1lookup ChainedSingleSubst { 2 sub [one two] three A' by A.sc; 3 sub [B - D]' seven [eight nine] by [B.sc - D.sc]; 4} ChainedSingleSubst; 5 6lookup ChainedMultipleSubst { 7 sub [A - C a - c] [D d] E c_t' V [W w] [X - Z x - z] by c t; 8} ChainedMultipleSubst; 9 10lookup ChainedAlternateSubst { 11 sub [space comma semicolon] e' from [e e.begin]; 12} ChainedAlternateSubst; 13 14lookup ChainedLigatureSubst { 15 sub A [C c]' [T t]' Z by c_t; 16} ChainedLigatureSubst; 17 18lookup ChainedContextualSubst { 19 sub A D E c_t' lookup ChainedMultipleSubst V W X; 20} ChainedContextualSubst; 21 22feature test { 23 lookup ChainedSingleSubst; 24 lookup ChainedMultipleSubst; 25 lookup ChainedAlternateSubst; 26 lookup ChainedLigatureSubst; 27 lookup ChainedContextualSubst; 28} test; 29