Day 24

24/interpreter.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+program=''
+input=$1
+input_i=0
+while read line; do
+  case $line in
+    "inp"*)
+      program="${program}${line:4}"'=${input:$input_i:1};input_i=$((input_i+1));'
+      ;;
+    "add"*)
+      program="${program}${line:4:1}="'$(('"${line:4:1}+${line:6}"'))'";"
+      ;;
+    "mul"*)
+      program="${program}${line:4:1}="'$(('"${line:4:1}*${line:6}"'))'";"
+      ;;
+    "div"*)
+      program="${program}${line:4:1}="'$(('"${line:4:1}/${line:6}"'))'";"
+      ;;
+    "mod"*)
+      program="${program}${line:4:1}="'$(('"${line:4:1}%${line:6}"'))'";"
+      ;;
+    "eql"*)
+      program="${program}${line:4:1}="'$(('"${line:4:1}==${line:6}"'))'";"
+      ;;
+  esac
+done
+
+w=0
+x=0
+y=0
+z=0
+eval $program
+
+echo w=$w
+echo x=$x
+echo y=$y
+echo z=$z