racket / racket/drracket

Position off by one

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bug
Dominant language
Racket
Stars
516
Forks
103
PR merge metrics
No merged PRs in 30d

Description

Let [] indicates a selection. Consider:

#lang racket
(define[ ]a 1)
a

c-x m would trigger a renaming of a, even though it doesn't really select a.

Note that this is a problem with the start position only.

#lang racket
(define a[ ]1)
a

would not trigger a renaming of a.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file, test, or entry point is named. Reproduce both selection examples in DrRacket, then trace the rename command's handling of the selection start position; done means the first example no longer renames a and the second remains unchanged.

Written by the indexing model from the issue text.

Assessment

Domain
devtools
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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