nc: Named Capture to Data Tables

User-friendly functions for extracting a data table (row for each match, column for each group) from non-tabular text data using regular expressions, and for melting columns that match a regular expression. Patterns are defined using a readable syntax that makes it easy to build complex patterns in terms of simpler, re-usable sub-patterns. Named R arguments are translated to column names in the output; capture groups without names are used internally in order to provide a standard interface to three regular expression 'C' libraries ('PCRE', 'RE2', 'ICU'). Output can also include numeric columns via user-specified type conversion functions.

Version:	2026.2.20
Depends:	R (≥ 2.14)
Imports:	data.table (≥ 1.15.0)
Suggests:	testthat, re2, stringi, ggplot2, tidyr (≥ 1.0.0), cdata, reshape2, knitr, markdown, rmarkdown, R.utils, covr, arrow
Published:	2026-02-26
DOI:	10.32614/CRAN.package.nc
Author:	Toby Hocking [aut, cre]
Maintainer:	Toby Hocking <toby.hocking at r-project.org>
BugReports:	https://github.com/tdhock/nc/issues
License:	GPL-3
URL:	https://github.com/tdhock/nc
NeedsCompilation:	no
Citation:	nc citation info
Materials:	NEWS
CRAN checks:	nc results

Documentation:

Reference manual:	nc.html , nc.pdf
Vignettes:	Overview of nc functionality (source, R code) Capture first match (source, R code) Capture all matches in a single subject string (source, R code) Capture melt (source, R code) Comparisons with other packages (source, R code) Helper functions (source, R code) Uniform interface to three regex engines (source, R code) Reading regularly named files (source, R code)

Downloads:

Package source:	nc_2026.2.20.tar.gz
Windows binaries:	r-devel: nc_2026.2.20.zip, r-release: nc_2026.2.20.zip, r-oldrel: nc_2026.2.20.zip
macOS binaries:	r-release (arm64): nc_2026.2.20.tgz, r-oldrel (arm64): nc_2026.2.20.tgz, r-release (x86_64): nc_2026.2.20.tgz, r-oldrel (x86_64): nc_2026.2.20.tgz
Old sources:	nc archive

Reverse dependencies:

Reverse imports:	slurm
Reverse suggests:	atime, aum, mlr3resampling

Linking:

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