DotGram 

Parsers for the formats of the web — JSON, JSON Pointer and Patch, HTTP header fields, URIs and URI Templates, email addresses, timestamps and language tags — written against their specifications and held to... More information

FIX 4.2, 4.4 and 5.0 SP2 tag-value parsing and validation: the wire read by a DotGram grammar, and each version's typed messages and checks generated from the FIX repository.

A C#-style expression language written in .gram, compiled straight into System.Linq.Expressions trees.

SQL parsers written in .gram: ISO SQL:2023, with a tree of the standard's own constructs, and SQL-92 and Microsoft's T-SQL, which build one tree of records between them.

Source generator that compiles .gram grammars into C# parsers.