Feature/vscode extension

Makefile

@@ -15,6 +15,10 @@ COV_PATH_FILE = cov_path
 
 BROWSER = firefox
 
+EXTENSION_NAME = lobsterlang-0.0.1.vsix
+
+MODULE_PATH = extension/node_modules
+
 all:
 	cd $(PKG_NAME) && stack install $(PKG_NAME) --local-bin-path ..
 	mv $(PKG_NAME)-exe $(NAME)
@@ -36,4 +40,10 @@ cov:
 	$(BROWSER) $$(cat $(PKG_NAME)/$(COV_PATH_FILE) | sed 's/.$$//')
 	rm $(PKG_NAME)/$(COV_PATH_FILE)
 
+install_extension: $(MODULE_PATH)
+	cd extension && vsce pack && code --install-extension $(EXTENSION_NAME)
+
+$(MODULE_PATH):
+	cd extension && npm install
+
 .PHONY: all clean fclean re tests_run

extension/.eslintignore

@@ -0,0 +1,5 @@
+node_modules/**
+client/node_modules/**
+client/out/**
+server/node_modules/**
+server/out/**

extension/.eslintrc.js

@@ -0,0 +1,20 @@
+/**@type {import('eslint').Linter.Config} */
+// eslint-disable-next-line no-undef
+module.exports = {
+	root: true,
+	parser: '@typescript-eslint/parser',
+	plugins: [
+		'@typescript-eslint',
+	],
+	extends: [
+		'eslint:recommended',
+		'plugin:@typescript-eslint/recommended',
+	],
+	rules: {
+		'semi': [2, "always"],
+		'@typescript-eslint/no-unused-vars': 0,
+		'@typescript-eslint/no-explicit-any': 0,
+		'@typescript-eslint/explicit-module-boundary-types': 0,
+		'@typescript-eslint/no-non-null-assertion': 0,
+	}
+};

extension/.gitignore

@@ -0,0 +1,5 @@
+out
+node_modules
+client/server
+.vscode-test
+*.vsix

extension/.vscodeignore

@@ -0,0 +1,15 @@
+.vscode/**
+**/*.ts
+**/*.map
+.gitignore
+**/tsconfig.json
+**/tsconfig.base.json
+contributing.md
+.travis.yml
+client/node_modules/**
+!client/node_modules/vscode-jsonrpc/**
+!client/node_modules/vscode-languageclient/**
+!client/node_modules/vscode-languageserver-protocol/**
+!client/node_modules/vscode-languageserver-types/**
+!client/node_modules/{minimatch,brace-expansion,concat-map,balanced-match}/**
+!client/node_modules/{semver,lru-cache,yallist}/**

extension/README.md

@@ -0,0 +1,37 @@
+# LSP Example
+
+Heavily documented sample code for https://code.visualstudio.com/api/language-extensions/language-server-extension-guide
+
+## Functionality
+
+This Language Server works for plain text file. It has the following language features:
+- Completions
+- Diagnostics regenerated on each file change or configuration change
+
+It also includes an End-to-End test.
+
+## Structure
+
+```
+.
+├── client // Language Client
+│   ├── src
+│   │   ├── test // End to End tests for Language Client / Server
+│   │   └── extension.ts // Language Client entry point
+├── package.json // The extension manifest.
+└── server // Language Server
+    └── src
+        └── server.ts // Language Server entry point
+```
+
+## Running the Sample
+
+- Run `npm install` in this folder. This installs all necessary npm modules in both the client and server folder
+- Open VS Code on this folder.
+- Press Ctrl+Shift+B to start compiling the client and server in [watch mode](https://code.visualstudio.com/docs/editor/tasks#:~:text=The%20first%20entry%20executes,the%20HelloWorld.js%20file.).
+- Switch to the Run and Debug View in the Sidebar (Ctrl+Shift+D).
+- Select `Launch Client` from the drop down (if it is not already).
+- Press ▷ to run the launch config (F5).
+- In the [Extension Development Host](https://code.visualstudio.com/api/get-started/your-first-extension#:~:text=Then%2C%20inside%20the%20editor%2C%20press%20F5.%20This%20will%20compile%20and%20run%20the%20extension%20in%20a%20new%20Extension%20Development%20Host%20window.) instance of VSCode, open a document in 'plain text' language mode.
+  - Type `j` or `t` to see `Javascript` and `TypeScript` completion.
+  - Enter text content such as `AAA aaa BBB`. The extension will emit diagnostics for all words in all-uppercase.