Complete the ASCII byte classification helpers
Maintainers usually reply within 1 day
Nobody has claimed this yet.
Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 76/100
Research direction
Start with std/string/ascii.wave and review the existing ASCII predicates and case-conversion helpers to follow their naming style. Define the intended ASCII ranges from the scope, then test every byte from 0 through 255, including punctuation boundaries, DEL, and non-ASCII bytes. Done means the new predicates are covered and existing behavior remains unchanged.
Written by the indexing model from the issue text.
Description
Motivation
ASCII helpers provide digit/letter/space checks and case conversion, but callers still repeat ASCII-range, hexadecimal-digit, control and printable-byte classification.
Starting points: std/string/ascii.wave.
Scope
Add a small coherent group of ASCII-only byte predicates, using existing naming style. Keep locale and Unicode classification outside this change.
Difficulty: easy.
Completion criteria
- Test every byte from 0 through 255 against explicit ASCII ranges.
- Cover boundary punctuation, DEL and non-ASCII bytes.
- Preserve all existing predicates and case-conversion behavior.
- Dominant language
- Rust
- Stars
- 56
- Forks
- 21
- Avg merge
- 2h 50m
- Merged PRs (30d)
- 54
Getting set up
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.
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