Hiroshi Sakurai hsk
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| /* Syntax of SortOfWhile */ | |
| % Statements | |
| stm(skip()). | |
| stm((S1; S2)) :- stm(S1), stm(S2). | |
| stm(X = E) :- atom(X), aexp(E). | |
| stm(if(E, S1, S2)) :- bexp(E), stm(S1), stm(S2). | |
| stm(while(E; S)) :- bexp(E), stm(S). | |
| stm(or(S1, S2)) :- stm(S1), stm(S2). | |
| stm(par(S1, S2)) :- stm(S1), stm(S2). |