fix various issues dont stop random *'s appearing

src/node/utils/ExportHtml.js

@@ -22,7 +22,6 @@ var ERR = require("async-stacktrace");
 var Security = require('ep_etherpad-lite/static/js/security');
 var hooks = require('ep_etherpad-lite/static/js/pluginfw/hooks');
 var getPadPlainText = require('./ExportHelper').getPadPlainText
-var _processSpaces = require('./ExportHelper')._processSpaces;
 var _analyzeLine = require('./ExportHelper')._analyzeLine;
 var _encodeWhitespace = require('./ExportHelper')._encodeWhitespace;
 
@@ -543,3 +542,57 @@ function _findURLs(text)
 
   return urls;
 }
+
+
+// copied from ACE
+function _processSpaces(s){
+  var doesWrap = true;
+  if (s.indexOf("<") < 0 && !doesWrap){
+    // short-cut
+    return s.replace(/ /g, '&nbsp;');
+  }
+  var parts = [];
+  s.replace(/<[^>]*>?| |[^ <]+/g, function (m){
+    parts.push(m);
+  });
+  if (doesWrap){
+    var endOfLine = true;
+    var beforeSpace = false;
+    // last space in a run is normal, others are nbsp,
+    // end of line is nbsp
+    for (var i = parts.length - 1; i >= 0; i--){
+      var p = parts[i];
+      if (p == " "){
+        if (endOfLine || beforeSpace) parts[i] = '&nbsp;';
+        endOfLine = false;
+        beforeSpace = true;
+      }
+      else if (p.charAt(0) != "<"){
+        endOfLine = false;
+        beforeSpace = false;
+      }
+    }
+    // beginning of line is nbsp
+    for (var i = 0; i < parts.length; i++){
+      var p = parts[i];
+      if (p == " "){
+        parts[i] = '&nbsp;';
+        break;
+      }
+      else if (p.charAt(0) != "<"){
+        break;
+      }
+    }
+  }
+  else
+  {
+    for (var i = 0; i < parts.length; i++){
+      var p = parts[i];
+      if (p == " "){
+        parts[i] = '&nbsp;';
+      }
+    }
+  }
+  return parts.join('');
+}
+