rust-lang / rust-lang/rust-playground
Cursor position is wrong with special characters
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- Dominant language
- Rust
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Description
Hello all,
I haven't been able to find this written up anywhere, so here's the issue. Special characters cause the position to offset, probably due to the Unicode helpers. See the example here:
Place your cursor somewhere after the fancy a and type, you'll be typing one letter behind what you expect
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked Rust Playground reproduction and reproduce the cursor offset after the fancy character. Trace the Unicode-related cursor-position handling mentioned in the issue, then verify that typing after special characters inserts at the expected position without breaking ordinary text.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100