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Filename : table.lua

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-- make table, grouping all data for the same item
-- input is 2 columns (item, data)

local A
while 1 do
 local l=io.read()
 if l==nil then break end
 local _,_,a,b=string.find(l,'"?([_%w]+)"?%s*(.*)$')
 if a~=A then A=a io.write("\n",a,":") end
 io.write(" ",b)
end
io.write("\n")