> Date: Sun, 3 Feb 2019 01:30:26 +0000 > From: Richard Wordingham via Unicode <[email protected]> > > Shaping for RTL scripts happens on strings stored in logical order. > These are then laid out right to left, though the dominant usage of > the term 'advance width' for right-to-left glyph sequences feels > perversely different from the use for left to right glyph sequences. > > Passing text in the form of characters in left-to-right order is an > annoying distraction, presumably forced on you by the attempt to > maximise compatibility with existing systems.
Actually, you pass the characters to be shaped in logical order, and then display the produced grapheme clusters in visual order.
