- Added stdin support for XML encoding: V2GDecoder.exe -encode (reads XML from stdin)
- Added stdin support for hex decoding: V2GDecoder.exe -decode (reads hex string from stdin)
- Implemented hexStringToBinary() function for hex string to binary conversion
- Enhanced main() argument parsing to support stdin mode with filename "-"
- Updated help messages to show new pipe support options
- Cross-validated with original C program - 100% identical results for both encoding and decoding
- Enables pipeline usage: echo hex | V2GDecoder.exe -decode and type file.xml | V2GDecoder.exe -encode
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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