进行扩展是 VSCode 仅适用于特定语言吗？

Question

I have recently installed an extension in VSCode that I find very useful for my workflow.

The extension is available at This Repository . It lets you underline the beginning and ending syntax of code blocks, and I find it to be really useful for working in html.erb files since VSCode doesn't do a really good job at highlighting certain snippets of code.

Is there a way to make the extension work only in specific languages or specific file types? Currently it works globally, even on plain text (for example if I type "do end" it will underline it even if I'm not in ruby language or in a .rb file). I would like it to work only in .rb and .html.erb files.

Let me explain it in a more technical way:

Current behavior:

If I open a Plain Text file in VSCode and type do end the extension will underline it.

Expected behavior:

If I open a Plain Text file in VSCode and type do end the extension d̲o̲e̲s̲ ̲n̲o̲t̲ have to underline it. It has to underline do end o̲n̲l̲y̲ in .rb and .html.erb files.

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Thank you

Answer 1

Look at language onActivation events .

In your package.json file:

"activationEvents": [
  "onLanguage:ruby",
  "onLanguage: whatever the languageID for .html.erb files is"
]

Replace with your language identifiers for .rb and .html.erb files, you can have multiple onLanguage events as shown.

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Also, looking at the extension's package.json link you provided, you should remove the activationEvent "*" - so only the above (I don't know what the language identifier for .html.erb files is).