spiegel-keyman/developer/docs/help/guides/lexical-models/advanced/index.md
Marc Durdin b751336c13 refactor(developer): copy dev 17.0 help into repo
1. Copy help.keyman.com/developer/17.0/* into /developer/docs/help
2. Update references to 18.0 where appropriate
3. Copy all referenced images from /cdn/dev into
   /developer/docs/help/images and update links in documentation

Next commit: add deployment to help-keyman-com.sh. Note: simplest way to
test links at this point is to use the help.keyman.com auto deploy and
wait for the PR on help.keyman.com to be validated; we could look at an
internal link validation tool that verifies markdown links?

Relates-to: #12347
2024-09-16 08:46:24 +07:00

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---
title: Advanced Lexical Models Topics
---
> For the following topics, **knowledge of TypeScript or JavaScript is
required**.
The Keyman lexical model engine is capable of much more sophisticated
lexical models than the one described in the [tutorial](../tutorial). To
make advanced models, you will need to modify the [model definition file](model-definition-file), also known as the [`.model.ts` file](../../../reference/file-types/model-ts).
Once you understand how to change the model.ts file, you can attempt
these customizations to an existing wordlist project:
[Changing the default punctuation](punctuation)
[Creating a custom search key function](search-term-to-key)
[Customizing the word breaker](word-breaker)