1 files changed, 75 insertions, 0 deletions
diff --git a/contrib/less/mkutable b/contrib/less/mkutable
new file mode 100755
index 0000000..803335b
--- /dev/null
+++ b/contrib/less/mkutable
@@ -0,0 +1,75 @@
+#! /usr/bin/perl
+use strict;
+
+my $USAGE = <<__EOF__;
+   usage: mkutable [-n] [-f#] type... [--] [<] UnicodeData.txt
+          -n = take non-matching types
+	  -f = zero-based type field (default 2)
+__EOF__
+
+use vars qw( $opt_f $opt_n );
+use Getopt::Std;
+my $type_field = 2;
+
+exit (main() ? 1 : 0);
+
+sub main {
+    my $date = `date`;
+    chomp $date;
+    my $args = join ' ', @ARGV;
+    my $header = "/* Generated by \"$0 $args\" on $date */\n";
+
+    die $USAGE if not getopts('f:n');
+    $type_field = $opt_f if $opt_f;
+    my %types;
+    my $arg;
+    while ($arg = shift @ARGV) {
+        last if $arg eq '--';
+        $types{$arg} = 1;
+    }
+    my %out = ( 'types' => \%types );
+    my $last_code = 0;
+
+    print $header;
+    while (<>) {
+        chomp;
+        s/#.*//;
+        my @fields = split /;/;
+        next if not @fields;
+        my $code = hex $fields[0];
+        my $type = $fields[$type_field];
+        $type =~ s/\s//g;
+        while (++$last_code < $code) {
+            output(\%out, $last_code, '?');
+        }
+        output(\%out, $code, $type);
+    }
+    output(\%out, $last_code+1, '?');
+}
+
+sub output {
+    my ($out, $code, $type) = @_;
+    my $match = ${${$out}{types}}{$type};
+    my $type_change = (not $$out{start_type} or $type ne $$out{start_type});
+    $match = not $match if $opt_n;
+    if ($match and (not $$out{in_run} or $type_change)) {
+        end_run($out, $code-1);
+        start_run($out, $code, $type);
+    } elsif (not $match and $$out{in_run}) {
+        end_run($out, $code-1);
+    }
+}
+
+sub start_run {
+    my ($out, $code, $type) = @_;
+    $$out{start_code} = $code;
+    $$out{start_type} = $type;
+    $$out{in_run} = 1;
+}
+
+sub end_run {
+    my ($out, $code) = @_;
+    return if not $$out{in_run};
+    printf "\t{ 0x%04x, 0x%04x }, /* %s */\n", $$out{start_code}, $code, $$out{start_type};
+    $$out{in_run} = 0;
+}