-/**
- * like `f1 | f2` in regex
- * @param f1 the first tried function
- * @param f2 the second tried function
- * @returns wrapped result
- */
-function orDo(f1 : Function, f2 : Function){
- return (x : TokenMatcheePair) =>{
- let res1 : tk.Maybe<TokenMatcheePair> = f1(x);
- if (res1._tag == "Some"){
- return res1;
- }else{
- let res2 : tk.Maybe<TokenMatcheePair> = f2(x);
- return res2;
- }
- }
-
-}
-
-/**
- * aux function for midfix operator
- * @param f function
- * @param signal the rule name
- * @returns
- */
-let midfix = (f : Function, signal? : string) => (x : TokenMatcheePair)=>{
- var a = f(x);
- if (a._tag == "Some"){
- let ast_tail : tkTree[] = slice(a.value.ast,a.value.ast.length-3);
- let new_ast = [ast_tail];
- a.value.ast = new_ast;
-
- console.log("+"+signal+"+"+repr(a));
-
-
- }
- return a;
-}
-
-let circumfix = (f : Function, signal? : string) => (x : TokenMatcheePair)=>{
- var a = f(x);
- if (a._tag == "Some"){
- let inner = a.value.ast[a.value.ast.length-2];
- let ast_middle : tkTree[] = [inner];
- let new_ast = [ast_middle];
- a.value.ast = new_ast;
- }
- return a;
-}
-
-/**
- * TODO: 12(13)(14) only parsed with only 12(13)
- */
-/** single1 = tInt | "(" expr ")"*/
-let single1 = circumfix((x : TokenMatcheePair) =>
- thenDo(thenDo(thenDo(tk.toSome(x), tLParen), expr), tRParen), "fac1");
-let single2= tInt;
-let single = orDo(single1, single2);
-
-/** fac1 = single "(" int ")" | single */
-let fac1Appliee = circumfix((x : TokenMatcheePair) => thenDo(thenDo(thenDo(tk.toSome(x), tLParen), tInt), tRParen), "fac1");
-let fac1 = (x : TokenMatcheePair) =>
- {
- let n = thenDo(thenDo(toSome(x), single), fac1Appliee);
-
- console.log("+"+"bocchitherock"+"+"+repr(n));
-
- return n
- };
-let fac2 = single;
-let fac = orDo(fac1, fac2);
-
-
-/**
- *
- * term1 = fac (MUL | DIV) fac
- */
-
-let term1 = midfix((x : TokenMatcheePair)=>
- thenDo(thenDo(thenDo(tk.toSome(x), fac), orDo(tMul,tDiv)), fac), "term1");
-
-
-/**
- *
- * term2 = int MUL int
- */
-let term2 = fac;
-
-/**
- * term = term1 | term2
- */
-let term = orDo(term1, term2);
-
-
-/**
- *
- * expr1 = term ADD term
- */
-let expr1 = midfix((x : TokenMatcheePair)=>
- thenDo(thenDo(thenDo(tk.toSome(x), term), orDo(tAdd,tSub)), term), "expr1");
-/**
- * expr2 = term
- */
-let expr2 = term;
-
-/**
- * expr = expr1 | expr2
- */
-let expr = orDo(expr1, expr2);
-
-
-
-let tokens = tk.tokenize("12(13)(14)");
-//let tokens = tk.tokenize("(4-(3/4))");
-//tk.tokenize(argv[2]);
-
-let tokensFiltered = tokens.filter(
- (x)=>{return (x.type != tk.TokenType.NL
- && x.type != tk.TokenType.SP)});