74   fn esc(i: &[u8]) -> IResult<&[u8], &[u8]> {  in escaping()  function
77   assert_eq!(esc(&b"abcd;"[..]), Ok((&b";"[..], &b"abcd"[..])));  in escaping()
78   assert_eq!(esc(&b"ab\\\"cd;"[..]), Ok((&b";"[..], &b"ab\\\"cd"[..])));  in escaping()
79   assert_eq!(esc(&b"\\\"abcd;"[..]), Ok((&b";"[..], &b"\\\"abcd"[..])));  in escaping()
80   assert_eq!(esc(&b"\\n;"[..]), Ok((&b";"[..], &b"\\n"[..])));  in escaping()
81   assert_eq!(esc(&b"ab\\\"12"[..]), Ok((&b"12"[..], &b"ab\\\""[..])));  in escaping()
83     esc(&b"AB\\"[..]),  in escaping()
90     esc(&b"AB\\A"[..]),  in escaping()
109   fn esc(i: &str) -> IResult<&str, &str> {
112   assert_eq!(esc("abcd;"), Ok((";", "abcd")));
113   assert_eq!(esc("ab\\\"cd;"), Ok((";", "ab\\\"cd")));
114   assert_eq!(esc("\\\"abcd;"), Ok((";", "\\\"abcd")));
115   assert_eq!(esc("\\n;"), Ok((";", "\\n")));
116   assert_eq!(esc("ab\\\"12"), Ok(("12", "ab\\\"")));
118     esc("AB\\"),
122     esc("AB\\A"),
149   fn esc(i: &[u8]) -> IResult<&[u8], String> {  in escape_transform()  function
164   assert_eq!(esc(&b"abcd;"[..]), Ok((&b";"[..], String::from("abcd"))));  in escape_transform()
166     esc(&b"ab\\\"cd;"[..]),  in escape_transform()
170     esc(&b"\\\"abcd;"[..]),  in escape_transform()
173   assert_eq!(esc(&b"\\n;"[..]), Ok((&b";"[..], String::from("\n"))));  in escape_transform()
175     esc(&b"ab\\\"12"[..]),  in escape_transform()
179     esc(&b"AB\\"[..]),  in escape_transform()
186     esc(&b"AB\\A"[..]),  in escape_transform()
220   fn esc(i: &str) -> IResult<&str, String> {
232   assert_eq!(esc("abcd;"), Ok((";", String::from("abcd"))));
233   assert_eq!(esc("ab\\\"cd;"), Ok((";", String::from("ab\"cd"))));
234   assert_eq!(esc("\\\"abcd;"), Ok((";", String::from("\"abcd"))));
235   assert_eq!(esc("\\n;"), Ok((";", String::from("\n"))));
236   assert_eq!(esc("ab\\\"12"), Ok(("12", String::from("ab\""))));
238     esc("AB\\"),
245     esc("AB\\A"),