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Fix associativity of addition and subtraction

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This commit is contained in:
Tiffany Bennett 2016-08-22 17:11:02 -04:00
parent 7158fe81e1
commit b4f3d02539
1 changed files with 6 additions and 6 deletions
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12
src/text_query.rs
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@ -468,20 +468,20 @@ fn parse_suffix(mut iter: &mut Iter) -> Expr {
}
fn parse_add(mut iter: &mut Iter) -> Expr {
let left = parse_suffix(iter);
match *iter.peek().unwrap() {
let mut left = parse_suffix(iter);
loop { match *iter.peek().unwrap() {
Token::Plus => {
iter.next();
let right = parse_suffix(iter);
Expr::Add(Box::new(left), Box::new(right))
left = Expr::Add(Box::new(left), Box::new(right))
},
Token::Minus => {
iter.next();
let right = parse_suffix(iter);
Expr::Sub(Box::new(left), Box::new(right))
left = Expr::Sub(Box::new(left), Box::new(right))
},
_ => left
}
_ => return left
}}
}
fn parse_eq(mut iter: &mut Iter) -> Expr {