Re: 23.1; hl-line-mode appears to not be compatible with line prefix text properties

From: Eric S Fraga <ucecesf@ucl.ac.uk>
To: Chong Yidong <cyd@stupidchicken.com>
Cc: org-mode mailing list <emacs-orgmode@gnu.org>,
	Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: 23.1; hl-line-mode appears to not be compatible with line prefix text properties
Date: Sat, 09 Jan 2010 20:55:55 +0000	[thread overview]
Message-ID: <87iqbbknfo.wl%ucecesf@ucl.ac.uk> (raw)
In-Reply-To: <87fx6fhx1v.fsf@stupidchicken.com>

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At Sat, 09 Jan 2010 14:56:28 -0500,
Chong Yidong wrote:
> 
> Hi Eric,
> 
> > I use org-mode extensively.  In a recent upgrade to org-mode, text
> > properties are used to display the text automatically indented.
> > However, this use of line prefix text properties, in particular, seems
> > to interact badly with hl-line-mode.  Specifically, the highlighting
> > done by hl-line-mode starts at an indented position, not at the
> > physical start of the line, and continues onto the next screen line to
> > line up with the start position.
> >
> > A sample screenshot of this erroneous behaviour can be found (for a
> > short while, at least) at
> >
> >       http://www.homepages.ucl.ac.uk/~ucecesf/tmp/indent-highlight.png
> 
> Org mode has been updated in Emacs since your bug report.  Would it be
> possible for you to test if the bug still exists with the latest Emacs
> bzr repository?  If that's inconvenient, could you please provide a
> precise step-by-step recipe for reproducing this problem?
> 
> Thanks.

Chong,

using the latest emacs from the bzr repository is not very convenient
at all.  Sorry.  However, I can easily reproduce the problem: take the
attached org file (very short).  Visit this file in Emacs with latest
org.  Then turn on global-hl-line-mode or hl-line-mode (either or
both).  Move the cursor to the first line after the "Introduction"
heading and you should see the highlighting extend to the white space
of the next line.

The screenshot is still in the location indicated above and the
current behaviour is the same as when that screenshot was generated.

Thanks,
eric

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# -*- mode: org; mode: auto-fill; -*-
#+TITLE:     test.org
#+AUTHOR:    Eric S Fraga
#+EMAIL:     e.fraga@ucl.ac.uk
#+DATE:      2008-10-07 Tue
#+LANGUAGE:  en
#+OPTIONS:   H:3 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t TeX:t LaTeX:t skip:nil d:nil tags:not-in-toc
#+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCUDE_TAGS: noexport
#+LINK_UP:
#+LINK_HOME:
#+DRAWERS: HIDDEN hidden extra details
#+STARTUP: lognotedone lognoteclock-out

#+STARTUP: indent

# org file to test out org as I learn it.

* Introduction
The introduction, most obviously introduces
material in an introductory manner.

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