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63 lines
2.4 KiB
Lua
63 lines
2.4 KiB
Lua
local ert_group = -1
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local ert_string = string.rep("_", 128)
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local ert_last_carriage = -1
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local ert_console_log = false
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function command(cmd, param)
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if cmd:lower() == "request" and param:lower() == "decoderdata" then
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local cr_pos = ert_string:find("\r", 1, true) -- true means "plain search" (faster)
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local display_text
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if cr_pos then display_text = ert_string:sub(1, cr_pos - 1)
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else display_text = ert_string:gsub("%s+$", "")
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end
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db.add_value("ERT", display_text)
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elseif cmd:lower() == "resetdata" then
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ert_group = -1
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ert_string = string.rep("_", 128)
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ert_last_carriage = -1
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if ert_console_log then log("ERT data reset.")
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else set_console_mode(true) end
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end
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end
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function group(stream, b_corr, a, b, c, d)
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if stream ~= 0 and a ~= 0 then return
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elseif stream ~= 0 and not db.load_boolean("rdsspy.ini", "General", "Tunnelling", false) then return end
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if b_corr or b < 0 or c < 0 or d < 0 then return end
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local group = (b & 0xf000) >> 12
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local group_version = (b & 0x800) >> 11
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if group == 3 and group_version == 0 then
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local oda_group = (b & 0x1f) >> 1
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local oda_group_version = b & 1
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if d == 0x6552 and oda_group_version == 0 then
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-- ERT
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ert_group = oda_group
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elseif oda_group == ert_group then ert_group = -1 end
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elseif group == ert_group and group_version == 0 then
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local ert_state = b & 0x1f
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local char1 = string.char((c >> 8) & 0xff)
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local char2 = string.char(c & 0xff)
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local char3 = string.char((d >> 8) & 0xff)
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local char4 = string.char(d & 0xff)
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local new_chars = char1..char2..char3..char4
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local start_pos = (ert_state * 4) + 1
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ert_string = ert_string:sub(1, start_pos - 1) .. new_chars .. ert_string:sub(start_pos + 4)
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local ert_carriage = ert_string:find("\r", 1, true)
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if ert_carriage ~= ert_last_carriage and ert_carriage ~= nil and ert_console_log then
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log("New ERT string received.")
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ert_last_carriage = ert_carriage
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elseif not ert_console_log then
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local display_text
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if ert_carriage then display_text = ert_string:sub(1, ert_carriage - 1)
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else display_text = ert_string:gsub("%s+$", "") end
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set_console(string.format("ERT: %s", display_text))
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end
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end
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end |