var fs = require('fs');
-
-type Some<T> = { _tag: "Some"; value: T };
-type None = {_tag: "None"};
+import { argv, resourceUsage } from 'node:process';
+import * as tk from './tokenize.js';
+import * as util from 'util';
+import { reduceRotation } from 'pdf-lib';
/**
- * @description Like the `Some(a)` and `None` in Rust.
- *
- * @example
- * ```ts
- * let exam1 : Maybe<Number> = { _tag: "Some", value: 12 };
- * let exam2 : Maybe<Number> = None;
- * ```
+ * token tree type.
*/
-export type Maybe<T> = Some<T> | None;
+type tkTree = tkTree[] | tk.Token
+export interface TokenMatcheePair {
+ matched: tkTree[]
+ remained: tk.Token[]
+}
-/**
- * @description
- * the pair of the string to be matched later and the string that have been matched
- * @param matched : string have been matched
- * @param remained : string will be tested whether it'll be matched.
- */
-export type MatcheePair = {matched : string; remained : string};
+export interface MaybeTokensAST{
+ maybeTokens: tk.Maybe<TokenMatcheePair>;
+ ast: tkTree;
+}
/**
* @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
+ * 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 c : the char to be test.
- * @returns the updated `MatchedPair` wrapped in `Some(x)` or `None`.
+ * * @param typ : the type to be test.
+ * @returns the updated `TokenMatcheePair` wrapped in `Some(x)` or `None`.
*/
-export function match1Char(c : string) : (m: MatcheePair) => Maybe<MatcheePair> {
- return (m : MatcheePair)=>{
- const charToBeMatched = m.remained[0];
- if (charToBeMatched === c){
- return {_tag: "Some", value :{
- matched : m.matched + charToBeMatched,
- remained : m.remained.substring(1)}};
+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)
+ }
+ };
+ return result;
}
- else{
- return {_tag: "None"};
+ else {
+ return { _tag: "None" };
}
}
};
+let toSome = tk.toSome;
+let thenDo = tk.thenDo;
+let zeroOrOnceDo = tk.zeroOrOnceDo;
+let orDo = tk.orDo;
+let zeroOrMoreDo = tk.zeroOrMoreDo;
+
+
+argv.forEach((val, index) => {
+ console.log(`${index}=${val}`);
+});
+
+let commandInput = "int a str b"//argv[2];
+let commandInputTokenized = tk.tokenize(commandInput);
+let commandInputTokenizedFiltered = commandInputTokenized.filter(
+ (x : tk.Token)=>{return x.type != tk.TokenType.SP &&
+ x.type != tk.TokenType.NL});
+console.log("aaa: "+util.inspect(commandInputTokenizedFiltered, { showHidden: true, depth: null }));
+
/**
- * 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`.
+ * matchee pair of commandInputTokenized
*/
-export function charToCodepoint(s : string): number{
- if (s.length > 1){
- throw new Error("Error: the length of input string for "+s+ "is "+s.length+`,
- however, it should be 1.`);
+let commandTPair : TokenMatcheePair = {matched:[],
+ remained: commandInputTokenizedFiltered};
+
+
+let tInt = m1TType(tk.TokenType.INT);
+let tFlo = m1TType(tk.TokenType.FLO);
+let tStr = m1TType(tk.TokenType.STR);
+let tId = m1TType(tk.TokenType.ID);
+let tApos = m1TType(tk.TokenType.APOS);
+
+
+function tBool (x : TokenMatcheePair) :tk.Maybe<TokenMatcheePair> {
+ let text = x.remained[0].text
+ if (text == "true" || text == "false"){
+ return thenDo(toSome(x), m1TType(tk.TokenType.ID));
}else{
- return s.charCodeAt(0);
+ return {_tag : "None"};
}
}
/**
- * @description thendo(input, f, ...) like
- * a ==> f
+ * 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.
*/
-export function thenDo<T>(input : Maybe<T>, f : Function) : Maybe<T>{
- if (input._tag == "None"){
- return input;
+function gramRHS (process: Function, arrange : number[]){
+ return (m : TokenMatcheePair)=>{
+
+ let middle : tk.Maybe<TokenMatcheePair> = process(m);
+
+ console.log("Middle"+util.inspect(middle, { showHidden: true, depth: null }));
+
+ if (middle._tag == "None"){
+ return middle;
}
else{
- let inner = input.value;
- return f(inner);
+ let matched = middle.value.matched;
+ let arrLength = arrange.length;
+ let returnRrray : tkTree[] = Array(arrange.length);
+
+ arrange.forEach((val, index) => {
+ returnRrray[arrange[index]] = matched[index];
+ });
+
+ let matchedTmp1Length = matched.length-arrLength;
+ console.log(matchedTmp1Length);
+ var matchedTmp1 : tkTree[] = matched
+ .slice(0,matchedTmp1Length);
+
+ console.log("matchedTmp1"+util.inspect(matchedTmp1, { showHidden: true, depth: null }));
+ console.log("returnRrray"+util.inspect(returnRrray, { showHidden: true, depth: null }));
+ matchedTmp1.push(returnRrray);
+
+
+ let result : tk.Some<TokenMatcheePair> = {_tag:"Some",
+ value : {matched : matchedTmp1,
+ remained : middle.value.remained}};
+ return result;
+ }
+ }
+}
+
+/**
+ * typeABS ::= "'" ID
+ */
+var typeABS = (x : TokenMatcheePair)=>
+{
+ var result = thenDo(thenDo(toSome(x),tApos),tId);
+ if (result._tag == "Some" && "text" in result.value.matched[1]){
+ var realToken : tk.Token = result.value.matched[1];
+ realToken.text = "'"+realToken.text;
+ result.value.matched = [realToken];
}
+ return result;
}
+
+/**
+ * TypeId ::= typeABS | ID
+ */
+var typeName = (x : TokenMatcheePair)=>
+{
+ return thenDo(toSome(x), orDo(typeABS, tId));
+}
+
+/**
+ * CONST ::= INT | STR | FLO | BOOL
+ */
+
+/**
+ * TODO: 要用 debugger 檢查分析問題
+ */
+var constParser = gramRHS((x : TokenMatcheePair)=>
+ {return thenDo(toSome(x),orDo(orDo(orDo(tInt,tFlo),tStr),tBool))}, [0]);
+
+/**
+ * storing the tree
+ */
+var astTree : tkTree = [];
+
+/**
+ * TYPE_PAIR ::= TYP_ID ID
+ */
+var typePair = (x : MaybeTokensAST)=>
+{
+
+
+ let a = thenDo(thenDo(x.maybeTokens, typeName), tId);
+ if (a._tag == "Some"){
+ let matched = a.value.matched;
+ let slice = matched.slice(matched.length-2);
+ console.log("slice"+slice);
+
+ let b : MaybeTokensAST = {maybeTokens : a, ast : slice};
+ return b;
+ }
+ else{
+ let b : MaybeTokensAST= {maybeTokens : a, ast : []};
+ return b;
+ }
+}
+
+/**
+ * function's arguments
+ * FN_ARGS = TYPE_PAIR ("," TYPE_PAIR)+
+ */
+
+var fnArgs = (x : TokenMatcheePair)=>
+ {
+ let wrapper : MaybeTokensAST = {maybeTokens : toSome(x), ast : []};
+ let a = typePair(wrapper);
+ console.log("AAAAA"+util.inspect(a, { showHidden: true, depth: null }));
+ let abanibi = typePair(a);
+ console.log("ABNB"+util.inspect(abanibi, { showHidden: true, depth: null }));
+
+
+ return {maybeTokens : abanibi.maybeTokens, ast : [a.ast, abanibi.ast]};
+
+ };
+
+let tree = fnArgs(commandTPair);
+console.log("CHRANN"+util.inspect(tree, { showHidden: true, depth: null }));
projects / clo / blobdiff