This package includes GPPG 1.5.3 and GPLEX 1.2.3 tools for compiling YACC and LEX source files in your C# project.
$ dotnet add package YaccLexTools
Lex and Yacc are useful tools that you would use if you want to create a compiler, a transpiler or you just want to interpret a formal language.

YaccLexTools is focused on C#. Other tools are available for other programming languages like C/C++, F#, Java, etc.
YaccLexTools translantes Yacc and Lex files in C# code thanks to the tools GPPG and GPLEX and simplify the use of these tools in the C# projects building process.
Read my blog post for more details:
https://devnotes.ernstc.net/yacclextools
Nuget package: https://www.nuget.org/packages/YaccLexTools/