Matthew Barnett <pyt...@mrabarnett.plus.com> added the comment:
Octal escapes are at most 3 octal digits, so the normal way to handle "\41" +
"1" is "\0411".
Some languages support variable-length hex escapes of the form "\x{1B}", so we
could add that and also "\o{41}" for octal.
BTW, in some languages "\e" is "\x1B".
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nosy: +mrabarnett
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