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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.dir(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' }
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
or
opts.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 as
stringsopts.boolean
- a boolean, string or array of strings to always treat as
booleans. if true
will treat all double hyphenated arguments without equal signs
as boolean (e.g. affects --foo
, not -f
or --foo=bar
)opts.alias
- an object mapping string names to strings or arrays of string
argument names to use as aliasesopts.default
- an object mapping string argument names to default valuesopts.stopEarly
- when true, populate argv._
with everything after the
first non-optionopts['--']
- when true, populate argv._
with everything before the --
and argv['--']
with everything after the --
. Here’s an example:opts.unknown
- a function which is invoked with a command line parameter not
defined in the opts
configuration object. If the function returns false
, the
unknown option is not added to argv
.> 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
--
.
With npm do:
npm install minimist
MIT