/node-cobol

:tv: COBOL bridge for NodeJS which allows you to run COBOL code from NodeJS.

Primary LanguageCOBOLMIT LicenseMIT

cobol

cobol

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COBOL bridge for NodeJS which allows you to run COBOL code from NodeJS.

Can I use this on production?

Of course, you can! It's production ready! If you ever did such a thing, ping me (@IonicaBizau). ๐Ÿ’ฅ ๐Ÿ’ซ

Installation

Currently GnuCOBOL is required. If you are using a debian-based distribution you can install it using:

$ sudo apt-get install gnucobol
# outdated systems: sudo apt-get install open-cobol

๐Ÿ’ก It would be interesting to fallback into a COBOL compiler written in NodeJS. Contributions are welcome! ๐Ÿ˜„

Then, install the cobol package.

$ npm i cobol

๐Ÿ“‹ Example

// Dependencies
var Cobol = require("cobol");

// Execute some COBOL snippets
Cobol(function () {/*
                   IDENTIFICATION DIVISION.
                   PROGRAM-ID. HELLO.
                   ENVIRONMENT DIVISION.
                   DATA DIVISION.
                   PROCEDURE DIVISION.
                   PROGRAM-BEGIN.
                   DISPLAY "Hello world".
                   PROGRAM-DONE.
                   STOP RUN.
                   */}, {
                       compileargs:{
                           free: true
                       }
                   }, function (err, data) {
    console.log(err || data);
});
// => "Hello World"

Cobol(__dirname + "/args.cbl", {
    args: ["Alice"]
}, function (err, data) {
    console.log(err || data);
});
// => "Your name is: Alice"

// This will read data from stdin
Cobol(function () {/*
                   IDENTIFICATION DIVISION.
                   PROGRAM-ID. APP.
                   *> http://stackoverflow.com/q/938760/1420197
                   ENVIRONMENT DIVISION.
                   INPUT-OUTPUT SECTION.
                   FILE-CONTROL.
                   SELECT SYSIN ASSIGN TO KEYBOARD ORGANIZATION LINE SEQUENTIAL.
                   DATA DIVISION.
                   FILE SECTION.
                   FD SYSIN.
                   01 ln PIC X(64).
                   88 EOF VALUE HIGH-VALUES.
                   WORKING-STORAGE SECTION.
                   PROCEDURE DIVISION.
                   DISPLAY "Write something and then press the <Enter> key"
                   OPEN INPUT SYSIN
                   READ SYSIN
                   AT END SET EOF TO TRUE
                   END-READ
                   PERFORM UNTIL EOF
                   DISPLAY "You wrote: ", ln
                   DISPLAY "------------"
                   READ SYSIN
                   AT END SET EOF TO TRUE
                   END-READ
                   END-PERFORM
                   CLOSE SYSIN
                   STOP RUN.
                   */}, {
    stdin: process.stdin,
    stdout: process.stdout
}, function (err) {
    if (err) {
        console.log(err);
    }
});
// => Write something and then press the <Enter> key
// <= Hi there!
// => You wrote: Hi there!
// => ------------

โ“ Get Help

There are few ways to get help:

  1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
  2. For bug reports and feature requests, open issues. ๐Ÿ›
  3. For direct and quick help, you can use Codementor. ๐Ÿš€

๐Ÿ“ Documentation

Cobol(input, options, callback)

Runs COBOL code from Node.JS side.

Params

  • Function|String|Path input: A function containing a comment with inline COBOL code, the cobol code itself or a path to a COBOL file.
  • Object options: An object containing the following fields:
  • cwd (String): Where the COBOL code will run (by default in the current working directory)
  • args (Array): An array of strings to pass to the COBOL process.
  • compileargs (Object): Use to specificy cobc compiler options
  • stdin (Stream): An optional stdin stream used to pipe data to the stdin stream of the COBOL process.
  • stderr (Stream): An optional stderr stream used to pipe data to the stdin stream of the COBOL process.
  • stdeout (Stream): An optional stdout stream used to pipe data to the stdin stream of the COBOL process.
  • remove (Boolean): Should the compiled executable be removed after running, default is true.
  • precompiled (Boolean): Run the precompiled executable instead of re-compiling, default is false.
  • Function callback: The callback function called with err, stdout and stderr.

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๐Ÿ˜‹ How to contribute

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๐Ÿ’ซ Where is this library used?

If you are using this library in one of your projects, add it in this list. โœจ

  • cobol-promises

๐Ÿ“œ License

MIT ยฉ Ionicฤƒ Bizฤƒu