* This file exports one main function: _hb_ot_shape_normalize().
*
* This function closely reflects the Unicode Normalization Algorithm,
- * yet it's different. The shaper an either prefer decomposed (NFD) or
- * composed (NFC).
+ * yet it's different.
+ *
+ * Each shaper specifies whether it prefers decomposed (NFD) or composed (NFC).
+ * The logic however tries to use whatever the font can support.
*
* In general what happens is that: each grapheme is decomposed in a chain
* of 1:2 decompositions, marks reordered, and then recomposed if desired,
* which typically has better mark positioning.
*
* - When a font does not support a combining mark, but supports it precomposed
- * with previous base. This needs the itemizer to have this knowledge too.
- * We need ot provide assistance to the itemizer.
+ * with previous base, use that. This needs the itemizer to have this
+ * knowledge too. We need ot provide assistance to the itemizer.
*
* - When a font does not support a character but supports its decomposition,
* well, use the decomposition.