63 lines
3.5 KiB
Markdown
63 lines
3.5 KiB
Markdown
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# LanguageTool
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[LanguageTool](https://languagetool.org/) is an open source online grammar, style and spell checker. Installing it is powered by the [etke.cc/roles/languagetool](https://gitlab.com/etke.cc/roles/languagetool) Ansible role and [Erikvl87/docker-languagetool](https://github.com/Erikvl87/docker-languagetool) docker image.
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## Dependencies
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This service requires the following other services:
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- [Traefik](traefik.md) - a reverse-proxy server
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## Configuration
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To enable this service, add the following configuration to your `vars.yml` file and re-run the [installation](../installing.md) process:
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```yaml
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########################################################################
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# #
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# languagetool #
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# #
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########################################################################
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languagetool_enabled: true
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languagetool_hostname: mash.example.com
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languagetool_path_prefix: /languagetool
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########################################################################
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# #
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# /languagetool #
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# #
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########################################################################
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```
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In the example configuration above, we configure the service to be hosted at `https://mash.example.com/languagetool`.
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You can remove the `languagetool_path_prefix` variable definition, to make it default to `/`, so that the service is served at `https://mash.example.com/`.
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### Enabling n-gram data
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LanguageTool can make use of large n-gram data sets to detect errors with words that are often confused, like *their* and *there*.
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Learn more in [Finding errors using n-gram data](https://dev.languagetool.org/finding-errors-using-n-gram-data).
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The **n-gram data set is huge and thus not part of the LanguageTool installation**. To make use of it with your own LanguageTool server, you may enable n-gram data and choose which languages to download n-gram data for.
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For a list of languages for which the Ansible role supports downloading n-gram data, consult the `languagetool_ngrams_langs` variable in [the `default/main.yml` file](https://gitlab.com/etke.cc/roles/languagetool/-/blob/main/defaults/main.yml). Additional languages may be available. If the role doesn't have a download URL for them, consider redefining `languagetool_ngrams_langs` yourself with your own language-code to download URL mapping or submit a PR to the [languagetool Ansible role](https://gitlab.com/etke.cc/roles/languagetool).
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```yaml
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languagetool_ngrams_enabled: true
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# See `languagetool_ngrams_langs` for a list of language-codes
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# that the Ansible role supports.
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languagetool_ngrams_langs_enabled: ['fr', 'en']
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```
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## Usage
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After [installing](../installing.md), you can test your instance by making requests to [LanguageTool's HTTP API](https://dev.languagetool.org/public-http-api).
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An example HTTP request can be made with [curl](https://curl.se/): `curl --data "language=en-US&text=a simple test" https://mash.example.com/languagetool/v2/check`
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See the list of [software that supports LanguageTool as an add-on](https://dev.languagetool.org/software-that-supports-languagetool-as-a-plug-in-or-add-on) and set `https://mash.example.com/languagetool/v2` as the LanguageTool server (assuming you've installed at the `/languagetool` path prefix).
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