"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+ if (k2 === undefined) k2 = k;
+ var desc = Object.getOwnPropertyDescriptor(m, k);
+ if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+ desc = { enumerable: true, get: function() { return m[k]; } };
+ }
+ Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+ if (k2 === undefined) k2 = k;
+ o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+ Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+ o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+ if (mod && mod.__esModule) return mod;
+ var result = {};
+ if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+ __setModuleDefault(result, mod);
+ return result;
+};
Object.defineProperty(exports, "__esModule", { value: true });
-exports.tokenize = exports.zeroOrOnceDo = exports.notDo = exports.zeroOrMoreDo = exports.orDo = exports.thenDo = exports.charToCodepoint = exports.matchRange = exports.matchAny = exports.match1Char = void 0;
+exports.match1token = void 0;
var fs = require('fs');
-/**
- * wrap a x in a `Some(T)`
- * @param x : variable to be wrapped.
- * @returns wrapped `x`.
- */
-function toSome(x) {
- return { _tag: "Some", value: x };
-}
+const tk = __importStar(require("./tokenize.js"));
+let b = tk.tokenize("2+2");
/**
* @description
* it returns a function which test if the first char of the `remained` part of
* the argument of the function is `c`, if it's true, update the `MatchedPair` wrapped
* in `Some`. Otherwise, it returns `None`.
- * * @param c : the char to be test.
+ * * @param t : the char to be test.
* @returns the updated `MatchedPair` wrapped in `Some(x)` or `None`.
*/
-function match1Char(c) {
+function match1token(t) {
return (m) => {
if (m.remained.length == 0) {
return { _tag: "None" };
}
- const charToBeMatched = m.remained[0];
- if (charToBeMatched === c) {
- return { _tag: "Some", value: {
- matched: m.matched + charToBeMatched,
- remained: m.remained.substring(1)
- } };
+ const tokenToBeMatched = m.remained[0];
+ if (tokenToBeMatched === t) {
+ m.matched.push(tokenToBeMatched);
+ return {
+ _tag: "Some", value: {
+ matched: m.matched,
+ remained: m.remained.slice(1)
+ }
+ };
}
else {
return { _tag: "None" };
}
};
}
-exports.match1Char = match1Char;
+exports.match1token = match1token;
;
-/**
- *
- * @param m : the `MatcheePair` to be consumed.
- * @returns if the length of `m.remained` >= 1; consumes the matchee by 1 char and wraps it in `Some`,
- * otherwise, returns `None`.
- */
-function matchAny(m) {
- if (m.remained.length >= 1) {
- return { _tag: "Some", value: {
- matched: m.matched + m.remained[0],
- remained: m.remained.substring(1)
- } };
- }
- else {
- return { _tag: "None" };
- }
-}
-exports.matchAny = matchAny;
-/**
- * @description
- * it returns a function which test if the first char of the `remained` part of
- * the argument of the function is between `l` and `u`, if it's true, update the `MatchedPair` wrapped
- * in `Some`. Otherwise, it returns `None`.
- * * @param l : lower bound char, 1-char string
- * * @param u : upper bound char, 1-char string
- * @returns the updated `MatchedPair` wrapped in `Some(x)` or `None`.
- */
-function matchRange(l, u) {
- let lCodepoint = charToCodepoint(l);
- let uCodepoint = charToCodepoint(u);
- if (l > u) {
- throw new Error("Error: the codepoint of `" + l + "` is not smaller than `" + u + "`)");
- }
- return (m) => {
- if (m.remained.length < 1) {
- return { _tag: "None" };
- }
- const charToBeMatched = m.remained[0];
- const codePointToBeMatched = charToCodepoint(charToBeMatched);
- if (codePointToBeMatched >= lCodepoint && codePointToBeMatched <= uCodepoint) {
- return { _tag: "Some", value: {
- matched: m.matched + charToBeMatched,
- remained: m.remained.substring(1)
- } };
- }
- else {
- return { _tag: "None" };
- }
- };
-}
-exports.matchRange = matchRange;
-;
-/**
- * convert the one-char string to codepoint.
- * @param s : the string to code point.
- * @returns if `s.length > 1` return error; otherwise, return the codepoint of `s`.
- */
-function charToCodepoint(s) {
- if (s.length > 1) {
- throw new Error("Error: the length of input string for " + s + "is " + s.length + `,
- however, it should be 1.`);
- }
- else {
- return s.charCodeAt(0);
- }
-}
-exports.charToCodepoint = charToCodepoint;
-/**
- * @description thendo(input, f, ...) like
- * a ==> f
- * @param input: the wrapped input.
- * @param f: the function to be applied.
- *
- * @returns:the applied wrapped result `MatcheePair`.
- */
-function thenDo(input, f) {
- if (input._tag == "None") {
- return input;
- }
- else {
- let inner = input.value;
- return f(inner);
- }
-}
-exports.thenDo = thenDo;
-/**
- * @description "or", like the regex `( f1 | f2 )` .
- * It returns a function `f` of which the argument is`x`.
- * if `f1(x)` is None, then `f` returns `f2(x)`. Otherwise,
- * `F` returns `f1(x)`.
- * @param f1 : 1st function to be compared
- * @param f2 : 2nd function to be compared
- * @returns:the combined function
- */
-function orDo(f1, f2) {
- return (x) => {
- let f1x = (f1(x));
- {
- if (f1x._tag == "None") {
- return f2(x);
- }
- else {
- return f1x;
- }
- }
- };
-}
-exports.orDo = orDo;
-/**
-* @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 zeroOrMoreDo(f) {
- return (x) => {
- var wrapped_old_x = { _tag: "Some", value: x };
- var wrapped_new_x = wrapped_old_x;
- while (wrapped_new_x._tag != "None") {
- wrapped_old_x = wrapped_new_x;
- wrapped_new_x = thenDo(wrapped_old_x, f);
- }
- ;
- return wrapped_old_x;
- };
-}
-exports.zeroOrMoreDo = zeroOrMoreDo;
-/**
-* @description Not. like the `^` inside regex of [^f].
-* returns a function `F(x)` such that if `f(x)` is `None`,
-* returns the x consuming a char; if `f(x)` is not None, F(x)
-* returns `None`.
-* @param f: the function forbidden to be matched.
-* @returns: combined function `F`.
-*/
-function notDo(f) {
- return (x) => {
- let wrapped_x = {
- _tag: "Some",
- value: x
- };
- let f_x = thenDo(wrapped_x, f);
- if (f_x._tag != "None") {
- return { _tag: "None" };
- }
- else {
- return thenDo(wrapped_x, matchAny);
- }
- };
-}
-exports.notDo = notDo;
-/**
- * if `x` is matched by `f` once, returns `f(x)`. Otherwise,
- * returns x
- * similar to `?` in regex `f?`.
- * @param f : the function to be matched
- * @returns return wrapped f(x)
- */
-function zeroOrOnceDo(f) {
- return (x) => {
- var wrapped_old_x = { _tag: "Some", value: x };
- var wrapped_new_x = thenDo(wrapped_old_x, f);
- if (wrapped_new_x._tag != "None") {
- return wrapped_new_x;
- }
- else {
- return wrapped_old_x;
- }
- };
-}
-exports.zeroOrOnceDo = zeroOrOnceDo;
-function tokenize(input) {
- var input_matchee_pair = toSome({ matched: "",
- remained: input });
- // integer = ([+]|[-])\d\d?
- let integer = (x) => {
- let wrapped_x = toSome(x);
- let plusMinus = orDo(match1Char('+'), match1Char('-')); // ([+]|[-])
- let d = matchRange('0', '9'); // \d
- return thenDo(thenDo(thenDo(wrapped_x, zeroOrOnceDo(plusMinus)), d), zeroOrMoreDo(d));
- };
- console.log(input + ", result: ");
- console.log(thenDo(input_matchee_pair, integer));
-}
-exports.tokenize = tokenize;
-tokenize("+123");
-tokenize("123");
-tokenize("-123");
-tokenize(" 123");
-tokenize("c123");
+let c = tk.toSome(b);
+console.log(thenDo(c, match1token(tk.tokenize("+")[0])));
projects / clo / blobdiff