---
title: Tact Specification
description: "The Tact grammar used in its compiler is defined using the .peggy grammars, based on Parsing Expression Grammars (PEGs). PEGs provide a formal method for describing syntax, similar to regular expressions and context-free grammars."
pagefind: false  # hide the page from the search index
---

:::danger[Not implemented]
  This page is a stub and needs to be implemented as per [#76](https://github.com/tact-lang/tact-docs/issues/76).
:::
