Log Message:
Updated to 3.0.12

Sep 20, 2020: 2.1.5 added matcher method lineno(n) to set or change the line \ 
number to n; added yyset_lineno(n,s) to flexlexer.h; updated Mini C compiler \ 
example.
Oct 12, 2020: 3.0.0 fixed a regression bug since v2.x; redesigned internals to \ 
increase IO efficiency and regex pattern search speed.
Oct 24, 2020: 3.0.1 improved handling of UTF-16/32 file encodings on Windows to \ 
prevent ^Z eof when files are opened in text mode.
Mar 16, 2021: 3.0.2 minor improvements and additions; fixed MinGW builds.
Apr 29, 2021: 3.0.3 fixed reflex::Input copy constructor; minor improvements.
May 27, 2021: 3.0.4 improvements and fixes for minor issues.
Jun 1, 2021: 3.0.5 minor usability improvements; changed \d to match Unicode \ 
when option unicode is enabled.
Jun 4, 2021: 3.0.6 minor improvements.
Jun 6, 2021: 3.0.7 updated examples to fix build problems.
Jul 15, 2021: 3.0.8 minor improvements.
Jul 22, 2021: 3.0.9 SIMD code split into simd_avx2.cpp and simd_avx512bw.cpp to \ 
support runtime CPU ID checking when the library is built with ./configure; \ 
make, disable AVX with ./configure --disable-avx, disable SSE2 with ./configure \ 
--disable-sse2; UTF-16LE BOM detection correction.
Aug 14, 2021: 3.0.10 fixed missing simd.h after installation, added \ 
REFLEX_BUFFER_SIZE to customize the initial size and growth of the input buffer.
Sep 14, 2021: 3.0.11 minor change to apply --prefix to the generated \ 
REFLEX_code_[PREFIX]STATE code.
Oct 11, 2021: 3.0.12 updated to Unicode 14; fixed a compilation issue with \ 
--params when used with --flex.