var fs = require('fs');
-import jsTokens from "js-tokens";
-import * as util from 'util';
+var argv : any = require('minimist')(process.argv.slice(2));
+
+import * as parser from "./parser.js";
/**
- *
- * # REPRESENTATION
- */
-/**
- * convert a `tkTree` AST to S-expr string
- * @param t the `tkTree`
- * @returns S-expr String
+ * help for inputing `--help` parameter.
*/
-export function tkTreeToSExp(t: tkTree): string{
- var str = "";
+export let helpDesc =
+`
+clo: clo INPUT_FILE --output-js OUTPUT_JS_FILE
- if (Array.isArray(t)){
- let strArray = t.map((x)=>tkTreeToSExp(x));
- str = "(" + strArray.join(" ") + ")";
- }else{
- if (t=== undefined){
- str = "%undefined"
- }else{
- str = t.value;
- }
- }
+\ta little typesetter powered by TypeScript/Javascript.
- return str;
-}
+## Arguments
+INPUT_FILE\tan input .clo file
-/**inspect the inner of the representation. */
-let repr = (x : any)=>{return util.inspect(x, {depth: null})};
-/**
- *
- * # TYPES
- */
+## Parameters
+---
+--output-js\tgenerated the output middle JS file
-/**
- * TokenPair for tokens' parser combinator
- *
- * matched: the matched (now and before) tokens
- *
- * remained: tokens to be matched
- *
- * ast: abstract syntax tree
- */
-export interface TokenPair {
- matched: jsTokens.Token[]
- remained: jsTokens.Token[]
- ast : tkTree[]
-}
-export type Some<T> = { _tag: "Some"; value: T };
-export type None = { _tag: "None" };
-export type Maybe<T> = Some<T> | None;
-type Token = jsTokens.Token;
-type tkTree = Token | tkTree[];
+Report bugs to: clo@kianting.info
+clo home page: <https://kianting.info/wiki/w/Project:Clo>
+`
-/**
- *
- * # PARSER UNITS
- */
-function toSome<T>(x:T): Maybe<T>{
- return {_tag: "Some", value: x};
-}
+processArgv(argv, helpDesc);
/**
- * like `m ==> f` in ocaml
- * @param m matchee wrapped
- * @param f matching function
- * @returns wrapped result
+ * processing the passed `argv` (arguments)
*/
-function thenDo(m : Maybe<TokenPair>, f : Function){
- if (m._tag == "None"){
- return m;
- }else{
- var a : Maybe<TokenPair> = f(m.value);
- if (a._tag == "Some"){
- a.value.ast = m.value.ast.concat(a.value.ast);
- }
- return a;
- }
-}
-/**
- *
- * @param m : the `TokenPair` 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: TokenPair): Maybe<TokenPair> {
- 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" };
- }
-}
+export function processArgv(argv : any, helpDesc : string){
+ let inputFile : string[] = argv['_'];
+ let outputJSFile : string | true = argv['output-js'];
-/**
- * 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 : TokenPair) =>{
- let res1 : Maybe<TokenPair> = f1(x);
- if (res1._tag == "Some"){
- return res1;
- }else{
- let res2 : Maybe<TokenPair> = f2(x);
- return res2;
- }
- }
-}
+ let NoInputFile : boolean = (inputFile.length == 0);
+ let NoOutputJSFile : boolean = (outputJSFile === undefined || outputJSFile == true);
+ let helpTriggered : boolean = argv['help'];
-/**
- * like regex [^c]
- * @param f input token function. one token only.
- * @returns combined finction
- */
-function notDo(f : Function){
- return (x : TokenPair) =>{
- let res1 : Maybe<TokenPair> = f(x);
- if (res1._tag == "Some"){
- return {_tag:"None"};
- }else{
- let res2 = matchAny(x);
- return res2;
- }
- }
-}
-
-function matchToken(typeName : string, value? : string):
- (t : TokenPair) => Maybe<TokenPair>{
- return (t)=>{
- let headToken = t.remained[0];
- if (headToken.type != typeName){
- return {_tag:"None"};
- }else{
- if (value === undefined || value == headToken.value){
- let newTokenPair = {
- matched: t.matched.concat(headToken),
- remained: t.remained.slice(1),
- ast : [headToken]
- };
- return {_tag : "Some", value : newTokenPair};
- }else{
- return {_tag:"None"};
- }
- };
+ if (inputFile.length > 1){
+ console.log("Sorry, the input file should be only one.");
}
-};
+ /** output --help */
+ if (helpTriggered || NoInputFile || NoOutputJSFile){
+ console.log(helpDesc);
+ }else{
+ fs.readFile(inputFile[0], 'utf8', (err : Error, inputText : string) => {
+ if (err) throw err;
-/**
- *
- * # TEST
- */
-const tokens = Array.from(jsTokens(
-`import foo from\t 'bar';
-import * as util from 'util';
+ let tree = parser.inputTextToTree(inputText);
+ let output = parser.treeToJS(tree);
-花非花，霧\\{非霧 。{{foo();}}下
-一句`));
+ fs.writeFile(outputJSFile, output , (err : Error) => {
+ if (err) throw err;
+ });
-console.log("RESULT="+repr(tokens));
+ });
+ }
+
+}
-var mainTokenPair : TokenPair = {
- matched : [] ,
- remained : tokens,
- ast : []};
-let a = thenDo(thenDo(toSome(mainTokenPair), matchToken('IdentifierName')),
- notDo(matchToken('Punctuator', ';')));
-console.log("RESULT="+repr(a));
-if (a._tag == "Some"){
- console.log("SEXP="+tkTreeToSExp(a.value.ast));
-}
projects / clo / blobdiff