Add language support and grammar for Fenn

.gitignore

@@ -1,4 +1,3 @@
 .direnv/
-.vscode/
 extension.js
 node_modules/

.vscode/launch.json

@@ -0,0 +1,13 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Extension",
+      "type": "extensionHost",
+      "request": "launch",
+      "args": [
+        "--extensionDevelopmentPath=${workspaceFolder}"
+      ]
+    }
+  ]
+}

extension.ts

@@ -1,5 +1,5 @@
 import { ExtensionContext } from "vscode";
 
-export function activate(context: ExtensionContext) { }
+export function activate(_context: ExtensionContext) { }
 
 export function deactivate() { }

fenn.json

@@ -0,0 +1,31 @@
+{
+  "comments": {
+    "lineComment": "#"
+  },
+  "brackets": [
+    [
+      "(",
+      ")"
+    ]
+  ],
+  "autoClosingPairs": [
+    [
+      "(",
+      ")"
+    ],
+    [
+      "\"",
+      "\""
+    ]
+  ],
+  "surroundingPairs": [
+    [
+      "(",
+      ")"
+    ],
+    [
+      "\"",
+      "\""
+    ]
+  ]
+}

fenn.tmLanguage.json

@@ -0,0 +1,72 @@
+{
+  "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+  "name": "Fenn",
+  "patterns": [
+    {
+      "include": "#storage"
+    },
+    {
+      "include": "#keyword"
+    },
+    {
+      "include": "#identifier"
+    },
+    {
+      "include": "#string"
+    },
+    {
+      "include": "#number"
+    },
+    {
+      "include": "#constant"
+    },
+    {
+      "include": "#operator"
+    },
+    {
+      "include": "#comment"
+    }
+  ],
+  "repository": {
+    "storage": {
+      "name": "storage.type.fenn",
+      "match": "(?i)\\b(var|const)\\b"
+    },
+    "keyword": {
+      "name": "keyword.other.fenn",
+      "match": "(?i)\\b(print)\\b"
+    },
+    "identifier": {
+      "name": "variable.other.fenn",
+      "match": "\\b[a-zA-Z_][a-zA-Z0-9_]*\\b"
+    },
+    "string": {
+      "name": "string.quoted.double.fenn",
+      "begin": "\"",
+      "end": "\"",
+      "patterns": [
+        {
+          "name": "constant.character.escape.fenn",
+          "match": "\\\\."
+        }
+      ]
+    },
+    "number": {
+      "name": "constant.numeric.fenn",
+      "match": "\\b\\d+(\\.\\d+)?\\b"
+    },
+    "constant": {
+      "name": "constant.language.fenn",
+      "match": "(?i)\\b(true|false|none)\\b"
+    },
+    "operator": {
+      "name": "keyword.operator.fenn",
+      "match": "\\+|-|\\*|/|&|[!=<>]=?"
+    },
+    "comment": {
+      "name": "comment.line.number-sign.fenn",
+      "match": "#.*$"
+    }
+  },
+  "scopeName": "source.fenn"
+}

package.json

@@ -2,12 +2,41 @@
   "name": "fennlang-vscode",
   "version": "0.1.0",
   "description": "Fennlang extension for Visual Studio Code",
+  "private": true,
   "engines": {
     "vscode": "^1.74.0"
   },
   "main": "extension.js",
-  "contributes": {},
+  "categories": [
+    "Programming Languages"
+  ],
+  "activationEvents": [
+    "onLanguage:semanticLanguage"
+  ],
+  "contributes": {
+    "languages": [
+      {
+        "id": "fenn",
+        "aliases": [
+          "Fenn",
+          "fenn"
+        ],
+        "extensions": [
+          ".fenn"
+        ],
+        "configuration": "./fenn.json"
+      }
+    ],
+    "grammars": [
+      {
+        "language": "fenn",
+        "scopeName": "source.fenn",
+        "path": "./fenn.tmLanguage.json"
+      }
+    ]
+  },
   "scripts": {
+    "vscode:prepublish": "npm run build",
     "build": "tsc"
   },
   "author": "Nettika <git@nettika.cat>",

tsconfig.json

@@ -1,7 +1,7 @@
 {
-    "compilerOptions": {
+  "compilerOptions": {
-        "lib": [
+    "lib": [
-            "ESNext"
+      "ESNext"
-        ]
+    ]
-    }
+  }
 }