PCRE2 - Perl-compatible regular expressions (revised API) .rs #include <pcre2.h>

 int pcre2_set_character_tables(pcre2_compile_context *ccontext,  " const unsigned char *tables);" 

. .rs This function sets a pointer to custom character tables within a compile context. The second argument must be the result of a call to pcre2_maketables() or NULL to request the default tables. The result is always zero.

There is a complete description of the PCRE2 native API in the HREF
pcre2api
page and a description of the POSIX API in the HREF
pcre2posix
page.