- 20230907-08:強化`tokenize`。
- 20230910 : add basic parser `CONST` rule, and add the grammar rule.
- 20230914-15: 追加一寡 tokenizer ê 功能。
+ - 20230918: 重新tuì下kàu頂起做parser. add rule
--- /dev/null
+expr = int | int add int # expr1 and #expr2
\ No newline at end of file
--- /dev/null
+let sqrtSum = (int x, int y) -> int {
+let x2 = x * x;
+let y2 = y * y;
+return x2+y2;
+}
+
+let pi = 3.14159;
+let _2p = (intToFLo 2) *. pi;
+
+let c = if (2 == 2) then 2 else 3;
+
+let aStr = "hello";
+
+let rec fac = (int n)-> int {
+ if n == 0 then 1 else (fac (n - 1));};
+
+
+type student = Student {int id, string name};
+
+let alice = Student {id=20, name="Alice"};
+
+alice.name = "Siobhan";
+
+let customAnd = (@ 'a has age) ('a x, 'a y) => {'a > 'b};
+
+type list 'a = (Cons 'a (List 'a)) | Nil;
+
+import("alifbata.clo"); # 匯入檔案 alifbata #
+
+t of import :== string -> Option string string
+Error("string") | Ok("import aaa")
+# 型別構造子統一大寫，型別小寫 #
+
+
+
+PROG ::= (STMT | COMMENT | STMT_COMMENT)*
+COMMENT ::= # COMMENT_INNER #
+COMMENT_INNER ::= [^#]+
+STMT ::= (TYPE_DEF | VAR_DEF | SET | EXPR ) ";"
+TYPE_DEF ::= type ID "=" UNION
+ | type ID TYPE_VARS+ "=" UNIOM
+TYPE_VARS = ' ID
+UNION ::= (REC "|" UNION) | REC
+REC ::= ID ( TYPES )
+TYPES ::= TYPE+
+TYPE ::= ID
+
+EXPR ::= if SUB_EXPR then IF_BRANCH else IF_BRANCH | SUB_EXPR
+IF_BRANCH ::= EXPR | { BLOCK }
+SUB_EXPR ::= COMPAREE| COMPAREE (LE|GE|LT|GT|EQ|NE) EXPR
+COMPAREE ::= FAC| (FAC(ADD | SUB) FAC)
+FAC ::= APPLY | (APPLIER (MUL | DIV) APPLY)
+APPLY ::= "(" ID APPLYEE* ")" | APPLYEE
+APPLYEE ::= REF | CONST | EXPR | FUNC
+* CONST ::= INT | STR | FLO | BOOL
+BOOL ::= "true" | "false"
+FUNC ::= FUNC_OPTION? ( ARGS? ) -> TYPE {BLOCK}
+BLOCK ::= PROG (return ID |noReturn) ;
+
+REF ::= VAR "." ID | VAR
+VAR ::= ID
+VAR_DEF ::= "let" VAR "=" EXPR
+SET ::= VAR "=" EXPR
+FUNC_OPTION ::= ( @ TYPE_HAS (, TYPE_HAS)* )
+TYPE_HAS ::= TYPE_VAR "has" ID
\ No newline at end of file
+++ /dev/null
-let sqrtSum = (int x, int y) -> int {
-let x2 = x * x;
-let y2 = y * y;
-return x2+y2;
-}
-
-let pi = 3.14159;
-let _2p = (intToFLo 2) *. pi;
-
-let c = if (2 == 2) then 2 else 3;
-
-let aStr = "hello";
-
-let rec fac = (int n)-> int {
- if n == 0 then 1 else (fac (n - 1));};
-
-
-type student = Student {int id, string name};
-
-let alice = Student {id=20, name="Alice"};
-
-alice.name = "Siobhan";
-
-let customAnd = (@ 'a has age) ('a x, 'a y) => {'a > 'b};
-
-type list 'a = (Cons 'a (List 'a)) | Nil;
-
-import("alifbata.clo"); # 匯入檔案 alifbata #
-
-t of import :== string -> Option string string
-Error("string") | Ok("import aaa")
-# 型別構造子統一大寫，型別小寫 #
-
-
-
-PROG ::= (STMT | COMMENT | STMT_COMMENT)*
-COMMENT ::= # COMMENT_INNER #
-COMMENT_INNER ::= [^#]+
-STMT ::= (TYPE_DEF | VAR_DEF | SET | EXPR ) ";"
-TYPE_DEF ::= type ID "=" UNION
- | type ID TYPE_VARS+ "=" UNIOM
-TYPE_VARS = ' ID
-UNION ::= (REC "|" UNION) | REC
-REC ::= ID ( TYPES )
-TYPES ::= TYPE+
-TYPE ::= ID
-
-EXPR ::= if SUB_EXPR then IF_BRANCH else IF_BRANCH | SUB_EXPR
-IF_BRANCH ::= EXPR | { BLOCK }
-SUB_EXPR ::= COMPAREE| COMPAREE (LE|GE|LT|GT|EQ|NE) EXPR
-COMPAREE ::= FAC| (FAC(ADD | SUB) FAC)
-FAC ::= APPLY | (APPLIER (MUL | DIV) APPLY)
-APPLY ::= "(" ID APPLYEE* ")" | APPLYEE
-APPLYEE ::= REF | CONST | EXPR | FUNC
-* CONST ::= INT | STR | FLO | BOOL
-BOOL ::= "true" | "false"
-FUNC ::= FUNC_OPTION? ( ARGS? ) -> TYPE {BLOCK}
-BLOCK ::= PROG (return ID |noReturn) ;
-ARGS ::= TYPE (TYPE_VARS | ID)
- | TYPE (TYPE_VARS | TYPE_VARS) , ARGS
-REF ::= VAR "." ID | VAR
-VAR ::= ID
-VAR_DEF ::= "let" VAR "=" EXPR
-SET ::= VAR "=" EXPR
-FUNC_OPTION ::= ( @ TYPE_HAS (, TYPE_HAS)* )
-TYPE_HAS ::= TYPE_VAR "has" ID
\ No newline at end of file
const node_process_1 = require("node:process");
const tk = __importStar(require("./tokenize.js"));
const util = __importStar(require("util"));
+/**
+ * debug reprensenting
+ */
+let repr = (x) => { return util.inspect(x, { depth: null }); };
+/**
+ * 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, y) {
+ 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, index, end) {
+ 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.");
+ }
+}
/**
* @description
* match one token type.
let result = {
_tag: "Some", value: {
matched: new_matched,
- remained: m.remained.slice(1)
+ remained: m.remained.slice(1),
+ ast: ([ttbm]),
}
};
return result;
}
exports.m1TType = m1TType;
;
-let toSome = tk.toSome;
-let thenDo = tk.thenDo;
-let zeroOrOnceDo = tk.zeroOrOnceDo;
-let orDo = tk.orDo;
-let zeroOrMoreDo = tk.zeroOrMoreDo;
+/**
+ * type int
+ */
+let tInt = m1TType(tk.TokenType.INT);
+let tAdd = m1TType(tk.TokenType.I_ADD);
+let tMul = m1TType(tk.TokenType.I_MUL);
node_process_1.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) => {
- return x.type != tk.TokenType.SP &&
- x.type != tk.TokenType.NL;
-});
-console.log("aaa: " + util.inspect(commandInputTokenizedFiltered, { showHidden: true, depth: null }));
/**
- * matchee pair of commandInputTokenized
+ * like `m ==> f` in ocaml
+ * @param m matchee wrapped
+ * @param f matching function
+ * @returns wrapped result
*/
-let commandTPair = { 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) {
- let text = x.remained[0].text;
- if (text == "true" || text == "false") {
- return thenDo(toSome(x), m1TType(tk.TokenType.ID));
+function thenDo(m, f) {
+ if (m._tag == "None") {
+ return m;
}
else {
- return { _tag: "None" };
+ var a = f(m.value);
+ if (a._tag == "Some") {
+ a.value.ast = concat(m.value.ast, a.value.ast);
+ }
+ return a;
}
}
/**
- * 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.
+ * like `f1 | f2` in regex
+ * @param f1 the first tried function
+ * @param f2 the second tried function
+ * @returns wrapped result
*/
-function gramRHS(process, arrange) {
- return (m) => {
- let middle = process(m);
- console.log("Middle" + util.inspect(middle, { showHidden: true, depth: null }));
- if (middle._tag == "None") {
- return middle;
+function orDo(f1, f2) {
+ return (x) => {
+ let res1 = f1(x);
+ if (res1._tag == "Some") {
+ return res1;
}
else {
- let matched = middle.value.matched;
- let arrLength = arrange.length;
- let returnRrray = Array(arrange.length);
- arrange.forEach((val, index) => {
- returnRrray[arrange[index]] = matched[index];
- });
- let matchedTmp1Length = matched.length - arrLength;
- console.log(matchedTmp1Length);
- var matchedTmp1 = 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 = { _tag: "Some",
- value: { matched: matchedTmp1,
- remained: middle.value.remained } };
- return result;
+ let res2 = f2(x);
+ return res2;
}
};
}
-/**
- * typeABS ::= "'" ID
- */
-var typeABS = (x) => {
- var result = thenDo(thenDo(toSome(x), tApos), tId);
- if (result._tag == "Some" && "text" in result.value.matched[1]) {
- var realToken = result.value.matched[1];
- realToken.text = "'" + realToken.text;
- result.value.matched = [realToken];
+let midfix = (f, signal) => (x) => {
+ var a = f(x);
+ if (a._tag == "Some") {
+ let ast_head = slice(a.value.ast, 0, a.value.ast.length - 3);
+ let ast_tail = 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 result;
+ return a;
};
/**
- * TypeId ::= typeABS | ID
+ *
+ * fac1 = int MUL int
*/
-var typeName = (x) => {
- return thenDo(toSome(x), orDo(typeABS, tId));
+//let fac1 = midfix((x : TokenMatcheePair)=>
+// thenDo(thenDo(thenDo(tk.toSome(x), tInt), tMul), tInt));
+let fac1 = (x) => {
+ let a = midfix((x) => thenDo(thenDo(thenDo(tk.toSome(x), tInt), tMul), tInt), "fac1")(x);
+ return a;
};
/**
- * CONST ::= INT | STR | FLO | BOOL
+ *
+ * fac2 = int MUL int
*/
+let fac2 = tInt;
/**
- * TODO: 要用 debugger 檢查分析問題
+ * fac = fac1 | fac2
*/
-var constParser = gramRHS((x) => { return thenDo(toSome(x), orDo(orDo(orDo(tInt, tFlo), tStr), tBool)); }, [0]);
+let fac = orDo(fac1, fac2);
/**
- * storing the tree
+ *
+ * expr1 = fac ADD fac
*/
-var astTree = [];
+let expr1 = midfix((x) => thenDo(thenDo(thenDo(tk.toSome(x), fac), tAdd), fac), "expr1");
/**
- * TYPE_PAIR ::= TYP_ID ID
+ * expr2 = fac
*/
-var typePair = (x) => {
- 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 = { maybeTokens: a, ast: slice };
- return b;
- }
- else {
- let b = { maybeTokens: a, ast: [] };
- return b;
- }
-};
+let expr2 = fac;
/**
- * function's arguments
- * FN_ARGS = TYPE_PAIR ("," TYPE_PAIR)+
+ * expr = expr1 | expr2
*/
-var fnArgs = (x) => {
- let wrapper = { 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 }));
+let expr = orDo(expr1, expr2);
+let tokens = tk.tokenize("2+3"); //tk.tokenize(argv[2]);
+let tokensFiltered = tokens.filter((x) => {
+ return (x.type != tk.TokenType.NL
+ && x.type != tk.TokenType.SP);
+});
+let wrappedTokens = tk.toSome({
+ matched: [],
+ remained: tokensFiltered,
+ ast: []
+});
+let beta = expr({
+ matched: [],
+ remained: tokensFiltered,
+ ast: []
+});
+console.log(repr(wrappedTokens));
+console.log(repr(beta));
import { argv, resourceUsage } from 'node:process';
import * as tk from './tokenize.js';
import * as util from 'util';
-import { reduceRotation } from 'pdf-lib';
+import { drawEllipsePath, reduceRotation } from 'pdf-lib';
+import { isTypedArray } from 'node:util/types';
+import { error } from 'node:console';
+
+/**
+ * debug reprensenting
+ */
+let repr = (x : any)=>{return util.inspect(x, {depth: null})};
/**
* token tree type.
*/
type tkTree = tkTree[] | tk.Token
-export interface TokenMatcheePair {
- matched: tkTree[]
- remained: 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.");
+
+ }
}
-export interface MaybeTokensAST{
- maybeTokens: tk.Maybe<TokenMatcheePair>;
- ast: tkTree;
+/**
+ * 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[]
}
/**
let result : tk.Some<TokenMatcheePair> = {
_tag: "Some", value: {
matched: new_matched,
- remained: m.remained.slice(1)
+ remained: m.remained.slice(1),
+ ast: ([ttbm]),
}
};
return result;
}
};
-let toSome = tk.toSome;
-let thenDo = tk.thenDo;
-let zeroOrOnceDo = tk.zeroOrOnceDo;
-let orDo = tk.orDo;
-let zeroOrMoreDo = tk.zeroOrMoreDo;
+/**
+ * type int
+ */
+let tInt = m1TType(tk.TokenType.INT);
+let tAdd = m1TType(tk.TokenType.I_ADD);
+let tMul = m1TType(tk.TokenType.I_MUL);
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 }));
/**
- * matchee pair of commandInputTokenized
+ * like `m ==> f` in ocaml
+ * @param m matchee wrapped
+ * @param f matching function
+ * @returns wrapped result
*/
-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));
+function thenDo(m : tk.Maybe<TokenMatcheePair>, f : Function){
+ if (m._tag == "None"){
+ return m;
}else{
- return {_tag : "None"};
+ var a : tk.Maybe<TokenMatcheePair> = f(m.value);
+ if (a._tag == "Some"){
+ a.value.ast = concat(m.value.ast, a.value.ast);
+ }
+
+ return a;
}
}
/**
- * 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.
+ * like `f1 | f2` in regex
+ * @param f1 the first tried function
+ * @param f2 the second tried function
+ * @returns wrapped result
*/
-function gramRHS (process: Function, arrange : number[]){
- return (m : TokenMatcheePair)=>{
+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;
+ }
+ }
+
+}
- let middle : tk.Maybe<TokenMatcheePair> = process(m);
+let midfix = (f : Function, signal? : string) => (x : TokenMatcheePair)=>{
+ var a = f(x);
+ if (a._tag == "Some"){
+ let ast_head : tkTree[] = slice(a.value.ast,0,a.value.ast.length-3);
+ 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("Middle"+util.inspect(middle, { showHidden: true, depth: null }));
+ console.log("+"+signal+"+"+repr(a));
- if (middle._tag == "None"){
- return middle;
- }
- else{
- 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;
- }
}
+ return a;
}
/**
- * typeABS ::= "'" ID
+ *
+ * fac1 = int MUL int
*/
-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;
+//let fac1 = midfix((x : TokenMatcheePair)=>
+// thenDo(thenDo(thenDo(tk.toSome(x), tInt), tMul), tInt));
+
+let fac1 = (x : TokenMatcheePair) => {
+ let a = midfix((x : TokenMatcheePair)=>
+ thenDo(thenDo(thenDo(tk.toSome(x), tInt), tMul), tInt), "fac1")(x);
+
+ return a;
}
+
/**
- * TypeId ::= typeABS | ID
+ *
+ * fac2 = int MUL int
*/
-var typeName = (x : TokenMatcheePair)=>
-{
- return thenDo(toSome(x), orDo(typeABS, tId));
-}
+let fac2 = tInt;
/**
- * CONST ::= INT | STR | FLO | BOOL
+ * fac = fac1 | fac2
*/
+let fac = orDo(fac1, fac2);
+
/**
- * TODO: 要用 debugger 檢查分析問題
+ *
+ * expr1 = fac ADD fac
*/
-var constParser = gramRHS((x : TokenMatcheePair)=>
- {return thenDo(toSome(x),orDo(orDo(orDo(tInt,tFlo),tStr),tBool))}, [0]);
-
+let expr1 = midfix((x : TokenMatcheePair)=>
+ thenDo(thenDo(thenDo(tk.toSome(x), fac), tAdd), fac), "expr1");
/**
- * storing the tree
+ * expr2 = fac
*/
-var astTree : tkTree = [];
+let expr2 = fac;
/**
- * TYPE_PAIR ::= TYP_ID ID
+ * expr = expr1 | expr2
*/
-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 expr = orDo(expr1, expr2);
- 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 }));
+let tokens = tk.tokenize("2+3*4");//tk.tokenize(argv[2]);
+let tokensFiltered = tokens.filter(
+ (x)=>{return (x.type != tk.TokenType.NL
+ && x.type != tk.TokenType.SP)});
- return {maybeTokens : abanibi.maybeTokens, ast : [a.ast, abanibi.ast]};
-
- };
+let wrappedTokens : tk.Maybe<TokenMatcheePair> =
+ tk.toSome({
+ matched : [] ,
+ remained : tokensFiltered,
+ ast : []});
+
+let beta = expr({
+ matched : [] ,
+ remained : tokensFiltered,
+ ast : []});
+
+console.log(repr(wrappedTokens));
+
+console.log(repr(beta));
-let tree = fnArgs(commandTPair);
-console.log("CHRANN"+util.inspect(tree, { showHidden: true, depth: null }));
* SEMI_C// semi-colon
*/
export enum TokenType {
- NL, // newlinw
+ NL, // newline
SP, // half-width space and tab
ID, // identifier
STR, // string
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