2017-07-16 12:14:00

1 files changed, 16 insertions, 13 deletions

diff --git a/doc/context/sources/general/manuals/luatex/luatex-fonts.tex b/doc/context/sources/general/manuals/luatex/luatex-fonts.tex
index 793189d1c..44d913cea 100644
--- a/doc/context/sources/general/manuals/luatex/luatex-fonts.tex
+++ b/doc/context/sources/general/manuals/luatex/luatex-fonts.tex
@@ -58,8 +58,6 @@ The top|-|level keys in the table are as follows:
                                                             {\expandglyphsinfont} \NC \NR
 \NC step             \NC no  \NC no  \NC yes \NC number \NC the \quote {step} value from \type
                                                             {\expandglyphsinfont} \NC \NR
-\NC auto_expand      \NC no  \NC no  \NC yes \NC boolean\NC the \quote {autoexpand} keyword from \crlf
-                                                            \type {\expandglyphsinfont} \NC \NR
 \NC expansion_factor \NC no  \NC no  \NC no  \NC number \NC the actual expansion factor of an expanded font \NC \NR
 \NC attributes       \NC no  \NC no  \NC yes \NC string \NC the \type {\pdffontattr} \NC \NR
 \NC cache            \NC no  \NC no  \NC yes \NC string \NC This key controls caching of the \LUA\ table on the
@@ -86,17 +84,22 @@ The top|-|level keys in the table are as follows:
 \stoptabulate
 
 The key \type {name} is always required. The keys \type {stretch}, \type
-{shrink}, \type {step} and optionally \type {auto_expand} only have meaning when
-used together: they can be used to replace a post|-|loading \type
-{\expandglyphsinfont} command. The \type {expansion_factor} is value that can be
-present inside a font in \type {font.fonts}. It is the actual expansion factor (a
-value between \type {-shrink} and \type {stretch}, with step \type {step}) of a
-font that was automatically generated by the font expansion algorithm. The key
-\type {attributes} can be used to set font attributes in the \PDF\ file. The key
-\type {used} is set by the engine when a font is actively in use, this makes sure
-that the font's definition is written to the output file (\DVI\ or \PDF). The
-\TFM\ reader sets it to false. The \type {direction} is a number signalling the
-\quote {normal} direction for this font. There are sixteen possibilities:
+{shrink}, \type {step} only have meaning when used together: they can be used to
+replace a post|-|loading \type {\expandglyphsinfont} command. The \type
+{auto_expand} option is not supported in \LUATEX. In fact, the primitives
+that create expanded or protruding copies are probably only useful when used with
+traditional fonts because all these extra \OPENTYPE\ properties are kept out of
+the picture. The \type {expansion_factor} is value that can be present inside a
+font in \type {font.fonts}. It is the actual expansion factor (a value between
+\type {-shrink} and \type {stretch}, with step \type {step}) of a font that was
+automatically generated by the font expansion algorithm.
+
+The key \type {attributes} can be used to set font attributes in the \PDF\ file.
+The key \type {used} is set by the engine when a font is actively in use, this
+makes sure that the font's definition is written to the output file (\DVI\ or
+\PDF). The \TFM\ reader sets it to false. The \type {direction} is a number
+signalling the \quote {normal} direction for this font. There are sixteen
+possibilities:
 
 \starttabulate[|Tc|Tc|Tc|Tc|]
 \NC \rmbf number \NC \rmbf meaning \NC \rmbf number \NC \rmbf meaning \NC\NR