text: #!/usr/bin/env node
  
  var request = require('request')
      , fs = require('fs')
  
      , uvheadloc = 'https://raw.github.com/joyent/libuv/master/include/uv.h'
      , defreg = /^\s*XX\(\s*([\-\d]+),\s*([A-Z]+),\s*"([^"]*)"\s*\)\s*\\?$/
  
  
  request(uvheadloc, function (err, response) {
      if (err)
          throw err
  
      var data, out
  
      data = response.body
          .split('\n')
          .map(function (line) {
              return line.match(defreg)
          })
          .filter(function (match) {
              return match
          })
          .map(function (match) {
              return {
                  errno: parseInt(match[1], 10)
                  , code: match[2]
                  , description: match[3]
              }
          })
  
      out = 'var all = module.exports.all = ' + JSON.stringify(data, 0, 1) + '\n\n'
  
      out += '\nmodule.exports.errno = {\n    '
          + data.map(function (e, i) {
              return '\'' + e.errno + '\': all[' + i + ']'
          }).join('\n  , ')
          + '\n}\n\n'
  
      out += '\nmodule.exports.code = {\n    '
          + data.map(function (e, i) {
              return '\'' + e.code + '\': all[' + i + ']'
          }).join('\n  , ')
          + '\n}\n\n'
  
      out += '\nmodule.exports.custom = require("./custom")(module.exports)\n'
  
      fs.writeFile('errno.js', out)
  })