#![allow(dead_code)]
#![cfg_attr(feature = "cargo-clippy", allow(redundant_closure))]
use nom8::input::Streaming;
use nom8::prelude::*;
use nom8::{error::ErrorKind, Err, IResult, Needed};
#[allow(dead_code)]
struct Range {
start: char,
end: char,
}
pub fn take_char(input: &[u8]) -> IResult<&[u8], char> {
if !input.is_empty() {
Ok((&input[1..], input[0] as char))
} else {
Err(Err::Incomplete(Needed::new(1)))
}
}
#[cfg(feature = "std")]
mod parse_int {
use nom8::input::HexDisplay;
use nom8::input::Streaming;
use nom8::prelude::*;
use nom8::{
character::{digit1 as digit, space1 as space},
combinator::opt,
multi::many0,
IResult,
};
use std::str;
fn parse_ints(input: Streaming<&[u8]>) -> IResult<Streaming<&[u8]>, Vec<i32>> {
many0(spaces_or_int)(input)
}
fn spaces_or_int(input: Streaming<&[u8]>) -> IResult<Streaming<&[u8]>, i32> {
println!("{}", input.to_hex(8));
let (i, _) = opt(space.complete())(input)?;
let (i, res) = digit
.complete()
.map(|x| {
println!("x: {:?}", x);
let result = str::from_utf8(x).unwrap();
println!("Result: {}", result);
println!("int is empty?: {}", x.is_empty());
match result.parse() {
Ok(i) => i,
Err(e) => panic!("UH OH! NOT A DIGIT! {:?}", e),
}
})
.parse(i)?;
Ok((i, res))
}
#[test]
fn issue_142() {
let subject = parse_ints(Streaming(&b"12 34 5689a"[..]));
let expected = Ok((Streaming(&b"a"[..]), vec![12, 34, 5689]));
assert_eq!(subject, expected);
let subject = parse_ints(Streaming(&b"12 34 5689 "[..]));
let expected = Ok((Streaming(&b" "[..]), vec![12, 34, 5689]));
assert_eq!(subject, expected)
}
}
#[test]
fn usize_length_bytes_issue() {
use nom8::multi::length_data;
use nom8::number::be_u16;
let _: IResult<Streaming<&[u8]>, &[u8], (Streaming<&[u8]>, ErrorKind)> =
length_data(be_u16)(Streaming(b"012346"));
}
#[test]
fn take_till_issue() {
use nom8::bytes::take_till;
fn nothing(i: Streaming<&[u8]>) -> IResult<Streaming<&[u8]>, &[u8]> {
take_till(|_| true)(i)
}
assert_eq!(
nothing(Streaming(b"")),
Err(Err::Incomplete(Needed::new(1)))
);
assert_eq!(
nothing(Streaming(b"abc")),
Ok((Streaming(&b"abc"[..]), &b""[..]))
);
}
#[test]
fn issue_655() {
use nom8::character::{line_ending, not_line_ending};
fn twolines(i: Streaming<&str>) -> IResult<Streaming<&str>, (&str, &str)> {
let (i, l1) = not_line_ending(i)?;
let (i, _) = line_ending(i)?;
let (i, l2) = not_line_ending(i)?;
let (i, _) = line_ending(i)?;
Ok((i, (l1, l2)))
}
assert_eq!(
twolines(Streaming("foo\nbar\n")),
Ok((Streaming(""), ("foo", "bar")))
);
assert_eq!(
twolines(Streaming("féo\nbar\n")),
Ok((Streaming(""), ("féo", "bar")))
);
assert_eq!(
twolines(Streaming("foé\nbar\n")),
Ok((Streaming(""), ("foé", "bar")))
);
assert_eq!(
twolines(Streaming("foé\r\nbar\n")),
Ok((Streaming(""), ("foé", "bar")))
);
}
#[cfg(feature = "alloc")]
fn issue_717(i: &[u8]) -> IResult<&[u8], Vec<&[u8]>> {
use nom8::bytes::{tag, take_till1};
use nom8::multi::separated_list0;
separated_list0(tag([0x0]), take_till1([0x0u8]))(i)
}
mod issue_647 {
use nom8::bytes::tag;
use nom8::multi::separated_list0;
use nom8::prelude::*;
use nom8::{error::Error, number::be_f64, Err, IResult};
pub type Input<'a> = nom8::input::Streaming<&'a [u8]>;
#[derive(PartialEq, Debug, Clone)]
struct Data {
c: f64,
v: Vec<f64>,
}
fn list<'a, 'b>(
input: Input<'a>,
_cs: &'b f64,
) -> Result<(Input<'a>, Vec<f64>), Err<Error<Input<'a>>>> {
separated_list0(tag(",").complete(), be_f64.complete())(input)
}
fn data(input: Input<'_>) -> IResult<Input<'_>, Data> {
let (i, c) = be_f64(input)?;
let (i, _) = tag("\n")(i)?;
let (i, v) = list(i, &c)?;
Ok((i, Data { c, v }))
}
}
#[test]
fn issue_848_overflow_incomplete_bits_to_bytes() {
fn take(i: Streaming<&[u8]>) -> IResult<Streaming<&[u8]>, &[u8]> {
use nom8::bytes::take;
take(0x2000000000000000_usize)(i)
}
fn parser(i: Streaming<&[u8]>) -> IResult<Streaming<&[u8]>, &[u8]> {
use nom8::bits::{bits, bytes};
bits(bytes(take))(i)
}
assert_eq!(
parser(Streaming(&b""[..])),
Err(Err::Failure(nom8::error_position!(
Streaming(&b""[..]),
ErrorKind::TooLarge
)))
);
}
#[test]
fn issue_942() {
use nom8::error::{ContextError, ParseError};
pub fn parser<'a, E: ParseError<&'a str> + ContextError<&'a str, &'static str>>(
i: &'a str,
) -> IResult<&'a str, usize, E> {
use nom8::{bytes::one_of, multi::many0_count};
many0_count(one_of('a').context("char_a"))(i)
}
assert_eq!(parser::<()>("aaa"), Ok(("", 3)));
}
#[test]
fn issue_many_m_n_with_zeros() {
use nom8::multi::many_m_n;
let mut parser = many_m_n::<_, _, (), _>(0, 0, 'a');
assert_eq!(parser("aaa"), Ok(("aaa", vec![])));
}
#[test]
fn issue_1027_convert_error_panic_nonempty() {
use nom8::error::{convert_error, VerboseError};
let input = "a";
let result: IResult<_, _, VerboseError<&str>> = ('a', 'b').parse(input);
let err = match result.unwrap_err() {
Err::Error(e) => e,
_ => unreachable!(),
};
let msg = convert_error(input, err);
assert_eq!(msg, "0: at line 1, in OneOf:\na\n ^\n\n",);
}
#[test]
fn issue_1231_bits_expect_fn_closure() {
use nom8::bits::{bits, take};
use nom8::error::Error;
pub fn example(input: &[u8]) -> IResult<&[u8], (u8, u8)> {
bits::<_, _, Error<_>, _, _>((take(1usize), take(1usize)))(input)
}
assert_eq!(example(&[0xff]), Ok((&b""[..], (1, 1))));
}
#[test]
fn issue_1282_findtoken_char() {
use nom8::bytes::one_of;
use nom8::error::Error;
let parser = one_of::<_, _, Error<_>, false>(&['a', 'b', 'c'][..]);
assert_eq!(parser("aaa"), Ok(("aa", 'a')));
}
#[test]
fn issue_1459_clamp_capacity() {
use nom8::multi::many_m_n;
let mut parser = many_m_n::<_, _, (), _>(usize::MAX, usize::MAX, 'a');
assert_eq!(parser("a"), Err(nom8::Err::Error(())));
use nom8::multi::count;
let mut parser = count::<_, _, (), _>('a', usize::MAX);
assert_eq!(parser("a"), Err(nom8::Err::Error(())));
}