Incorrect handling of multiple-byte characters in double-quote string literal Rubocop quickfix
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bug
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- Dominant language
- Ruby
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Description
Description
Performing a quickfix on a single-quoted string literal, when a rubocop rule preferring double-quotes is active, outputs a double-quoted string with utf-8 content garbled.
Ruby LSP Information
neovim:
NVIM v0.12.3-dev-53+g0aa77cb78c
Build type: RelWithDebInfo
LuaJIT 2.1.1774638290
ruby:
ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]
ruby-lsp: tested on 0.26.9 and 0.27.0.beta2
Reproduction steps
- Setup rubocop in project with this rule
Style/StringLiterals:
EnforcedStyle: single_quotes
- Write a single quoted string containing multi-byte unicode characters
- Perform quickfix
- Unicode escape sequence is added and the last single-quote is not removed
https://github.com/user-attachments/assets/b163062d-b53c-413d-9e54-53acfe3d1b4b
Contributor guide
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 by reproducing the quickfix with the stated Style/StringLiterals configuration and a single-quoted string containing multi-byte Unicode characters. Trace the Ruby LSP handling of the RuboCop quickfix; done means the converted string preserves its Unicode content and removes the original closing single quote.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ruby
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100