Global Variables

divider.cshtml

var divider = (i == 2) ? " | " : 
              (i > 2) ? " - " : "";

fullCode.cshtml

@using umbraco.MacroEngines
@inherits umbraco.MacroEngines.DynamicNodeContext
@{
  var pageLevel = @Model.Level;
  var current = "";
  for (var i = pageLevel; i >= 1; i--){
    var divider = (i == 2) ? " | " : 
                  (i > 2) ? " - " : ""; 
    current += (Model.AncestorOrSelf(i).HasValue("shortPageTitle") && pageLevel != 1) ? Model.AncestorOrSelf(i).shortPageTitle + divider :
               (Model.AncestorOrSelf(i).HasValue("pageTitle")) ? Model.AncestorOrSelf(i).pageTitle + divider :
                Model.AncestorOrSelf(i).Name + divider;
}
  var pageTitle = current;
}
@pageTitle

globalVars.cshtml

var pageLevel = @Model.Level;
var current = "";

loop.cshtml

for (var i = pageLevel; i >= 1; i--){
}

titleOutput.cshtml

current += (Model.AncestorOrSelf(i).HasValue("shortPageTitle") && pageLevel != 1) ?  Model.AncestorOrSelf(i).shortPageTitle + divider : 
             (Model.AncestorOrSelf(i).HasValue("pageTitle")) ? Model.AncestorOrSelf(i).pageTitle + divider : 
             Model.AncestorOrSelf(i).Name + divider;