49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
#![allow(dead_code)]
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use nom::bytes::streaming::tag;
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use nom::character::streaming::digit1 as digit;
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use nom::combinator::verify;
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use nom::error::{ErrorKind, ParseError};
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#[cfg(feature = "alloc")]
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use nom::multi::count;
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use nom::sequence::terminated;
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use nom::IResult;
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#[derive(Debug)]
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pub struct CustomError(String);
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impl<'a> From<(&'a str, ErrorKind)> for CustomError {
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fn from(error: (&'a str, ErrorKind)) -> Self {
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CustomError(format!("error code was: {:?}", error))
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}
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}
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impl<'a> ParseError<&'a str> for CustomError {
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fn from_error_kind(_: &'a str, kind: ErrorKind) -> Self {
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CustomError(format!("error code was: {:?}", kind))
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}
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fn append(_: &'a str, kind: ErrorKind, other: CustomError) -> Self {
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CustomError(format!("{:?}\nerror code was: {:?}", other, kind))
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}
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}
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fn test1(input: &str) -> IResult<&str, &str, CustomError> {
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//fix_error!(input, CustomError, tag!("abcd"))
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tag("abcd")(input)
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}
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fn test2(input: &str) -> IResult<&str, &str, CustomError> {
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//terminated!(input, test1, fix_error!(CustomError, digit))
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terminated(test1, digit)(input)
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}
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fn test3(input: &str) -> IResult<&str, &str, CustomError> {
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verify(test1, |s: &str| s.starts_with("abcd"))(input)
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}
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#[cfg(feature = "alloc")]
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fn test4(input: &str) -> IResult<&str, Vec<&str>, CustomError> {
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count(test1, 4)(input)
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}
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