PCRE - Perl-compatible regular expressions .rs #include <pcre.h>

char *pcre_version(void); .

.rs This function returns a character string that gives the version number of the PCRE library and the date of its release.

There is a complete description of the PCRE native API in the HREF
pcreapi
page and a description of the POSIX API in the HREF
pcreposix
page.