mokey tiger haiku

gistfile1.js

var split = require('split');
var http  = require('http');

function pullHaikuFromLine(line, offset) {
  return line.replace(/\s{2,}/g, ' ')
             .replace(/<div class="line">/g, "\n")
             .replace(/<(?:.|\n)*?>/gm, ' ')
             .substring(3);
}

function handleGetHaiku(cb) {
  http.get('http://www.randomhaiku.com/', function(res) {

    res.pipe(split()).on('data', function (line) {
      if (line.indexOf('div class="poem"') >= 0)
        cb(pullHaikuFromLine(line, 0));
    });

  }).on('error', function(e) {
    process.stderr.write('error in stream D: ' + e.message);
  });
}

function hasTiger(haiku) {
  var lHaiku = haiku.toLowerCase();

  return lHaiku.indexOf('t') >= 0 &&
         lHaiku.indexOf('i') >= 0 &&
         lHaiku.indexOf('g') >= 0 &&
         lHaiku.indexOf('e') >= 0 &&
         lHaiku.indexOf('r') >= 0;
}

function hasMonkey(haiku) {
  var lHaiku = haiku.toLowerCase();

  return lHaiku.indexOf('m') >= 0 &&
         lHaiku.indexOf('o') >= 0 &&
         lHaiku.indexOf('n') >= 0 &&
         lHaiku.indexOf('k') >= 0 &&
         lHaiku.indexOf('e') >= 0 &&
         lHaiku.indexOf('y') >= 0;
}

function handleSearchHaiku(haiku) {
  console.log(haiku);

  var tiger  = hasTiger(haiku);
  var monkey = hasMonkey(haiku);
  
  if (tiger && monkey)
    console.log('TIGER MOKEY!!! :D');
  else if (tiger)
    console.log('TIGER!');
  else if (monkey)
    console.log('MONEKY!');
  else
    console.log('NO TIGER, NO MONKEY :[');
}

handleGetHaiku(handleSearchHaiku);