v0.4.0: Standard Rust Regex Syntax

🚀 Release v0.4.0: Standard Rust Regex Syntax

⚠️ BREAKING CHANGE

Removed the custom "regex:" prefix requirement for regex patterns. Patterns are now tried as regex first, falling back to literal string matching if regex compilation fails.

📝 Key Changes

• Cleaner API: Use standard Rust regex syntax without custom prefixes
• Smart fallback: Invalid regex patterns automatically fall back to literal matching
• Better alignment: Follows Rust ecosystem conventions
• Updated documentation: All examples, tests, and benchmarks updated
• Python bindings: Updated to match new behavior

🔄 Migration Guide

Before (v0.3.0):

let tools = JSONTools::new()
    .flatten()
    .key_replacement("regex:(User|Admin)_", "")
    .execute(data)?;

After (v0.4.0):

let tools = JSONTools::new()
    .flatten()
    .key_replacement("(User|Admin)_", "")
    .execute(data)?;

Simply remove the "regex:" prefix from all your regex patterns.

⚡ Performance Impact

Negligible (0-3% variation, mostly within noise threshold). Comprehensive benchmarks show no significant performance degradation.

📦 What's Included

• Rust crate: json-tools-rs v0.4.0
• Python wheels for multiple platforms (Linux, Windows, macOS)
• Source distribution (sdist)

🔗 Links

• Commit
• Documentation
• Changelog