+++ /dev/null
-var fs = require('fs');
-import { argv, resourceUsage } from 'node:process';
-import * as tk from './tokenize.js';
-import * as util from 'util';
-import { drawEllipsePath, reduceRotation } from 'pdf-lib';
-import { isAnyArrayBuffer, isTypedArray } from 'node:util/types';
-import { error } from 'node:console';
-import { isUndefined } from 'node:util';
-
-/**
- * debug reprensenting
- */
-let repr = (x : any)=>{return util.inspect(x, {depth: null})};
-
-/**
- * token tree type.
- */
-type tkTree = tkTree[] | tk.Token
-
-/**
- * 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.
- */
-function concat(x: tkTree, y:tkTree): tkTree[] {
- 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: tkTree, index?:number, end?:number): tkTree[] {
- 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.");
-
- }
-}
-
-/**
- * TokenMatcheePair for tokens' parser combinator
- *
- * matched: the matched (now and before) tokens
- *
- * remained: tokens to be matched
- *
- * ast: abstract syntax tree
- */
-export interface TokenMatcheePair {
- matched: tk.Token[]
- remained: tk.Token[]
- ast : tkTree[]
-}
-
-/**
- * convert a `tkTree` AST to S-expr string
- * @param t the `tkTree`
- * @returns S-expr String
- */
-export function tkTreeToSExp(t: tkTree): string{
- var str = "";
-
- if (Array.isArray(t)){
- let strArray = t.map((x)=>tkTreeToSExp(x));
- str = "(" + strArray.join(" ") + ")";
- }else{
- if (t=== undefined){
- str = "%undefined"
- }else{
- str = t.text;
- }
- }
-
- return str;
-}
-
-/**
- * @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`.
- */
-export function m1TType(typ: tk.TokenType):
- (m: TokenMatcheePair) => tk.Maybe<TokenMatcheePair> {
- return (m: TokenMatcheePair) => {
- 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 : tk.Some<TokenMatcheePair> = {
- _tag: "Some", value: {
- matched: new_matched,
- remained: m.remained.slice(1),
- ast: ([ttbm]),
- }
- };
- return result;
- }
- else {
- return { _tag: "None" };
- }
- }
-};
-
-/**
- * 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;
-
-
-argv.forEach((val, index) => {
- console.log(`${index}=${val}`);
-});
-
-
-/**
- * like `m ==> f` in ocaml
- * @param m matchee wrapped
- * @param f matching function
- * @returns wrapped result
- */
-function thenDo(m : tk.Maybe<TokenMatcheePair>, f : Function){
- if (m._tag == "None"){
- return m;
- }else{
- var a : tk.Maybe<TokenMatcheePair> = f(m.value);
- if (a._tag == "Some"){
- a.value.ast = concat(m.value.ast, 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 : Function, f2 : Function){
- return (x : TokenMatcheePair) =>{
- let res1 : tk.Maybe<TokenMatcheePair> = f1(x);
- if (res1._tag == "Some"){
- return res1;
- }else{
- let res2 : tk.Maybe<TokenMatcheePair> = f2(x);
- return res2;
- }
- }
-}
-
-
-/**
- *
- * @param m : the `MatcheePair` 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`.
- */
-export function matchAny(m: TokenMatcheePair): tk.Maybe<TokenMatcheePair> {
- 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" };
- }
-}
-
-/**
- * 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
-*/
-export function OnceOrMoreDo(f: Function): (x: TokenMatcheePair) =>
- tk.Maybe<TokenMatcheePair> {
- return (x) => {
- var wrappedOldX: tk.Maybe<TokenMatcheePair> = { _tag: "Some", value: x };
- var wrappedNewX: tk.Maybe<TokenMatcheePair> = wrappedOldX;
-
- var counter = -1;
-
- while (wrappedNewX._tag != "None") {
- wrappedOldX = wrappedNewX;
- wrappedNewX = thenDo(wrappedOldX, f);
- counter += 1;
-
- };
-
- if (counter <= 0){
- return { _tag: "None"};
- }
- let ast = wrappedOldX.value.ast ;
- wrappedOldX.value.ast =ast.slice(ast.length-counter);
- console.log(repr(wrappedOldX.value.ast));
-
- return wrappedOldX; };
-}
-
-/**
- * aux function for midfix operator
- * @param f function
- * @param signal the rule name
- * @returns
- */
-let midfix = (f : Function, signal? : string) => (x : TokenMatcheePair)=>{
- var a = f(x);
- if (a._tag == "Some"){
- let ast_tail : tkTree[] = 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 : Function, signal? : string) => (x : TokenMatcheePair)=>{
- var a : tk.Maybe<TokenMatcheePair> = f(x);
- if (a._tag == "Some"){
- console.log("$$$"+repr(a.value.ast));
- let inner = a.value.ast[a.value.ast.length-2];
- var ast_middle : tkTree[];
- // the list should not be (%list) (%apply) (%lambda) etc.
- if (Array.isArray(inner)){
- if ('text' in inner[0] && (inner[0].text.slice(0,1) != "%")){
- ast_middle = inner;
- }
- else{
- ast_middle = [inner];
- }
- }
- else{
- ast_middle = [inner];
- }
- let new_ast = [ast_middle];
- a.value.ast = new_ast;
- }
- return a;
-}
-
-/** single1 = tInt | "(" expr ")"*/
-let single1 = circumfix((x : TokenMatcheePair) =>
- thenDo(thenDo(thenDo(toSome(x), tLParen), expr), tRParen), "fac1");
-let single2= tInt;
-let single = orDo(single1, single2);
-
-/** args = single "," args | single */
-let args1 = (x: TokenMatcheePair)=>{
- var ret = thenDo(thenDo(thenDo(toSome(x), single), tComma), args);
- if (ret._tag == "Some"){
- let retLength = ret.value.ast.length;
- ret.value.ast = [[ret.value.ast[retLength-3]].concat(ret.value.ast[retLength-1])];
- console.log("$$"+repr(ret.value.ast));
- }
- return ret;
-};
-
-let args2 = single;
-
-let args = orDo(args1, args2);
-
-
-/** callees = "(" args ")" | "(" ")" */
-
-
-let callees1 = circumfix((x : TokenMatcheePair) =>
- thenDo(thenDo(thenDo(toSome(x), tLParen), args), tRParen), "callees1");
-let callees2 = (x: TokenMatcheePair)=>{
- let ret = thenDo(thenDo(toSome(x), tLParen), tRParen);
- if (ret._tag == "Some"){
- let new_ast : tkTree[] = [[]];
- 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: TokenMatcheePair)=>{
- 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 : tkTree[] = [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: TokenMatcheePair)=>{
- 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: any) : any {
-
- if (x !== undefined){
- for (var i=1;i<x.length;i++){
- rearrangeTree(x[i]);
- }
- 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{
- x[0] = applyToken;
- x[1] = rearrangeTree(x[1]);
- x[2] = rearrangeTree(x[2]);
- console.log("@@=="+repr(x));
-
-
- return x;
- }
- }
-
- return x;
- }
- }
-
-
-
-
-/**
- *
- * term1 = fac (MUL | DIV) fac
- */
-
-let term1 = midfix((x : TokenMatcheePair)=>
- 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 : TokenMatcheePair)=>
- 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)(5,6)(7,8,9,10)");
-
-//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({
- matched : [] ,
- remained : tokensFiltered,
- ast : []});
-
-
-
-if (beta._tag == "Some"){
- beta.value.ast = rearrangeTree(beta.value.ast);
- console.log(tkTreeToSExp(beta.value.ast));
-
-}
-
-console.log("RESULT="+repr(beta));
-
projects / uann / blobdiff