containers.fea

@default = [h];
@start = [h.start];
@end = [h.end];
@middle01 = [h.01];
@middle02 = [h.02];
@middle03 = [h.03];
@middle04 = [h.04];
@middle05 = [h.05];

feature liga {
    sub @default' @default by @start;
    sub @start @default' by @end;
    
    lookup extender01 {
        sub @start @start' by @middle01;
        sub @middle01 @start' by @middle02;
        sub @middle02 @start' by @middle03;
        sub @middle03 @start' by @middle04;
        sub @middle04 @start' by @middle05;
        sub @middle05 @start' by @middle01;
    } extender01;
} liga;