Add server response parser

lib/net.sh

@@ -11,3 +11,9 @@ exec {sock}<>/dev/tcp/"$host"/"$port"
 redis_send() {
   printf %s "$@" >&"$sock"
 }
+
+redis_recv() {
+  if (( $# )); then
+    IFS= read -rt 5 "$1" <&"$sock"
+  fi
+}

lib/serv.sh

@@ -0,0 +1,68 @@
+parse_res() {
+  local line=${1%$'\r'}
+
+  case $line in
+  +*)
+    parse_simple "$line"
+    ;;
+  -*)
+    parse_err "$line"
+    ;;
+  :*)
+    parse_int "$line"
+    ;;
+  \$*)
+    parse_bulk "$line"
+    ;;
+  \**)
+    parse_arr "$line"
+    ;;
+  *)
+    parse_other "$line"
+  esac
+}
+
+parse_simple() {
+  (( lines_left -= 1 ))
+  printf '%s\n' "${1:1}"
+}
+
+parse_int() {
+  (( lines_left -= 1 ))
+  printf '(integer) %d\n' "${1:1}"
+}
+
+parse_err() {
+  (( lines_left -= 1 ))
+  printf '(error) %s\n' "${1:1}"
+}
+
+parse_bulk() {
+  bulk=1
+}
+
+parse_arr() {
+  lines_left=${1:1}
+  arr=1
+}
+
+parse_other() {
+  (( lines_left -= 1 ))
+
+  if (( arr )); then
+    printf '%d) ' "$arr"
+    (( arr++ ))
+  fi
+
+  if (( bulk )); then
+    printf '"'
+  fi
+
+  printf %s "$1"
+
+  if (( bulk )); then
+    printf '"'
+  fi
+
+  printf '\n'
+}

redish-cli

@@ -30,4 +30,11 @@ fi
 while get_cmd line; do
   parse_cmd redis_cmd redis_line "$line"
   redis_send "$redis_line"
+
+  lines_left=1
+  bulk=0 arr=0
+
+  while (( lines_left )) && redis_recv line; do
+    parse_res "$line"
+  done
 done