#!/usr/bin/perl
use warnings;
use strict;
use feature "switch";
#use experimental qw( switch );

open (LIB, $ARGV[1]) ;
my $prefix = $ARGV[0];
my @cells = (
	      # conb - 1
	      'conb_1',

              # AND - 9
              'and2_1','and2_2','and2_4',
              'and3_1','and3_2','and3_4',
              'and4_1','and4_2','and4_4',

              # Buffer - 5
              'buf_1','buf_2','buf_4','buf_8','buf_16',

              # Clock Buffer - 5
              'clkbuf_1','clkbuf_2','clkbuf_4','clkbuf_8','clkbuf_16',

              # Inverters - 5
              'inv_1','inv_2','inv_4','inv_8','inv_16',

              # Majority - 3
              'maj3_1','maj3_2','maj3_4',

              # Multiplexors - 10
              'mux2_1','mux2_2','mux2_4','mux2_8',
              'mux2i_1','mux2i_2','mux2i_4',
              'mux4_1','mux4_2','mux4_4',

              # NAND - 10
              'nand2_1','nand2_2','nand2_4','nand2_8',
              'nand3_1','nand3_2','nand3_4',
              'nand4_1','nand4_2','nand4_4',

              # NOR - 10
              'nor2_1','nor2_2','nor2_4','nor2_8',
              'nor3_1','nor3_2','nor3_4',
              'nor4_1','nor4_2','nor4_4',

              # OR - 9
              'or2_1','or2_2','or2_4',
              'or3_1','or3_2','or3_4',
              'or4_1','or4_2','or4_4',

              # XOR - 4
              'xor2_1','xor2_2','xor2_4',
              'xor3_1',

              # XNOR - 4
              'xnor2_1','xnor2_2','xnor2_4',
              'xnor3_1',

              # OA & OAI - 24
              'o41a_1', 'o41a_2', 'o41a_4',
              'o41ai_1', 'o41ai_2', 'o41ai_4',
              'o32a_1', 'o32a_2', 'o32a_4',
              'o32ai_1', 'o32ai_2', 'o32ai_4',
              #'o22a_1',
              'o22a_2', 'o22a_4',
              #'o22ai_1',
              'o22ai_2', 'o22ai_4',
              #'o21a_1',
              'o21a_2', 'o21a_4',
              #'o21ai_1',
              'o21ai_2', 'o21ai_4',

              # AO & AOI - 48
              'a41o_1', 'a41o_2', 'a41o_4',
              'a41oi_1', 'a41oi_2', 'a41oi_4',

              'a32o_1', 'a32o_2', 'a32o_4',
              'a32oi_1', 'a32oi_2', 'a32oi_4',

              'a22o_1', 'a22o_2', 'a22o_4',
              'a22oi_1', 'a22oi_2', 'a22oi_4',
              'a21o_1', 'a21o_2', 'a21o_4',
              'a21bo_1', 'a21bo_2', 'a21bo_4',
              'a21oi_1', 'a21oi_2', 'a21oi_4',
              'a21boi_1', 'a21boi_2', 'a21boi_4',
              'a2111o_1', 'a2111o_2', 'a2111o_4',
              'a2111oi_1', 'a2111oi_2', 'a2111oi_4',
              'a211o_1', 'a211o_2', 'a211o_4',
              'a211oi_1', 'a211oi_2', 'a211oi_4',

              'a2bb2oi_1', 'a2bb2oi_2', 'a2bb2oi_4'.
              'a2bb2o_1', 'a2bb2o_2', 'a2bb2o_4'.

              # FF - 20
              'dfrtn_1',
              'dfbbn_1', 'dfbbn_2',
              'dfbbp_1',
              'dfxbp_1', 'dfxbp_2',
              'edfxbp_1',
              'dfxtp_1', 'dfxtp_2', 'dfxtp_4',
              'dfrbp_1', 'dfrbp_2',
              'dfrtp_1', 'dfrtp_2', 'dfrtp_4',
              'dfsbp_1', 'dfsbp_2',
              'dfstp_1', 'dfstp_2', 'dfstp_4',


              );
#if (grep { $_ eq 'flour' } @ingredients) { ... }

my $state = 0;
my $count = 0;
while(my $line=<LIB>){
   given ($state) {
     when ($state==0){
       #print $line;
       if ($line =~ /cell\s*\(\"?${prefix}_(.*?)\"?\)/) {
          #print "$1\n";
          if (grep { $_ eq $1 } @cells) {
            $state = 1;
            print $line;
          } else {
            $state = 2;
            print "/* removed $1 */\n"
          }
          $count = 1;
       } else {
         print $line;
       }
     }

     when($state==1){
        $count++ if ($line =~ /\{/);
        $count-- if ($line =~ /\}/);
        $state = 0 if($count==0);
        print $line;
        }


     when($state==2){
        $count++ if ($line =~ /\{/);
        $count-- if ($line =~ /\}/);
        $state = 0 if($count==0);
        }


     }
}