GoKawiilNew open-source LALR(1) parser generator Yantra released for C++23
Yantra is a newly released compiler-compiler and LALR(1) parser generator written in C++, shared on Hacker News as a Show HN project. It bundles an integrated Unicode-aware lexer, AST builder and walker, supports both amalgamated single-file and split header/source output, and generates parsers compiled with C++23 toolchains like clang, gcc or MSVC.
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Parser generator tools like this lower the barrier for developers building domain-specific languages or custom file-format parsers in C++, especially by bundling lexing, AST construction and traversal in one tool rather than requiring separate libraries. Its push-based, lexer-driven parsing mode could make it useful for streaming inputs such as sockets, though real-world adoption will depend on documentation, performance and community uptake.
- Yantra is a new LALR(1) parser generator for C++ with an integrated Unicode-capable lexer.
- It supports amalgamated single-file output or separate .hpp/.cpp files for integration into existing projects.
- Generated parsers require a C++23 compiler such as clang, gcc, or MSVC.
Source: github.com, 2026-10-01
Published there as: “Show HN: Yantra – an LALR(1) parser generator for C++”
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