RE: nXML gags on XML with one long line

[Boylan, Ross]

The file is almost 5 million characters; the output of wc at the bottom of my 
original message has the exact figures, as well as the word count.

In text mode things emacs didn't chew up the CPU and was responsive; as I said, 
the result wasn't very useful to me.

Ross
________________________________________
From: help-gnu-emacs-bounces+ross.boylan=ucsf.edu@gnu.org 
[help-gnu-emacs-bounces+ross.boylan=ucsf.edu@gnu.org] on behalf of Eli 
Zaretskii [eliz@gnu.org]
Sent: Wednesday, December 24, 2014 8:28 AM
To: help-gnu-emacs@gnu.org
Subject: Re: nXML gags on XML with one long line

> From: "Boylan, Ross" <Ross.Boylan@ucsf.edu>
> Date: Wed, 24 Dec 2014 09:02:43 +0000
>
> I opened a .xml file that was relatively large in GNU Emacs 23.4.1 
> (x86_64-pc-linux-gnu, GTK+ Version 2.24.10)
>  of 2012-09-08 on trouble, modified by Debian.  This opened in nXML mode, but 
> started using up all the CPU (I think after I asked it to use outline mode) 
> and became unresponsive.  Before that it showed a message saying the file was 
> 87% validated (very roughly--from memory) for quite awhile (a minute?), with 
> low CPU use.  It did eventually show as completely validated.
>
> The xml file is one long block of text with no whitespace between entries; in 
> fact, there isn't even a line break at the end of the file.  Some of the nXML 
> documentation, specifically on paragraphs, refers to identifying paragraphs 
> by line breaks.  Perhaps nXML can't cope with files without newlines?

How long is that single long line?  Emacs has known problems with
displaying very long lines (like tens of thousands of characters).

If you visit the file in Fundamental mode, does the problem go away?