Copyright (C) 2017 and later: Unicode, Inc. and others.

License & terms of use: http://www.unicode.org/copyright.html

Copyright (C) 2014, International Business Machines

Corporation and others. All Rights Reserved.

created on: 2014 May 2

created by: Andy Heninger

genregexcasing is the tool for generating extended case closure data needed by regular expressions for case insensitive matching.

The tool generates c++ data declarations that are then manually copied into the file i18n/regexcmp.cpp.

Edit the Makefile to have the correct directories for your ICU sources and build (the top two lines.)

A Unix-like system and the clang compiler are assumed.

To build and run the tool, from within this directory, do a plain, unqualified make