line_cutter-macros

Procedural macro for deriving the PositionalEncoded trait from the line_cutter crate.

⚠️ Direct Usage Not Recommended

This crate provides the #[derive(PositionalText)] procedural macro. You should not add this crate as a direct dependency.

Instead, use the main line_cutter crate, which re-exports this derive macro:

[dependencies]
line_cutter = "1.0"

What This Macro Does

The PositionalText derive macro automatically implements the PositionalEncoded trait for structs with fixed-width positional text fields. It generates:

• decode() - Parse fixed-width strings into structured data
• encode() - Convert structured data back to fixed-width strings
• validate() - Validate field values before encoding

Example

use line_cutter::PositionalText;

#[derive(PositionalText)]
pub struct MyRecord {
    #[positional_field(start = 1, size = 10)]
    name: String,

    #[positional_field(start = 11, size = 8)]
    date: chrono::NaiveDate,
}

Documentation

For complete documentation, usage examples, and supported types, see the main line_cutter crate.

License

Licensed under either of:

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