var fs = require('fs');
-import { argv } from 'node:process';
-import * as tk from './tokenize.js';
-import * as util from 'util';
+var argv : any = require('minimist')(process.argv.slice(2));
+
+import * as parser from "./parser.js";
/**
- * token tree type.
+ * help for inputing `--help` parameter.
*/
-type tkTree = tk.Token[] | tk.Token
+export let helpDesc =
+`
+clo: clo INPUT_FILE --output-js OUTPUT_JS_FILE
-export interface TokenMatcheePair {
- matched: tkTree[]
- remained: tk.Token[]
-}
+\ta little typesetter powered by TypeScript/Javascript.
-/**
- * @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) {
- m.matched.push(ttbm);
- return {
- _tag: "Some", value: {
- matched: m.matched,
- remained: m.remained.slice(1)
- }
- };
- }
- else {
- return { _tag: "None" };
- }
- }
-};
+## Arguments
+INPUT_FILE\tan input .clo file
-let toSome = tk.toSome;
-let thenDo = tk.thenDo;
-let orDo = tk.orDo;
+## Parameters
+---
+--output-js\tgenerated the output middle JS file
-argv.forEach((val, index) => {
- console.log(`${index}=${val}`);
-});
+Report bugs to: clo@kianting.info
+clo home page: <https://kianting.info/wiki/w/Project:Clo>
+`
-let commandInput = argv[2];
-let commandInputTokenized = tk.tokenize(commandInput);
-console.log(commandInputTokenized);
+processArgv(argv, helpDesc);
/**
- * matchee pair of commandInputTokenized
+ * processing the passed `argv` (arguments)
*/
-let commandTPair : TokenMatcheePair = {matched:[],
- remained: commandInputTokenized};
+export function processArgv(argv : any, helpDesc : string){
+ let inputFile : string[] = argv['_'];
+ let outputJSFile : string | true = argv['output-js'];
-let tInt = m1TType(tk.TokenType.INT);
-let tFlo = m1TType(tk.TokenType.FLO);
-let tStr = m1TType(tk.TokenType.STR);
-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 {_tag : "None"};
+ let NoInputFile : boolean = (inputFile.length == 0);
+ let NoOutputJSFile : boolean = (outputJSFile === undefined || outputJSFile == true);
+ let helpTriggered : boolean = argv['help'];
+
+ if (inputFile.length > 1){
+ console.log("Sorry, the input file should be only one.");
}
-}
-/**
- * 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.
- */
-function gramRHS (process: Function, arrange : number[]){
- return (m : TokenMatcheePair)=>{
+ /** output --help */
+ if (helpTriggered || NoInputFile || NoOutputJSFile){
+ console.log(helpDesc);
+ }else{
+ fs.readFile(inputFile[0], 'utf8', (err : Error, inputText : string) => {
+ if (err) throw err;
- let result : tk.Maybe<TokenMatcheePair> = process(m);
- console.log(`result ${result}`)
- if (result._tag == "None"){
- return result;
- }
- else{
- let matched = result.value.matched;
- let return_array : tkTree[] = Array(arrange.length);
+ let tree = parser.inputTextToTree(inputText);
- arrange.forEach((val, index) => {
- return_array[arrange[index]] = matched[index];
- });
+ let output = parser.treeToJS(tree);
- return return_array;
- }
+ fs.writeFile(outputJSFile, output , (err : Error) => {
+ if (err) throw err;
+ });
+
+ });
}
+
}
-/**
- * CONST ::= INT | STR | FLO | BOOL
- */
-var constParser = gramRHS((x : TokenMatcheePair)=>
- {return thenDo(toSome(x),orDo(orDo(orDo(tInt,tFlo),tStr),tBool))}, [0]);
-let tree = constParser(commandTPair);
-console.log(util.inspect(tree, { showHidden: true, depth: null }));
+
+
+