Replace :app write with :checkers grammar

modules/checkers/grammar/README.org

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+#+TITLE:   checkers/grammar
+#+DATE:    January 9, 2020
+#+SINCE:   v3.0.0
+#+STARTUP: inlineimages nofold
+
+* Table of Contents :TOC_3:noexport:
+- [[#description][Description]]
+  - [[#maintainers][Maintainers]]
+  - [[#module-flags][Module Flags]]
+  - [[#plugins][Plugins]]
+- [[#prerequisites][Prerequisites]]
+- [[#features][Features]]
+  - [[#language-tool][Language Tool]]
+    - [[#commands][Commands]]
+  - [[#writegood-mode][writegood-mode]]
+- [[#configuration][Configuration]]
+- [[#troubleshooting][Troubleshooting]]
+
+* Description
+This module adds grammar checking to Emacs to aid your writing by combining
+=lang-tool= and =writegood-mode=.
+
+** Maintainers
+This module has no dedicated maintainers.
+
+** Module Flags
+This module provides no flags.
+
+** Plugins
++ [[https://github.com/mhayashi1120/Emacs-langtool][langtool]]
++ [[https://github.com/bnbeckwith/writegood-mode][writegood-mode]]
+
+* Prerequisites
+This module requires langtool (which requires =Java 1.8+=).
+
+It can be acquired either from https://languagetool.org/ or your OS's package
+manager:
+
++ macOS: ~brew install languagetool~
++ Arch Linux: ~pacman -S languagetool~
+
+This module tries to guess the location of languagetool-commandline.jar. If you
+get a warning that Doom =couldn't find languagetool-commandline.jar=, you will
+need to set ~langtool-language-tool-jar~ to its location.
+
+* Features
+An in-depth list of features, how to use them, and their dependencies.
+
+** Language Tool
+[[https://www.languagetool.org/][Language Tool]] is a polyglot proofreader service that checks for grammar and
+stylistic issues in your writing. This requires Java 1.8+.
+
+#+begin_quote
+This requires Java 1.8+
+#+end_quote
+
+*** Commands
+- ~langtool-check~
+- ~langtool-correct-buffer~
+
+** writegood-mode
+This minor mode highlights weasel words, duplication and passive voice.
+
+* Configuration
+How to configure this module, including common problems and how to address them.
+
+* Troubleshooting
+Common issues and their solution, or places to look for help.

modules/checkers/grammar/config.el

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+;;; checkers/grammar/config.el -*- lexical-binding: t; -*-
+
+(use-package! langtool
+  :commands (langtool-check
+             langtool-check-done
+             langtool-show-message-at-point
+             langtool-correct-buffer)
+  :init (setq langtool-default-language "en-US")
+  :config
+  (unless langtool-language-tool-jar
+    (setq langtool-language-tool-jar
+          (cond (IS-MAC
+                 (locate-file "libexec/languagetool-commandline.jar"
+                              (doom-files-in "/usr/local/Cellar/languagetool"
+                                             :type 'dirs
+                                             :depth 2)))
+                (IS-LINUX
+                 "/usr/share/java/languagetool/languagetool-commandline.jar")))))
+
+
+;; Detects weasel words, passive voice and duplicates
+(use-package! writegood-mode
+  :hook (org-mode markdown-mode rst-mode asciidoc-mode latex-mode)
+  :config
+  (map! :localleader
+        :map writegood-mode-map
+        "g" #'writegood-grade-level
+        "r" #'writegood-reading-ease))

modules/checkers/grammar/packages.el

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+;; -*- no-byte-compile: t; -*-
+;;; checkers/grammar/packages.el
+
+(package! langtool)
+(package! writegood-mode)