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inline: impl smart em/endash

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This commit is contained in:
Noah Hellman 2023-01-28 09:30:28 +01:00
parent b10798b778
commit a03d46dfaf
1 changed files with 22 additions and 2 deletions
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24
src/inline.rs
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@ -601,8 +601,28 @@ impl<I: Iterator<Item = char> + Clone> Parser<I> {
}); });
} }
} }
lex::Kind::Seq(lex::Sequence::Hyphen) if first.len == 2 => EnDash, lex::Kind::Seq(lex::Sequence::Hyphen) if first.len >= 2 => {
lex::Kind::Seq(lex::Sequence::Hyphen) if first.len == 3 => EmDash, let (m, n) = if first.len % 3 == 0 {
(first.len / 3, 0)
} else if first.len % 2 == 0 {
(0, first.len / 2)
} else {
let n = (1..).find(|n| (first.len - 2 * n) % 3 == 0).unwrap();
((first.len - 2 * n) / 3, n)
};
std::iter::repeat(EmDash)
.take(m)
.chain(std::iter::repeat(EnDash).take(n))
.for_each(|atom| {
let l = if matches!(atom, EnDash) { 2 } else { 3 };
self.events.push_back(Event {
kind: EventKind::Atom(atom),
span: self.span.with_len(l),
});
self.span = self.span.skip(l);
});
return self.events.pop_back();
}
lex::Kind::Open(lex::Delimiter::BraceQuote1) => Quote { lex::Kind::Open(lex::Delimiter::BraceQuote1) => Quote {
ty: QuoteType::Single, ty: QuoteType::Single,
left: true, left: true,