BurntSushi/jiff

Feature request: Recurrence rule expansion support

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#408 opened on Sep 7, 2025

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 (12 comments) (1 reaction) (0 assignees)Rust (102 forks)github user discovery
enhancementhelp wanted

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Description

Hi,

It would be fantastic if jiff could handle expanding iCalendar recurrence rules. Since you’ve already implemented this logic in biff, making that code available as a separate library would be incredibly helpful. It would allow calendaring apps (including those built on top of jiff) to reuse a solid, well-tested implementation instead of everyone having to reinvent it.

Thanks!

Contributor guide

Research direction
Review the biff library's recurrence expansion logic and understand how to extract or adapt it into a separate jiff crate. Identify the key components and dependencies.
Tech stack
rust
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50