Autocomplete Support

.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,
+	}
+};

package.json

@@ -30,6 +30,24 @@
   "engines": {
     "vscode": "^1.25.0"
   },
+  "activationEvents": [
+		"*"
+	],
+	"main": "./out/extension.js",
+	"scripts": {
+		"vscode:prepublish": "npm run compile",
+		"compile": "tsc -p ./",
+		"lint": "eslint \"src/**/*.ts\"",
+		"watch": "tsc -watch -p ./"
+	},
+	"devDependencies": {
+		"@types/node": "^16.18.34",
+		"@types/vscode": "^1.73.0",
+		"@typescript-eslint/eslint-plugin": "^6.7.0",
+		"@typescript-eslint/parser": "^6.7.0",
+		"eslint": "^8.26.0",
+		"typescript": "^5.2.2"
+	},
   "icon": "assets/exapunks.png",
   "keywords": [
     "EXAPUNKS",

src/extension.ts

@@ -0,0 +1,93 @@
+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+
+export function activate(context: vscode.ExtensionContext) {
+
+	const provider = vscode.languages.registerCompletionItemProvider('exa', {
+
+		provideCompletionItems(document: vscode.TextDocument, position: vscode.Position, token: vscode.CancellationToken, context: vscode.CompletionContext) {
+			const completions = [];
+
+			// Handle @{} and don't double autocomplete other commands.
+			const linePrefix = document.lineAt(position).text.slice(0, position.character);
+			if (linePrefix.includes(' ')) {
+				if (linePrefix.includes('@')) {
+					const moveCursorCommand: vscode.Command = {
+						title: "Move cursor left between brackets",
+						command: "cursorLeft"
+					};
+					const c = new vscode.CompletionItem('@{}');
+					c.command = moveCursorCommand;
+					c.range = new vscode.Range(position.translate(0, -1), position);
+					completions.push(c);
+					return completions;
+				} else {
+					// return undefined to allow general text matching
+					return undefined;
+				}
+			}
+
+			const lines = [
+				'@END',
+				'DROP',
+				'HALT',
+				'KILL',
+				'MAKE',
+				'MODE',
+				'NOOP',
+				'WIPE',
+
+				'@REP N',
+				'ADDI R/N R/N R',
+				'COPY R/N R',
+				'DIVI R/N R/N R',
+				'FILE R',
+				'FJMP L',
+				'GRAB R/N',
+				'HOST R',
+				'JUMP L',
+				'LINK R/N',
+				'MARK L',
+				'MODI R/N R/N R',
+				'MULI R/N R/N R',
+				'RAND R/N R/N R',
+				'REPL L',
+				'SEEK R/N',
+				'SUBI R/N R/N R',
+				'SWIZ R/N R/N R',
+				'TEST MRD/EOF',
+				'TEST R/N = R/N',
+				'TJMP L',
+				'VOID F',
+			];
+
+			for (const line of lines) {
+				const split = line.split(' ');
+				const k = split[0];
+				const c = new vscode.CompletionItem(line);
+				const elements = [k];
+				if (split.length > 1) {
+					if (split[1] == 'MRD/EOF') {
+						elements.push("${1|MRD,EOF|}");
+					} else {
+						// Just add space to end so command can be followed immediately by argument
+						elements.push('');
+					}
+				}
+				if (k.startsWith('@')) {
+					c.range = new vscode.Range(position.translate(0, -1), position);
+				}
+
+				c.insertText = new vscode.SnippetString(elements.join(' '));
+				completions.push(c);
+			}
+			return completions;
+		},
+
+	}, '@');
+
+	context.subscriptions.push(provider);
+}

syntaxes/exa.tmLanguage.json

@@ -59,6 +59,10 @@
         {
           "match": "(?i)\\b(TEST MRD|TEST EOF|TEST)\\b",
           "name": "keyword.control.exa"
+        },
+        {
+          "match": "(?i)(@REP|@END|@{|,|})",
+          "name": "keyword.control.exa"
         }
       ]
     },

tsconfig.json

@@ -0,0 +1,17 @@
+{
+	"compilerOptions": {
+		"module": "commonjs",
+		"target": "es2020",
+		"lib": [
+			"es2020"
+		],
+		"outDir": "out",
+		"sourceMap": true,
+		"strict": true,
+		"rootDir": "src"
+	},
+	"exclude": [
+		"node_modules",
+		".vscode-test"
+	]
+}