streamly-core: Streaming, parsers, arrays, serialization and more

For upgrading to streamly-0.9.0+ please read the Streamly-0.9.0 upgrade guide.

Streamly is a high-performance, beginner-friendly standard library for Haskell. It unifies streaming with list transformers and logic programming; unifies streaming with concurrency and reactive programming; unifies arrays with ring arrays, text, bytestring and vector use cases; unifies arrays with builders and binary serialization; generalizes parsers to any input type and unifies attoparsec, parsec use cases with better performance; provides streaming fileIO — all with a clean, consistent, well-integrated and streaming enabled API.

Streams are designed to have a list like interface — no steep learning curve, no complex types. Streamly is designed to build general purpose applications in a truly functional manner, from simple hello-world to advanced high-performance systems. The design emphasizes simplicity, modularity, and code reuse with minimal building blocks. Performance is on par with C, tuning is easy, and it’s hard to get it wrong.

Streamly is serial by default, with seamless declarative concurrency that scales automatically when needed. It provides prompt and safe resource management, works well with other streaming libraries as well as core libraries like bytestring and text, and is backed by solid documentation.

streamly-core is a Haskell standard library built on top of base and GHC boot libraries only. Stream processing abstractions include streams, scans, folds, parsers; and console IO, file IO; text processing. Array abstractions include pinned, unpinned, mutable, immutable, boxed and unboxed arrays, and ring arrays. Builders, binary serialization, and deserialization are built-in features of arrays.

This package provides a high-performance, unified and ergonomic alternative to many disparate packages, such as streaming, pipes, conduit, list-t, logict, foldl, attoparsec, array, primitive, vector, vector-algorithms, binary, cereal, store, bytestring, text, stringsearch, interpolate, filepath, and path.

Performant. Unified. Modular. Powerful. Simple.

Learn more at the streamly website.

Modules

[Index] [Quick Jump]

Flags

Manual Flags

Name	Description	Default
debug	Debug build with asserts enabled	Disabled
internal-dev	DO NOT USE, ONLY FOR INTERNAL USE.	Disabled
has-llvm	Use llvm backend for code generation	Disabled
opt	off=GHC default, on=-O2	Enabled
limit-build-mem	Limits memory when building	Disabled
internal-use-unliftio	DO NOT USE, ONLY FOR INTERNAL USE.	Disabled
use-unfolds	Use unfolds for generation everywhere	Disabled
use-folds	Use folds for elimination everywhere	Disabled
force-lstat-readdir	Use lstat instead of checking for dtype in ReadDir	Disabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

• streamly-core-0.3.0.tar.gz [browse] (Cabal source package)
• Package description (as included in the package)

Maintainer's Corner

Package maintainers

• harendra, adithyaov

For package maintainers and hackage trustees

• edit package information

Candidates

• 0.1.0, 0.2.1, 0.2.2, 0.2.3, 0.3.0