RE2 Regular Expression

RE2 <> is a primarily deterministic finite automaton based regular expression engine from Google that is very fast at matching large amounts of text.


Reference manual

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0.2.0 by Qin Wenfeng, 19 days ago

Report a bug at

Browse source code at

Authors: Qin Wenfeng [aut, cre], Toby Dylan Hocking [ctb] (benchmarks), Marek Gagolewski [ctb] (stringi benchmarks and test cases), RE2 developers [ctb] (RE2 library), Google Inc. [ctb, cph] (RE2 library), Lucent Technologies [ctb, cph] (RE2 library), Rob Pike [ctb] (RE2 library), Ken Thompson [ctb] (RE2 library), Julian Seward [ctb, cph] (valgrind.h), Andrzej Krzemienski [ctb] (optional.hpp), Jeffrey Avallone [ctb] (regexper library)

Documentation:   PDF Manual  

BSD_3_clause + file LICENSE license

Imports Rcpp, stringi, RcppParallel, htmlwidgets

Suggests knitr, testthat, rmarkdown, microbenchmark, ggplot2, directlabels

Linking to Rcpp, RcppParallel

System requirements: GNU make

See at CRAN