JSPM – stdio@0.0.2

Package Exports

stdio

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (stdio) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Module for input/output management with nodejs.

Installation

To install the most recent release from npm, run:

npm install stdio

Usage

You can do many things with this module

Read standard input at once

var stdio = require('stdio');
stdio.read(function(data){
    console.log(data);
});

Parse Unix-like command line options

var stdio = require('stdio');
var ops = stdio.getopt({
    'check': {key: 'c', args: 2},
    'map': {key: 'm'},
    'kaka': {key: 'k', args: 2},
    'ooo': {key: 'o'}
});
console.log(ops);

If you run the previous example with the command

node pruebas.js -c 23 45 88 --map -k 23 44 cosa

Program output will be:

{ check: { args: [ '23', '45' ] },
  args: [ '88', 'cosa' ],
  map: true,
  kaka: { args: [ '23', '44' ] } }

So you can check options:

if(ops.map){
    // Your action
}
if(ops.kaka){
    // Your action, using ops.kaka[0] or ops.kaka[1] or...
}

Printf-like output

This simple line:

stdio.printf('example %d: %s is %j\n', 2, 'any', {a: 2, b: [0, 2, 8], c: 'str'});

will produce the following output:

example 2: any is {"a":2,"b":[0,2,8],"c":"str"}

You can use %s for strings, %d for numbers (integer or floating-point ones), and %j for JSON objects.