Arcjet’s Post

Implementing request parsers in Rust allows us to take advantage of its inherent memory safety, correctness, and performance. That's why we used Nom to build our email validation. Nom is a parser combinator library written in Rust designed as toolchain for building "safe parsers without compromising the speed or memory consumption". Its design focuses on zero-copy parsing (memory-efficient data interpretation without allocations), using Rust's streaming capabilities, and bit-level parsing support. This makes it highly efficient and versatile. Creating an email parser requires combining local part parsing with domain parsing to ensure we validate the syntax against the RFCs...but of course just following the RFC doesn't quite work in the real world!

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