Finish up (ha!) the Unicode case folding;

enhance regex dumping code.

p4raw-id: //depot/perl@14096

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/unifold.t b/lib/unifold.t
new file mode 100644
index 0000000000..d4e819ecc7
--- /dev/null
+++ b/lib/unifold.t
@@ -0,0 +1,45 @@
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+use File::Spec;
+
+my $CF = File::Spec->catfile(File::Spec->catdir(File::Spec->updir,
+					       "lib", "unicore"),
+			    "CaseFold.txt");
+
+if (open(CF, $CF)) {
+    my @CF;
+
+    while (<CF>) {
+        if (/^([0-9A-F]+); ([CFSI]); ((?:[0-9A-F]+)(?: [0-9A-F]+)*); \# (.+)/) {
+            next if $2 eq 'S'; # we are going for 'F'ull case folding
+	    push @CF, [$1, $2, $3, $4];
+	}
+    }
+
+    die qq[$0: failed to find casefoldings from "$CF"\n] unless @CF;
+
+    print "1..", scalar @CF, "\n";
+
+    my $i = 0;
+    for my $cf (@CF) {
+	my ($code, $status, $mapping, $name) = @$cf;
+	$i++;
+	my $a = pack("U0U*", hex $code);
+	my $b = pack("U0U*", map { hex } split " ", $mapping);
+	my $t0 = ":$a:" =~ /:$a:/   ?  1 : 0;
+	my $t1 = ":$a:" =~ /:$a:/i  ?  1 : 0;
+	my $t2 = ":$a:" =~ /:[$a]:/i ? 1 : 0;
+	my $t3 = ":$a:" =~ /:$b:/i   ? 1 : 0;
+	my $t4 = ":$a:" =~ /:[$b]:/i ? 1 : 0;
+	my $t5 = ":$b:" =~ /:$a:/i   ? 1 : 0;
+	my $t6 = ":$b:" =~ /:[$a]:/i ? 1 : 0;
+	print $t0 && $t1 && $t2 && $t3 && $t4 && $t5 && $t6 ?
+	    "ok $i \# - $code - $name - $mapping - - $status\n" :
+	    "not ok $i \# - $code - $name - $mapping - $t0 $t1 $t2 $t3 $t4 $t5 $t6 - $status\n";
+    }
+} else {
+    die qq[$0: failed to open "$CF": $!\n];
+}