R Observatory: Metrics for ore version 1.8.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ore

1.8.0Package record

An R Interface to the Onigmo Regular Expression Library

3packages depend

13.5Kdownloads / year

43.9%test coverage

10/13flavors OK

Overview

About

Maintained by Jon ClaydenCRAN page ↗GitHub ↗Issues ↗

Provides an alternative to R's built-in functionality for handling regular expressions, based on the Onigmo library. Offers first-class compiled regex objects, partial matching and function-based substitutions, amongst other features.

Changes in 1.8.0

The bundled Onigmo regular expression library has been brought up to date with fixes made since version 6.2.0, both upstream and in the copy maintained as part of Ruby. These address a number of crashes, memory errors and incorrect results, particularly with unusual or malformed regexes.
Unicode data has been updated from version 9.0 to version 17.0, so character properties (\p{...}) and case-insensitive matching now cover recent additions such as additional scripts and emoji. The \X (extended grapheme cluster) escape, which previously crashed R when used with UTF-8 text, now works and follows current Unicode segmentation rules.
A group that matches an empty string is now returned as an empty string, rather than NA. Groups that don't take part in a match are still NA, and their offsets and lengths are now NA too.

Show all changes in 1.8.0Hide the rest of the changes in 1.8.0

When several replacement strings are given to ore_subst(), they are now applied to successive matches, as documented. Previously the last one used was applied to all matches, unless the replacements contained back-references.
Strings with no declared encoding (such as those read by readLines() without its encoding argument) are now matched in the encoding given by the ore.encoding option when the regex is given as a string, rather than being treated as ASCII. Previously, for example, \w would not match accented letters in such strings.
Encoding names are now matched in full, and in a case-insensitive and separator-insensitive way, so names such as "ISO-8859-15" are now handled correctly rather than being treated as ISO-8859-1 (due to a partial match). The "LATINn" aliases now refer to the standard encodings, and unrecognised names give a warning.
Text read from files or connections in encodings other than ASCII, UTF-8 or Latin-1 (e.g., Shift-JIS) is now converted to UTF-8 when returned to R.
Searching files in UTF-16 or UTF-32 now works.
Results from UTF-8 text are no longer corrupted when the session locale uses a different encoding.
Vectors mixing UTF-8 and Latin-1 strings are now searched fully when the regex is given as a string, rather than elements in the "other" encoding being skipped with a warning.
Regexes created with ore() and then saved (e.g., with saveRDS()) and loaded again now keep their options and syntax.
Starting positions passed to the main functions must now be positive integers; zero, negative and NA values produce an error rather than being quietly treated as giving no match. Starting positions beyond the end of the text, which crashed R with multibyte encodings, now consistently give no match.
Calling ore() with a missing (NA) pattern is now an error, and unsupported letters in its options argument produce a warning rather than being ignored.
ore_repl() now passes the correct matched text to replacement functions when there are several matches and the regex contains groups, and no longer fails when there are several groups and several matches.
Back-references to groups that don't take part in a match, or match an empty string, previously crashed R. They are now replaced with nothing.
The \G anchor could match when it shouldn't, because a failed search was retried from later in the text. Failed searches are no longer repeated, which also makes searches faster when many strings don't match.
Character offsets of repeated empty matches were wrong in multibyte encodings. This has been corrected.
Searching large numbers of strings, with ore_search() or %~%, is now substantially faster, due to more efficient memory use.
Printed matches now use display widths based on current Unicode data, so emoji, wide characters and newer combining marks line up correctly. Text is converted to the session's encoding for display, with characters that can't be shown replaced by "?", and carriage returns are shown as "\r". A crash when printing text containing many zero-width characters has been fixed.
es() now only removes the escape from "\\#{", leaving other backslashes intact.
Connections opened by the package in order to search them are now closed again afterwards. Connections that were already open are left open.
ore_escape() now preserves the declared encoding of its argument.
The native encoding is now detected more reliably when the package is loaded, using R's own locale information where possible. In a Latin-1 locale the ore.encoding option is now set to "latin1", and the C locale is treated as ASCII without a startup message.

From NEWS in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("ore", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("jonclayden/ore")

Development version from jonclayden/ore. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ore

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-ore

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-ore

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

3NOTE10OK

Check messages

NOTEcompiled coder-oldrel-macos-arm64, r-oldrel-macos-x86_64, r-oldrel-windows-x86_64

r-oldrel-macos-arm64, r-oldrel-macos-x86_64

File ‘ore/libs/ore.so’:
  Found non-API calls to R: ‘R_GetConnection’, ‘R_ReadConnection’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

r-oldrel-windows-x86_64

File 'ore/libs/x64/ore.dll':
  Found non-API calls to R: 'R_GetConnection', 'R_ReadConnection'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.

CRAN check page ↗

Slowest check: 2.9 min · r-devel-windows-x86_64

Status changes

NOTE10 OK, 3 NOTENow
NOTE11 OK, 2 NOTE2026-10-08
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.8.0

READMEYes · 2,069 wordsVignettesNoNEWSYes · 33% structured · mentions 1.8.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 13
Examples that run: 100%8 run in a plain check
Exported functions with examples: 67%
Documented parameters: 98%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

13.5K

CRAN downloads in the past year

Rank #3,580 · ~37/day · ~1.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.4K30 days

2.8K90 days

13.5K1 year

Compare downloads with other packages →

Also on400 r2u4 autocran5.1K conda_forge154 bioconda133 c2d4u

How downloads are counted

Repository

jonclayden/ore ↗Account: jonclayden

56Stars

2Forks

0Open issues

0Open PRs

6Releases

367Commits

2Commit identities

rregular-expressionsregextext-analysis

367 commits · Last activity 2026-10-07 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 1
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-03-12 · 552026-07-07 · 56

How these are measured

PracticesBeta

6 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/jonclayden/ore on 2026-10-18.

Continuous integration (3)

GitHub ActionsR CMD check workflowTravis CI (config file)

The R CMD check workflow runs on Linux and Windows

Docs source (1)

README.Rmd

Coverage (2)

Coverage reporting.covrignore

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing ore adds no packages beyond those that come with R.

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (4)

crayon rex tinytest covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

2indirect

Imports 3

Depends, Imports or LinkingTo, most downloaded first

reportr tractor.base arrg

How these are counted

Code & Tests

Datasets

People & History

People (3)

Jon Clayden

Maintainer since 1.0.0 (2014), Author

K Kosako

Author · added in 1.7.5.1

K Takata

Author · added in 1.7.5.1

Listed in earlier versions (2)

K. Kosako

no longer listed · 1.0.0 to 1.7.4.1

K. Takata

no longer listed · 1.0.0 to 1.7.4.1

Releases (22)

Pick two releases to compare their code metrics.

1.8.0Latest
record
2026-10-07 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.7.5.1
record
2025-03-14 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.7.4.1
record
2023-12-05 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.7.3.1
record
2023-01-16 · diff ↗
1.7.2.1
record
2022-11-01 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.7.1.1
record
2021-11-02 · diff ↗
1.7.0
record
2021-10-12 · diff ↗ ·
added 6 exports
ore.match, ore.repl, ore.switch, ore_match, ore_repl, ore_switch
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.6.3
record
2019-11-02 · diff ↗
R
R 3.6.0 released · 2019-04-26

Show 19 earlier eventsHide 19 earlier events

1.6.2
record
2018-08-30 · diff ↗
1.6.1
record
2018-05-22 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.6.0
record
2017-04-14 · diff ↗
1.5.0
record
2016-09-09 · diff ↗
1.4.0
record
2016-05-07 · diff ↗ ·
added 2 exports
ore.escape, ore_escape
R
R 3.3.0 released · 2016-05-03
1.3.0
record
2016-03-02 · diff ↗ ·
added 3 exports
%~|%, ore.file, ore_file
1.2.2
record
2016-01-27 · diff ↗
1.2.1
record
2015-08-10 · diff ↗
1.2.0
record
2015-07-17 · diff ↗ ·
added 8 exports
is_ore, is_orematch, ore_dict, ore_ismatch, ore_lastmatch, ore_search, ore_split, ore_subst
R
R 3.2.0 released · 2015-04-16
1.1.0
record
2015-02-26 · diff ↗ ·
added 2 exports
es, ore.dict
1.0.6
record
2015-01-01 · diff ↗
1.0.4
record
2014-11-25 · diff ↗
1.0.1
record
2014-10-22 · diff ↗
1.0.0
record
2014-10-20
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-10-20
Total releases: 22 / 12 yrs
License: BSD_3_clause + file LICENCE OSI
Bundled data: 5.3 KB / 1 file
Download size: 488 KB

Appears in task views

Natural Language Processing

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ore")

Format

Clayden, J., Kosako, K., & Takata, K. (2026). ore: An R Interface to the Onigmo Regular Expression Library (Version 1.8.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ore

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for ore version 1.8.0 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →