List, String, and Meta Programming Utility Functions

Includes functions for mapping named lists to function arguments, random strings, pasting and combining rows together across columns, etc.

Wrapper for 'lz-string' 'C++' Library

Provide access to the 'lz-string' < http://pieroxy.net/blog/pages/lz-string/index.html> 'C++' library for Lempel-Ziv (LZ) based compression and decompression of strings.

String Processing Reimagined for 'ALTREP' Strings

An experimental fork of 'stringr'. The functions and semantics are the same, apart from differences between 'ICU' and Unicode versions, but everything is optimized around 'ALTREP' strings (custom high-performance string storage), allowing for faster and more efficient operation.

Parse 'YMD' Format Number or String to Date

Convert 'YMD' format number or string to Date efficiently, using Rust's standard library. It also provides helper functions to handle Date, e.g., quick finding the beginning or end of the given period, adding months to Date, etc.

Manipulation of JSON Strings

Fast manipulation of JSON strings. Allows to extract or delete an element in a JSON string, merge two JSON strings, and more.

Fast String Searching

Wrapper for the Succinct Data Structure C++ library (SDSL v3) < https://github.com/xxsds/sdsl-lite> enabling fast string searching using FM indices. Partial string matching can be ~50-fold faster than simple string scans for many real-world string collections (corpora). A given corpus is converted into a compact in-memory FM index representation that can be efficiently queried for partial string matches.

Alt String Implementation

Provides an extendable, performant and multithreaded 'alt-string' implementation backed by 'C++' vectors and strings.

Dynamic String Formatting

Pass named and unnamed character vectors into specified positions in strings. This represents an attempt to replicate some of python's string formatting.

ALTREP String Interoperability

Provides infrastructure for interoperable ALTREP character vectors. Producers of ALTREP string classes can register access methods, allowing consumers to read supported character vectors through a common interface without materializing them as ordinary R strings. Also provides 'charvec', a reference ALTREP string implementation backed by stable memory slices, with support for efficient and multithreaded construction.

Fuzzy String Comparison

Provides string similarity calculations inspired by the Python 'thefuzz' package. Compare strings by edit distance, similarity ratio, best matching substring, ordered token matching and set-based token matching. A range of edit distance measures are available thanks to the 'stringdist' package.