parse argument options
This module is the guts of optimist's argument parser without all the
fanciful decoration.
var argv = require('minimist')(process.argv.slice(2));
console.log(argv);
$ node example/parse.js -a beep -b boop
{ _: [], a: 'beep', b: 'boop' }
$ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz
{ _: [ 'foo', 'bar', 'baz' ],
x: 3,
y: 4,
n: 5,
a: true,
b: true,
c: true,
beep: 'boop' }
Previous versions had a prototype pollution bug that could cause privilege
escalation in some circumstances when handling untrusted user input.
Please use version 1.2.6 or later:
var parseArgs = require('minimist')
Return an argument object argv
populated with the array arguments from args
.
argv._
contains all the arguments that didn't have an option associated with
them.
Numeric-looking arguments will be returned as numbers unless opts.string
oropts.boolean
is set for that argument name.
Any arguments after '--'
will not be parsed and will end up in argv._
.
options can be:
opts.string
- a string or array of strings argument names to always treat asopts.boolean
- a boolean, string or array of strings to always treat astrue
will treat all double hyphenated arguments without equal signs--foo
, not -f
or --foo=bar
)opts.alias
- an object mapping string names to strings or arrays of stringopts.default
- an object mapping string argument names to default valuesopts.stopEarly
- when true, populate argv._
with everything after theopts['--']
- when true, populate argv._
with everything before the --
argv['--']
with everything after the --
. Here's an example: > require('./')('one two three -- four five --six'.split(' '), { '--': true }) { _: [ 'one', 'two', 'three' ], '--': [ 'four', 'five', '--six' ] }
Note that with opts['--']
set, parsing for arguments still stops after the
--
.
opts.unknown
- a function which is invoked with a command line parameter notopts
configuration object. If the function returns false
, theargv
.With npm do:
npm install minimist
MIT