Finished problem 1

2015/puzzle-1.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env sh
+text=$(< 1-input)
+open=$(echo $text | tr -d ')' | wc -c)
+close=$(echo $text | tr -d '(' | wc -c)
+
+echo "Round 1:" $(($open - $close))
+
+current=0
+pos=1
+while read -n1 char
+do
+    case $char in
+        "(" )
+            current=$(($current + 1))
+            ;;
+        ")" )
+            current=$(($current - 1))
+            ;;
+    esac
+    if [ $current -lt 0 ]
+    then
+       break;
+    fi
+    pos=$(($pos + 1))
+done < <(printf "%s" $text | tr -d '\n')
+
+echo "Round 2:" $pos