Add :lang json module

Removes json-mode from :lang data and adds LSP support (#2502).

docs/modules.org

@@ -111,6 +111,7 @@ Modules that bring support for a language or group of languages to Emacs.
 + [[file:../modules/lang/haskell/README.org][haskell]] =+dante +ghcide +lsp= - TODO
 + hy - TODO
 + [[file:../modules/lang/idris/README.org][idris]] - TODO
++ [[file:../modules/lang/json/README.org][json]] =+lsp= - TODO
 + java =+meghanada +lsp= - TODO
 + [[file:../modules/lang/javascript/README.org][javascript]] =+lsp= - JavaScript, TypeScript, and CoffeeScript support
 + julia =+lsp= - TODO

init.example.el

@@ -124,6 +124,7 @@
        ;;(haskell +dante)  ; a language that's lazier than I am
        ;;hy                ; readability of scheme w/ speed of python
        ;;idris             ;
+       ;;json              ; At least it ain't XML
        ;;(java +meghanada) ; the poster child for carpal tunnel syndrome
        ;;javascript        ; all(hope(abandon(ye(who(enter(here))))))
        ;;julia             ; a better, faster MATLAB

modules/lang/data/config.el

@@ -34,11 +34,6 @@
   :mode "\\.gql\\'"
   :config (setq-hook! 'graphql-mode-hook tab-width graphql-indent-level))
 
-(use-package! json-mode
-  :mode "\\.js\\(?:on\\|[hl]int\\(?:rc\\)?\\)\\'"
-  :config
-  (set-electric! 'json-mode :chars '(?\n ?: ?{ ?})))
-
 (after! jsonnet-mode
   (set-electric! 'jsonnet-mode :chars '(?\n ?: ?{ ?})))
 

modules/lang/data/packages.el

@@ -2,7 +2,6 @@
 ;;; lang/data/packages.el
 
 (package! graphql-mode :pin "7c37aee28b")
-(package! json-mode :pin "0e819e519a")
 (package! jsonnet-mode :pin "d8b486c837")
 (package! yaml-mode :pin "cecf4b106b")
 (package! csv-mode :pin "635337407c")

modules/lang/json/README.org

@@ -0,0 +1,40 @@
+#+TITLE:   lang/json
+#+DATE:    April 23, 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]]
+- [[#configuration][Configuration]]
+- [[#troubleshooting][Troubleshooting]]
+
+* Description
+This module provides JSON support.
+
+** Maintainers
+This module has no dedicated maintainers.
+
+** Module Flags
++ =+lsp= Enable integration with LSP servers, if one is available. Requires the
+  =:tools lsp= module to be enabled.
+
+** Plugins
++ [[https://github.com/joshwnj/json-mode][json-mode]]
++ [[https://github.com/Sterlingg/json-snatcher][json-snatcher]]
+
+* Prerequisites
+This module has no prereqisites.
+
+* TODO Features
+# An in-depth list of features, how to use them, and their dependencies.
+
+* TODO Configuration
+# How to configure this module, including common problems and how to address them.
+
+* TODO Troubleshooting
+# Common issues and their solution, or places to look for help.

modules/lang/json/config.el

@@ -0,0 +1,14 @@
+;;; lang/json/config.el -*- lexical-binding: t; -*-
+
+(use-package! json-mode
+  :mode "\\.js\\(?:on\\|[hl]int\\(?:rc\\)?\\)\\'"
+  :init
+  (when (featurep! +lsp)
+    (add-hook 'json-mode-local-vars-hook #'lsp!))
+  :config
+  (set-electric! 'json-mode :chars '(?\n ?: ?{ ?}))
+
+  (map! :after json-mode
+        :map json-mode-map
+        :localleader
+        "s" #'jsons-print-path))

modules/lang/json/packages.el

@@ -0,0 +1,5 @@
+;; -*- no-byte-compile: t; -*-
+;;; lang/json/packages.el
+
+(package! json-mode :pin "0e819e519a")
+(package! json-snatcher :pin "c4cecc0a50")