digraph_get('NU') returns 0xA

[John Passaro]

:echo char2nr(digraph_get('NU')) prints "10". this would seem to disagree with :h digraphs, which says that NU maps to "0" i.e. the null char. I don't think this is the result of an override as i certainly haven't tried to enact one and it happens even with -u NONE.

is this a bug?

[Bram Moolenaar]

Since the NUL byte terminates a string in C, it is internally replaced
with NL, 0x0A. When written to a file it is changed back to a NUL.
I most places you don't notice this, but sometimes it does.

> is this a bug?

Nope.

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[John Passaro]

thank you for the explanation! from the perspective of interpreting the output of digraph_get*() functions, would this be the case any time it returns 0x0A, or is this a special case for "NU"?