# # 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