parse argument options
解析参数选项
This module is the guts of optimist's argument parser without all the fanciful decoration.
example
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' }
methods
var parseArgs = require('minimist')
var argv = parseArgs(args, opts={})
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 strings -
opts.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 aliases -
opts.default
- an object mapping string argument names to default values -
opts.stopEarly
- when true, populateargv._
with everything after the first non-option -
opts['--']
- when true, populateargv._
with everything before the--
andargv['--']
with everything after the--
. Here's an example: -
opts.unknown
- a function which is invoked with a command line parameter not defined in theopts
configuration object. If the function returnsfalse
, the unknown option is not added toargv
.
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 --
.
install
With npm do:
npm install minimist --save-dev
license
MIT
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