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LanguageTool for Emacs
Emacs Lisp Makefile
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README.md

langtool.el

Install:

Install LanguageTool (and java) http://www.languagetool.org/

Put this file into load-path'ed directory, and byte compile it if desired. And put the following expression into your ~/.emacs.

(require 'langtool)
(setq langtool-language-tool-jar "/path/to/languagetool-commandline.jar")

If you use old version of LanguageTool, may be:

(setq langtool-language-tool-jar "/path/to/LanguageTool.jar")

Alternatively, you can set the classpath where LanguageTool's jars reside:

(require 'langtool)
(setq langtool-java-classpath
      "/usr/share/languagetool:/usr/share/java/languagetool/*")

These settings are optional:

  • Key binding if you desired.
(global-set-key "\C-x4w" 'langtool-check)
(global-set-key "\C-x4W" 'langtool-check-done)
(global-set-key "\C-x4l" 'langtool-switch-default-language)
(global-set-key "\C-x44" 'langtool-show-message-at-point)
(global-set-key "\C-x4c" 'langtool-correct-buffer)
  • Default language is detected by LANG/LC_ALL environment variable. Please set langtool-default-language if you need to change default value.
(setq langtool-default-language "en-US")

Otherwise, invoke M-x langtool-check with C-u (universal-argument)

  • Currently GNU java version is not working. Please change the variable to your favorite java executable.
(setq langtool-java-bin "/path/to/java")
  • Maybe you want to specify your mother tongue.
(setq langtool-mother-tongue "en")

Usage:

  • To check current buffer and show warnings.
M-x langtool-check

Check with different language. You can complete supported language with C-i/TAB

C-u M-x langtool-check
  • To correct marker follow LanguageTool suggestions.
M-x langtool-correct-buffer
  • Go to warning point and
M-x langtool-show-message-at-point
  • To finish checking. All langtool marker is removed.
M-x langtool-check-done
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