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HFST

v0.0.1 · by Aboobacker MK · added 3 November 2026

HFST language support for Zed: TWOL (Two-Level Morphology) and LEXC (Lexicon Compiler)

Languages

How to install

With Forge Super installed, the button above opens the app on this extension, where you press Install. Nothing is installed until you do.

You can also open the Extensions panel in the app and search for HFST. The extension's id is hfst.

Don't have Forge Super yet? Download it here.

README

From the extension's repository, written by its authors and not by Mentenaz. See the source.

HFST for Zed

Zed extension providing syntax highlighting for HFST (Helsinki Finite-State Toolkit) language files:

  • TWOL (.twol) — Two-Level Morphology rules
  • LEXC (.lexc) — Lexicon Compiler format

Features

Installation

Search for HFST in the Zed Extensions marketplace, or install via the command palette:

zed: extensions

TWOL Highlighting

Highlights section keywords (Alphabet, Sets, Definitions, Rules), rule operators (=>, <=, <=>), symbol pairs (a:b), wildcards, epsilon (0), word boundary (.#.), set and definition names, regex operators, and comments.

LEXC Highlighting

Highlights section keywords (LEXICON, Multichar_Symbols), lexicon names, continuation references, entry forms (upper:lower), multichar symbols, and comments.

License

MIT