X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Findex.js;h=8fc8c3947bf805c304da93614435c5f90fd57147;hb=8d03cc503c747bb974c75d39f8b9c0678a9cc91f;hp=e18ebd5a1c4ff82a83542e067c0c39c7c233d41c;hpb=6f2e788329da7702ea96dc28ae04499917ec8152;p=clo

diff --git a/src/index.js b/src/index.js
index e18ebd5..8fc8c39 100644
--- a/src/index.js
+++ b/src/index.js
@@ -23,97 +23,97 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.m1TType = void 0;
+exports.tkTreeToSExp = void 0;
 var fs = require('fs');
-const node_process_1 = require("node:process");
-const tk = __importStar(require("./tokenize.js"));
 const util = __importStar(require("util"));
+const p = __importStar(require("typescript-parsec"));
 /**
- * @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`.
+ * # REPRESENTATION
  */
-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) {
-            m.matched.push(ttbm);
-            return {
-                _tag: "Some", value: {
-                    matched: m.matched,
-                    remained: m.remained.slice(1)
-                }
-            };
-        }
-        else {
-            return { _tag: "None" };
-        }
-    };
-}
-exports.m1TType = m1TType;
-;
-let toSome = tk.toSome;
-let thenDo = tk.thenDo;
-let orDo = tk.orDo;
-node_process_1.argv.forEach((val, index) => {
-    console.log(`${index}=${val}`);
-});
-let commandInput = node_process_1.argv[2];
-let commandInputTokenized = tk.tokenize(commandInput);
-console.log(commandInputTokenized);
 /**
- * matchee pair of commandInputTokenized
+ * convert a `tkTree` AST to S-expr string
+ * @param t the `tkTree`
+ * @returns S-expr String
  */
-let commandTPair = { matched: [],
-    remained: commandInputTokenized };
-let tInt = m1TType(tk.TokenType.INT);
-let tFlo = m1TType(tk.TokenType.FLO);
-let tStr = m1TType(tk.TokenType.STR);
-function tBool(x) {
-    let text = x.remained[0].text;
-    if (text == "true" || text == "false") {
-        return thenDo(toSome(x), m1TType(tk.TokenType.ID));
+function tkTreeToSExp(t) {
+    var str = "";
+    if (Array.isArray(t)) {
+        let strArray = t.map((x) => tkTreeToSExp(x));
+        str = "(" + strArray.join(" ") + ")";
     }
     else {
-        return { _tag: "None" };
+        if (t === undefined) {
+            str = "%undefined";
+        }
+        else {
+            str = t;
+        }
     }
+    return str;
 }
+exports.tkTreeToSExp = tkTreeToSExp;
+/**inspect the inner of the representation. */
+let repr = (x) => { return util.inspect(x, { depth: null }); };
+var TokenKind;
+(function (TokenKind) {
+    TokenKind[TokenKind["Seperator"] = 0] = "Seperator";
+    TokenKind[TokenKind["Semicolon"] = 1] = "Semicolon";
+    TokenKind[TokenKind["Number"] = 2] = "Number";
+    TokenKind[TokenKind["Op"] = 3] = "Op";
+    TokenKind[TokenKind["ExprMark"] = 4] = "ExprMark";
+    TokenKind[TokenKind["Paren"] = 5] = "Paren";
+    TokenKind[TokenKind["SpaceNL"] = 6] = "SpaceNL";
+    TokenKind[TokenKind["Id"] = 7] = "Id";
+    TokenKind[TokenKind["Str"] = 8] = "Str";
+})(TokenKind || (TokenKind = {}));
 /**
- * define the right hand side of a grammar
- * eg. `LHS ::= a + b`
- * @param process  the right hand side processing : eg. `a + b` in `LHS`
- * @param arrange define the order (0 starting) of the elements of the result.
- * ast. : eg. `a + c` is `1 0 2` `(+ a c)`
- * @returns the processed ast.
+ * Parsing
  */
-function gramRHS(process, arrange) {
-    return (m) => {
-        let result = process(m);
-        console.log(`result ${result}`);
-        if (result._tag == "None") {
-            return result;
-        }
-        else {
-            let matched = result.value.matched;
-            let return_array = Array(arrange.length);
-            arrange.forEach((val, index) => {
-                return_array[arrange[index]] = matched[index];
-            });
-            return return_array;
-        }
-    };
+const lexer = p.buildLexer([
+    [true, /^\d+(\.\d+)?/g, TokenKind.Number],
+    [true, /^\;/g, TokenKind.Semicolon],
+    [true, /^[-][-][-]/g, TokenKind.Seperator],
+    [true, /^[\+\-\*\/\&\|\!\^\<\>\~\=\?]+/g, TokenKind.Op],
+    [true, /^\@+/g, TokenKind.ExprMark],
+    [true, /^[()\[\]{}]/g, TokenKind.Paren],
+    [true, /^["]([\"]|[\\].)*["]/g, TokenKind.Str],
+    [true, /^[']([\']|[\\].)*[']/g, TokenKind.Str],
+    [true, /^[()\[\]{}]/g, TokenKind.Paren],
+    [true, /^[^\s\n\t\r;]+/g, TokenKind.Id],
+    [false, /^(\s|\n|\r|\t)+/g, TokenKind.SpaceNL]
+]);
+/**
+ *
+ * # TEST
+ */
+const inputTxt = `import ast;
+---
+122`;
+const PROG = p.rule();
+const UNIT = p.rule();
+const IMPORTS = p.rule();
+const SEMICOLON = p.rule();
+let doubleMinus = { type: 'Punctuator', value: '--' };
+let doubleMinus2 = p.str('--');
+const TERM = p.rule();
+function applyUnit(value) {
+    return value.text;
+}
+function applySemiColon(value) {
+    return value.text;
+}
+function applyParts(first, second) {
+    return ["%clo", first, second[1]];
 }
-var constParser = gramRHS((x) => { return thenDo(toSome(x), orDo(orDo(orDo(tInt, tFlo), tStr), tBool)); }, [0]);
-let tree = constParser(commandTPair);
-console.log(util.inspect(tree, { showHidden: true, depth: null }));
+PROG.setPattern(p.lrec_sc(IMPORTS, p.seq(p.str('---'), UNIT), applyParts));
+function applyImports(input) {
+    let importTail = input[1].map(x => x.text);
+    return ["import"].concat(importTail);
+}
+;
+IMPORTS.setPattern(p.apply(p.seq(p.str('import'), p.rep_sc(p.tok(TokenKind.Id)), SEMICOLON), applyImports));
+SEMICOLON.setPattern(p.apply(p.tok(TokenKind.Semicolon), applySemiColon));
+UNIT.setPattern(p.apply(p.tok(TokenKind.Number), applyUnit));
+let tree = p.expectSingleResult(p.expectEOF(PROG.parse(lexer.parse(inputTxt))));
+console.log("RESULT=" + tkTreeToSExp(tree));