checkstring: Common String Format Validation

Validates common string formats including financial identifiers (ISIN, CUSIP, SEDOL, FIGI, IBAN, LEI), publication identifiers (ISBN, ISSN, DOI, ORCID), and general formats (email, UUID, URL, semver), with check digit verification where applicable.

Version: 0.1.0
Depends: R (≥ 4.1.0)
Suggests: curl, testthat (≥ 3.0.0)
Published: 2026-03-05
DOI: 10.32614/CRAN.package.checkstring (may not be active yet)
Author: Maximilian Mücke ORCID iD [aut, cre]
Maintainer: Maximilian Mücke <muecke.maximilian at gmail.com>
BugReports: https://github.com/m-muecke/checkstring/issues
License: MIT + file LICENSE
URL: https://m-muecke.github.io/checkstring/, https://github.com/m-muecke/checkstring
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: checkstring results

Documentation:

Reference manual: checkstring.html , checkstring.pdf

Downloads:

Package source: checkstring_0.1.0.tar.gz
Windows binaries: r-devel: not available, r-release: checkstring_0.1.0.zip, r-oldrel: checkstring_0.1.0.zip
macOS binaries: r-release (arm64): checkstring_0.1.0.tgz, r-oldrel (arm64): checkstring_0.1.0.tgz, r-release (x86_64): checkstring_0.1.0.tgz, r-oldrel (x86_64): checkstring_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=checkstring to link to this page.