Thanks a lot! ‘You cannot do this in the first place, because the parts of the UBA before that need to distinguish between segment separators, paragraph separators, and whitespace.’ I think you lose a ‘not’ behind 'need'. Is that right?
On Sun, Oct 9, 2011 at 9:20 PM, Eli Zaretskii <[email protected]> wrote: > > Date: Sun, 9 Oct 2011 18:21:43 +0800 > > From: li bo <[email protected]> > > List-software: Ecartis version 1.0.0 > > > > Before determining embedding levels for characters, assign directional > types > > like this > > // assign directional types > > classify(pszInput, types, cch); > > And after determining embedding levels, assign directional types again > ,but > > for WS,S > > // assign directional types again, but for WS, S this time > > classify(pszInput, types, cch, true); > > > > Why not assign directional types for WS and S in the first time? > > The second call to 'classify' is due to L1, which says that certain > types of characters should have their level reset to the paragraph > embedding level. > > You cannot do this in the first place, because the parts of the UBA > before that need to distinguish between segment separators, paragraph > separators, and whitespace. L1 is one of the last stages of > processing, when the original bidi properties were already taken into > account, so it is possible at this stage to reset the levels of these > characters. >
