Philippe Verdy scripsit: > Where does the fact of saying that a Grapheme Disjoiner can be used > in Turkish to avoid that the f collapses the dot above a next lowercase i?
It is settled that ZWNJ is the correct character to break ligatures. ZWJ means "make a ligature if you can; if not, shape characters to joining forms if you can; if not that either, do nothing." ZWNJ means "break ligatures, if any, and shape characters to non-joining forms, if possible." > I'm still convinced that a ligature is still possible for a turkish <f, > dotted-i> sequence, using <f, i, dot-above>. The ligature would apply > to the middle bar of the <f> joined with the top serif of the <i>, > but the top-right loop of the f would simply be a small horital bar, > disjoined from the dot still present on the i. Yes, theoretically. Whether that is good Turkish typography is a different question, which AFAIK prefers simply an f-glyph followed by an i-glyph with no ligaturing. IIRC, Portuguese traditional typography also avoids the fi-ligature, even though the language has no dotless-i. > The same ligature could be used for the encoded sequence <f, dotless-i>, I doubt that any font has a ligature for this combination at all. > So the encoded sequence <i, dot-above> is now made "equivalent" > (for rendering purpose) to <dotless-i, dot-above> (despite they are > not canonically equivalent per UAX#15: NFC/D) and not "equivalent" > to an isolated <i> (not followed above diacritics)... There is no guarantee that the native i dot looks the same as the dot above in a given font (it may have different vertical kerning or even a different shape), nor is there any guarantee that the i with its dot removed looks the same as the dotless-i. -- John Cowan www.ccil.org/~cowan www.reutershealth.com [EMAIL PROTECTED] "'My young friend, if you do not now, immediately and instantly, pull as hard as ever you can, it is my opinion that your acquaintance in the large-pattern leather ulster' (and by this he meant the Crocodile) 'will jerk you into yonder limpid stream before you can say Jack Robinson.'" --the Bi-Coloured-Python-Rock-Snake