1348                     kind: ast::FlagsItemKind::Flag(self.parse_flag()?),  in parse_flags()
1378     fn parse_flag(&self) -> Result<ast::Flag> {  in parse_flag()  method
4113     fn parse_flag() {  in parse_flag()  function
4114         assert_eq!(parser("i").parse_flag(), Ok(ast::Flag::CaseInsensitive));  in parse_flag()
4115         assert_eq!(parser("m").parse_flag(), Ok(ast::Flag::MultiLine));  in parse_flag()
4116         assert_eq!(parser("s").parse_flag(), Ok(ast::Flag::DotMatchesNewLine));  in parse_flag()
4117         assert_eq!(parser("U").parse_flag(), Ok(ast::Flag::SwapGreed));  in parse_flag()
4118         assert_eq!(parser("u").parse_flag(), Ok(ast::Flag::Unicode));  in parse_flag()
4119         assert_eq!(parser("x").parse_flag(), Ok(ast::Flag::IgnoreWhitespace));  in parse_flag()
4122             parser("a").parse_flag().unwrap_err(),  in parse_flag()
4129             parser("☃").parse_flag().unwrap_err(),  in parse_flag()