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spacemacs/layers/+tools/languagetool/README.org

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#+TITLE: LanguageTool layer
#+TAGS: layer|uncategorized
[[file:img/languagetool.png]]
* Table of Contents :TOC_5_gh:noexport:
- [[#description][Description]]
- [[#features][Features:]]
- [[#install][Install]]
- [[#layer][Layer]]
- [[#languagetool][LanguageTool]]
- [[#key-bindings][Key bindings]]
* Description
This layer adds grammar checking using [[https://www.languagetool.org/][LanguageTool]]. LanguageTool will use the
language set using ~SPC S d~ if the =spell-checking= layer is enabled.
** Features:
- Spelling and grammar checking
* Install
** Layer
To use this configuration layer, add it to your =~/.spacemacs=. You will need to
add =languagetool= to the existing =dotspacemacs-configuration-layers= list in
this file. You can set the default language by setting
~langtool-default-language~. This value will be used when no custom language has
been set using ~SPC S d~:
#+BEGIN_SRC elisp
(setq-default dotspacemacs-configuration-layers
'((languagetool :variables
langtool-default-language "en-GB")))
#+END_SRC
It's also possible to immediately show the error when jumping to errors with ~[
a~ and ~] a~ by setting ~languagetool-show-error-on-jump~:
#+BEGIN_SRC elisp
(setq-default dotspacemacs-configuration-layers
'((languagetool :variables
languagetool-show-error-on-jump t)))
#+END_SRC
** LanguageTool
LanguageTool and JRE 8+ are required to use this layer. You can install
LanguageTool using your system's package manager or by extracting the standalone
archive found on [[https://www.languagetool.org/][LanguageTool's website]]. You can tell the layer where
LanguageTool is installed by setting the =langtool-language-tool-jar= variable
to the location of =languagetool-commandline.jar=, by setting
=langtool-java-classpath=, or setting a host and port for a running server:
#+BEGIN_SRC elisp
;; Standalone installation
(setq-default dotspacemacs-configuration-layers
'((languagetool :variables
langtool-language-tool-jar "/home/username/languagetool/languagetool-commandline.jar")))
;; Classpath (e.g. after installing with `pacman -S languagetool')
(setq-default dotspacemacs-configuration-layers
'((languagetool :variables
langtool-java-classpath "/usr/share/languagetool:/usr/share/java/languagetool/*")))
;; Server running in background
(setq-default dotspacemacs-configuration-layers
'((languagetool :variables
langtool-http-server-host "localhost"
langtool-http-server-port 8081)))
#+END_SRC
* Key bindings
| Key binding | Description |
|-------------+--------------------------------------------|
| ~SPC S l~ | Toggle LanguageTool for the current buffer |
| ~SPC S L~ | Perform corrections in the current buffer |
| ~[ a~ | Jump to the previous LanguageTool error |
| ~] a~ | Jump to the next LanguageTool error |