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package server
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func lowerSlice(buf []byte) []byte {
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for i, r := range buf {
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if 'A' <= r && r <= 'Z' {
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r += 'a' - 'A'
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}
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buf[i] = r
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}
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return buf
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}
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func upperSlice(buf []byte) []byte {
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for i, r := range buf {
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if 'a' <= r && r <= 'z' {
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r -= 'a' - 'A'
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}
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buf[i] = r
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}
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return buf
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}
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