From: Ruijie Yu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: 63291@debbugs.gnu.org
Subject: bug#63291: libxml-parse-{html, xml}-region help page incorrect argument lower bound
Date: Fri, 05 May 2023 14:38:02 +0800 [thread overview]
Message-ID: <sdvfs8bff47.fsf@netyu.xyz> (raw)
First of all, this is newest Emacs 30 in-source build (pulled and built
a few hours ago).
I'm reading the help page of `libxml-parse-xml-region' and noticed this:
--8<---------------cut here---------------start------------->8---
libxml-parse-xml-region is a built-in function in ‘src/xml.c’.
(libxml-parse-xml-region START END &optional BASE-URL)
Parse the region as an XML document and return the parse tree.
If START is nil, it defaults to ‘point-min’. If END is nil, it
defaults to ‘point-max’.
...
--8<---------------cut here---------------end--------------->8---
Notice the function signature: it implies that the first two arguments
are mandatory, even though the docstring proceeds to talk about what
happens when these two arguments are nil. Similarly for
`libxml-parse-html-region'.
However, both the C source code and experiments show that these two
functions do accept 0 arguments.
```emacs-lisp
(with-temp-buffer (insert "<html></html>")
(libxml-parse-html-region))
;=> (html nil)
```
I have zero knowledge of dealing with C defuns, so I'll leave fixing
this issue to someone more experienced at that.
--
Best,
RY
[Please note that this mail might go to spam due to some
misconfiguration in my mail server -- still investigating.]
next reply other threads:[~2023-05-05 6:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-05 6:38 Ruijie Yu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-05-05 7:13 ` bug#63291: libxml-parse-{html, xml}-region help page incorrect argument lower bound Eli Zaretskii
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=sdvfs8bff47.fsf@netyu.xyz \
--to=bug-gnu-emacs@gnu.org \
--cc=63291@debbugs.gnu.org \
--cc=ruijie@netyu.xyz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).