fix @{} regexp

shake

@@ -79,10 +79,11 @@ if [[ -n $line ]]; then
     line=${line//@FILENAME/$input_file}
     line=${line//@SHORT/${input_file%.*}}
     line=${line//@ARGS/$@}
-    line=$(echo "$line" | sed 's/\W*@STOP.*//')
+    line=$(echo "$line" | sed 's/@STOP.*//')
 
     echo -e "${BOLD}${GREEN}$0${NORMAL}: ${line#*${MARK}}"
-    echo=$(echo "$line" | sed 's/@{\(.*\)\([^\\]\)}.*$/\1\2/')
+
+    line=$(echo "$line" | sed -E 's/@\{([^ \}]+?)\}/\1/')
     command="${line#*${MARK}}"
     if [[ $run -eq 1 ]]; then
         echo -e "${BOLD}${GREEN}output${NORMAL}:"