From 837b550238aa671a591ccf282dddeab29cadb206 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 04:49:42 +0200 Subject: Merging upstream version 1.71.1+dfsg1. Signed-off-by: Daniel Baumann --- vendor/winnow/src/number/mod.rs | 2388 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 2388 insertions(+) create mode 100644 vendor/winnow/src/number/mod.rs (limited to 'vendor/winnow/src/number/mod.rs') diff --git a/vendor/winnow/src/number/mod.rs b/vendor/winnow/src/number/mod.rs new file mode 100644 index 000000000..1554ac729 --- /dev/null +++ b/vendor/winnow/src/number/mod.rs @@ -0,0 +1,2388 @@ +//! Parsers recognizing numbers + +#![allow(clippy::match_same_arms)] + +#[cfg(test)] +mod tests; + +use crate::bytes::take; +use crate::error::ErrMode; +use crate::error::ErrorKind; +use crate::error::Needed; +use crate::error::ParseError; +use crate::lib::std::ops::{Add, Shl}; +use crate::stream::{AsBytes, Stream, StreamIsPartial}; +use crate::trace::trace; +use crate::IResult; +use crate::Parser; + +/// Configurable endianness +#[derive(Debug, PartialEq, Eq, Clone, Copy)] +pub enum Endianness { + /// Big endian + Big, + /// Little endian + Little, + /// Will match the host's endianness + Native, +} + +/// Recognizes an unsigned 1 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u8> { +/// be_u8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u8> { +/// be_u8.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn be_u8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + u8(input) +} + +/// Recognizes a big endian unsigned 2 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u16; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u16> { +/// be_u16.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u16; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u16> { +/// be_u16.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0001))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn be_u16>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_u16", move |input: I| be_uint(input, 2)).parse_next(input) +} + +/// Recognizes a big endian unsigned 3 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u24; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u32> { +/// be_u24.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x000305))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u24; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u32> { +/// be_u24.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x000102))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn be_u24>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_u23", move |input: I| be_uint(input, 3)).parse_next(input) +} + +/// Recognizes a big endian unsigned 4 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u32> { +/// be_u32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00030507))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u32> { +/// be_u32.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x00010203))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn be_u32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_u32", move |input: I| be_uint(input, 4)).parse_next(input) +} + +/// Recognizes a big endian unsigned 8 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u64> { +/// be_u64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0001020304050607))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u64> { +/// be_u64.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0001020304050607))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn be_u64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_u64", move |input: I| be_uint(input, 8)).parse_next(input) +} + +/// Recognizes a big endian unsigned 16 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_u128; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u128> { +/// be_u128.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00010203040506070001020304050607))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_u128; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u128> { +/// be_u128.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x00010203040506070809101112131415))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn be_u128>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_u128", move |input: I| be_uint(input, 16)).parse_next(input) +} + +#[inline] +fn be_uint>(input: I, bound: usize) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, + Uint: Default + Shl + Add + From, +{ + debug_assert_ne!(bound, 1, "to_be_uint needs extra work to avoid overflow"); + take(bound) + .map(|n: ::Slice| to_be_uint(n.as_bytes())) + .parse_next(input) +} + +#[inline] +fn to_be_uint(number: &[u8]) -> Uint +where + Uint: Default + Shl + Add + From, +{ + let mut res = Uint::default(); + for byte in number.iter().copied() { + res = (res << 8) + byte.into(); + } + + res +} + +/// Recognizes a signed 1 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i8> { +/// be_i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i8> { +/// be_i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn be_i8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + i8(input) +} + +/// Recognizes a big endian signed 2 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i16; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i16> { +/// be_i16.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i16; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i16> { +/// be_i16.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0001))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn be_i16>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_i16", move |input: I| { + be_uint::<_, u16, _>(input, 2).map(|(i, n)| (i, n as i16)) + }) + .parse_next(input) +} + +/// Recognizes a big endian signed 3 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i24; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i32> { +/// be_i24.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x000305))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i24; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i32> { +/// be_i24.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x000102))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn be_i24>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_i24", move |input: I| { + be_uint::<_, u32, _>(input, 3).map(|(i, n)| { + // Same as the unsigned version but we need to sign-extend manually here + let n = if n & 0x80_00_00 != 0 { + (n | 0xff_00_00_00) as i32 + } else { + n as i32 + }; + (i, n) + }) + }) + .parse_next(input) +} + +/// Recognizes a big endian signed 4 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i32> { +/// be_i32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00030507))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i32> { +/// be_i32.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x00010203))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(4)))); +/// ``` +#[inline(always)] +pub fn be_i32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_i32", move |input: I| { + be_uint::<_, u32, _>(input, 4).map(|(i, n)| (i, n as i32)) + }) + .parse_next(input) +} + +/// Recognizes a big endian signed 8 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i64> { +/// be_i64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0001020304050607))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i64> { +/// be_i64.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0001020304050607))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn be_i64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_i64", move |input: I| { + be_uint::<_, u64, _>(input, 8).map(|(i, n)| (i, n as i64)) + }) + .parse_next(input) +} + +/// Recognizes a big endian signed 16 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_i128; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i128> { +/// be_i128.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00010203040506070001020304050607))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_i128; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i128> { +/// be_i128.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x00010203040506070809101112131415))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn be_i128>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_i128", move |input: I| { + be_uint::<_, u128, _>(input, 16).map(|(i, n)| (i, n as i128)) + }) + .parse_next(input) +} + +/// Recognizes an unsigned 1 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u8> { +/// le_u8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u8> { +/// le_u8.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn le_u8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + u8(input) +} + +/// Recognizes a little endian unsigned 2 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u16; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u16> { +/// le_u16.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u16; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u16> { +/// le_u16::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn le_u16>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_u16", move |input: I| le_uint(input, 2)).parse_next(input) +} + +/// Recognizes a little endian unsigned 3 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u24; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u32> { +/// le_u24.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x050300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u24; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u32> { +/// le_u24::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn le_u24>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_u24", move |input: I| le_uint(input, 3)).parse_next(input) +} + +/// Recognizes a little endian unsigned 4 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u32> { +/// le_u32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07050300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u32> { +/// le_u32::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x03020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn le_u32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_u32", move |input: I| le_uint(input, 4)).parse_next(input) +} + +/// Recognizes a little endian unsigned 8 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u64> { +/// le_u64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0706050403020100))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u64> { +/// le_u64::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0706050403020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn le_u64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_u64", move |input: I| le_uint(input, 8)).parse_next(input) +} + +/// Recognizes a little endian unsigned 16 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_u128; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u128> { +/// le_u128.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07060504030201000706050403020100))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_u128; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u128> { +/// le_u128::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x15141312111009080706050403020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn le_u128>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_u128", move |input: I| le_uint(input, 16)).parse_next(input) +} + +#[inline] +fn le_uint>(input: I, bound: usize) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, + Uint: Default + Shl + Add + From, +{ + take(bound) + .map(|n: ::Slice| to_le_uint(n.as_bytes())) + .parse_next(input) +} + +#[inline] +fn to_le_uint(number: &[u8]) -> Uint +where + Uint: Default + Shl + Add + From, +{ + let mut res = Uint::default(); + for (index, byte) in number.iter_offsets() { + res = res + (Uint::from(byte) << (8 * index as u8)); + } + + res +} + +/// Recognizes a signed 1 byte integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i8> { +/// le_i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i8> { +/// le_i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn le_i8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + i8(input) +} + +/// Recognizes a little endian signed 2 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i16; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i16> { +/// le_i16.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i16; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i16> { +/// le_i16::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn le_i16>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_i16", move |input: I| { + le_uint::<_, u16, _>(input, 2).map(|(i, n)| (i, n as i16)) + }) + .parse_next(input) +} + +/// Recognizes a little endian signed 3 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i24; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i32> { +/// le_i24.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x050300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i24; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i32> { +/// le_i24::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn le_i24>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_i24", move |input: I| { + le_uint::<_, u32, _>(input, 3).map(|(i, n)| { + // Same as the unsigned version but we need to sign-extend manually here + let n = if n & 0x80_00_00 != 0 { + (n | 0xff_00_00_00) as i32 + } else { + n as i32 + }; + (i, n) + }) + }) + .parse_next(input) +} + +/// Recognizes a little endian signed 4 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i32> { +/// le_i32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07050300))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i32> { +/// le_i32::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x03020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn le_i32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_i32", move |input: I| { + le_uint::<_, u32, _>(input, 4).map(|(i, n)| (i, n as i32)) + }) + .parse_next(input) +} + +/// Recognizes a little endian signed 8 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i64> { +/// le_i64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0706050403020100))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i64> { +/// le_i64::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0706050403020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn le_i64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_i64", move |input: I| { + le_uint::<_, u64, _>(input, 8).map(|(i, n)| (i, n as i64)) + }) + .parse_next(input) +} + +/// Recognizes a little endian signed 16 bytes integer. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_i128; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i128> { +/// le_i128.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07060504030201000706050403020100))); +/// assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_i128; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i128> { +/// le_i128::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x15141312111009080706050403020100))); +/// assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn le_i128>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_i128", move |input: I| { + le_uint::<_, u128, _>(input, 16).map(|(i, n)| (i, n as i128)) + }) + .parse_next(input) +} + +/// Recognizes an unsigned 1 byte integer +/// +/// **Note:** that endianness does not apply to 1 byte numbers. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], u8> { +/// u8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, u8> { +/// u8::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"\x03abcefg"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn u8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + trace("u8", move |input: I| { + if input.is_partial() { + streaming_u8(input) + } else { + complete_u8(input) + } + }) + .parse_next(input) +} + +#[inline] +pub(crate) fn streaming_u8>(input: I) -> IResult +where + I: Stream, +{ + input + .next_token() + .ok_or_else(|| ErrMode::Incomplete(Needed::new(1))) +} + +pub(crate) fn complete_u8>(input: I) -> IResult +where + I: Stream, +{ + input + .next_token() + .ok_or_else(|| ErrMode::Backtrack(E::from_error_kind(input, ErrorKind::Token))) +} + +/// Recognizes an unsigned 2 bytes integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian u16 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian u16 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u16; +/// +/// let be_u16 = |s| { +/// u16(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003))); +/// assert_eq!(be_u16(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_u16 = |s| { +/// u16(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300))); +/// assert_eq!(le_u16(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u16; +/// +/// let be_u16 = |s| { +/// u16::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u16(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0003))); +/// assert_eq!(be_u16(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// +/// let le_u16 = |s| { +/// u16::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u16(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0300))); +/// assert_eq!(le_u16(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn u16>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_u16, + crate::number::Endianness::Little => le_u16, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_u16, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_u16, + } + }(input) +} + +/// Recognizes an unsigned 3 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian u24 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian u24 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u24; +/// +/// let be_u24 = |s| { +/// u24(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u24(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x000305))); +/// assert_eq!(be_u24(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_u24 = |s| { +/// u24(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u24(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x050300))); +/// assert_eq!(le_u24(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u24; +/// +/// let be_u24 = |s| { +/// u24::<_,Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u24(Partial::new(&b"\x00\x03\x05abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x000305))); +/// assert_eq!(be_u24(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// +/// let le_u24 = |s| { +/// u24::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u24(Partial::new(&b"\x00\x03\x05abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x050300))); +/// assert_eq!(le_u24(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn u24>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_u24, + crate::number::Endianness::Little => le_u24, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_u24, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_u24, + } + }(input) +} + +/// Recognizes an unsigned 4 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian u32 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian u32 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u32; +/// +/// let be_u32 = |s| { +/// u32(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u32(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00030507))); +/// assert_eq!(be_u32(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_u32 = |s| { +/// u32(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u32(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07050300))); +/// assert_eq!(le_u32(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u32; +/// +/// let be_u32 = |s| { +/// u32::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u32(Partial::new(&b"\x00\x03\x05\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x00030507))); +/// assert_eq!(be_u32(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// +/// let le_u32 = |s| { +/// u32::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u32(Partial::new(&b"\x00\x03\x05\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x07050300))); +/// assert_eq!(le_u32(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn u32>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_u32, + crate::number::Endianness::Little => le_u32, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_u32, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_u32, + } + }(input) +} + +/// Recognizes an unsigned 8 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian u64 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian u64 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u64; +/// +/// let be_u64 = |s| { +/// u64(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u64(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0001020304050607))); +/// assert_eq!(be_u64(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_u64 = |s| { +/// u64(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u64(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0706050403020100))); +/// assert_eq!(le_u64(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u64; +/// +/// let be_u64 = |s| { +/// u64::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u64(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0001020304050607))); +/// assert_eq!(be_u64(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// +/// let le_u64 = |s| { +/// u64::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u64(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0706050403020100))); +/// assert_eq!(le_u64(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn u64>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_u64, + crate::number::Endianness::Little => le_u64, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_u64, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_u64, + } + }(input) +} + +/// Recognizes an unsigned 16 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian u128 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian u128 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::u128; +/// +/// let be_u128 = |s| { +/// u128(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u128(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00010203040506070001020304050607))); +/// assert_eq!(be_u128(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_u128 = |s| { +/// u128(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u128(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07060504030201000706050403020100))); +/// assert_eq!(le_u128(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::u128; +/// +/// let be_u128 = |s| { +/// u128::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_u128(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x00010203040506070001020304050607))); +/// assert_eq!(be_u128(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// +/// let le_u128 = |s| { +/// u128::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_u128(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x07060504030201000706050403020100))); +/// assert_eq!(le_u128(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn u128>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_u128, + crate::number::Endianness::Little => le_u128, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_u128, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_u128, + } + }(input) +} + +/// Recognizes a signed 1 byte integer +/// +/// **Note:** that endianness does not apply to 1 byte numbers. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i8; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], i8> { +/// i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00))); +/// assert_eq!(parser(&b""[..]), Err(ErrMode::Backtrack(Error::new(&[][..], ErrorKind::Token)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i8; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, i8> { +/// i8.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"\x03abcefg"[..]), 0x00))); +/// assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn i8>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, +{ + trace("i8", move |input: I| { + if input.is_partial() { + streaming_u8(input) + } else { + complete_u8(input) + } + .map(|(i, n)| (i, n as i8)) + }) + .parse_next(input) +} + +/// Recognizes a signed 2 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian i16 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian i16 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i16; +/// +/// let be_i16 = |s| { +/// i16(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003))); +/// assert_eq!(be_i16(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_i16 = |s| { +/// i16(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300))); +/// assert_eq!(le_i16(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i16; +/// +/// let be_i16 = |s| { +/// i16::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i16(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0003))); +/// assert_eq!(be_i16(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// +/// let le_i16 = |s| { +/// i16::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i16(Partial::new(&b"\x00\x03abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0300))); +/// assert_eq!(le_i16(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn i16>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_i16, + crate::number::Endianness::Little => le_i16, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_i16, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_i16, + } + }(input) +} + +/// Recognizes a signed 3 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian i24 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian i24 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i24; +/// +/// let be_i24 = |s| { +/// i24(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i24(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x000305))); +/// assert_eq!(be_i24(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_i24 = |s| { +/// i24(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i24(&b"\x00\x03\x05abcefg"[..]), Ok((&b"abcefg"[..], 0x050300))); +/// assert_eq!(le_i24(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i24; +/// +/// let be_i24 = |s| { +/// i24::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i24(Partial::new(&b"\x00\x03\x05abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x000305))); +/// assert_eq!(be_i24(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// +/// let le_i24 = |s| { +/// i24::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i24(Partial::new(&b"\x00\x03\x05abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x050300))); +/// assert_eq!(le_i24(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(2)))); +/// ``` +#[inline(always)] +pub fn i24>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_i24, + crate::number::Endianness::Little => le_i24, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_i24, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_i24, + } + }(input) +} + +/// Recognizes a signed 4 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian i32 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian i32 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i32; +/// +/// let be_i32 = |s| { +/// i32(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i32(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00030507))); +/// assert_eq!(be_i32(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_i32 = |s| { +/// i32(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i32(&b"\x00\x03\x05\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07050300))); +/// assert_eq!(le_i32(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i32; +/// +/// let be_i32 = |s| { +/// i32::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i32(Partial::new(&b"\x00\x03\x05\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x00030507))); +/// assert_eq!(be_i32(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// +/// let le_i32 = |s| { +/// i32::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i32(Partial::new(&b"\x00\x03\x05\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x07050300))); +/// assert_eq!(le_i32(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn i32>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_i32, + crate::number::Endianness::Little => le_i32, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_i32, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_i32, + } + }(input) +} + +/// Recognizes a signed 8 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian i64 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian i64 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i64; +/// +/// let be_i64 = |s| { +/// i64(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i64(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0001020304050607))); +/// assert_eq!(be_i64(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_i64 = |s| { +/// i64(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i64(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x0706050403020100))); +/// assert_eq!(le_i64(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i64; +/// +/// let be_i64 = |s| { +/// i64::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i64(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0001020304050607))); +/// assert_eq!(be_i64(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// +/// let le_i64 = |s| { +/// i64::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i64(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x0706050403020100))); +/// assert_eq!(le_i64(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn i64>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_i64, + crate::number::Endianness::Little => le_i64, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_i64, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_i64, + } + }(input) +} + +/// Recognizes a signed 16 byte integer +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian i128 integer, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian i128 integer. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::i128; +/// +/// let be_i128 = |s| { +/// i128(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i128(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x00010203040506070001020304050607))); +/// assert_eq!(be_i128(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// +/// let le_i128 = |s| { +/// i128(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i128(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..]), Ok((&b"abcefg"[..], 0x07060504030201000706050403020100))); +/// assert_eq!(le_i128(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::i128; +/// +/// let be_i128 = |s| { +/// i128::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_i128(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x00010203040506070001020304050607))); +/// assert_eq!(be_i128(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// +/// let le_i128 = |s| { +/// i128::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_i128(Partial::new(&b"\x00\x01\x02\x03\x04\x05\x06\x07\x00\x01\x02\x03\x04\x05\x06\x07abcefg"[..])), Ok((Partial::new(&b"abcefg"[..]), 0x07060504030201000706050403020100))); +/// assert_eq!(le_i128(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(15)))); +/// ``` +#[inline(always)] +pub fn i128>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_i128, + crate::number::Endianness::Little => le_i128, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_i128, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_i128, + } + }(input) +} + +/// Recognizes a big endian 4 bytes floating point number. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_f32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], f32> { +/// be_f32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&[0x41, 0x48, 0x00, 0x00][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_f32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, f32> { +/// be_f32.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&[0x40, 0x29, 0x00, 0x00][..])), Ok((Partial::new(&b""[..]), 2.640625))); +/// assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn be_f32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_f32", move |input: I| { + be_uint::<_, u32, _>(input, 4).map(|(i, n)| (i, f32::from_bits(n))) + }) + .parse_next(input) +} + +/// Recognizes a big endian 8 bytes floating point number. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::be_f64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], f64> { +/// be_f64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::be_f64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, f64> { +/// be_f64::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn be_f64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_f64", move |input: I| { + be_uint::<_, u64, _>(input, 8).map(|(i, n)| (i, f64::from_bits(n))) + }) + .parse_next(input) +} + +/// Recognizes a little endian 4 bytes floating point number. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_f32; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], f32> { +/// le_f32.parse_next(s) +/// } +/// +/// assert_eq!(parser(&[0x00, 0x00, 0x48, 0x41][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_f32; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, f32> { +/// le_f32::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&[0x00, 0x00, 0x48, 0x41][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(3)))); +/// ``` +#[inline(always)] +pub fn le_f32>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("le_f32", move |input: I| { + le_uint::<_, u32, _>(input, 4).map(|(i, n)| (i, f32::from_bits(n))) + }) + .parse_next(input) +} + +/// Recognizes a little endian 8 bytes floating point number. +/// +/// *Complete version*: Returns an error if there is not enough input data. +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::le_f64; +/// +/// fn parser(s: &[u8]) -> IResult<&[u8], f64> { +/// le_f64.parse_next(s) +/// } +/// +/// assert_eq!(parser(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::Partial; +/// use winnow::number::le_f64; +/// +/// fn parser(s: Partial<&[u8]>) -> IResult, f64> { +/// le_f64::<_, Error<_>>.parse_next(s) +/// } +/// +/// assert_eq!(parser(Partial::new(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x41][..])), Ok((Partial::new(&b""[..]), 3145728.0))); +/// assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(7)))); +/// ``` +#[inline(always)] +pub fn le_f64>(input: I) -> IResult +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + trace("be_f64", move |input: I| { + le_uint::<_, u64, _>(input, 8).map(|(i, n)| (i, f64::from_bits(n))) + }) + .parse_next(input) +} + +/// Recognizes a 4 byte floating point number +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian f32 float, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian f32 float. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::f32; +/// +/// let be_f32 = |s| { +/// f32(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_f32(&[0x41, 0x48, 0x00, 0x00][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(be_f32(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// +/// let le_f32 = |s| { +/// f32(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_f32(&[0x00, 0x00, 0x48, 0x41][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(le_f32(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::f32; +/// +/// let be_f32 = |s| { +/// f32::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_f32(Partial::new(&[0x41, 0x48, 0x00, 0x00][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(be_f32(Partial::new(&b"abc"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// +/// let le_f32 = |s| { +/// f32::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_f32(Partial::new(&[0x00, 0x00, 0x48, 0x41][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(le_f32(Partial::new(&b"abc"[..])), Err(ErrMode::Incomplete(Needed::new(1)))); +/// ``` +#[inline(always)] +pub fn f32>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_f32, + crate::number::Endianness::Little => le_f32, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_f32, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_f32, + } + }(input) +} + +/// Recognizes an 8 byte floating point number +/// +/// If the parameter is `winnow::number::Endianness::Big`, parse a big endian f64 float, +/// otherwise if `winnow::number::Endianness::Little` parse a little endian f64 float. +/// +/// *Complete version*: returns an error if there is not enough input data +/// +/// *Partial version*: Will return `Err(winnow::error::ErrMode::Incomplete(_))` if there is not enough data. +/// +/// # Example +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// use winnow::number::f64; +/// +/// let be_f64 = |s| { +/// f64(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_f64(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(be_f64(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// +/// let le_f64 = |s| { +/// f64(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_f64(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..]), Ok((&b""[..], 12.5))); +/// assert_eq!(le_f64(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Slice)))); +/// ``` +/// +/// ```rust +/// # use winnow::{error::ErrMode, error::ErrorKind, error::Error, error::Needed}; +/// # use winnow::prelude::*; +/// # use winnow::error::Needed::Size; +/// # use winnow::Partial; +/// use winnow::number::f64; +/// +/// let be_f64 = |s| { +/// f64::<_, Error<_>>(winnow::number::Endianness::Big).parse_next(s) +/// }; +/// +/// assert_eq!(be_f64(Partial::new(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(be_f64(Partial::new(&b"abc"[..])), Err(ErrMode::Incomplete(Needed::new(5)))); +/// +/// let le_f64 = |s| { +/// f64::<_, Error<_>>(winnow::number::Endianness::Little).parse_next(s) +/// }; +/// +/// assert_eq!(le_f64(Partial::new(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..])), Ok((Partial::new(&b""[..]), 12.5))); +/// assert_eq!(le_f64(Partial::new(&b"abc"[..])), Err(ErrMode::Incomplete(Needed::new(5)))); +/// ``` +#[inline(always)] +pub fn f64>(endian: crate::number::Endianness) -> impl Parser +where + I: StreamIsPartial, + I: Stream, + ::Slice: AsBytes, +{ + move |input: I| { + match endian { + crate::number::Endianness::Big => be_f64, + crate::number::Endianness::Little => le_f64, + #[cfg(target_endian = "big")] + crate::number::Endianness::Native => be_f64, + #[cfg(target_endian = "little")] + crate::number::Endianness::Native => le_f64, + } + }(input) +} -- cgit v1.2.3