initial commit

.gitignore

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+out
+node_modules

.vscode/launch.json

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+// A launch configuration that compiles the extension and then opens it inside a new window
+{
+    "version": "0.1.0",
+    "configurations": [
+        {
+            "name": "Launch Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
+            "stopOnEntry": false,
+            "sourceMaps": true,
+            "outDir": "${workspaceRoot}/out/src",
+            "preLaunchTask": "npm"
+        },
+        {
+            "name": "Launch Tests",
+            "type": "extensionHost",
+            "request": "launch",
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}", "--extensionTestsPath=${workspaceRoot}/out/test" ],
+            "stopOnEntry": false,
+            "sourceMaps": true,
+            "outDir": "${workspaceRoot}/out/test",
+            "preLaunchTask": "npm"
+        }
+    ]
+}

.vscode/tasks.json

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+// Available variables which can be used inside of strings.
+// ${workspaceRoot}: the root folder of the team
+// ${file}: the current opened file
+// ${fileBasename}: the current opened file's basename
+// ${fileDirname}: the current opened file's dirname
+// ${fileExtname}: the current opened file's extension
+// ${cwd}: the current working directory of the spawned process
+
+// A task runner that calls a custom npm script that compiles the extension.
+{
+    "version": "0.1.0",
+
+    // we want to run npm
+    "command": "npm",
+
+    // the command is a shell script
+    "isShellCommand": true,
+
+    // show the output window only if unrecognized errors occur.
+    "showOutput": "silent",
+
+    // we run the custom script "compile" as defined in package.json
+    "args": ["run", "compile", "--loglevel", "silent"],
+
+    // The tsc compiler is started in watching mode
+    "isWatching": true,
+
+    // use the standard tsc in watch mode problem matcher to find compile problems in the output.
+    "problemMatcher": "$tsc-watch"
+}

.vscodeignore

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+.vscode/**
+typings/**
+out/test/**
+test/**
+src/**
+**/*.map
+.gitignore
+tsconfig.json
+vsc-extension-quickstart.md

package.json

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+{
+    "name": "formatter-sample",
+    "displayName": "formatter-sample",
+    "description": "",
+    "version": "0.0.1",
+    "publisher": "jrieken",
+    "engines": {
+        "vscode": "^1.6.0"
+    },
+    "categories": [
+        "Other"
+    ],
+    "activationEvents": [
+        "onLanguage:foo-lang"
+    ],
+    "main": "./out/src/extension",
+    "contributes": {
+        "languages": [
+            {
+                "id": "foo-lang",
+                "aliases": [
+                    "Foo"
+                ],
+                "extensions": [
+                    "foo"
+                ]
+            }
+        ],
+        "commands": [
+            {
+                "command": "extension.format-foo",
+                "title": "(Bad) Format Foo Files"
+            }
+        ]
+    },
+    "scripts": {
+        "postinstall": "node ./node_modules/vscode/bin/install"
+    },
+    "devDependencies": {
+        "@types/node": "*",
+        "vscode": "1.0.3"
+    }
+}

src/extension.ts

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+'use strict';
+
+import * as vscode from 'vscode';
+
+export function activate(context: vscode.ExtensionContext) {
+
+    // 👎 formatter implemented as separate command
+    vscode.commands.registerCommand('extension.format-foo', () => {
+        const {activeTextEditor} = vscode.window;
+
+        if (activeTextEditor && activeTextEditor.document.languageId === 'foo-lang') {
+            const {document} = activeTextEditor;
+            const firstLine = document.lineAt(0);
+            if (firstLine.text !== '42') {
+                const edit = new vscode.WorkspaceEdit();
+                edit.insert(document.uri, firstLine.range.start, '42\n');
+                return vscode.workspace.applyEdit(edit)
+            }
+        }
+    });
+
+    // 👍 formatter implemented using API
+    vscode.languages.registerDocumentFormattingEditProvider('foo-lang', {
+        provideDocumentFormattingEdits(document: vscode.TextDocument): vscode.TextEdit[] {
+            const firstLine = document.lineAt(0);
+            if (firstLine.text !== '42') {
+                return [vscode.TextEdit.insert(firstLine.range.start, '42\n')];
+            }
+        }
+    });
+}
+
+

tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es5",
+        "outDir": "out",
+        "lib": [
+            "es6"
+        ],
+        "sourceMap": true,
+        "rootDir": "."
+    },
+    "exclude": [
+        "node_modules",
+        ".vscode-test"
+    ]
+}