Disallow leading 0s in integers/floats
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@ -466,9 +466,22 @@ impl<'a> Parser<'a> {
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fn number_or_datetime(&mut self, mut start: usize) -> Option<Value> {
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let sign = if self.eat('+') { start += 1; true } else {self.eat('-')};
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let mut is_float = false;
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if self.eat('0') {
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match self.peek(0) {
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Some((pos, c)) if '0' <= c && c <= '9' => {
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self.errors.push(ParserError {
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lo: start,
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hi: pos,
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desc: format!("leading zeroes are not allowed"),
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});
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return None
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}
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_ => {}
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}
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}
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loop {
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match self.cur.clone().next() {
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Some((_, ch)) if ch.is_digit(10) => { self.cur.next(); }
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Some((_, ch)) if '0' <= ch && ch <= '9' => { self.cur.next(); }
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Some((_, '.')) if !is_float => {
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is_float = true;
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self.cur.next();
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@ -983,4 +996,16 @@ trimmed in raw strings.
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assert!(Parser::new("a = \"\n\"").parse().is_none());
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assert!(Parser::new("a = '\n'").parse().is_none());
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}
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#[test]
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fn bad_leading_zeros() {
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assert!(Parser::new("a = 00").parse().is_none());
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assert!(Parser::new("a = -00").parse().is_none());
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assert!(Parser::new("a = +00").parse().is_none());
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assert!(Parser::new("a = 00.0").parse().is_none());
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assert!(Parser::new("a = -00.0").parse().is_none());
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assert!(Parser::new("a = +00.0").parse().is_none());
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assert!(Parser::new("a = 9223372036854775808").parse().is_none());
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assert!(Parser::new("a = -9223372036854775809").parse().is_none());
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}
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}
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