1\font\fontA="[Iwona-Regular.otf]" 2\font\fontB="[Iwona-Regular.otf]:mapping=tex-text" 3 4\uselanguage{italian} 5 6\newdimen\savehsize 7\savehsize\hsize 8 9\def\test#1#2{{\tt#1}\endgraf\hsize=3pt\noindent #2\endgraf\hsize=\savehsize} 10 11\def\testA#1{\test{#1}{a dell'amicizia}} 12\def\testB#1{\test{#1}{dell'amicizia}} 13 14\fontA 15 16\testA{Without lccode} 17 18\bgroup 19\lccode"27="27 20\testA{With lccode 27->27} 21\egroup 22 23 24\fontB 25 26\testA{Without lccode (with tex-text)} 27 28\bgroup 29\lccode"2019="0027 30\testA{With lccode 2019->27 (with tex-text)} 31\egroup 32 33\bgroup 34\lccode"2019="2019 35\testA{With lccode 2019->2019 (with tex-text)} 36 37\testB{the same (why is there no break?) ...} 38\egroup 39 40\bye 41