idna: Support `no_alloc` idna validator
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- Dominant language
- Rust
- Stars
- 1.6k
- Forks
- 406
- PR merge metrics
- No merged PRs in 30d
Description
Hi, the current idna crate supports no_std, but it cannot compile without alloc feature. Sometimes, users may only want to check if a &str is a valid international domain name and do not need to convert it to either unicode or ascii. For the validator, it should be possible to be implemented without alloc.
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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 by locating the idna crate's validator implementation and feature definitions, then inspect the existing no_std and alloc-related tests. Confirm how validation currently depends on allocation and determine the smallest testable entry point. Done means a validator can check a &str for a valid international domain name while compiling without the alloc feature.
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Assessment
- Tech stack
- rust
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100