2015/advent5.sh

   1 if [[ $part1 ]]; then
   2
   3 nice=0
   4 while read word; do
   5     case $word in
   6         *ab*|*cd*|*pq*|*xy*) ;;
   7         *[aeiou]*[aeiou]*[aeiou]*)
   8         case $word in
   9             *aa*|*bb*|*cc*|*dd*|*ee*|*ff*|*gg*|*hh*|*ii*|*jj*|*kk*|*ll*|*mm*|\
  10             *nn*|*oo*|*pp*|*qq*|*rr*|*ss*|*tt*|*uu*|*vv*|*ww*|*xx*|*yy*|*zz*)
  11                 nice=$((nice+1))
  12         esac
  13     esac
  14 done
  15 echo $nice
  16
  17 else
  18
  19 nice=0
  20 patt1=
  21 for l1 in {a..z}; do
  22     for l2 in {a..z}; do
  23         patt1+="|*$l1$l2*$l1$l2*"
  24     done
  25 done
  26 patt2=
  27 for l in {a..z}; do
  28     patt2+="|*$l?$l*"
  29 done
  30 while read word; do
  31     eval 'case $word in '"${patt1##?}"') ;; *) continue ;; esac'
  32     eval 'case $word in '"${patt2##?}"') ;; *) continue ;; esac'
  33     nice=$((nice+1))
  34 done
  35 echo $nice
  36
  37 fi