X-Git-Url: https://git.josue.xyz/?a=blobdiff_plain;f=node_modules%2Fnode-static%2Fnode_modules%2Foptimist%2Freadme.markdown;fp=node_modules%2Fnode-static%2Fnode_modules%2Foptimist%2Freadme.markdown;h=b74b43724e08f0e5d3e482e23ec93820ffbbb4b2;hb=0f4e331e6d75c244e978860b62a6e1aed8d446e0;hp=0000000000000000000000000000000000000000;hpb=0cb383f1c0646575a831f4f812cd85c9e24d9a18;p=VSoRC%2F.git diff --git a/node_modules/node-static/node_modules/optimist/readme.markdown b/node_modules/node-static/node_modules/optimist/readme.markdown new file mode 100644 index 0000000..b74b437 --- /dev/null +++ b/node_modules/node-static/node_modules/optimist/readme.markdown @@ -0,0 +1,513 @@ +# DEPRECATION NOTICE + +I don't want to maintain this module anymore since I just use +[minimist](https://npmjs.org/package/minimist), the argument parsing engine, +directly instead nowadays. + +See [yargs](https://github.com/chevex/yargs) for the modern, pirate-themed +successor to optimist. + +[![yarrrrrrrgs!](http://i.imgur.com/4WFGVJ9.png)](https://github.com/chevex/yargs) + +You should also consider [nomnom](https://github.com/harthur/nomnom). + +optimist +======== + +Optimist is a node.js library for option parsing for people who hate option +parsing. More specifically, this module is for people who like all the --bells +and -whistlz of program usage but think optstrings are a waste of time. + +With optimist, option parsing doesn't have to suck (as much). + +[![build status](https://secure.travis-ci.org/substack/node-optimist.png)](http://travis-ci.org/substack/node-optimist) + +examples +======== + +With Optimist, the options are just a hash! No optstrings attached. +------------------------------------------------------------------- + +xup.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist').argv; + +if (argv.rif - 5 * argv.xup > 7.138) { + console.log('Buy more riffiwobbles'); +} +else { + console.log('Sell the xupptumblers'); +} +```` + +*** + + $ ./xup.js --rif=55 --xup=9.52 + Buy more riffiwobbles + + $ ./xup.js --rif 12 --xup 8.1 + Sell the xupptumblers + +![This one's optimistic.](http://substack.net/images/optimistic.png) + +But wait! There's more! You can do short options: +------------------------------------------------- + +short.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist').argv; +console.log('(%d,%d)', argv.x, argv.y); +```` + +*** + + $ ./short.js -x 10 -y 21 + (10,21) + +And booleans, both long and short (and grouped): +---------------------------------- + +bool.js: + +````javascript +#!/usr/bin/env node +var util = require('util'); +var argv = require('optimist').argv; + +if (argv.s) { + util.print(argv.fr ? 'Le chat dit: ' : 'The cat says: '); +} +console.log( + (argv.fr ? 'miaou' : 'meow') + (argv.p ? '.' : '') +); +```` + +*** + + $ ./bool.js -s + The cat says: meow + + $ ./bool.js -sp + The cat says: meow. + + $ ./bool.js -sp --fr + Le chat dit: miaou. + +And non-hypenated options too! Just use `argv._`! +------------------------------------------------- + +nonopt.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist').argv; +console.log('(%d,%d)', argv.x, argv.y); +console.log(argv._); +```` + +*** + + $ ./nonopt.js -x 6.82 -y 3.35 moo + (6.82,3.35) + [ 'moo' ] + + $ ./nonopt.js foo -x 0.54 bar -y 1.12 baz + (0.54,1.12) + [ 'foo', 'bar', 'baz' ] + +Plus, Optimist comes with .usage() and .demand()! +------------------------------------------------- + +divide.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .usage('Usage: $0 -x [num] -y [num]') + .demand(['x','y']) + .argv; + +console.log(argv.x / argv.y); +```` + +*** + + $ ./divide.js -x 55 -y 11 + 5 + + $ node ./divide.js -x 4.91 -z 2.51 + Usage: node ./divide.js -x [num] -y [num] + + Options: + -x [required] + -y [required] + + Missing required arguments: y + +EVEN MORE HOLY COW +------------------ + +default_singles.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .default('x', 10) + .default('y', 10) + .argv +; +console.log(argv.x + argv.y); +```` + +*** + + $ ./default_singles.js -x 5 + 15 + +default_hash.js: + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .default({ x : 10, y : 10 }) + .argv +; +console.log(argv.x + argv.y); +```` + +*** + + $ ./default_hash.js -y 7 + 17 + +And if you really want to get all descriptive about it... +--------------------------------------------------------- + +boolean_single.js + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .boolean('v') + .argv +; +console.dir(argv); +```` + +*** + + $ ./boolean_single.js -v foo bar baz + true + [ 'bar', 'baz', 'foo' ] + +boolean_double.js + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .boolean(['x','y','z']) + .argv +; +console.dir([ argv.x, argv.y, argv.z ]); +console.dir(argv._); +```` + +*** + + $ ./boolean_double.js -x -z one two three + [ true, false, true ] + [ 'one', 'two', 'three' ] + +Optimist is here to help... +--------------------------- + +You can describe parameters for help messages and set aliases. Optimist figures +out how to format a handy help string automatically. + +line_count.js + +````javascript +#!/usr/bin/env node +var argv = require('optimist') + .usage('Count the lines in a file.\nUsage: $0') + .demand('f') + .alias('f', 'file') + .describe('f', 'Load a file') + .argv +; + +var fs = require('fs'); +var s = fs.createReadStream(argv.file); + +var lines = 0; +s.on('data', function (buf) { + lines += buf.toString().match(/\n/g).length; +}); + +s.on('end', function () { + console.log(lines); +}); +```` + +*** + + $ node line_count.js + Count the lines in a file. + Usage: node ./line_count.js + + Options: + -f, --file Load a file [required] + + Missing required arguments: f + + $ node line_count.js --file line_count.js + 20 + + $ node line_count.js -f line_count.js + 20 + +methods +======= + +By itself, + +````javascript +require('optimist').argv +````` + +will use `process.argv` array to construct the `argv` object. + +You can pass in the `process.argv` yourself: + +````javascript +require('optimist')([ '-x', '1', '-y', '2' ]).argv +```` + +or use .parse() to do the same thing: + +````javascript +require('optimist').parse([ '-x', '1', '-y', '2' ]) +```` + +The rest of these methods below come in just before the terminating `.argv`. + +.alias(key, alias) +------------------ + +Set key names as equivalent such that updates to a key will propagate to aliases +and vice-versa. + +Optionally `.alias()` can take an object that maps keys to aliases. + +.default(key, value) +-------------------- + +Set `argv[key]` to `value` if no option was specified on `process.argv`. + +Optionally `.default()` can take an object that maps keys to default values. + +.demand(key) +------------ + +If `key` is a string, show the usage information and exit if `key` wasn't +specified in `process.argv`. + +If `key` is a number, demand at least as many non-option arguments, which show +up in `argv._`. + +If `key` is an Array, demand each element. + +.describe(key, desc) +-------------------- + +Describe a `key` for the generated usage information. + +Optionally `.describe()` can take an object that maps keys to descriptions. + +.options(key, opt) +------------------ + +Instead of chaining together `.alias().demand().default()`, you can specify +keys in `opt` for each of the chainable methods. + +For example: + +````javascript +var argv = require('optimist') + .options('f', { + alias : 'file', + default : '/etc/passwd', + }) + .argv +; +```` + +is the same as + +````javascript +var argv = require('optimist') + .alias('f', 'file') + .default('f', '/etc/passwd') + .argv +; +```` + +Optionally `.options()` can take an object that maps keys to `opt` parameters. + +.usage(message) +--------------- + +Set a usage message to show which commands to use. Inside `message`, the string +`$0` will get interpolated to the current script name or node command for the +present script similar to how `$0` works in bash or perl. + +.check(fn) +---------- + +Check that certain conditions are met in the provided arguments. + +If `fn` throws or returns `false`, show the thrown error, usage information, and +exit. + +.boolean(key) +------------- + +Interpret `key` as a boolean. If a non-flag option follows `key` in +`process.argv`, that string won't get set as the value of `key`. + +If `key` never shows up as a flag in `process.arguments`, `argv[key]` will be +`false`. + +If `key` is an Array, interpret all the elements as booleans. + +.string(key) +------------ + +Tell the parser logic not to interpret `key` as a number or boolean. +This can be useful if you need to preserve leading zeros in an input. + +If `key` is an Array, interpret all the elements as strings. + +.wrap(columns) +-------------- + +Format usage output to wrap at `columns` many columns. + +.help() +------- + +Return the generated usage string. + +.showHelp(fn=console.error) +--------------------------- + +Print the usage data using `fn` for printing. + +.parse(args) +------------ + +Parse `args` instead of `process.argv`. Returns the `argv` object. + +.argv +----- + +Get the arguments as a plain old object. + +Arguments without a corresponding flag show up in the `argv._` array. + +The script name or node command is available at `argv.$0` similarly to how `$0` +works in bash or perl. + +parsing tricks +============== + +stop parsing +------------ + +Use `--` to stop parsing flags and stuff the remainder into `argv._`. + + $ node examples/reflect.js -a 1 -b 2 -- -c 3 -d 4 + { _: [ '-c', '3', '-d', '4' ], + '$0': 'node ./examples/reflect.js', + a: 1, + b: 2 } + +negate fields +------------- + +If you want to explicity set a field to false instead of just leaving it +undefined or to override a default you can do `--no-key`. + + $ node examples/reflect.js -a --no-b + { _: [], + '$0': 'node ./examples/reflect.js', + a: true, + b: false } + +numbers +------- + +Every argument that looks like a number (`!isNaN(Number(arg))`) is converted to +one. This way you can just `net.createConnection(argv.port)` and you can add +numbers out of `argv` with `+` without having that mean concatenation, +which is super frustrating. + +duplicates +---------- + +If you specify a flag multiple times it will get turned into an array containing +all the values in order. + + $ node examples/reflect.js -x 5 -x 8 -x 0 + { _: [], + '$0': 'node ./examples/reflect.js', + x: [ 5, 8, 0 ] } + +dot notation +------------ + +When you use dots (`.`s) in argument names, an implicit object path is assumed. +This lets you organize arguments into nested objects. + + $ node examples/reflect.js --foo.bar.baz=33 --foo.quux=5 + { _: [], + '$0': 'node ./examples/reflect.js', + foo: { bar: { baz: 33 }, quux: 5 } } + +short numbers +------------- + +Short numeric `head -n5` style argument work too: + + $ node reflect.js -n123 -m456 + { '3': true, + '6': true, + _: [], + '$0': 'node ./reflect.js', + n: 123, + m: 456 } + +installation +============ + +With [npm](http://github.com/isaacs/npm), just do: + npm install optimist + +or clone this project on github: + + git clone http://github.com/substack/node-optimist.git + +To run the tests with [expresso](http://github.com/visionmedia/expresso), +just do: + + expresso + +inspired By +=========== + +This module is loosely inspired by Perl's +[Getopt::Casual](http://search.cpan.org/~photo/Getopt-Casual-0.13.1/Casual.pm).