#!/usr/bin/perl

# Copyright (c) Efabless Corporation. All rights reserved.
# See LICENSE file in the project root for full license information.
use warnings;
use strict;
use feature "switch";
#use experimental qw( switch );

open (LIB, $ARGV[1]) ;
my $prefix = $ARGV[0];
my @cells = (
# "xnor2_4",
# "dfstp_2",
# "xor3_4",
# "or2b_2",
# "xnor3_2",
# "sdfbbn_2",
# "sdfxtp_2",
# "dfxtp_2",
# "xor2_2",
# "o311ai_2",
# "nand2_2",
# "sdfrtp_2",
# "and4_2",
# "dfsbp_2",
# "or4_2",
# "inv_2",
# "dfrbp_2",
# "buf_8",
# "dlymetal6s4s_1",
# "xor2_4",
# "inv_4",
# "o31ai_2",
# "bufbuf_16",
# "dlygate4sd3_1",
# "o22ai_2",
# "o32ai_2",
# "and3_2",
# "o2111ai_2",
# "dlrbp_2",
# "and4bb_2",
# "nand3b_2",
# "buf_6",
# "and4b_2",
# "a2bb2oi_2",
# "buf_12",
# "and2_2",
# "dlxbn_2",
# "dlrtp_2",
# "xor3_1",
# "a21oi_2",
# "inv_12",
# "o21ai_2",
# "a311oi_2",
# "buf_4",
# "o21bai_2",
# "nand3_2",
# "dlygate4sd2_1",
# "o211ai_2",
# "or4b_2",
# "and3b_2",
# "or4bb_2",
# "sdfrbp_2",
# "o2bb2ai_2",
# "bufinv_16",
# "xor3_2",
# "o41ai_2",
# "or3b_2",
# "inv_8",
# "or2_2",
# "dfrtp_2",
# "bufbuf_8",
# "bufinv_8",
# "buf_16",
# "buf_2",
# "inv_6",
# "xnor3_4",
# "inv_16",
# "and2b_2",
# "a2111oi_2",
# "dfxbp_2",
# "xnor3_1",
# "dlymetal6s6s_1",
# "dfbbn_2",
# "o221ai_2",
# "sdfstp_2",
# "a31oi_2",
# "a211oi_2",
# "nand2b_2",
# "a22oi_2",
# "dlymetal6s2s_1",
# "dlxtn_2",
# "a21boi_2",
# "dlrtn_2",
# "a221oi_2",
# "or3_2",
# "sdfsbp_2",
# "xnor2_2",
# "sdfxbp_2"
              # conb - 1
              'conb_1',

              # AND - 9
              'and2_4',
              'and3_4',
              'and4_4',

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

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

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

              # Majority - 3
              'maj3_4',

              # Multiplexors - 10
              'mux4_4',

              # NAND - 10
              'nand2_4','nand2_8',
              'nand3_4',
              'nand4_4',

              # NOR - 10
              'nor2_4','nor2_8',
              'nor3_4',
              'nor4_4',

              # OR - 9
               'or2_4',
              'or3_4',
              'or4_4',

              # XOR - 4
              'xor2_4',


              # XNOR - 4
              'xnor2_4',

              # OA & OAI - 24
              'o41a_4',
              'o41ai_4',
              'o32a_4',
              'o32ai_4',
              #'o22a_1',
              'o22a_4',
              #'o22ai_1',
              'o22ai_4',
              #'o21a_1',
              'o21a_4',
              #'o21ai_1',
              'o21ai_4',

              # AO & AOI - 48
               'a41o_4',
               'a41oi_4',

               'a32o_4',
               'a32oi_4',

               'a22o_3',
               'a22oi_4',
               'a21o_4',
               'a21bo_4',
               'a21oi_4',
               'a21boi_4',
               'a2111o_4',
               'a2111oi_4',
               'a211o_4',

              'a2bb2oi_4'.
               'a2bb2o_4'.

              # FF - 20

              'dfbbn_2',

             'dfxbp_2',

               'dfxtp_4',
               'dfrbp_2',
               'dfrtp_4',

               '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);
        }


     }
}