Mohammad Hossein Bateni mailto:bateni@gmail.com 22. August 2016 um 10:49 Same problem, item (6) of email below, observed with arabtype font. See attached. MWE follows.
\definefontfamily [myfamily] [serif] [arabictypesetting] [features=arabic] \setupbodyfont [myfamily] \setupalign[r2l] \setupdirections[bidi=global,method=two]
\setupmixedcolumns[register][direction=reverse] When you have a font with large ascender/descender you can increase the linespacing (line key) or change the height/depth (height and depth keys) values for \strut.
\startsetups[register:interlinespace] \setupinterlinespace[height=0.6,depth=0.4,line=3.2ex] \stopsetups \setupmixedcolumns [index] [direction=reverse, setups=register:interlinespace] Wolfgang