ert

examples/ert.lua

@@ -0,0 +1,45 @@
+ert_group = -1
+ert_string = string.rep(" ", 128)
+
+function command(cmd, param)
+    if cmd:lower() == "request" then
+        local cr_pos = ert_string:find("\r", 1, true) -- true means "plain search" (faster)
+        local display_text
+
+        if cr_pos then
+            display_text = ert_string:sub(1, cr_pos - 1)
+        else
+            -- No CR found yet, show the whole 128 bytes (trimmed of trailing spaces)
+            display_text = ert_string:gsub("%s+$", "") 
+        end
+        db.add_value("ERT", display_text)
+    end
+end
+
+function group(stream, b_corr, a, b, c, d)
+    if stream ~= 0 and a ~= 0 then return
+    elseif stream ~= 0 and not db.load_boolean("rdsspy.ini", "General", "Tunnelling", false) then return end
+
+    if b_corr then return end
+
+    local group = (b & 0xf000) >> 12
+    local group_version = (b & 0x800) >> 11
+
+    if group == 3 and group_version == 0 then
+        local oda_group = (b & 0x1f) >> 1
+        local oda_group_version = b & 1
+        if d == 0x6552 and oda_group_version == 0 then
+            -- ERT
+            ert_group = oda_group
+        elseif oda_group == ert_group then ert_group = -1 end
+    elseif group == ert_group and group_version == 0 then
+        local ert_state = b & 0x1f
+        local char1 = string.char((c >> 8) & 0xff)
+        local char2 = string.char(c & 0xff)
+        local char3 = string.char((d >> 8) & 0xff)
+        local char4 = string.char(d & 0xff)
+        local new_chars = char1..char2..char3..char4
+        local start_pos = (ert_state * 4) + 1
+        ert_string = ert_string:sub(1, start_pos - 1) .. new_chars .. ert_string:sub(start_pos + 4)
+    end
+end

plugin.lua

@@ -34,8 +34,8 @@ function db.read_value(key) end
 ---@return string|nil
 function db.read_record(index) end
 
----@param key integer
+---@param key string
----@param value integer
+---@param value string
 function db.add_value(key, value) end
 
 function db.reset_values(key, value) end