Open source at Voxgig

tabnas

An extensible parsing engine, and a compile target for agents.

What it is#

Parser generators produce code, and code you extend by forking. tabnas compiles a grammar into a rule table instead: a state machine as data. To extend a language you add rules to the table, and because the rules are data, an agent can write them as easily as a person can.

One grammar file drives both implementations, TypeScript and Go, so a format parses the same way in both. It ships parsers for JSON, YAML, TOML, CSV, INI, XML, Markdown, CSS, C and Protocol Buffers among others, and it compiles RFC 5234 ABNF, the grammar notation the internet's own standards are written in, straight into a working parser.

It started as jsonic, an attempt at a more forgiving JSON parser, and became an extensible one along the way. Today it is the parser under the rest of the Voxgig toolchain: apidef reads OpenAPI through it, and aontu is built on it.

Install: npm install @tabnas/parser @tabnas/abnf

The other sections#

  • SDK GeneratorSix surfaces from one OpenAPI description.
  • SDK Catalog600+ generated SDKs, as repositories you can read.
  • aontuType-safe system definitions, as guardrails for coding agents.
  • jostracaA code generator you can run twice.
  • SenecaA microservices toolkit for Node.js.
  • Voxgig toolsThe libraries inside every generated SDK, ported to every language the SDKs ship in.

Start with the code#

Every repository is public. Read it, fork it, or send a pull request. When a project needs to go further than its README, talk to us.

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