characterCount property
      
      int
      get
      characterCount
      
    
    
Getter which returns the count of the human readable characters.
Using the following regular expression to remove all html tags, tabs, new lines,
spaces and html entities: RegExp(r"<[^>]*>|[\t\n\r ]|&[^;]+;")
Implementation
int get characterCount => html.replaceAll(RegExp(r"<[^>]*>|[\t\n\r ]|&[^;]+;"), "").trim().length;