From: David Bremner <david@tethera.net>
To: Jon Fineman <jon@fineman.me>, notmuch@notmuchmail.org
Cc: Jon Fineman <jon@fineman.me>
Subject: Re: Forward email error - forward-sexp: Scan error
Date: Wed, 03 Apr 2024 07:33:12 -0300 [thread overview]
Message-ID: <87o7aqn3br.fsf@tethera.net> (raw)
In-Reply-To: <875xxi5p56.fsf@ryzen.jonjfineman.com>
Jon Fineman <jon@fineman.me> writes:
> Debugger entered--Lisp error: (scan-error "Unbalanced parentheses" 22384 32216)
> scan-sexps(22384 1)
> forward-sexp()
> mml-expand-html-into-multipart-related((part (type . "text/html") (charset . "UTF-8") (nofile . "yes") (tag-location . 907) (contents . "<!DOCTYPE html>\n<!--a71f943b-ab8b-549b-4cb2-514a60...")))
> mml-expand-all-html-into-multipart-related((part (type . "text/html") (charset . "UTF-8") (nofile . "yes") (tag-location . 907) (contents . "<!DOCTYPE html>\n<!--a71f943b-ab8b-549b-4cb2-514a60...")))
> mml-expand-all-html-into-multipart-related((multipart (type . "mixed") (tag-location . 883) (part (type . "text/html") (charset . "UTF-8") (nofile . "yes") (tag-location . 907) (contents . "<!DOCTYPE html>\n<!--a71f943b-ab8b-549b-4cb2-514a60..."))))
> mapcar(mml-expand-all-html-into-multipart-related ((part (type . "text/plain") (contents . "\n-------------------- Start of forwarded message -...")) (multipart (type . "mixed") (tag-location . 883) (part (type . "text/html") (charset . "UTF-8") (nofile . "yes") (tag-location . 907) (contents . "<!DOCTYPE html>\n<!--a71f943b-ab8b-549b-4cb2-514a60..."))) (part (type . "text/plain") (contents . "-------------------- End of forwarded message ----..."))))
> mml-generate-mime(nil nil)
Is that HTML part confidential? My current guess is that it is
triggering a bug in the HTML parsing in GNUs. The call to forward-sexp
which is failing seems to be used (along with a special syntax table)
for selecting the region to be parsed by libxml. I do not see any
handling of malformed HTML in the corresponding function. Perhaps this
happens somewhere else, but another possibility is there isn't any
checks.
If the part is confidential, and you can isolate it, please run it
through some strict syntax checker. It could also be that the
assumptions about <> structure being balanced are violated in various
ways by syntactically correct HTML.
David
prev parent reply other threads:[~2024-04-03 10:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-18 15:21 Forward email error - forward-sexp: Scan error Jon Fineman
2024-03-19 12:17 ` David Bremner
2024-03-19 13:26 ` Jon Fineman
2024-04-03 10:33 ` David Bremner [this message]
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