CouchDB map function used to count #code2012 entires.

gistfile1.js

{ 
  map: function (doc) 
  {
    if(doc.text.indexOf("RT ") != -1 || doc.text.indexOf("RT:") != -1 ||
       doc.text.indexOf("rt ") != -1 || doc.text.indexOf("rt:") != -1)
    {
      return;
    }

    function pre_replacements(obj) 
    {
      return obj.toLowerCase()
        .replace('objective c','objective-c').replace('objc','objective-c')
        .replace('obj-c','objective-c').replace('objectivec','objective-c')
        .replace(' js','javascript').replace('asm','assembler')
        .replace('assembly','assembler').replace('common lisp','lisp')
        .replace('x86 assembly','assembler').replace('x86asm','assembler')
        .replace(' script','sh').replace('nodejs', 'node.js')
        .replace('csharp','c#').replace('mysql','sql')
        .replace('visual basic','vb').replace('x86 assembler','assembler')
        .replace('arm asm','assembler').replace('arm assembly','assembler')
        .replace('x86 asm','assembler').replace('as3','actionscript')
        .replace('css3','css').replace('html5','html')
        .replace('emacs','elisp').replace('turbo pascal', 'pascal')
        .replace('small talk','smalltalk').replace('javascripton','javascript')
        .replace('c++11','c++');
    }

    function post_replacements(obj) 
    {
      return obj.toLowerCase()
        .replace('"' , '').replace('&' , '').replace('<' , '')
        .replace('>' , '').replace('(' , '').replace(')' , '') 
        .replace(/^-$/ , '').replace('..' , '').replace(':' , '')
        .replace(/^--$/, '').replace(/\.$/, '').replace(/^#/, '')
        .replace(/^js$/, 'javascript').replace('perlease','perl')
        .replace(/^go$/, 'golang').replace(/^node$/, 'node.js')
        .replace(/^bat$/, 'batch').replace(/^x86$/, 'assembler')
        .replace(/^arm$/, 'assembler').replace(/^pl$/,'perl')
        .replace(/^sh$/, 'shell').replace(/^coffescript$/, 'coffeescript');
    }

    function contains(a, obj) 
    {
      var i = a.length;
      while (i--) 
      {
        if (a[i] === obj.toLowerCase())
        {
          return true;
        }
      }
      return false;
    }

    skip_terms = [
      '#code2012', 'code2012', 'data', 'pure', 'and', 'the', 'year', 'you', 'program', 'programming',
      'it', '2012', '2013', '#code2013', 'code2013', 'this', 'that', "that's", 'tools', "i'm", "it's",
      'i', 'of', 'older', 'twitter.com', 'treat', 'toyed', 'top', 'old', 'not', "i've", 'languages', 
      'language', 'need', 'have', 'hope', 'hey', 'my', 'in', 'for', 'src', 'must', 'a', 'an',
      'around', 'as', 'at', 'be', 'been', 'bit', 'bit.ly', 'but', 'can', 'coding', 'developers', 'did',
      'doubts', 'focused', 'gist.git', 'http', 'just', 'know', 'last', 'learning', 'look', 'lot', 'lots',
      'mention', 'mentioned', 'mostly', 'nothing', 'order', 'really', 'rt', 'sometimes', 'statuses',
      'terribly', 'used', 'weird', 'what', 'whoever', 'with', 'wow', 'wrong', 'to', 'code', 'more', 
      'www.ioncannon.net', 'little', 'is', '&', 'was', 'processing', 'projects', 'project', 'wrote', 
      'forgot', 'count', 'on', 'oh', 'time', 'some', 'me', 'too', 'all', 'also', 'think', 'past', '',
      'my', 'satisfy', 'mining', 'gods:', 'the', '@deadprogram', 'using', 't.co', 'about', 'next', 'so',
      'or', 'list', 'much', 'year?', 'tweet', 'do', 'no', 'by', 'work', 'tiny', 'course', 'very', 'from',
      'his', 'then', 'mainly', 'now', 'will', 'others', 'here', '2', '3', 'various', 'amount', 'one',
      'should', 'write', '+', 'few', 'stats', 'y', 'de', 'good', 'yes', 'are', 'how', 'fun', 'than', 
      'other', 'cc', 'add', 'should', 'only', 'use', 'first', 'new', 'touch', 'if', 'any', 'like', "you've",
      'most', 'maybe', 'production', 'maybe', 'learned', '6502', 'out', 'even', 'trying', 'into', 'does',
      'stuff', 'same', 'started', 'que', 'el', 'probably', 'played', 'play', 'please', 'coded', 'remember',
      'would', 'still', "don't", 'feel', 'had', 'many', 'has', 'hoping', 'something', 'up', 'ok', ';',
      '“@deadprogram', 'enough', 'read', 'hopefully', 'home', 'quite', 'en', 'there', 'people', 'lines',
      'written', 'count?', 'bits', '=', '?', "didn't", 'over', 'thanks', 'want', 'plus', 'pretty', '-', 
      'well', 'et', 'langs', 'were', '@humancoders', 'through', 'tweets', 'end', 'learn', 'common', 
      'guess', '5', 'real', 'see', 'writing', 'descending', 'looking', 'standard', '@marcocantu', 
      'interesting', 'friends', 'encouraging', 'things', 'programmed', 'code2012"', 'ones', 'those',
      'results', 'least'
    ];

    var langs = [];
    var st = pre_replacements(doc.text).split(/,|\s|\//g);
    for(var i=0; i<st.length; i++)
    {
      var cs = post_replacements(st[i]);
      if(!contains(skip_terms, cs) && !contains(langs, cs))
      {
        langs.push(cs);
      }
    }

    emit(doc._id, { created: doc.created_at, text: doc.text, languages: langs });
  }
},

function (err, res) 
{
  if (err) console.log(err);

  var langs = {};
  res.forEach(function(val, index, arr)
  {
    index.languages.forEach(function(valb, indexb, arrb)
    {
      if(!langs[valb])
      {
        langs[valb] = 0;
      }
      langs[valb]++;
    });
  });

  var out = [];
  for(var lang in langs)
  {
    if(langs[lang] > 8)
      out.push({language: lang, value: langs[lang]});
  }

  console.log(JSON.stringify(out));
});