git.kianting.info Git - clo/blob - src/index.js

   1 "use strict";
   2 var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
   3     if (k2 === undefined) k2 = k;
   4     var desc = Object.getOwnPropertyDescriptor(m, k);
   5     if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
   6       desc = { enumerable: true, get: function() { return m[k]; } };
   7     }
   8     Object.defineProperty(o, k2, desc);
   9 }) : (function(o, m, k, k2) {
  10     if (k2 === undefined) k2 = k;
  11     o[k2] = m[k];
  12 }));
  13 var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
  14     Object.defineProperty(o, "default", { enumerable: true, value: v });
  15 }) : function(o, v) {
  16     o["default"] = v;
  17 });
  18 var __importStar = (this && this.__importStar) || function (mod) {
  19     if (mod && mod.__esModule) return mod;
  20     var result = {};
  21     if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
  22     __setModuleDefault(result, mod);
  23     return result;
  24 };
  25 Object.defineProperty(exports, "__esModule", { value: true });
  26 exports.match1token = void 0;
  27 var fs = require('fs');
  28 const tk = __importStar(require("./tokenize.js"));
  29 let b = tk.tokenize("2+2");
  30 /**
  31  * @description
  32  * it returns a function which test if the first char of the `remained` part of
  33  *  the argument of the function is `c`, if it's true, update the `MatchedPair` wrapped
  34  * in `Some`. Otherwise, it returns `None`.
  35  *  * @param t : the char to be test.
  36  * @returns the updated `MatchedPair` wrapped in `Some(x)` or `None`.
  37  */
  38 function match1token(t) {
  39     return (m) => {
  40         if (m.remained.length == 0) {
  41             return { _tag: "None" };
  42         }
  43         const tokenToBeMatched = m.remained[0];
  44         if (tokenToBeMatched === t) {
  45             m.matched.push(tokenToBeMatched);
  46             return {
  47                 _tag: "Some", value: {
  48                     matched: m.matched,
  49                     remained: m.remained.slice(1)
  50                 }
  51             };
  52         }
  53         else {
  54             return { _tag: "None" };
  55         }
  56     };
  57 }
  58 exports.match1token = match1token;
  59 ;
  60 let c = tk.toSome(b);
  61 console.log(thenDo(c, match1token(tk.tokenize("+")[0])));