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Theme fund: NGI0 Commons Fund
Start: 2025-10
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Parley

Rich text layout and editing library

Parley is a Rust library for implementing rich text layout and includes utilities for text selection and editing, as well as font enumeration and fallback through the companion library Fontique. Parley depends on the production-quality text shaping engine HarfRust. This project aims to prove Parley's flexibility through modularity, allowing users to choose the high low-level APIs that are suitable to them and making it easier to implement various layout strategies. Additionally, more layout and bidirectional text features will be implemented, especially targeting web use-cases. Further goals are to improve handling of font loading and font fallback behavior, focusing on performance as well as allowing richer web-style font selectors and fallback.

Run by Linebender

Logo NLnet: abstract logo of four people seen from above Logo NGI Zero: letterlogo shaped like a tag

This project was funded through the NGI0 Commons Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 101135429. Additional funding is made available by the Swiss State Secretariat for Education, Research and Innovation (SERI).