severity 366255 wishlist
tags 366255 + confirmed upstream
forwarded 366255 auctex-devel@gnu.org
thanks

[AUCTeX people: please keep [EMAIL PROTECTED] in cc if and when you
reply.  This is a bug report from a Debian user, also in cc.]

>>>>>  RH == Robert Hart [2006-5-6]

RH> Package: auctex
RH> Version: 11.82-1
RH> Severity: minor

RH> If I use << within math mode (to mean much less than), then the
RH> remainder of the document appears grey.  e.g.

RH> some text
RH> $1 << 100$
RH> some more text

RH> I believe this occurs because << is considered to be a form of
RH> double quotes, and because there isn't a matching >> the
RH> font-locking gets confused. I'm not sure of the feasibilty of not
RH> matching << and >> within math-mode.

Hi Robert,

things behave the way you say, but I don't think this is a bug, or at
least not in the sense you mean.  In particular, from a typographical
standpoint, I don't think you should use $<<$ to mean much less than:
$<$ is a binary relation, it has special spacing before and after, and
is not really meant to be doubled; you should really use $\ll$ instead,
as in $1 \ll 100$.

Anyhow, I'm forwarding this report upstream, as it is maybe unclear
whether "<<" and ">>" matching in math mode is useful or troublesome.


-- 
Ciao, Davide


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