23.0.60; html-mode syntactic fontification error at line 164

23.0.60; html-mode syntactic fontification error at line 164

[Lennart Borgman (gmail)]

This is a rather strange fontification error. Sometimes lines after a 
certain line or the last part of the line itself gets fontified as 
strings (which is incorrect) and sometimes not. I do not believe I am 
able to make a simple example of this. Instead I have put up a copy of 
the file where I saw it on the web:

   http://ourcomments.org/Emacs/DL/html-syntactic-err-l164.html

To reproduce the error download this file, start Emacs with

   emacs -Q

open the file (switch to html-mode if it is not opened in html-mode) and 
go to line 164. There can be a little bit different errors, but the most 
common is that the lines below this line are fontified as string. I 
found right now that if I do

   M-g g 164

then I see the error above. However if I scroll down line by line to 
line 164 then the fontification is ok.

For other versions of misfontification I am not sure how to reproduce 
them at the moment.


In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
  of 2008-04-19 on LENNART-69DE564
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt --cflags 
-Ic:/g/include -fno-crossjumping'

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: ENU
   value of $XMODIFIERS: nil
   locale-coding-system: cp1252
   default-enable-multibyte-characters: t

Major mode: XHTML

Minor modes in effect:
   tooltip-mode: t
   tool-bar-mode: t
   mouse-wheel-mode: t
   menu-bar-mode: t
   file-name-shadow-mode: t
   global-font-lock-mode: t
   font-lock-mode: t
   blink-cursor-mode: t
   global-auto-composition-mode: t
   auto-composition-mode: t
   auto-compression-mode: t
   line-number-mode: t
   transient-mark-mode: t

Re: 23.0.60; html-mode syntactic fontification error at line 164

[Lennart Borgman (gmail)]

Lennart Borgman (gmail) wrote:
> This is a rather strange fontification error. Sometimes lines after a 
> certain line or the last part of the line itself gets fontified as 
> strings (which is incorrect) and sometimes not. I do not believe I am 
> able to make a simple example of this. Instead I have put up a copy of 
> the file where I saw it on the web:
> 
>   http://ourcomments.org/Emacs/DL/html-syntactic-err-l164.html
> 
> To reproduce the error download this file, start Emacs with
> 
>   emacs -Q
> 
> open the file (switch to html-mode if it is not opened in html-mode) and 
> go to line 164. There can be a little bit different errors, but the most 
> common is that the lines below this line are fontified as string. I 
> found right now that if I do
> 
>   M-g g 164
> 
> then I see the error above. However if I scroll down line by line to 
> line 164 then the fontification is ok.
> 
> For other versions of misfontification I am not sure how to reproduce 
> them at the moment.

I think that this problem is related to > characters that are not part 
of a tag. parse-partial-sexp can return negative values for parent depth 
when it find such character.

Re: 23.0.60; html-mode syntactic fontification error at line 164

[Jason Rumney]

Lennart Borgman (gmail) wrote:
> I think that this problem is related to > characters that are not part 
> of a tag. 

Such characters make the file invalid HTML, so it is not surprising that 
fontification fails from that point.

Re: 23.0.60; html-mode syntactic fontification error at line 164

[Lennart Borgman (gmail)]

Jason Rumney wrote:
> Lennart Borgman (gmail) wrote:
>> I think that this problem is related to > characters that are not part 
>> of a tag. 
> 
> Such characters make the file invalid HTML, so it is not surprising that 
> fontification fails from that point.

I thought that you could use > but not <.

And I see that nxml-mode does not complain about single >.

Re: 23.0.60; html-mode syntactic fontification error at line 164

[Miles Bader]

"Lennart Borgman (gmail)" <lennart.borgman@gmail.com> writes:
> I thought that you could use > but not <.
>
> And I see that nxml-mode does not complain about single >.

That would be just about the only thing nxml-mode doesn't complain about
... :-)

[Not complaining, mind you!  Since I've started using nxml-mode, my html
always validates perfectly on the first try... why isn't it the default
anyway?  :-]

-Miles

-- 
Dawn, n. When men of reason go to bed.