* bug#4512: 23.1; html-mode C-c C-f on runs of <P>
@ 2009-09-21 22:48 Kevin Ryde
2009-09-22 21:45 ` Stefan Monnier
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Kevin Ryde @ 2009-09-21 22:48 UTC (permalink / raw)
To: bug-gnu-emacs
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In a html-mode buffer with runs of successive <P> tags, like
(progn
(switch-to-buffer "foo")
(dotimes (i 5000) (insert (format "<p> abc\n" i)))
(goto-char (point-min))
(html-mode))
pressing C-c C-f gets an error
Variable binding depth exceeds max-specpdl-size
instead of going forward. The way C-c C-f `sgml-skip-tag-forward'
requires a closing </P> etc is no doubt what's wanted for sgml, but for
the looser html it'd be good if it recognised some closing tags are
optional.
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: sgml-mode.el.skip-comment.diff --]
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--- sgml-mode.el.~1.140.~ 2009-08-22 07:48:30.000000000 +1000
+++ sgml-mode.el 2009-09-22 08:42:35.000000000 +1000
@@ -840,6 +840,14 @@
;; FIXME: Use sgml-get-context or something similar.
;; It currently might jump to an unrelated </P> if the <P>
;; we're skipping has no matching </P>.
+
+ ;; FIXME: For html-mode a closing </P> is optional, and others like
+ ;; </TR> similarly. This code or some `html-skip-tag-forward'
+ ;; should recognise a new <P> ends a previous <P>, and with some
+ ;; precedence levels among <TR>, <TD>, <P>, etc. Currently the
+ ;; recursion in the `while' below means runs of successive <P> error
+ ;; out exceeding max-specpdl-size.
+
(let ((return t))
(with-syntax-table sgml-tag-syntax-table
(while (>= arg 1)
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In GNU Emacs 23.1.1 (i486-pc-linux-gnu, GTK+ Version 2.16.5)
of 2009-08-03 on raven, modified by Debian
configured using `configure '--build=i486-linux-gnu' '--host=i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_AU
value of $XMODIFIERS: nil
locale-coding-system: iso-latin-1-unix
default-enable-multibyte-characters: t
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#4512: 23.1; html-mode C-c C-f on runs of <P>
2009-09-21 22:48 bug#4512: 23.1; html-mode C-c C-f on runs of <P> Kevin Ryde
@ 2009-09-22 21:45 ` Stefan Monnier
2016-01-21 20:37 ` Alan Third
2019-06-27 1:54 ` Stefan Kangas
2 siblings, 0 replies; 4+ messages in thread
From: Stefan Monnier @ 2009-09-22 21:45 UTC (permalink / raw)
To: Kevin Ryde; +Cc: 4512, bug-gnu-emacs
> In a html-mode buffer with runs of successive <P> tags, like
> (progn
> (switch-to-buffer "foo")
> (dotimes (i 5000) (insert (format "<p> abc\n" i)))
> (goto-char (point-min))
> (html-mode))
> pressing C-c C-f gets an error
> Variable binding depth exceeds max-specpdl-size
> instead of going forward. The way C-c C-f `sgml-skip-tag-forward'
> requires a closing </P> etc is no doubt what's wanted for sgml, but for
> the looser html it'd be good if it recognised some closing tags are
> optional.
The necessary info is already present and used by the indentation
code, via the function sgml-unclosed-tag-p. All it needs is for someone
to figure out how to merge the indentation's navigation code with the
sgml-skip-tag-(for|back)ward code (which predates it, but wasn't good
enough).
Stefan
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#4512: 23.1; html-mode C-c C-f on runs of <P>
2009-09-21 22:48 bug#4512: 23.1; html-mode C-c C-f on runs of <P> Kevin Ryde
2009-09-22 21:45 ` Stefan Monnier
@ 2016-01-21 20:37 ` Alan Third
2019-06-27 1:54 ` Stefan Kangas
2 siblings, 0 replies; 4+ messages in thread
From: Alan Third @ 2016-01-21 20:37 UTC (permalink / raw)
To: Kevin Ryde; +Cc: 4512
Kevin Ryde <user42@zip.com.au> writes:
> In a html-mode buffer with runs of successive <P> tags, like
>
> (progn
> (switch-to-buffer "foo")
> (dotimes (i 5000) (insert (format "<p> abc\n" i)))
> (goto-char (point-min))
> (html-mode))
>
> pressing C-c C-f gets an error
>
> Variable binding depth exceeds max-specpdl-size
I still see this in emacs 25.
--
Alan Third
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#4512: 23.1; html-mode C-c C-f on runs of <P>
2009-09-21 22:48 bug#4512: 23.1; html-mode C-c C-f on runs of <P> Kevin Ryde
2009-09-22 21:45 ` Stefan Monnier
2016-01-21 20:37 ` Alan Third
@ 2019-06-27 1:54 ` Stefan Kangas
2 siblings, 0 replies; 4+ messages in thread
From: Stefan Kangas @ 2019-06-27 1:54 UTC (permalink / raw)
To: Alan Third; +Cc: 4512, Kevin Ryde
Alan Third <alan@idiocy.org> writes:
> Kevin Ryde <user42@zip.com.au> writes:
>
>> In a html-mode buffer with runs of successive <P> tags, like
>>
>> (progn
>> (switch-to-buffer "foo")
>> (dotimes (i 5000) (insert (format "<p> abc\n" i)))
>> (goto-char (point-min))
>> (html-mode))
>>
>> pressing C-c C-f gets an error
>>
>> Variable binding depth exceeds max-specpdl-size
>
> I still see this in emacs 25.
I can reproduce this using Emacs 26.2.
Thanks,
Stefan Kangas
^ permalink raw reply [flat|nested] 4+ messages in thread
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2009-09-21 22:48 bug#4512: 23.1; html-mode C-c C-f on runs of <P> Kevin Ryde
2009-09-22 21:45 ` Stefan Monnier
2016-01-21 20:37 ` Alan Third
2019-06-27 1:54 ` Stefan Kangas
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