auctex: Prettifying
3.5 Prettifying
===============
Emacs 25 is able to prettify symbols in programming language buffers,
(emacs)Misc for Programs. The canonical example is to display
'(lambda () ...)' as '(λ () ...)' in Lisp buffers.
AUCTeX can use this feature in order to display certain math macros
and greek letters using their Unicode representation, too. For example,
the TeX code '\alpha \times \beta' will be displayed as 'α × β'. When
point is on one of the characters, it'll be unprettified automatically,
meaning you see the verbatim text again. For this behaviour however you
need to set 'prettify-symbols-unprettify-at-point' to t or 'right-edge'
which will unprettify the symbol when point moves into or near it.
To enable prettification in AUCTeX, simply add
'prettify-symbols-mode' to 'TeX-mode-hook'. If you enabled
prettification globally with 'global-prettify-symbols-mode', then it's
automatically enabled in AUCTeX, too.
You can also add custom symbol unicode-character pairs for
prettification by adding to 'tex--prettify-symbols-alist'. Note that
this variable is part of Emacs' stock 'tex-mode.el' and used by that and
AUCTeX.
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