Radon Rosborough <radon.neon@gmail.com> writes:
> If you insert the format string into a temporary buffer, then the `read'
> function will read up to the closing parenthesis and update point
> accordingly. That would be a foolproof way to handle all possible Lisp
> forms: use a regexp to find the start, and then use `read' to find the end.
> Then proceed with regexp matching, and repeat like that.
Thanks for the suggestion! The patch is attached.
Best,
Ihor
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-Allow-sexps-with-nested-parenthesis-in-org-agenda-pr.patch --]
[-- Type: text/x-diff, Size: 1862 bytes --]
From ffbf7fe29913e33e3f20544be49b6cc2c0ef6409 Mon Sep 17 00:00:00 2001
Message-Id: <ffbf7fe29913e33e3f20544be49b6cc2c0ef6409.1622361756.git.yantar92@gmail.com>
From: Ihor Radchenko <yantar92@gmail.com>
Date: Sun, 30 May 2021 16:00:07 +0800
Subject: [PATCH] Allow sexps with nested parenthesis in
org-agenda-prefix-format
* lisp/org-agenda.el (org-compile-prefix-format): Use `read' instead
of pure regexp matching to determine bounds of %(sexp) expressions in
`org-agenda-prefix-format'.
Fixes https://orgmode.org/list/87fsy8yi1e.fsf@localhost/
---
lisp/org-agenda.el | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/lisp/org-agenda.el b/lisp/org-agenda.el
index f49a24f88..fcfcd872e 100644
--- a/lisp/org-agenda.el
+++ b/lisp/org-agenda.el
@@ -6942,7 +6942,7 @@ (defun org-compile-prefix-format (key)
(and (string-match "\\.[0-9]+" x)
(string-to-number (substring (match-string 0 x) 1)))))))
(if (eq var 'eval)
- (setq varform `(format ,f (org-eval ,(read (match-string 4 s)))))
+ (setq varform `(format ,f (org-eval ,(read (substring s (match-beginning 4))))))
(if opt
(setq varform
`(if (member ,var '("" nil))
@@ -6951,7 +6951,12 @@ (defun org-compile-prefix-format (key)
(setq varform
`(format ,f (if (member ,var '("" nil)) ""
(concat ,var ,c (get-text-property 0 'extra-space ,var)))))))
- (setq s (replace-match "%s" t nil s))
+ (if (eq var 'eval)
+ (setf (substring s (match-beginning 0)
+ (+ (match-beginning 4)
+ (length (format "%S" (read (substring s (match-beginning 4)))))))
+ "%s")
+ (setq s (replace-match "%s" t nil s)))
(push varform vars))
(setq vars (nreverse vars))
(with-current-buffer (or org-agenda-buffer (current-buffer))
--
2.26.3
^ permalink raw reply related [flat|nested] 6+ messages in thread
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2021-05-26 23:42 [BUG] org-compile-prefix-format regexp change breaks eval forms [9.4.6 (9.4.6-gf72a65)] Radon Rosborough
2021-05-27 3:25 ` Ihor Radchenko
2021-05-29 21:18 ` Radon Rosborough
2021-05-30 8:04 ` Ihor Radchenko
2021-05-30 16:48 ` Radon Rosborough
2021-09-26 7:12 ` Bastien
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