creates a 200 char summary with html tags intact

gistfile1.txt

var createSummary = function(str){
   var str = str
       //tag replacement stuff
       , tagRegex = /<[^>]*>?/g
       , markerRegexGlobal = /~/g
       , markerRegex = /~/
       , marker = '~'
       //other vars that we will need
       , refString = str.replace(tagRegex, marker) //replace out tags
       , i = 0
       , max = 0
       , formattingArray = str.match(tagRegex)
       , tempString;
   
   if(refString.length <= (200 + formattingArray.length)){
      //short enough already... return that thing
      return str;
   }else{
      //this is a longer string... time for magic!
      //slice then check for tags and reslice as needed
      tempString = refString.slice(0,200 + refString.slice(0,200).match(markerRegexGlobal).length); 

      max = tempString.match(markerRegexGlobal).length;

      for(i=0; i < max; i++){
        tempString = tempString.replace(markerRegex, formattingArray[i]);
      }

      //add the elipses and return this thing
      return tempString + '&hellip;'; 
   }
}