That is pretty misleading (or just incorrect). "\n" and "\x0A" are exactly the same thing unless you are on a non-ASCII system or an old Mac. Using "\x0A" is only an improvement when on an old Mac. On a non-ASCII system, using "\x0A" is likely to simply break things. On all other systems, using "\x0A" is identical to using "\n".
So, there are no systems where "\x0A" is likely to be subject to fewer translations (since old Macs don't translate either character and non-ASCII systems will likely be translating the whole character set or none of it, depending on destination).
Your second paragraph is correct if you add "on an ASCII system".
- tye
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