X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Findex.js;h=38161302e9cc3f09f27c20b51adb4ec8800887ee;hb=fed01e9044149985b3df74a9225ce68805b8f478;hp=4163e92ef817fdc17ff1d4deda28ceedc56fadba;hpb=1a7598fd6e01515661591a41320a63451cb82d5f;p=clo

diff --git a/src/index.js b/src/index.js
index 4163e92..3816130 100644
--- a/src/index.js
+++ b/src/index.js
@@ -22,89 +22,49 @@ 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.m1TType = 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
+ *
+ * # REPRESENTATION
  */
-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.
+ * convert a `tkTree` AST to S-expr string
+ * @param t the `tkTree`
+ * @returns S-expr String
  */
-function concat(x, y) {
-    if (Array.isArray(x)) {
-        return x.concat(y);
+function tkTreeToSExp(t) {
+    var str = "";
+    if (Array.isArray(t)) {
+        let strArray = t.map((x) => tkTreeToSExp(x));
+        str = "(" + strArray.join(" ") + ")";
     }
     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.");
-    }
-}
-/**
- * @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`.
- */
-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;
+        if (t === undefined) {
+            str = "%undefined";
         }
         else {
-            return { _tag: "None" };
+            str = t.value;
         }
-    };
+    }
+    return str;
 }
-exports.m1TType = m1TType;
-;
+exports.tkTreeToSExp = tkTreeToSExp;
+/**inspect the inner of the representation. */
+let repr = (x) => { return util.inspect(x, { depth: null }); };
 /**
- * type int
+ *
+ * # PARSER UNITS
  */
-let tInt = m1TType(tk.TokenType.INT);
-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 toSome = tk.toSome;
-node_process_1.argv.forEach((val, index) => {
-    console.log(`${index}=${val}`);
-});
+function toSome(x) {
+    return { _tag: "Some", value: x };
+}
 /**
  * like `m ==> f` in ocaml
  * @param m matchee wrapped
@@ -118,11 +78,33 @@ 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;
     }
 }
+/**
+ *
+ * @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`.
+ */
+function matchAny(m) {
+    if (m.remained.length >= 1) {
+        return {
+            _tag: "Some", value: {
+                matched: m.matched.concat(m.remained[0]),
+                remained: m.remained.slice(1),
+                ast: [m.remained[0]],
+            }
+        };
+    }
+    else {
+        return { _tag: "None" };
+    }
+}
+exports.matchAny = matchAny;
 /**
  * like `f1 | f2` in regex
  * @param f1 the first tried function
@@ -142,89 +124,63 @@ function orDo(f1, f2) {
     };
 }
 /**
- * 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") {
-        let inner = a.value.ast[a.value.ast.length - 2];
-        let ast_middle = [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) => 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) => thenDo(thenDo(thenDo(tk.toSome(x), tLParen), tInt), tRParen), "fac1");
-let fac1 = (x) => {
-    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) => 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);
+function notDo(f) {
+    return (x) => {
+        let res1 = f(x);
+        if (res1._tag == "Some") {
+            return { _tag: "None" };
+        }
+        else {
+            let res2 = matchAny(x);
+            return res2;
+        }
+    };
+}
+function matchToken(typeName, value) {
+    return (t) => {
+        let headToken = t.remained[0];
+        if (headToken.type != typeName) {
+            return { _tag: "None" };
+        }
+        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 {
+                return { _tag: "None" };
+            }
+        }
+        ;
+    };
+}
+;
 /**
  *
- * expr1 = term ADD term
- */
-let expr1 = midfix((x) => thenDo(thenDo(thenDo(tk.toSome(x), term), orDo(tAdd, tSub)), term), "expr1");
-/**
- * expr2 = term
+ * # TEST
  */
-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);
-});
-let wrappedTokens = tk.toSome({
-    matched: [],
-    remained: tokensFiltered,
-    ast: []
-});
-let beta = expr({
+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: []
-});
-console.log("RESULT=" + repr(beta));
+};
+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));
+}