   pcretest [-d] [-i] [-m] [-o osize] [-p] [-t] [source]
[destination]  pcretest was written as a test program for the
PCRE regular expression library itself, but it can also be used
for experimenting with regular expressions. This document
describes the features of the test program; for details of the
regular expressions themselves, see the pcrepattern
documentation. For details of PCRE and its options, see the
pcreapi documentation.   -C Output the version number of the
PCRE library, and all available information about the optional
features that are included, and then exit.  -d Behave as if each
regex had the /D modifier (see below); the internal form is
output after compilation.  -i Behave as if each regex had the /I
modifier; information about the compiled pattern is given after
compilation.  -m Output the size of each compiled pattern after
it has been compiled. This is equivalent to adding /M to each
regular expression. For compatibility with earlier versions of
pcretest, -s is a synonym for -m.  -o osi