NS_COM char* nsEscape(const char * str, nsEscapeMask mask)
NS_COM char* nsEscape(const char * str, nsEscapeMask flags)
NS_COM char* nsEscape(const char * str, nsEscapeMask mask)//----------------------------------------------------------------------------------------{    if(!str)        return NULL;    return nsEscapeCount(str, (PRInt32)strlen(str), mask, NULL);}