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fix: recognize unary operators

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This commit is contained in:
electria 2026-07-15 21:51:12 -07:00
commit ee18ae3222
Signed by: electria
SSH key fingerprint: SHA256:8LlB3ucPbBHqozqkhsNbaV5oG3SlzzqUj8FZDL6IPQs
1 changed files with 7 additions and 3 deletions
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4
src/nodes/from_str.rs
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@ -77,6 +77,9 @@ impl FromStr for Nodes {
nodes.push(Node::ParenthesisStart);
} else if c == ')' {
nodes.push(Node::ParenthesisEnd);
} else {
if matches!(nodes.last(), Some(Node::Operator(_)) | None) {
state = ParsingState::ReadingNumber(i);
} else {
nodes.push(Node::Operator(
c.try_into().map_err(|()| Error::InvalidOperator(c))?,
@ -84,6 +87,7 @@ impl FromStr for Nodes {
}
}
}
}
let i = filtered_string.len();
match state {