# HG changeset patch
# User Uwe Brauer <[email protected]>
# Date 1473420883 0
# Fri Sep 09 11:34:43 2016 +0000
# Node ID 19350016f7cdbe183338791ed06cf69fcf83a478
# Parent 73ba0ee18b563b68138c96dd12fd04bc59145520
doc/auctex.texi: modify inf about prettifying at inf about font-latex-fontify-script
diff --git a/doc/auctex.texi b/doc/auctex.texi
--- a/doc/auctex.texi
+++ b/doc/auctex.texi
@@ -164,7 +164,7 @@
* Folding:: Folding Macros and Environments
* Outline:: Outlining the Document
* Narrowing:: Restricting display and editing to a portion of the buffer
-* Prettifying:: Displaying Greek and math macros as Unicode characters
+* Prettifying:: Displaying Greek and math macros as Unicode characters including super and subscripts
Font Locking
@@ -1819,7 +1819,7 @@
* Folding:: Folding Macros and Environments
* Outline:: Outlining the Document
* Narrowing:: Restricting display and editing to a portion of the buffer
-* Prettifying:: Displaying Greek and math macros as Unicode characters
+* Prettifying:: Displaying Greek and math macros as Unicode characters including super and subscripts
@end menu
@node Font Locking
@@ -2589,7 +2589,17 @@
Emacs 25 is able to prettify symbols in programming language buffers,
@pxref{Misc for Programs,,,emacs,GNU Emacs Manual}. The canonical
example is to display @code{(lambda () ...)} as @code{(λ () ...)} in
-Lisp buffers.
+Lisp buffers. Such a functionality was/is provided by x-symbol for
+Xemacs a long time so Xemacs, x-symbol users will feel at home. There
+is however an important difference, x-symbol translated the TeX macros
+to some internal chars, which were then displayed by special designed
+fonts. This lead to problems with various filling functions, slowed down
+Xemacs and resulted sometimes in data corruption, however prettified
+symbols could be deleted simply by delete or backspace. Emacs 25 uses an
+entirely different approach relying on overlays. That makes prettifying
+much faster and does not result in data corruption, however deleting
+prettified symbols cannot be done by simply hitting delete or backspace,
+one must use @code{kill-word} or @code{backward-kill-word}.
@AUCTeX{} can use this feature in order to display certain math macros
and greek letters using their Unicode representation, too. For example,
@@ -2607,6 +2617,12 @@
that this variable is part of Emacs' stock @code{tex-mode.el} and used
by that and @AUCTeX{}.
+In addition you can configure Emacs so that the «^» and «_» in sub and
+superscripts are not displayed. Strictly speaking this is not a feature
+of @code{global-prettify-symbols-mode} nor of @AUCTeX{} but it enhances
+the «WYSIWYG» feeling. To enable that feature you have to set the
+variable @font-latex-fontify-script{} to ‘invisible’.
+
@node Processing
@chapter Starting Processors, Viewers and Other Programs
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