source: trunk/essentials/sys-apps/gawk/test/ignrcas2.awk

# Based on test program submitted by:
# Date: Sun, 7 Sep 2003 23:11:51 +0200
# From: Michael Mauch <michael.mauch@gmx.de>
# To: bug-gawk@gnu.org
# Subject: Internal error in gawk-3.1.3 with character class

BEGIN {
        IGNORECASE = 1
        if ("a" ~ /[[:alnum:]]/)
                print "OK"
        else
                print "NOT OK"
}