m4b / m4b/scroll

Design for StrCtx that takes delimiter or maximum size

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Dominant language
Rust
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Description

See initial discussion in https://github.com/m4b/scroll/issues/108#issuecomment-3217055258

We may want to change behavior of DelimiterUntil, but probably more likely we'd add a ctx with this behavior.

Here are the only uses of DelimiterUntil in goblin:

```
src/pe/symbol.rs
207: .pread_with(offset, ctx::StrCtx::DelimiterUntil(0, 8))
466: .pread_with(offset, ctx::StrCtx::DelimiterUntil(0, length))
```

Either way it's a breaking change since we don't have non-exhaustive on StrCtx.

cc @kkent030315

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  3. Fork the repository and make your change on a branch.
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Research direction

Start with the discussion linked from issue 108, then inspect the two DelimiterUntil uses in src/pe/symbol.rs at lines 207 and 466. Compare whether the behavior belongs in DelimiterUntil or a new StrCtx variant, and document the breaking API impact; done means the design decision and affected callers are settled.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
reverse-engineering
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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