Regex extension for kdb+/q, using Google's re2 library.
$ git clone https://github.com/jfenton/qre2.git
$ cd qre2
$ git submodule init
$ git submodule update
$ make {m32,m64,l32,l64}
$ QHOME=/path/to/kdb make install
q) \l rex.q
q)rex[("heLLO123";"hello321");"he(?P<blah>[^0-9]+)(?P<tst2>\\d)(?P<moo>\\d+)"]
input blah moo tst2
------------------------
heLLO123 "LLO" ,"1" "23"
hello321 "llo" ,"3" "21"
q)rexs[("heLLO123";"hello321");"he(?P<blah>[^0-9]+)(?P<tst2>\\d)(?P<moo>\\d+)"]
"blah" "moo" "tst2"
"LLO" "23" ,"1"
"llo" "21" ,"3"
q)rexm[("heLLO123";"hello321");"he(?P<blah>[^0-9]+)(?P<tst2>\\d)(?P<moo>\\d+)"]
11b
LGPLv3. See LICENSE and COPYING.LESSER.
Copyright (c) 2016 Jay Fenton na.nu@na.nu
Other parts of this software (e.g. Google re2, Kx k.h) are covered by other licences.