R: Report Configuration Options for PCRE

pcre_config {base}

R Documentation

Report Configuration Options for PCRE

Report some of the configuration options of the version of PCRE in use in this R session.

pcre_config()

A named logical vector, currently with elements

UTF-8

Support for UTF-8 inputs. Required.

Unicode properties

Support for ‘⁠\p{xx}⁠’ and ‘⁠\P{xx}⁠’ in regular expressions. Desirable and used by some CRAN packages.

JIT

Support for just-in-time compilation. Desirable for speed (but only available as a compile-time option on certain architectures).

stack

Does match recursion use a stack (TRUE, the PCRE default) or a heap? See the discussion at http://www.pcre.org/original/doc/html/pcrestack.html. (Added in R 3.4.0.)

pcre_config()