Add format specifiers to factoids

rowbot

@@ -962,12 +962,37 @@ plugin_not_found_factoids() {
     # The exit status isn't important here.
     # shellcheck disable=SC2155
     local fact=$(<"${config[fact-root]}"/"${msg[to]}"/"$action")
+    local target idx fmt_fact
 
     if [[ ${action_args[0]} = \> ]] && (( ${#action_args[@]} > 1 )); then
-      irc_privmsg "${msg[to]}" "${action_args[-1]}: $fact"
+      target=${action_args[-1]}
     else
-      irc_privmsg "${msg[to]}" "${msg[from]}: $fact"
+      target=${msg[from]}
     fi
+
+    for (( idx = 0; idx < ${#fact}; idx += 1 )); do
+      if [[ ${fact:idx:1} = % ]] && (( idx + 1 < ${#fact} )); then
+        (( idx += 1 ))
+
+        case ${fact:idx:1} in
+        t)
+          fmt_fact+=$target
+          ;;
+        c)
+          fmt_fact+=${msg[from]}
+          ;;
+        r)
+          fmt_fact+=$(random 0 100)
+          ;;
+        *)
+          fmt_fact+=${fact:idx:1}
+        esac
+      else
+        fmt_fact+=${fact:idx:1}
+      fi
+    done
+
+    irc_privmsg "${msg[to]}" "$target: $fmt_fact"
   fi
 }