GNU bug report logs -
#44822
27.1; Regression in `ffap-read-file-or-url'
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Reported by: Drew Adams <drew.adams <at> oracle.com>
Date: Mon, 23 Nov 2020 17:25:02 UTC
Severity: normal
Merged with 44841
Found in version 27.1
Fixed in version 28.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
`ffap-read-file-or-url' now reads a URL as a file name, truncating to
remove a prefix such as http:/. Prior to Emacs 27, it correctly
returned the URL.
If point is not on a URL, then the guess is nil. The user is prompted
(as before) with the default directory as default. If the user rejects
that default value and replaces it by a URL (e.g. yanking), then
`ffap-read-file-or-url' should just return that URL, as it has always
done. In Emacs 27, it instead tries to handle it as a file name,
removing the prefix up to the first `/' before a non-/ char.
emacs -Q
;; With point not on a URL or file name:
(ffap-read-file-or-url "URL: " nil)
;; User is prompted, with the default-directory as default:
URL: /my/default/dir/
;; User pastes a URL after that or replaces that with a URL.
URL: /my/default/dir/http://foobar.com RET
;; or
URL: http://foobar.com RET
;; This is returned: /foobar.com
In Emacs 26.3 the URL entered by the user is returned correctly.
A main use of `read-file-or-url' is to prompt for and read a URL. If a
user enters a URL when FFAP has not been able to guess a URL, FFAP now
just treats the input as a filename. It treats prefix `http:/' the same
way it would treat prefix `c:' on MS Windows.
Reading a URL is maybe the main use case of `ffap-read-file-or-url'. (There is no `ffap-read-url'.) It's now broken.
In GNU Emacs 27.1 (build 1, x86_64-w64-mingw32)
of 2020-08-12 built on CIRROCUMULUS
Repository revision: 86d8d76aa36037184db0b2897c434cdaab1a9ae8
Repository branch: HEAD
Windowing system distributor 'Microsoft Corp.', version 10.0.18362
System Description: Microsoft Windows 10 Pro (v10.0.1903.18362.1139)
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Message #8 received at 44822 <at> debbugs.gnu.org (full text, mbox):
> Date: Mon, 23 Nov 2020 09:23:37 -0800 (PST)
> From: Drew Adams <drew.adams <at> oracle.com>
>
> `ffap-read-file-or-url' now reads a URL as a file name, truncating to
> remove a prefix such as http:/. Prior to Emacs 27, it correctly
> returned the URL.
>
> If point is not on a URL, then the guess is nil. The user is prompted
> (as before) with the default directory as default. If the user rejects
> that default value and replaces it by a URL (e.g. yanking), then
> `ffap-read-file-or-url' should just return that URL, as it has always
> done. In Emacs 27, it instead tries to handle it as a file name,
> removing the prefix up to the first `/' before a non-/ char.
>
> emacs -Q
>
> ;; With point not on a URL or file name:
>
> (ffap-read-file-or-url "URL: " nil)
>
> ;; User is prompted, with the default-directory as default:
>
> URL: /my/default/dir/
>
> ;; User pastes a URL after that or replaces that with a URL.
>
> URL: /my/default/dir/http://foobar.com RET
> ;; or
> URL: http://foobar.com RET
>
> ;; This is returned: /foobar.com
>
> In Emacs 26.3 the URL entered by the user is returned correctly.
>
> A main use of `read-file-or-url' is to prompt for and read a URL. If a
> user enters a URL when FFAP has not been able to guess a URL, FFAP now
> just treats the input as a filename. It treats prefix `http:/' the same
> way it would treat prefix `c:' on MS Windows.
>
> Reading a URL is maybe the main use case of `ffap-read-file-or-url'. (There is no `ffap-read-url'.) It's now broken.
Thierry and Stefan, these changes seem to have been done by you. Can
you please take a look at this issue? Would it be possible to fix
this for Emacs 27.2?
Forcibly Merged 44822 44841.
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積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
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(Fri, 27 Nov 2020 00:40:02 GMT)
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Disconnected #44841 from all other report(s).
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(Sat, 28 Nov 2020 03:37:01 GMT)
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Forcibly Merged 44822 44841.
Request was from
Lars Ingebrigtsen <larsi <at> gnus.org>
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(Sat, 31 Jul 2021 12:40:02 GMT)
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(Sat, 31 Jul 2021 12:49:02 GMT)
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Message #17 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
> Thierry and Stefan, these changes seem to have been done by you. Can
> you please take a look at this issue?
I don't understand the changes either.
With (ffap-read-file-or-url "Url: " nil) it's now currently impossible
to enter an URL after this change:
commit 8685db187b891bcadcf61e41dea3124e4c45b7d4
Author: Stefan Monnier <monnier <at> iro.umontreal.ca>
AuthorDate: Sat Nov 9 13:32:20 2019 -0500
* lisp/ffap.el (ffap-read-file-or-url): Don't use url-file-handler
Stefan?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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Message #20 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Lars Ingebrigtsen [2021-07-31 14:48:15] wrote:
> Eli Zaretskii <eliz <at> gnu.org> writes:
>> Thierry and Stefan, these changes seem to have been done by you. Can
>> you please take a look at this issue?
> I don't understand the changes either.
> With (ffap-read-file-or-url "Url: " nil) it's now currently impossible
> to enter an URL after this change:
>
> commit 8685db187b891bcadcf61e41dea3124e4c45b7d4
> Author: Stefan Monnier <monnier <at> iro.umontreal.ca>
> AuthorDate: Sat Nov 9 13:32:20 2019 -0500
>
> * lisp/ffap.el (ffap-read-file-or-url): Don't use url-file-handler
>
> Stefan?
Hmm... the motivation for the change is described in the comment:
;; FIXME: We earlier tried to make use of `url-file-handler' so
;; `read-file-name' could also be used for URLs, but it
;; introduced all kinds of subtle breakage such as:
;; - (file-name-directory "http://a") returning "http://a/"
;; - Trying to contact remote hosts with no justification
;; These should be fixed in url-handler-mode before we can try
;; using it here again.
Maybe the cure is worse than the disease,
Stefan
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Message #23 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
> Hmm... the motivation for the change is described in the comment:
>
> ;; FIXME: We earlier tried to make use of `url-file-handler' so
> ;; `read-file-name' could also be used for URLs, but it
> ;; introduced all kinds of subtle breakage such as:
> ;; - (file-name-directory "http://a") returning "http://a/"
> ;; - Trying to contact remote hosts with no justification
> ;; These should be fixed in url-handler-mode before we can try
> ;; using it here again.
Duh; my eyes just skipped that bit. :-/
> Maybe the cure is worse than the disease,
I had forgotten all the peculiarities that url-file-handler has -- it's
simply not a usable solution.
Perhaps somebody can come up with a much, much simpler solution for use
in `read-file-name' only -- that shouldn't be insurmountable, I think...
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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(Sat, 31 Jul 2021 17:52:02 GMT)
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Message #26 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Lars Ingebrigtsen <larsi <at> gnus.org> writes:
> Perhaps somebody can come up with a much, much simpler solution for use
> in `read-file-name' only -- that shouldn't be insurmountable, I think...
Sometimes that somebody is me, so this is now fixed in Emacs 28.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
bug marked as fixed in version 28.1, send any further explanations to
44822 <at> debbugs.gnu.org and Drew Adams <drew.adams <at> oracle.com>
Request was from
Lars Ingebrigtsen <larsi <at> gnus.org>
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(Sat, 31 Jul 2021 17:53:01 GMT)
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(Sat, 31 Jul 2021 17:56:01 GMT)
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Message #31 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Lars Ingebrigtsen [2021-07-31 18:58:12] wrote:
> Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
>
>> Hmm... the motivation for the change is described in the comment:
>>
>> ;; FIXME: We earlier tried to make use of `url-file-handler' so
>> ;; `read-file-name' could also be used for URLs, but it
>> ;; introduced all kinds of subtle breakage such as:
>> ;; - (file-name-directory "http://a") returning "http://a/"
>> ;; - Trying to contact remote hosts with no justification
>> ;; These should be fixed in url-handler-mode before we can try
>> ;; using it here again.
>
> Duh; my eyes just skipped that bit. :-/
>
>> Maybe the cure is worse than the disease,
>
> I had forgotten all the peculiarities that url-file-handler has -- it's
> simply not a usable solution.
>
> Perhaps somebody can come up with a much, much simpler solution for use
> in `read-file-name' only -- that shouldn't be insurmountable, I think...
Do you think that someone's last name could end in "olpiatto", maybe?
Stefan
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Message #34 received at submit <at> debbugs.gnu.org (full text, mbox):
I couldn't follow the bug report as it always seemed to work for me[1],
but after the fix, if I do an M-x find-file-at-point with the point on
(say) https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44822
I get a minibuffer prompt "Find file or URL" with the default set to the
url and the point at the beginning of the url string
wheras earlier I used to get the same prompt with the point positioned
at the end of the url string.
This makes a difference if i'm using some other system like vertico
1. My defaults for ffap were
(setq ffap-foo-at-bar-prefix nil)
(setq ffap-machine-p-known 'reject)
(setq ffap-machine-p-local 'reject)
(setq ffap-machine-p-unknown 'reject)
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Message #37 received at 44822 <at> debbugs.gnu.org (full text, mbox):
Madhu <enometh <at> meer.net> writes:
> I couldn't follow the bug report as it always seemed to work for me[1],
> but after the fix, if I do an M-x find-file-at-point with the point on
> (say) https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44822
>
> I get a minibuffer prompt "Find file or URL" with the default set to the
> url and the point at the beginning of the url string
This should now be fixed.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
bug archived.
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This bug report was last modified 2 years and 226 days ago.
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