32 lines
649 B
Lua
32 lines
649 B
Lua
local csv={}
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for line in io.lines('file.csv') do
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table.insert(csv, {})
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local i=1
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for j=1,#line do
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if line:sub(j,j) == ',' then
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table.insert(csv[#csv], line:sub(i,j-1))
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i=j+1
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end
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end
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table.insert(csv[#csv], line:sub(i,j))
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end
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table.insert(csv[1], 'SUM')
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for i=2,#csv do
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local sum=0
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for j=1,#csv[i] do
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sum=sum + tonumber(csv[i][j])
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end
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if sum>0 then
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table.insert(csv[i], sum)
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end
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end
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local newFileData = ''
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for i=1,#csv do
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newFileData=newFileData .. table.concat(csv[i], ',') .. '\n'
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end
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local file=io.open('file.csv', 'w')
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file:write(newFileData)
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