X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Findex.ts;h=44aa79282788f7f8fd28679017ceb114c49c3149;hb=c3dc58d74afa6b298d84bad90d63c027a32a954a;hp=a8d103b5d550e29e63fe0e707a9b36b3b10bd090;hpb=6f2e788329da7702ea96dc28ae04499917ec8152;p=clo

diff --git a/src/index.ts b/src/index.ts
index a8d103b..44aa792 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,120 +1,68 @@
 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 })); 
+
+
+