Replacing Existing Words with Lorem Impsum placeholder text.

We were able to correct the first code. It was simply some missing array indices in three places. The code now runs really well in the latest InDesign CC.

loremIpsumize(app.selection[0]);

function loremIpsumize(myText){ // myText could be a TextFrame, Story, InsertionPoint, Word, Text etc...
    var loremIpsumDictionary = [[""], // this is the dictionary of words sorted by number of letters. The words are taken from InDesigns "fill with placeholder text"-feature
                      ["a","e","y"],
                      ["el","si","em","se","an","er","do","re","te","at","os","od","to","et","eu","ud","na","ex","ed","ut","ad","il","in","la","it","is","ip","am","ea"],
                      ["ing","lam","vel","lan","lis","lor","ute","ver","con","lum","lut","ibh","del","unt","min","mod","feu","nim","nis","nit","non","nos","bla","eum","eui","num","aut","dio","odo","wis","tis","tio","pis","pit","qui","ate","tin","tie","ese","tet","tem","dip","rat","ero","ril","rit","ros","dit"],
                      ["duis","alit","dunt","ecte","sisi","elis","elit","enim","enis","enit","sent","wisl","erat","amet","tate","alis","erci","erit","wisi","eros","esed","esse","essi","dion","atem","atet","acil","esto","atio","quis","atue","etue","quip","ting","etum","atum","quat","quam","diat","euip","prat"],
                      ["lorem","ispum","magna","ulput","lutem","minci","minis","lummy","commy","adiat","minit","conse","lorer","lorem","ullum","adiam","lobor","modip","modit","lenit","lenim","laore","cipit","molor","utpat","velis","iusto","iusci","iurem","molum","velit","ullan","ullam","nisci"],
                      ["mconse","magnit","mincip","magnis","magnim","minisi","minisl","lutpat","wissis","wissim","acidui","modiat","commod","luptat","wiscip","wiscin","lumsan","wiscil","molent","cinibh","lortio","vulput","molore","lortin","lortie","vullut","vullan","vullam","ncidui","volute","lorper"],
                      ["feuisci","sustrud","ationse","feuisis","feuisit","feuguer","feuismo","feugiat","feummod","feugiam","hendiam","feugait","dolorem","andreet","suscipi","hendrem","hendrer","facipit","heniamc","amconul","atuerat","facipis","dolorer","facinim","tetummy","facinim","delesto"],
                      ["dolortis","vendreet","vullutat","consequi","niatuero","eugiamet","nismodit","adignibh","eugiatet","zzriusto","doluptat","veliquat","nonsecte","veliquam","velestis","dolortio","nonsenim","velessim","dolortin","dolortie","velenibh","nonsequi","veleniat","conullam","eraessit"],
                      ["iriliquis","blandipis","quismolor","irillamet","consequis","iriuscing","blaorerit","iriustrud","etuerosto","nissectet","vendiamet","volestisl","dionsenim","digniamet","eniatisit","quamcommy","iurerosto","ionsequat","ptatueros","consequat","duiscipit","scillummy","veliquisl"],
                      ["loremipsum","exeriurero","nummodolor","ullamcommy","veriliquat","conulputat","uismodolor","exeraessit","exerostrud","nullaortis","tisiscipis","nullaoreet","nullandrem","odigniamet","nullandiat","verciduisi","erciduisit","faciduisim","lummolessi","facincipit","voloreetum"],
                      ["dolortionum","veliquiscil","euguerostie","veliquamcon","aciliquisim","eummolestin","adionsequat","adipsustrud","vercincinis","dolorpercin","exeraestrud","ullaorperit","wismolobore","amconsequis","essequating","facipsustio","doloreetuer","elesequisim","augiametuer"],
                      ["dolutatueros","adigniamcore","velesequipit","adigniscipis","eummolortion","dolorperiure","dolorpercing","ulputpatetue","uipsuscidunt","aliquipsusci","tumsandionse","tionsequisim","facilismolut","facillametum","atueraestrud","sustionsenim","iliquatiniat","dolenismodit"]];

    var myStory; // the parent Story of myText

    if (myText instanceof Story){ 
         myStory = myText;
    } else if (myText instanceof InsertionPoint){
         myText = myStory = myText.parentStory; 
    } else if (myText.hasOwnProperty("parentStory")){ // myText instanceof Word, TextFrame, Character, TextColumn or Paragraph
         myStory = myText.parentStory;
    } else { // myText is not text, but some other object
         return; 
    }


    if  (myText.hasOwnProperty("paragraphs") && !(myText instanceof Paragraph)){ // The script returns better looking results when one Paragraph is processed at a time
         var myParagraphs = myText.paragraphs.everyItem().getElements();
         for (var n=myParagraphs.length-1; n>=0 ; n--){
              loremIpsumize(myParagraphs[n]); // clever recurson
         }
    } else if (myText.contents!=""){
         app.findGrepPreferences = NothingEnum.nothing;
         app.changeGrepPreferences = NothingEnum.nothing;
         app.findGrepPreferences.findWhat = "[\\u\\l\u00E6\u00C6]{1,"+loremIpsumDictionary.length+"}"; // only looks for word-characters and leave punctuation, spaces as they are
              
         var storyLineNumber = myStory.lines.length; // remembers how many lines the story has, and tries to make the new text the same number of lines
         var myWordMatches = myText.findGrep(); // an array of Word references that fit the grep
         for (var i=myWordMatches.length-1; i>=0; i--){
              myWordMatches[i].contents = loremipsumWord(myWordMatches[i].contents); // changes the word into a random latin-sounding one
         }               
         fineTuneText(storyLineNumber); 
    }

    function fineTuneText(targetNumberOfLines){ // tries to make the text the correct number of lines by adding or subtracting one letter at a time
         var myNumberOfCharacters;
         var newWord;
         var myWord;
         while (targetNumberOfLines != myStory.lines.length) {
              myNumberOfCharacters = myText.characters.length;
              for (var changeWord = myWordMatches.length-1; changeWord>=0; changeWord--){          
                   myWord = myWordMatches[changeWord];
                   if (targetNumberOfLines>myStory.lines.length){
                        newWord = loremipsumWord(myWord.contents+"a"); // adds a letter 
                   }else if (targetNumberOfLines<myStory.lines.length){
                        newWord = myWord.contents.length>1? loremipsumWord(myWord.contents.slice(0,-1)): myWord.contents; // removes a letter                    
                   } else { 
                        return true; // targetNumberOfLines == myStory.lines.length
                   }
                   myWord.contents = newWord;
              }
              if (myNumberOfCharacters == myText.characters.length){
                   return false; // Every word in the text has been reduced to a single character, and the text is still too long.... Give up.
              } else {
                   myWordMatches = myText.findGrep(); // Need to do a new search, since the text has been changed
              }
         }
    }

    function loremipsumWord(myWord){ // takes a string and returns a random word with same number of letters, and the same capitalization
         var replacementWord = "";
         var correctCaseWord= "";
         var wordLength = myWord.length;
              if (wordLength >= loremIpsumDictionary.length){ // in case myWord is longer than the longest words in the dictionary 
                   replacementWord = loremipsumWord(myWord.substr(0,loremIpsumDictionary.length-1))+loremipsumWord(myWord.substr(loremIpsumDictionary.length-1)); // The word is longer than the longest words in the dictionary. So it's split in two.
              } else {               
              replacementWord = loremIpsumDictionary[wordLength][Math.floor(Math.random()*loremIpsumDictionary[wordLength].length)]; // finds a random word of the same length
              if (myWord.toLowerCase()!=myWord){ // the word contains uppercase characters
                   correctCaseWord = "";
                   for (var n=0; n<wordLength; n++){ // loops through each character in the original word, checking if it's upper or lower case.
                        correctCaseWord += myWord.charAt(n).toUpperCase()==myWord.charAt(n)? replacementWord.charAt(n).toUpperCase(): replacementWord.charAt(n); // makes the character the correct case
                   }
                   replacementWord = correctCaseWord;
              }
         }
         return replacementWord;
    }
}