Fast and portable character string processing in R (with the Unicode ICU)
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Updated
Jul 11, 2024 - C++
A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.
Regular expression techniques are developed in theoretical computer science and formal language theory. They are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are also supported in many programming languages.
Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax.
Fast and portable character string processing in R (with the Unicode ICU)
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TRE JNI Wrapper(TREJ) provides a Java interface that allows you access the native functions that have been defined in TRE. TRE(https://github.com/laurikari/tre/) is a lightweight, robust, and efficient POSIX compliant regex matching package with support for approximate (fuzzy) matching.