Perl-совместимые регулярные выражения (Perl-compatible regular expressions)
CREATING CHARACTER TABLES AT BUILD TIME
PCRE uses fixed tables for processing characters whose code
values are less than 256. By default, PCRE is built with a set of
tables that are distributed in the file pcre_chartables.c.dist.
These tables are for ASCII codes only. If you add
--enable-rebuild-chartables
to the configure command, the distributed tables are no longer
used. Instead, a program called dftables is compiled and run.
This outputs the source for new set of tables, created in the
default locale of your C run-time system. (This method of
replacing the tables does not work if you are cross compiling,
because dftables is run on the local host. If you need to create
alternative tables when cross compiling, you will have to do so
"by hand".)
