Vscode-ruby: Add snippet for #{} within a string

[Snake-Sanders]

Environment

• vscode-ruby version: 0.17.0
• Ruby version: ruby 2.3.1p112
• VS Code version: 1.21.1
• Operating System: Windows 7 enterprise
• Hardware (optional):

Expected behavior
In SublimeText 3 there is a nice snippet that within a string you type # and you get #{}

Actual behavior
At the moment I don't see this behavior in VSCode, I need to manually type # and { and } and move back the cursor to write the variable within the curly brackets.

Can somebody give me a hint where/how to implement this. I would like to add it to this excellent extension.

[gurgeous]

Great idea! I'm not an expert, but I think this can't be done as a standard snippet because snippets have no sense of context. You won't be able to figure out if the cursor is inside a string when using the VS Code Snippets feature. You also can't (yet) access the grammar/scopes within an extension (https://github.com/Microsoft/vscode/issues/580). Bummer.

You still might be able to hack it together, though. You'll have to add a custom command that runs when # is pressed. This part is easy - see the extension docs and vscode-ruby itself for hints. See if you can just great a function that calls vscode.window.showWarningMessage or something. Then you can try to use regex magic to see if you are within a string and insert the #{}.

Matching quotes is notoriously hard for regular expressions, though. If I were in your shoes I'd probably only attempt to handle the simplest possible case - /^[^"]+"[^"]+$/. That will still fail in many use cases but users may not mind.

[chriso0710]

I switched to VS code from Atom a few months ago. And one of the few features of Atoms Ruby support that I am really missing in VS code is this one.
Too bad that it looks like this simple wish might be somewhat complicated in VS Code...

[aliariff]

Hi, I created a solution specifically for this issue. Feel free to try it out.

https://marketplace.visualstudio.com/items?itemName=aliariff.auto-add-brackets

[github-actions[bot]]

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