X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Findex.js;h=38161302e9cc3f09f27c20b51adb4ec8800887ee;hb=fed01e9044149985b3df74a9225ce68805b8f478;hp=23f1346ce00294099d48f116437815a9a1c1baf3;hpb=d3447bfe8439ab0ecf7cc6cb51ddb065abeca47d;p=clo

diff --git a/src/index.js b/src/index.js
index 23f1346..3816130 100644
--- a/src/index.js
+++ b/src/index.js
@@ -22,38 +22,18 @@ var __importStar = (this && this.__importStar) || function (mod) {
     __setModuleDefault(result, mod);
     return result;
 };
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.OnceOrMoreDo = exports.matchAny = exports.m1TType = exports.tkTreeToSExp = void 0;
+exports.matchAny = exports.tkTreeToSExp = void 0;
 var fs = require('fs');
-const node_process_1 = require("node:process");
-const tk = __importStar(require("./tokenize.js"));
+const js_tokens_1 = __importDefault(require("js-tokens"));
 const util = __importStar(require("util"));
 /**
- * debug reprensenting
- */
-let repr = (x) => { return util.inspect(x, { depth: null }); };
-/**
- * concated 2 `tkTree`s
- * @param x the array to be concated
- * @param y the item or array to ve concated
- * @returns concated tkTree array, or thrown error if can't be concated.
+ *
+ * # REPRESENTATION
  */
-function concat(x, y) {
-    if (Array.isArray(x)) {
-        return x.concat(y);
-    }
-    else {
-        throw new Error("the tkTree can't be concated, because it's not an array.");
-    }
-}
-function slice(x, index, end) {
-    if (Array.isArray(x)) {
-        return x.slice(index, end);
-    }
-    else {
-        throw new Error("the tkTree can't be concated, because it's not an array.");
-    }
-}
 /**
  * convert a `tkTree` AST to S-expr string
  * @param t the `tkTree`
@@ -70,65 +50,21 @@ function tkTreeToSExp(t) {
             str = "%undefined";
         }
         else {
-            str = t.text;
+            str = t.value;
         }
     }
     return str;
 }
 exports.tkTreeToSExp = tkTreeToSExp;
+/**inspect the inner of the representation. */
+let repr = (x) => { return util.inspect(x, { depth: null }); };
 /**
- * @description
- * match one token type.
  *
- * it returns a function which test if the type of first token of the `remained` part of
- *  the argument of the function is `typ` , if it's true, update the `TokenMatcheePair` wrapped
- * in `Some`. Otherwise, it returns `None`.
- *  * @param typ : the type to be test.
- * @returns the updated `TokenMatcheePair` wrapped in `Some(x)` or `None`.
+ * # PARSER UNITS
  */
-function m1TType(typ) {
-    return (m) => {
-        if (m.remained.length == 0) {
-            return { _tag: "None" };
-        }
-        /**
-         * token to be matched
-         * */
-        const ttbm = m.remained[0];
-        if (ttbm.type == typ) {
-            let new_matched = m.matched.concat(ttbm);
-            let result = {
-                _tag: "Some", value: {
-                    matched: new_matched,
-                    remained: m.remained.slice(1),
-                    ast: ([ttbm]),
-                }
-            };
-            return result;
-        }
-        else {
-            return { _tag: "None" };
-        }
-    };
+function toSome(x) {
+    return { _tag: "Some", value: x };
 }
-exports.m1TType = m1TType;
-;
-/**
- * type int
- */
-let tInt = m1TType(tk.TokenType.INT);
-let tId = m1TType(tk.TokenType.ID);
-let tAdd = m1TType(tk.TokenType.I_ADD);
-let tSub = m1TType(tk.TokenType.I_SUB);
-let tMul = m1TType(tk.TokenType.I_MUL);
-let tDiv = m1TType(tk.TokenType.I_DIV);
-let tLParen = m1TType(tk.TokenType.L_PAREN);
-let tRParen = m1TType(tk.TokenType.R_PAREN);
-let tComma = m1TType(tk.TokenType.COMMA);
-let toSome = tk.toSome;
-node_process_1.argv.forEach((val, index) => {
-    console.log(`${index}=${val}`);
-});
 /**
  * like `m ==> f` in ocaml
  * @param m matchee wrapped
@@ -142,32 +78,14 @@ function thenDo(m, f) {
     else {
         var a = f(m.value);
         if (a._tag == "Some") {
-            a.value.ast = concat(m.value.ast, a.value.ast);
+            a.value.ast = m.value.ast.concat(a.value.ast);
         }
         return a;
     }
 }
-/**
- * like `f1 | f2` in regex
- * @param f1 the first tried function
- * @param f2 the second tried function
- * @returns wrapped result
- */
-function orDo(f1, f2) {
-    return (x) => {
-        let res1 = f1(x);
-        if (res1._tag == "Some") {
-            return res1;
-        }
-        else {
-            let res2 = f2(x);
-            return res2;
-        }
-    };
-}
 /**
  *
- * @param m : the `MatcheePair` to be consumed.
+ * @param m : the `TokenPair` to be consumed.
  * @returns if the length of `m.remained` >= 1; consumes the matchee by 1 token
  *  and wraps it in `Some`,
  * otherwise, returns `None`.
@@ -188,211 +106,81 @@ function matchAny(m) {
 }
 exports.matchAny = matchAny;
 /**
- * Danger : Maybe it's not enough to work.
-* @description repeating matching function `f`
-* zero or more times, like the asterisk `*` in regex `f*` .
-* @param f : the function to be repeated 0+ times.
-* @returns:the combined function
-*/
-function OnceOrMoreDo(f) {
+ * like `f1 | f2` in regex
+ * @param f1 the first tried function
+ * @param f2 the second tried function
+ * @returns wrapped result
+ */
+function orDo(f1, f2) {
     return (x) => {
-        var wrappedOldX = { _tag: "Some", value: x };
-        var wrappedNewX = wrappedOldX;
-        var counter = -1;
-        while (wrappedNewX._tag != "None") {
-            wrappedOldX = wrappedNewX;
-            wrappedNewX = thenDo(wrappedOldX, f);
-            counter += 1;
+        let res1 = f1(x);
+        if (res1._tag == "Some") {
+            return res1;
         }
-        ;
-        if (counter <= 0) {
-            return { _tag: "None" };
+        else {
+            let res2 = f2(x);
+            return res2;
         }
-        let ast = wrappedOldX.value.ast;
-        wrappedOldX.value.ast = ast.slice(ast.length - counter);
-        console.log(repr(wrappedOldX.value.ast));
-        return wrappedOldX;
     };
 }
-exports.OnceOrMoreDo = OnceOrMoreDo;
 /**
- * aux function for midfix operator
- * @param f function
- * @param signal the rule name
- * @returns
+ * like regex [^c]
+ * @param f input token function. one token only.
+ * @returns combined finction
  */
-let midfix = (f, signal) => (x) => {
-    var a = f(x);
-    if (a._tag == "Some") {
-        let ast_tail = 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, signal) => (x) => {
-    var a = f(x);
-    if (a._tag == "Some") {
-        console.log("$$$" + repr(a.value.ast));
-        let inner = a.value.ast[a.value.ast.length - 2];
-        var ast_middle;
-        if (Array.isArray(inner)) {
-            ast_middle = inner;
+function notDo(f) {
+    return (x) => {
+        let res1 = f(x);
+        if (res1._tag == "Some") {
+            return { _tag: "None" };
         }
         else {
-            ast_middle = [inner];
+            let res2 = matchAny(x);
+            return res2;
         }
-        let new_ast = [ast_middle];
-        a.value.ast = new_ast;
-    }
-    return a;
-};
-/** single1 = tInt | "(" expr ")"*/
-let single1 = circumfix((x) => thenDo(thenDo(thenDo(toSome(x), tLParen), expr), tRParen), "fac1");
-let single2 = tInt;
-let single = orDo(single1, single2);
-/** args = single "," args | single */
-let args1 = (x) => {
-    var ret = thenDo(thenDo(thenDo(toSome(x), single), tComma), args);
-    if (ret._tag == "Some") {
-        let retLength = ret.value.ast.length;
-        ret.value.ast = [[ret.value.ast[retLength - 3]].concat(ret.value.ast[retLength - 1])];
-        console.log("$$" + repr(ret.value.ast));
-    }
-    return ret;
-};
-let args2 = single;
-let args = orDo(args1, args2);
-/** callees = "(" args ")" | "(" ")" */
-let callees1 = circumfix((x) => thenDo(thenDo(thenDo(toSome(x), tLParen), args), tRParen), "callees1");
-let callees2 = (x) => {
-    let ret = thenDo(thenDo(toSome(x), tLParen), tRParen);
-    if (ret._tag == "Some") {
-        let new_ast = [[]];
-        ret.value.ast = new_ast;
-    }
-    return ret;
-};
-let callees = orDo(callees1, callees2);
-/** %apply R combinating token */
-let applyToken = {
-    text: "%apply",
-    type: tk.TokenType.ID,
-    col: 0,
-    ln: 0,
-};
-/** facAux = callees facAux |  callees */
-let facAux1 = (x) => {
-    var ret = thenDo(thenDo(toSome(x), callees), facAux);
-    if (ret._tag == "Some") {
-        console.log("1232345" + repr(tkTreeToSExp(ret.value.ast[ret.value.ast.length - 1])));
-        let last1 = ret.value.ast[ret.value.ast.length - 1];
-        let last2 = ret.value.ast[ret.value.ast.length - 2];
-        let b = [applyToken];
-        ret.value.ast = [b.concat([last2, last1])];
-        console.log("11111" + repr(tkTreeToSExp(ret.value.ast)));
-    }
-    ;
-    return ret;
-};
-let facAux2 = callees;
-let facAux = orDo(facAux1, facAux2);
-/** fac = single facAux | single
- * Issue1 to be fixed.
- */
-let fac1 = (x) => {
-    var ret = thenDo(thenDo(toSome(x), single), facAux);
-    if (ret._tag == "Some") {
-        console.log("777" + repr(tkTreeToSExp(ret.value.ast)));
-        ret.value.ast = [applyToken, ret.value.ast[ret.value.ast.length - 2],
-            ret.value.ast[ret.value.ast.length - 1]];
-        ret.value.ast;
-        rearrangeTree(ret.value.ast);
-        console.log("888" + repr(tkTreeToSExp(ret.value.ast)));
-    }
-    return ret;
-};
-let fac2 = single;
-let fac = orDo(fac1, fac2);
-/**
- * rearrangeTree : for applyToken subtree from right-combination to
- * left-combination
- * @input x a ast
- * @return another ast
- */
-function rearrangeTree(x) {
-    if (x !== undefined) {
-        for (var i = 1; i < x.length; i++) {
-            rearrangeTree(x[i]);
+    };
+}
+function matchToken(typeName, value) {
+    return (t) => {
+        let headToken = t.remained[0];
+        if (headToken.type != typeName) {
+            return { _tag: "None" };
         }
-        console.log("@@" + repr(x[0]));
-        if (x[0] == applyToken) {
-            if (Array.isArray(x[2]) && x[2][0] == applyToken) {
-                let rl = rearrangeTree(x[2][1]);
-                let rr = rearrangeTree(x[2][2]);
-                let l = rearrangeTree(x[1]);
-                x[0] = applyToken;
-                x[1] = [applyToken, l, rl];
-                x[2] = rr;
-                console.log("@@==" + repr(x));
-                return x;
+        else {
+            if (value === undefined || value == headToken.value) {
+                let newTokenPair = {
+                    matched: t.matched.concat(headToken),
+                    remained: t.remained.slice(1),
+                    ast: [headToken]
+                };
+                return { _tag: "Some", value: newTokenPair };
             }
             else {
-                x[0] = applyToken;
-                x[1] = rearrangeTree(x[1]);
-                x[2] = rearrangeTree(x[2]);
-                console.log("@@==" + repr(x));
-                return x;
+                return { _tag: "None" };
             }
         }
-        return x;
-    }
+        ;
+    };
 }
+;
 /**
  *
- * term1 = fac (MUL | DIV) fac
- */
-let term1 = midfix((x) => thenDo(thenDo(thenDo(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) => thenDo(thenDo(thenDo(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 tokens2 = tk.tokenize("1(2)");
-let tokens3 = tk.tokenize("1(2)(3)");
-let tokens4 = tk.tokenize("2()(4)");
-//let tokens = tk.tokenize("(4-(3/4))");
-//tk.tokenize(argv[2]);
-let tokensFiltered = tokens4.filter((x) => {
-    return (x.type != tk.TokenType.NL
-        && x.type != tk.TokenType.SP);
-});
-let beta = expr({
+ * # TEST
+ */
+const tokens = Array.from((0, js_tokens_1.default)(`import; foo from\t 'bar';
+import * as util  from 'util';
+
+
+花非花，霧\\{非霧 。{{foo();}}下
+一句`));
+console.log("RESULT=" + repr(tokens));
+var mainTokenPair = {
     matched: [],
-    remained: tokensFiltered,
+    remained: tokens,
     ast: []
-});
-if (beta._tag == "Some") {
-    beta.value.ast = rearrangeTree(beta.value.ast);
-    console.log(tkTreeToSExp(beta.value.ast));
+};
+let a = thenDo(thenDo(toSome(mainTokenPair), matchToken('IdentifierName')), notDo(matchToken('Punctuator', ';')));
+console.log("RESULT=" + repr(a));
+if (a._tag == "Some") {
+    console.log("SEXP=" + tkTreeToSExp(a.value.ast));
 }
-console.log("RESULT=" + repr(beta));