README.md

# rusticata-macros

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<!-- cargo-sync-readme start -->

# Rusticata-macros

Helper macros for the [rusticata](https://github.com/rusticata) project.

This crate contains some additions to [nom](https://github.com/Geal/nom).

For example, the `error_if!` macro allows to test a condition and return an error from the parser if the condition
fails:

```rust
use rusticata_macros::error_if;
let r : IResult<&[u8],()> = do_parse!(
    s,
    l: be_u8 >>
    error_if!(l < 4, ErrorKind::Verify) >>
    data: take!(l - 4) >>
    (())
    );
```

See the documentation for more details and examples.

<!-- cargo-sync-readme end -->

## Nom versions

Different versions of this crate are available, depending on nom version.

- `rusticata-macros` 4.x depends on nom 7
- `rusticata-macros` 3.x depends on nom 6
- `rusticata-macros` 2.x depends on nom 5

## Documentation

Crate is documented, do running `cargo doc` will crate the offline documentation.

Reference documentation can be found [here](https://docs.rs/rusticata-macros/)

## Changes

### 4.0.0

- Upgrade to nom 7
  - Remove macros

### 3.0.1

- Add `be_var_u64` and `le_var_u64`

### 3.0.0

- Upgrade to nom 6

### 2.1.0

- Add common trait `Serialize` for structures serialization

### 2.0.4

- Add function version of most combinators

### 2.0.3

- Add macros `q` (quote) and `align32`

### 2.0.2

- Add `upgrade_error` and `upgrade_error_to`

### 2.0.1

- Add macro `custom_check`
- Add macro `flat_take`

### 2.0.0

- Upgrade to nom 5
- Debug types: use newtypes

### 1.1.0

- Add macro `newtype_enum`

### 1.0.0

- Upgrade to nom 4.0
  - Warning: this is a breaking change!
- Mark `parse_uint24` as deprecated

## License

Licensed under either of

 * Apache License, Version 2.0
   ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
 * MIT license
   ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)

at your option.

## Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.