The PCRE2 package contains a new generation of the Perl Compatible Regular Expression libraries. These are useful for implementing regular expression pattern matching using the same syntax and semantics as Perl.
This package is known to build and work properly using an LFS 11.3 platform.
Download (HTTP): https://github.com/PCRE2Project/pcre2/releases/download/pcre2-10.42/pcre2-10.42.tar.bz2
Download MD5 sum: a8e9ab2935d428a4807461f183034abe
Download size: 1.7 MB
Estimated disk space required: 19 MB (with tests)
Estimated build time: 0.4 SBU (with tests)
User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/pcre2
Install PCRE2 by running the following commands:
./configure --prefix=/usr \ --docdir=/usr/share/doc/pcre2-10.42 \ --enable-unicode \ --enable-jit \ --enable-pcre2-16 \ --enable-pcre2-32 \ --enable-pcre2grep-libz \ --enable-pcre2grep-libbz2 \ --enable-pcre2test-libreadline \ --disable-static && make
To test the results, issue: make check.
Now, as the root
user:
make install
--enable-unicode
: This
switch enables Unicode support and includes the functions for
handling UTF-8/16/32 character strings in the library.
--enable-pcre2-16
: This
switch enables 16 bit character support.
--enable-pcre2-32
: This
switch enables 32 bit character support.
--enable-pcre2grep-libz
:
This switch adds support for reading .gz compressed files to
pcre2grep.
--enable-pcre2grep-libbz2
:
This switch adds support for reading .bz2 compressed files to
pcre2grep.
--enable-pcre2test-libreadline
: This
switch adds line editing and history features to the pcre2test program.
--disable-static
: This
switch prevents installation of static versions of the libraries.
--enable-jit
: this option
enables Just-in-time compiling, which can greatly speed up pattern
matching.