We're building a CSV parser. This isn't just about splitting lines by commas; we need a robust, flexible solution capable of handling various CSV dialects (different delimiters, quote characters, escape characters), complex data types, and error conditions gracefully. Imagine processing massive financial datasets, user profiles from various systems, or even scientific measurement logs – each with its own quirky CSV format. Our parser needs to be adaptable and reliable.

The core challenge lies in designing a system that can easily accommodate new CSV formats without requiring significant code changes. We need to consider different parsing strategies, data validation rules, and error handling mechanisms. Furthermore, the system needs to be performant and thread-safe, especially when dealing with large files.

Requirements