devel/hs-focus - The NetBSD Packages Collection

General abstraction for manipulating elements of containers

An API for construction of free-form strategies of access and manipulation
of elements of arbitrary data structures. It allows to implement efficient
composite patterns, e.g., a simultaneous update and lookup of an element,
and even more complex things.

Strategies are meant to be interpreted by the host data structure
libraries. Thus they allow to implement all access and modification
patterns of a data structure with just a single function, which interprets

This library provides pure and monadic interfaces, so it supports both
immutable and mutable data structures.

Build dependencies

pkgtools/mktools pkgtools/cwrappers

Runtime dependencies


Binary packages

NetBSD 10.0aarch64hs-focus-
NetBSD 10.0aarch64hs-focus-1.0.3nb2.tgz
NetBSD 10.0aarch64hs-focus-1.0.3nb2.tgz
NetBSD 10.0x86_64hs-focus-
NetBSD 10.0_BETAx86_64hs-focus-1.0.3nb2.tgz
NetBSD 8.0x86_64hs-focus-1.0.3nb2.tgz
NetBSD 8.0x86_64hs-focus-1.0.3nb2.tgz
NetBSD 9.0aarch64hs-focus-
NetBSD 9.0aarch64hs-focus-1.0.3nb2.tgz
NetBSD 9.0aarch64hs-focus-1.0.3nb2.tgz
NetBSD 9.0x86_64hs-focus-
NetBSD 9.0x86_64hs-focus-1.0.3nb2.tgz
NetBSD 9.3x86_64hs-focus-1.0.3nb2.tgz
NetBSD 9.3x86_64hs-focus-

Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.

Available build options


Known vulnerabilities

The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.

Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.

Problem reports, updates or suggestions for this package should be reported with send-pr.