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use nom::bytes::complete::escaped;
use nom::character::complete::digit1;
use nom::character::complete::one_of;
use nom::{error::ErrorKind, Err, IResult};
fn esc(s: &str) -> IResult<&str, &str, (&str, ErrorKind)> {
escaped(digit1, '\\', one_of("\"n\\"))(s)
}
#[cfg(feature = "alloc")]
fn esc_trans(s: &str) -> IResult<&str, String, (&str, ErrorKind)> {
use nom::bytes::complete::{escaped_transform, tag};
escaped_transform(digit1, '\\', tag("n"))(s)
}
#[test]
fn test_escaped() {
assert_eq!(esc("abcd"), Err(Err::Error(("abcd", ErrorKind::Escaped))));
}
#[test]
#[cfg(feature = "alloc")]
fn test_escaped_transform() {
assert_eq!(
esc_trans("abcd"),
Err(Err::Error(("abcd", ErrorKind::EscapedTransform)))
);
}