Fix `first_line_width` to be tab-aware
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A-whitespace
C-bug
SO-hard_tabs
- Dominant language
- Rust
- Stars
- 7k
- Forks
- 1.1k
- Avg merge
- 2d 13h
- Merged PRs (30d)
- 24
Description
Follow-up to https://github.com/rust-lang/rustfmt/pull/6883. The PR fixes last_line_width, but it looks like first_line_width helper has the same tab-unaware problem.
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 reading rustfmt PR 6883 and locating the first_line_width helper referenced in this issue. Compare its handling with the tab-aware last_line_width change, then verify that first_line_width accounts for tabs consistently with the reported behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 68/100