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BSWP

Rust 字节交换库。

使用模式和掩码进行字节交换。

最低支持的 Rust 版本 (MSRV)

bswp 需要 Rust 1.40.0.

使用方法

迭代器

use bswp::pattern::{Pattern, Predicate, swap_iter};

let pattern = Pattern::new(0x42).with_mask(0xFF); // replace byte by 0x42
let predicate = Predicate::new().with_periodicity(2).with_offset(1); // replace odd bytes
let swaps = &[(pattern, predicate)];

let source: [u8; 4] = [0x41, 0x41, 0x41, 0x41];
let swapped = swap_iter(&source, swaps); // iterator on result
let swapped: Vec<u8> = swapped.collect();
assert_eq!(swapped, vec!(0x41, 0x42, 0x41, 0x42));

可变文件数据

use std::io::Cursor;
use bswp::pattern::{Pattern, Predicate};
use bswp::io::swap_io;

// in memory reader (implements `Read`)
let mut reader: Cursor<Vec<u8>> = Cursor::new(vec![0x41, 0x42, 0x43, 0x44]);
// in memory writer (implements `Write`)
let mut writer: Cursor<Vec<u8>> = Cursor::new(Vec::new());

let swaps: &[(Pattern, Predicate)] = &[(Pattern::new(0x42).with_mask(0xFF), Predicate::new().with_periodicity(2).with_offset(0))];
let swap = swap_io(&mut reader, &mut writer, swaps);
assert!(swap.is_ok());
assert_eq!(swap.unwrap(), 4); // 4 bytes written
assert_eq!(writer.into_inner(), vec![0x42, 0x42, 0x42, 0x44])

变更日志

请参阅 CHANGELOG 以获取发布历史。