Added a new configuration option to enable or disable escaping special VSCode snippet variables.

.gitignore

@@ -2,3 +2,5 @@ node_modules
 .vscode-test/
 *.vsix
 .DS_Store
+build/
+*.code-workspace

.prettierignore

@@ -0,0 +1 @@
+package-lock.json

CHANGELOG.md

@@ -0,0 +1,7 @@
+# Changelog for Snippet Generator
+
+## [0.3.9]
+
+1. Added a configuration option ( `doNotEscapeSpecialVariables` ) that will not escape special variables when they correspond to [special snippet syntax constructs](https://code.visualstudio.com/docs/editing/userdefinedsnippets#_snippet-syntax). The default is `true` and this behavior is identical to how the plugin has always functioned.
+2. This includes text that starts with a dollar sign and follows the format of `$name`, `${name:default}`, or `$TM_SELECTED_TEXT`. Any text that follows this naming pattern will not be escaped.
+3. If `doNotEscapeSpecialVariables` is set to `false`, then all instances of the dollar sign will be escaped with double backslashes.

README.md

@@ -13,6 +13,10 @@ Command: `Generate Snippet`
 
 ![Demo](https://github.com/raw/wenfangdu/vscode-snippet-generator/main/images/demo.gif)
 
+## Settings
+
+`snippet-generator.doNotEscapeSpecialVariables`: Do not escape special snippet variables that follow the syntax of `$name`, `${name:somevalue}`, or `$TM_SELECTED_TEXT`. (`true` by default, thanks [@Jay](https://github.com/futuremotiondev))
+
 ## Inspired By
 
 - [Johnson Chu's comment](https://github.com/johnsoncodehk/volar/issues/183#issuecomment-842804053)

extension.js

@@ -3,79 +3,99 @@
 const { commands, window, workspace, env } = require('vscode')
 
 exports.activate = ({ subscriptions }) => {
-  const disposable = commands.registerCommand('snippet-generator.generate-snippet', async () => {
-    const editor = window.activeTextEditor
-
-    if (!editor) {
-      return window.showErrorMessage('No active text editor')
-    }
-
-    const selection = editor.document.getText(editor.selection)
-
-    if (!selection.length) {
-      return window.showErrorMessage('No selected text')
-    }
-
-    const name = await window.showInputBox({
-      placeHolder: 'Please enter name (required)',
-      validateInput: input => (input ? '' : 'Name is required'),
-    })
-
-    if (name === undefined) {
-      return
-    }
-
-    const scope = await window.showInputBox({
-      placeHolder: 'Please enter scope (optional)',
-    })
-
-    if (scope === undefined) {
-      return
+  let doNotEscapeSpecialVariables = workspace
+    .getConfiguration('snippet-generator')
+    .get('doNotEscapeSpecialVariables')
+
+  const respondToConfigChange = workspace.onDidChangeConfiguration(event => {
+    if (event.affectsConfiguration('snippet-generator')) {
+      doNotEscapeSpecialVariables = workspace
+        .getConfiguration('snippet-generator')
+        .get('doNotEscapeSpecialVariables')
     }
-
-    const prefix = await window.showInputBox({
-      placeHolder: 'Please enter prefix (required)',
-      validateInput: input => (input ? '' : 'Prefix is required'),
-    })
-
-    if (prefix === undefined) {
-      return
-    }
-
-    const description = await window.showInputBox({
-      placeHolder: 'Please enter description (optional)',
-    })
-
-    if (description === undefined) {
-      return
-    }
-
-    const tabSize = workspace.getConfiguration('editor').get('tabSize')
-
-    const spaces = new RegExp(` {${tabSize}}`, 'g')
-
-    const snippetObj = {
-      [name]: {
-        ...(scope && { scope }),
-        prefix,
-        body: selection
-          .split(/\r?\n/)
-          .map(line => line.replace(/\$(?![\d{]|TM_)/g, '\\$').replace(spaces, '\t')),
-        ...(description && { description }),
-      },
-    }
-
-    const snippetJSON = JSON.stringify(snippetObj, null, tabSize)
-      .split('\n')
-      .slice(1, -1)
-      .join('\n')
-
-    env.clipboard.writeText(`${snippetJSON},`)
-
-    window.showInformationMessage(
-      'Snippet has been copied into the clipboard, please use the command "Snippets: Configure User Snippets" to paste it.',
-    )
   })
 
-  subscriptions.push(disposable)
+  const generateSnippetCommand = commands.registerCommand(
+    'snippet-generator.generate-snippet',
+    async () => {
+      const editor = window.activeTextEditor
+
+      if (!editor) {
+        window.showErrorMessage('Error: No text editor is active')
+        return
+      }
+
+      const selection = editor.document.getText(editor.selection)
+
+      if (!selection.length) {
+        window.showErrorMessage('Error: No text is selected')
+        return
+      }
+
+      const name = await window.showInputBox({
+        placeHolder: 'Please enter snippet name (required)',
+        validateInput: input => (input ? '' : 'Snippet Name is required'),
+      })
+
+      if (name === undefined) {
+        return
+      }
+
+      const scope = await window.showInputBox({
+        placeHolder: 'Please enter a scope (optional)',
+      })
+
+      if (scope === undefined) {
+        return
+      }
+
+      const prefix = await window.showInputBox({
+        placeHolder: 'Please enter a prefix for intellisense (required)',
+        validateInput: input => (input ? '' : 'Snippet Prefix is required'),
+      })
+
+      if (prefix === undefined) {
+        return
+      }
+
+      const description = await window.showInputBox({
+        placeHolder: 'Please enter a description (optional)',
+      })
+
+      if (description === undefined) {
+        return
+      }
+
+      const tabSize = workspace.getConfiguration('editor').get('tabSize')
+
+      const spaces = new RegExp(` {${tabSize}}`, 'g')
+
+      const regex = doNotEscapeSpecialVariables ? /\$(?![\d{]|TM_)/g : /\$/g
+
+      const snippetObj = {
+        [name]: {
+          ...(scope && { scope }),
+          prefix,
+          body: selection
+            .split(/\r?\n/)
+            .map(line => line.replace(regex, '\\$').replace(spaces, '\t')),
+          ...(description && { description }),
+        },
+      }
+
+      const snippetJSON = JSON.stringify(snippetObj, null, tabSize)
+        .split('\n')
+        .slice(1, -1)
+        .join('\n')
+
+      env.clipboard.writeText(`${snippetJSON},`)
+
+      window.showInformationMessage(
+        'Snippet has been copied, please use the command "Snippets: Configure Snippets" to paste it.',
+      )
+    },
+  )
+
+  subscriptions.push(generateSnippetCommand)
+  subscriptions.push(respondToConfigChange)
 }