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Don't ignore extra closing parentheses #16

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Apr 1, 2024
Merged

Don't ignore extra closing parentheses #16

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8 changes: 7 additions & 1 deletion src/parser.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -89,7 +89,13 @@ where
///
/// [1]: crate::ast
pub fn parse(mut self) -> Result<Node, ParseError> {
Ok(extract(self.parse_expr(0, false)?))
let result = extract(self.parse_expr(0, false)?);
if self.tokens.next().is_some() {
// The only case where this will happen is if the next token is a group close token
Err(ParseError::UnmatchedGroup)
} else {
Ok(result)
}
}

fn parse_expr(&mut self, min_bp: u32, accept_multi: bool) -> Result<Vec<Node>, ParseError> {
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