Added Language Support Extension

forgscript/language/.vscodeignore

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+.vscode/**
+.vscode-test/**
+.gitignore
+vsc-extension-quickstart.md

forgscript/language/README.md

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+# Forglang Language Support
+
+Adds language support for Forgscript
+
+## Features
+
+- Syntax highlighting
+- Underline next step
+
+## Extension Settings
+
+Include if your extension adds any VS Code settings through the `contributes.configuration` extension point.
+
+For example:
+
+This extension contributes the following settings:
+
+* `forgscript.highlightNextCommand`: Specifies whether to highlight the next step of the program
+
+## Release Notes
+
+### 0.1.0
+
+Initial release

forgscript/language/extension.js

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+// The module 'vscode' contains the VS Code extensibility API
+// Import the module and reference it with the alias vscode in your code below
+const vscode = require('vscode');
+
+let style = vscode.window.createTextEditorDecorationType(
+	{ borderStyle: "solid", borderColor: new vscode.ThemeColor('textLink.activeForeground'), borderWidth: "0 0 2px 0" });					// The code window decoration style
+
+/**
+ * @param {vscode.ExtensionContext} context
+ */
+function activate(context) {
+
+	// Use the console to output diagnostic information (console.log) and errors (console.error)
+	// This line of code will only be executed once when your extension is activated
+	console.log('Forgscript Language Extension Active');
+
+	// Set the background text color using the provided input
+	function updateDecorations(ranges, editor) {
+		// Apply this highlight color (style) to the specified line (ranges)
+		editor.setDecorations(style, ranges);
+	}
+
+	function getDecoratorRanges(char, x, y) {
+		function collatz(x) {
+			return x % 2 == 0 ? collatz_even(x) : collatz_odd(x)
+		}
+		function collatz_even(x) {
+			return x / 2;
+		}
+		function collatz_odd(x) {
+			return 3 * x + 1
+		}
+
+		function getRange(x, y){
+			let pos = new vscode.Position(y - 1, x - 1);
+			return new vscode.Range(pos, pos.translate(0, 1))
+		}
+
+		if (char == 'v'){
+			return [getRange(collatz(x), y + 1)]
+		} else if (char == '^'){
+			return [getRange(collatz(x), y - 1)]
+		} else if (char == '*'){
+			return x % 2 == 0 ? [getRange(collatz_even(x), y), getRange(collatz_odd(x), y)] : [getRange(collatz(x), y)]
+		} else {
+			return [getRange(collatz(x), y)]
+		}
+	}
+
+	function isUnitSelection(selections) {
+		if (selections.length != 1) return false;
+		let selection = selections[0];
+		if (selection.isEmpty) return true;
+		if (selection._end._line - selection._start._line == 0 && selection._end._character - selection._start._character <= 1) return true;
+		return false;
+	}
+
+	// Event Handler: This event fires when the selected text changes
+	vscode.window.onDidChangeTextEditorSelection(e => {
+		if (e.textEditor.document.languageId == "forgscript" && isUnitSelection(e.selections) && vscode.workspace.getConfiguration('forgscript').get('highlightNextCommand')) {
+			let pos = e.selections[0]._start
+			let char = e.textEditor.document.getText(new vscode.Range(pos, pos.translate(0, 1)))
+			let ranges = getDecoratorRanges(char, pos._character + 1, pos._line + 1);
+			updateDecorations(ranges, e.textEditor);
+		} else {
+			updateDecorations([], e.textEditor);
+		}
+	}, null, context.subscriptions);
+
+}
+
+
+
+// this method is called when the extension is deactivated
+function deactivate() {
+	// Remove the text highlighting when the plugin is terminated
+	if (style !== undefined) {
+		style.dispose();
+	}
+}
+
+module.exports = {
+	activate,
+	deactivate
+}

forgscript/language/language-configuration.json

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+{
+}

forgscript/language/package.json

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+{
+  "name": "forgscript-language-support",
+  "displayName": "forgscript-language-support",
+  "description": "Adds VSCode support for ForgScript",
+  "version": "0.1.0",
+  "engines": {
+    "vscode": "^1.69.0"
+  },
+  "categories": [
+    "Programming Languages",
+    "Other"
+  ],
+  "activationEvents": [
+    "onLanguage:forgscript"
+  ],
+  "main": "./extension.js",
+  "contributes": {
+    "languages": [
+      {
+        "id": "forgscript",
+        "aliases": [
+          "ForgScript",
+          "forgscript"
+        ],
+        "extensions": [
+          ".fgs",
+          ".forgs"
+        ],
+        "configuration": "./language-configuration.json"
+      }
+    ],
+    "grammars": [
+      {
+        "language": "forgscript",
+        "scopeName": "source.forgscript",
+        "path": "./syntaxes/forgscript.tmLanguage.json"
+      }
+    ],
+    "configuration": {
+      "title": "ForgScript",
+      "properties": {
+        "forgscript.highlightNextCommand": {
+          "type": "boolean",
+          "default": true,
+          "description": "Specifies whether to highlight the next step of the program"
+        }
+      }
+    }
+  },
+  "devDependencies": {
+    "@types/vscode": "^1.69.0"
+  }
+}

forgscript/language/syntaxes/forgscript.tmLanguage.json

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+{
+	"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+	"name": "ForgScript",
+	"patterns": [
+		{
+			"include": "#control"
+		},
+		{
+			"include": "#io"
+		},
+		{
+			"include": "#memory"
+		},
+		{
+			"include": "#comment"
+		}
+	],
+	"repository": {
+		"control": {
+			"patterns": [{
+				"name": "keyword.control.forgscript",
+				"match": "[v^\\*]"
+			}]
+		},
+		"io": {
+			"patterns": [{
+				"name": "entity.name.function.forgscript",
+				"match": "[><]"
+			}]
+		},
+		"memory": {
+			"patterns": [{
+				"name": "entity.name.tag.forgscript",
+				"match": "[\\+\\-]"
+			}]
+		},
+		"comment": {
+			"name": "comment.forgscript",
+			"patterns": [
+				{
+					"name": "comment.ignored.forgscript",
+					"match": "."
+				}
+			]
+		}
+	},
+	"scopeName": "source.forgscript"
+}