Exploring and Testing the Toolchain and System Libraries

Helper functions that interface with the system utilities to learn about the local build environment. Lets you explore 'make' rules to test the local configuration, or query 'pkg-config' to find compiler flags and libs needed for building packages with external dependencies. Also contains tools to analyze which libraries that a installed R package linked to by inspecting output from 'ldd' in combination with information from your distribution package manager, e.g. 'rpm' or 'dpkg'.

A Clean, Whitespace-Sensitive Template Language for Writing HTML

Jade is a high performance template engine heavily influenced by Haml and implemented with JavaScript for node and browsers.

Toolkit for Encryption, Signatures and Certificates Based on OpenSSL

Bindings to OpenSSL libssl and libcrypto, plus custom SSH key parsers. Supports RSA, DSA and EC curves P-256, P-384, P-521, and curve25519. Cryptographic signatures can either be created and verified manually or via x509 certificates. AES can be used in cbc, ctr or gcm mode for symmetric encryption; RSA for asymmetric (public key) encryption or EC for Diffie Hellman. High-level envelope functions combine RSA and AES for encrypting arbitrary sized data. Other utilities include key generators, hash functions (md5, sha1, sha256, etc), base64 encoder, a secure random number generator, and 'bignum' math methods for manually performing crypto calculations on large multibyte integers.

A Compression Format Optimized for the Web

A lossless compressed data format that uses a combination of the LZ77 algorithm and Huffman coding < https://www.rfc-editor.org/info/rfc7932/>. Brotli is similar in speed to deflate (gzip) but offers more dense compression.

Extract Text from Rich Text Format (RTF) Documents

Wraps the 'unrtf' utility < https://www.gnu.org/software/unrtf/> to extract text from RTF files. Supports document conversion to HTML, LaTeX or plain text. Output in HTML is recommended because 'unrtf' has limited support for converting between character encodings.

Authenticate as a 'GitHub' App

'GitHub' apps provide a powerful way to manage fine grained programmatic access to specific 'git' repositories, without having to create dummy users, and which are safer than a personal access token for automated tasks. This package extends the 'gh' package to let you authenticate and interact with 'GitHub' < https://docs.github.com/en/rest/overview> in 'R' as an app.

Minimal and Uncluttered Package Documentation

Generates simple and beautiful one-page HTML reference manuals with package documentation. Math rendering and syntax highlighting are done server-side in R such that no JavaScript libraries are needed in the browser, which makes the documentation portable and fast to load.

R Bindings for 'ZeroMQ'

Interface to the 'ZeroMQ' lightweight messaging kernel (see < https://zeromq.org/> for more information).

Minimal Examples of Using Rust Code in R

Template R package with minimal setup to use Rust code in R without hacks or frameworks. Includes basic examples of importing cargo dependencies, spawning threads and passing numbers or strings from Rust to R. Cargo crates are automatically 'vendored' in the R source package to support offline installation. The GitHub repository for this package has more details and also explains how to set up CI. This project was first presented at 'Erum2018' to showcase R-Rust integration < https://jeroen.github.io/erum2018/>; for a real world use-case, see the 'gifski' package on 'CRAN'.

Read and Play Digital Music (MIDI)

Bindings to 'libfluidsynth' to parse and synthesize MIDI files. It can read MIDI into a data frame, play it on the local audio device, or convert into an audio file.