"Sanjeev Kumar.S" yahoo.com> writes:

Of course I am utterly biased as author of those features, but I'd give
everybody writing LaTeX the advice to check out a recent AUCTeX version
with preview-latex.

And I'd recommend users of Emacs 22 (and later) to reread the section

(info "(emacs) Regexp Replace")

I am pretty much the offending party for the stuff after half a page
down, and it comes in quite handy for text manipulations. Computed
replacements are quite a powerful tool that have become available only
recently.