(no version information, might be only in CVS)
tidy_get_opt_doc -- 
   Returns the documentation for the given option name
  
说明
Procedural style:
string 
tidy_get_opt_doc ( tidy object, string optname )
Object oriented style:
string 
tidy->getOptDoc ( string optname )
   tidy_get_opt_doc() returns the documentation for the
   given option name.
  
注: 
    You need at least libtidy from 25 April, 2005 for this function be
    available.