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local topic = ... or "intro"
if topic == "index" then
print("Help topics availiable:")
textutils.pagedTabulate(help.topics())
else
local file_name = help.lookup(topic)
if not file_name then error("No help available", 0) end
local file = fs.open(file_name, "r")
-- Shouldn't happen, but nice to handle anyway
if not file then error("No help available", 0) end
local contents = file.readAll()
file.close()
local _, height = term.getCursorPos()
textutils.pagedPrint(contents, height - 3)
end
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