git.kianting.info Git - clo/blob - src/index.ts

   1 var fs = require('fs');
   2 var argv : any = require('minimist')(process.argv.slice(2));
   3
   4 import * as parser from "./parser.js";
   5
   6
   7 let helpDesc =
   8 `
   9 clo: clo INPUT_FILE --output-js OUTPUT_JS_FILE
  10
  11 \ta little typesetter powered by TypeScript/Javascript.
  12
  13 ## Arguments
  14 INPUT_FILE\tan input .clo file
  15
  16 ## Parameters
  17 ---
  18 --output-js\tgenerated the output middle JS file
  19 `
  20
  21 processArgv(argv, helpDesc);
  22
  23 /**
  24  * processing the passed `argv` (arguments)
  25  */
  26
  27 function processArgv(argv : any, helpDesc : string){
  28     let inputFile : string[] = argv['_'];
  29     let outputJSFile : string | true = argv['output-js'];
  30
  31     let NoInputFile : boolean = (inputFile.length == 0);
  32     let NoOutputJSFile : boolean = (outputJSFile === undefined || outputJSFile == true);
  33     let helpTriggered : boolean = argv['help'];
  34
  35     if (inputFile.length > 1){
  36         console.log("Sorry, the input file should be only one.");
  37     }
  38
  39     /** output --help */
  40     if (helpTriggered || NoInputFile || NoOutputJSFile){
  41         console.log(helpDesc);
  42     }else{
  43         fs.readFile(inputFile[0], 'utf8', (err : Error, inputText : string) => {
  44             if (err) throw err;
  45
  46             let tree = parser.inputTextToTree(inputText);
  47
  48             let output = parser.treeToJS(tree);
  49
  50             fs.writeFile(outputJSFile, output , (err : Error) => {
  51                 if (err) throw err;
  52               });
  53
  54           });
  55     }
  56
  57 }
  58
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