Not-Invented-Here Options Parser

the options parser Dominic Tarr wrote

finally, an options parser you can trust!

• make your options parse
• usuage generation
• error messages if syntax wrong
• good test coverage

quick example:

var Nihop = require('nih-op')
, parser = 
new Nihop ("node example [options]
", "a banner that goes above the command
")
  .option ("boolean","b",0)
    .do(function)//called after this option is parsed
    .describe("an example boolean option")//describe this option for usuage
  .arg(function)//called after a free argument is parsed

see nih-op/example.js for more depth.