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## [Bug-AUCTeX] 11.84 syntax highlighting confuses with longline minor mode

 From: georg grafendorfer Subject: [Bug-AUCTeX] 11.84 syntax highlighting confuses with longline minor mode Date: Fri, 29 Jun 2007 03:26:46 +0200

Hi everybody,
i use auctex 11.84 with emacs 22.1 on a Debian Etch system.

Put the following text in your emacs buffer, set fill-column to 100 and activate longlines mode by M-x longlines-mode:


\documentclass[12pt, titlepage]{article}
\pdfoutput=1
\usepackage{ucs}\usepackage[utf8x]{inputenc}

\begin{document}
Hallo


%Our goal is to perform a calculation which achieves $|\psi^{A, B}(x)-\widetilde{\psi^{A, B}}(x)| \le |\widetilde{\psi^{A, B}}(x)|$ and $|\psi^{A, B}(x)-\widetilde{\psi^{A, B}}(x)| \le abserr$ for some positiv real number abserr, where $\widetilde{\psi^{A, B}}(x)$ denotes the calculated value. The first condition guarantees $\psi^{A, B}(x)< 0$ if and only if $\widetilde{\psi^{A, B}}(x)< 0$ and we can see that in the case $\psi^{A, B}(x)= 0$ it's impossible to meet. As we will see, under some additional restrictions which are no real restrictions, we are able to perform a calculation which meets $|\psi^{A, B}(x)-\widetilde{\psi^{A, B}}(x)| \le abserr$ for some positiv real number abserr and therefore in the case $\psi^{A, B}(x) \not= 0$ it's also possible to meet $|\psi^{A, B}(x)-\widetilde{\psi^{A, B}}(x)| \le |\widetilde{\psi^{A, B}}(x)|$, we just have to decrease $abserr$ until $abserr \le \frac{1}{2}|\psi^{A, B}(x)|$.

Hallo, i'm colored brown, allthough i'm just normal text!!
\end{document}


On my system only the first "line" appears in red and all the others normal, but with math mode and normal text mode changed, because there is one "$" in the first "line" which should indicate beginning math mode, this "$" is missing in the rest of the (long) line which causes font-lock-mode to change colors and to color the following lines in brown. The behaviour is somehow indetermined because in the example above i have to edit the last line to get it colored brown, in my (bigger) file all the following text is colored brown directly after activating longlines mode.
I think it's clear which behauviour is expected instead.

Thank you for considering my request,
Georg

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