- if (counter <= 0){
- return { _tag: "None"};
- }
- let ast = wrappedOldX.value.ast ;
- wrappedOldX.value.ast =ast.slice(ast.length-counter);
- console.log(repr(wrappedOldX.value.ast));
-
- return wrappedOldX; };
-}
-
-/**
- * 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);
-
-/** func = single | single "(" single ")"
- * i.e.
- *
- * func = single | func_aux ( int )
- *
-*/
-
-
-/** fac = single ["(" single ")"]? | single */
-let fac1Appliee = circumfix((x : TokenMatcheePair) => thenDo(thenDo(thenDo(tk.toSome(x), tLParen), tInt), tRParen), "fac1");
-let fac1 = (x : TokenMatcheePair) =>
- {
- let raw = thenDo(thenDo(toSome(x), single), OnceOrMoreDo(fac1Appliee));
- console.log("+"+"火鳥"+"+"+repr(raw));
-
-
-
- if (raw._tag == "Some"){
-
-
- var result : tkTree = raw.value.ast[0];
- let applyToken : tk.Token = {text: '%apply', ln:0, col:0};
- for (var i=1; i<raw.value.ast.length; i++){
- result = [applyToken, result, raw.value.ast[i]];
- }
-
- console.log("+"+"hitori"+"+"+repr(result));
-
- if (!Array.isArray(result)){
- raw.value.ast = [result];
- }else{
- raw.value.ast = result;
- }
- }
-
-
-
-
- return raw;
- };
-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("1");
-
-//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)});
-
-let wrappedTokens : tk.Maybe<TokenMatcheePair> =
- tk.toSome({
- matched : [] ,
- remained : tokensFiltered,
- ast : []});
-
-let beta = expr({
- matched : [] ,
- remained : tokensFiltered,
- ast : []});
-
-if (beta._tag == "Some"){
- console.log(tkTreeToSExp(beta.value.ast));
-}
-
-console.log("RESULT="+repr(beta));