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As of #335, `TokenStream` is `Rc`. This makes twice as many allocations as it should, because there's one that holds {strong count, weak count, data ptr, length, capacity} and a different one that hol…
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### Prerequisites
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### Prerequisites
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* Checked that your issue isn't already [filed](https://github.com/leanprover-communit…
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I have a language server (https://github.com/leanprover/lean4) that uses `Hover.range?` to highlight term structure, e.g. hovering over `+` in `a + b` highlights the entire term. While this works well…
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### Prerequisites
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First, I am not sure whether this should be a RFC or a bug report. The current behavior is confusing and seemingly has no use cases, which is why I have opted for a bug report.
### Prerequisites
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### Prerequisites
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* Checked that your issue isn't already [filed](https://github.com/leanprover/lean4/is…
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### Prerequisites
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* [X ] Check that your issue is not already filed:
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Currently all of `vscode-lean4` runs as a [workspace extension](https://code.visualstudio.com/api/advanced-topics/extension-host#preferred-extension-location), meaning that in remote setups it will ru…
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### Proposal
Allow the symbol `ⱼ` to appear in identifiers without the need of French quotes.
- **User Experience**: I believe this feature will slightly improve the aesthetics of some code wr…