The parallel between the \textit{P\={a}\d{n}ini}'s \textit{s\={u}tra}s and
the computer algortihm
\begin{verbatim}
if(the input is from UPADE'SA)
    Mark the ANUNASIKA AC as INDICATOR
  if(the last var.na is HAL)
     if(it is neither VIBAKTI nor TUSMA)
        Mark it as INDICATOR
  if(the INITIAL var.na is either ~ni or .tu or .du)
     Mark it as INDICATOR
  if(the INITIAL var.na is a PRATYAYA) {
     if (it is .sa)
          MARK it as INDICATOR
     if(it is from ca varga or ta varga)
          Mark it as INDICATOR
     if(it is NOT TADDHITA)
        if(it is either la or 'sa or ka varga)
          Mark it as INDICATOR
  }
\end{verbatim}