2018-03-21 09:24:00

1 files changed, 9 insertions, 1 deletions

diff --git a/doc/context/sources/general/fonts/fonts/fonts-extensions.tex b/doc/context/sources/general/fonts/fonts/fonts-extensions.tex
index 8de29fcaf..ace0f771e 100644
--- a/doc/context/sources/general/fonts/fonts/fonts-extensions.tex
+++ b/doc/context/sources/general/fonts/fonts/fonts-extensions.tex
@@ -430,6 +430,9 @@ This is a rather special one. First we show a couple of definitions:
 
 \typebuffer \getbuffer
 
+When you don't want a dimension to change you leave an entry empty, so
+valid entries are for instance: \type {,3,} and \type {1,,}.
+
 As usual you apply such a feature as follows:
 
 \starttyping
@@ -475,7 +478,8 @@ A special case is the following:
 
 \typebuffer \getbuffer
 
-This will make the height and depth the same as the current strut height and depth:
+This will make the height and depth the same as the {\em current} strut height
+and depth:
 
 \startbuffer
 \ruledhbox{\definedfont[Serif*default,dimensions-e at  8pt]clipped}
@@ -489,6 +493,10 @@ The dimensions are (in this case) limited:
 
 \startlinecorrection[blank] \dontleavehmode \hpack{\maincolor\inlinebuffer} \stoplinecorrection
 
+Another special case is \type {dimensions=mono} which will make an characters the
+fonts em|-|width. This is handy when you define font fallbacks where glyphs come
+from a non monospaced font.
+
 \stopsection
 
 \startsection[title=Unicoding]