Part of the functionality of ⎕R and ⎕S is implemented using the PCRE library which is redistributed according to the following license.
PCRE LICENCE ------------ PCRE is a library of functions to support regular expressions whose syntax and semantics are as close as possible to those of the Perl 5 language. Release 8 of PCRE is distributed under the terms of the "BSD" licence, as specified below. The documentation for PCRE, supplied in the "doc" directory, is distributed under the same terms as the software itself. The basic library functions are written in C and are freestanding. Also included in the distribution is a set of C++ wrapper functions. THE BASIC LIBRARY FUNCTIONS --------------------------- Written by: Philip Hazel Email local part: ph10 Email domain: cam.ac.uk University of Cambridge Computing Service, Cambridge, England. Copyright (c) 1997-2009 University of Cambridge All rights reserved. THE C++ WRAPPER FUNCTIONS ------------------------- Contributed by: Google Inc. Copyright (c) 2007-2008, Google Inc. All rights reserved. which is redistributed according to the following license: