diff --git a/src/libregex/parse.rs b/src/libregex/parse.rs index b7313ff6c1a1..35583be372cb 100644 --- a/src/libregex/parse.rs +++ b/src/libregex/parse.rs @@ -374,10 +374,6 @@ impl<'a> Parser<'a> { let mut ranges: Vec<(char, char)> = vec!(); let mut alts: Vec = vec!(); - if self.peek_is(1, ']') { - try!(self.expect(']')); - ranges.push((']', ']')) - } while self.peek_is(1, '-') { try!(self.expect('-')); ranges.push(('-', '-')) @@ -411,7 +407,7 @@ impl<'a> Parser<'a> { ast => fail!("Unexpected AST item '{}'", ast), } } - ']' => { + ']' if ranges.len() > 0 || alts.len() > 0 => { if ranges.len() > 0 { let flags = negated | (self.flags & FLAG_NOCASE); let mut ast = AstClass(combine_ranges(ranges), flags); diff --git a/src/libregex/test/tests.rs b/src/libregex/test/tests.rs index 4f4137265c03..06f7db274189 100644 --- a/src/libregex/test/tests.rs +++ b/src/libregex/test/tests.rs @@ -53,6 +53,13 @@ fn quoted_bracket_set() { assert_eq!(ms, vec![(0, 1), (1, 2)]); } +#[test] +fn first_range_starts_with_left_bracket() { + let re = regex!(r"([[-z])"); + let ms = re.find_iter("[]").collect::>(); + assert_eq!(ms, vec![(0, 1), (1, 2)]); +} + #[test] fn range_ends_with_escape() { let re = regex!(r"([\[-\x{5d}])");