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local lang = arg[1] or error("No language supplied")
local tfn = string.format("advtrains.%s.tr", lang)
local f = io.open(tfn, "rb") or error("Cannot read from translation file")
local tf = {}
for l in f:lines() do
tf[#tf+1] = l
end
f:close()
local ot = {[0] = ""}
local f = io.open("template.txt", "rb") or error("Cannot read from translation template")
for l in f:lines() do
if l == "" then -- blank line
if ot[#ot] ~= l then ot[#ot+1] = l end
elseif l:find("^#") then -- comment
if ot[#ot] ~= l then ot[#ot+1] = l end
else
s = l:match("^(.+[^@]=)")
if s then
local found = false
for i = 1, #tf, 1 do
if tf[i]:find(s, 1, true) == 1 then
found = i
break
end
end
if found then
local fc = found-1
while fc > 0 do
if not tf[fc]:find("^#") then break end
fc = fc-1
end
for i = fc+1, found, 1 do
if ot[#ot] ~= tf[i] then ot[#ot+1] = tf[i] end
end
else
if ot[#ot] ~= l then ot[#ot+1] = l end
end
end
end
end
f:close()
local f = io.open(tfn..".new", "wb") or error("Cannot write to translation file")
f:write(table.concat(ot,"\n"))
f:close()
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