lenses

Elegant Data Manipulation with Lenses

v0.0.3 · Mar 6, 2019 · MIT + file LICENSE

Description

Provides tools for creating and using lenses to simplify data manipulation. Lenses are composable getter/setter pairs for working with data in a purely functional way. Inspired by the 'Haskell' library 'lens' (Kmett, 2012) <https://hackage.haskell.org/package/lens>. For a fairly comprehensive (and highly technical) history of lenses please see the 'lens' wiki <https://github.com/ekmett/lens/wiki/History-of-Lenses>.

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CRAN Check Status

5 NOTE

9 OK

Show all 14 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	NOTE	30.8s
r-devel-linux-x86_64-debian-gcc	NOTE	24.1s
r-devel-linux-x86_64-fedora-clang	OK	44.5s
r-devel-linux-x86_64-fedora-gcc	OK	41.5s
r-devel-macos-arm64	OK	11s
r-devel-windows-x86_64	OK	60s
r-oldrel-macos-arm64	NOTE
r-oldrel-macos-x86_64	NOTE	24s
r-oldrel-windows-x86_64	NOTE	71s
r-patched-linux-x86_64	OK	27.7s
r-release-linux-x86_64	OK	25.3s
r-release-macos-arm64	OK
r-release-macos-x86_64	OK	45s
r-release-windows-x86_64	OK	57s

Check details (5 non-OK)

NOTE r-devel-linux-x86_64-debian-clang

CRAN incoming feasibility

Maintainer: ‘Chris Hammill <cfhammill@gmail.com>’

Found the following (possibly) invalid file URI:
  URI: www.schoolofhaskell.com/school/to-infinity-and-beyond/pick-of-the-week/a-little-lens-starter-tutorial
    From: README.md

NOTE r-devel-linux-x86_64-debian-gcc

CRAN incoming feasibility

Maintainer: ‘Chris Hammill <cfhammill@gmail.com>’

Found the following (possibly) invalid file URI:
  URI: www.schoolofhaskell.com/school/to-infinity-and-beyond/pick-of-the-week/a-little-lens-starter-tutorial
    From: README.md

NOTE r-oldrel-macos-arm64

LazyData

'LazyData' is specified without a 'data' directory

NOTE r-oldrel-macos-x86_64

LazyData

'LazyData' is specified without a 'data' directory

NOTE r-oldrel-windows-x86_64

LazyData

'LazyData' is specified without a 'data' directory

Check History

NOTE 9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

NOTE r-devel-linux-x86_64-debian-clang

CRAN incoming feasibility

Maintainer: ‘Chris Hammill <cfhammill@gmail.com>’

Found the following (possibly) invalid file URI:
  URI: www.schoolofhaskell.com/school/to-infinity-and-beyond/pick-of-the-week/a-little-lens-starter-tutorial
    From: README.md

NOTE r-devel-linux-x86_64-debian-gcc

CRAN incoming feasibility

Maintainer: ‘Chris Hammill <cfhammill@gmail.com>’

Found the following (possibly) invalid file URI:
  URI: www.schoolofhaskell.com/school/to-infinity-and-beyond/pick-of-the-week/a-little-lens-starter-tutorial
    From: README.md

NOTE r-oldrel-macos-arm64

LazyData

'LazyData' is specified without a 'data' directory

NOTE r-oldrel-macos-x86_64

LazyData

'LazyData' is specified without a 'data' directory

NOTE r-oldrel-windows-x86_64

LazyData

'LazyData' is specified without a 'data' directory

Dependency Network

Version History

new 0.0.3 Mar 10, 2026