Function hex_encode_mixed 

pub fn hex_encode_mixed(input: &str) -> String

Encodes text with mixed hexadecimal formats (0x, \x, %, &#x).

Randomly encodes each byte using one of four hex formats: C-style escape (\x), URL encoding (%), hex literal (0x), or HTML entity (&#x;). This format mixing can evade detection systems that pattern-match specific encoding styles.

Use Cases

• Red Team: Bypass detection with varied encoding formats
• XSS/SQLi Testing: Evade filters that only recognize one format
• Blue Team: Test encoder/decoder robustness across formats

Examples

use redstr::hex_encode_mixed;

let result = hex_encode_mixed("AB");
// Example output: "\x41%42" or "0x41B" (varies each run)
assert!(result.len() >= 2);

// Mixed format payload obfuscation
let payload = hex_encode_mixed("<script>");
// Example: "\x3c%73&#x63;0x72\x69%70&#x74;\x3e"