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diff --git a/language/chinese/CJK/cjk-4.8.5/utils/subfonts/uni2sfd.pl b/language/chinese/CJK/cjk-4.8.5/utils/subfonts/uni2sfd.pl
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index 0000000000..fc89bf7017
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+++ b/language/chinese/CJK/cjk-4.8.5/utils/subfonts/uni2sfd.pl
@@ -0,0 +1,312 @@
+#! /usr/bin/perl -w
+#
+# This script creates virtual subfonts in a font encoding given by a subfont
+# definition file, based on Unicode subfonts.
+#
+# As prerequisites, it needs the programs `tftopl' and `vptovf' which must
+# be in the path.
+#
+# Call the script as
+#
+# perl uni2sfd.pl uni-namestem sfd-file namestem codingscheme
+#
+# `uni-namestem' is the namestem of the Unicode subfonts; `uni2sfd.pl'
+# appends the Unicode suffixes and reads the corresponding TFM files.
+# `sfd-file' is the subfont definition file which maps Unicode input
+# characters to the target subfont scheme using `namestem' as the namestem.
+# `codingscheme' gives the value for the CODINGSCHEME parameter in the
+# VF files (always converted to uppercase).
+#
+# Example:
+#
+# perl uni2sfd.pl bsmiu UBig5.sfd bsmilp cjkbig5
+#
+# A collection of useful subfont definition files for CJK fonts can be found
+# in the ttf2pk package.
+
+# Copyright (C) 1994-2021 Werner Lemberg <wl@gnu.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program in doc/COPYING; if not, write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301 USA
+
+use strict;
+
+my $prog = $0;
+$prog =~ s@.*/@@;
+
+if ($#ARGV != 3) {
+ die("usage: $prog uni-namestem sfd-file namestem codingscheme\n");
+}
+
+my $uninamestem = $ARGV[0];
+my $sfdfile = $ARGV[1];
+my $namestem = $ARGV[2];
+my $codingscheme = $ARGV[3];
+
+
+# Read subfont definition file.
+
+my %sfd;
+my @subfonts;
+
+read_sfdfile($sfdfile, \%sfd, \@subfonts);
+
+
+# Read TFM files.
+
+my @unimetrics;
+
+foreach my $sub (0 .. 0xFF) {
+ my $suffix = sprintf("%02x", $sub);
+ my $tfmname = "$uninamestem$suffix.tfm";
+
+ if (-f $tfmname) {
+ read_tfmfile($tfmname, \@unimetrics, $suffix);
+ }
+}
+
+
+# Write VPL files.
+
+foreach my $sub (@subfonts) {
+ my @entries;
+
+ foreach my $i (0 .. 255) {
+ if (defined ($sfd{"$sub $i"})) {
+ my $index = $sfd{"$sub $i"};
+ if (defined ($unimetrics[$index])) {
+ push(@entries, "$i $index $unimetrics[$index]");
+ }
+ }
+ }
+
+ if ($#entries >= 0) {
+ write_vplfile("$namestem$sub.vpl", \@entries);
+ }
+}
+
+
+# Generate VF and TFM files, then remove the VPL files.
+
+my @vplfiles = glob("$namestem*.vpl");
+foreach my $vplfile (@vplfiles) {
+ print("Processing \`$vplfile'...\n");
+ my $arg = "vptovf $vplfile";
+ system($arg) == 0
+ || die("$prog: calling \`$arg' failed: $?\n");
+ print("Removing \`$vplfile'...\n");
+ unlink($vplfile);
+}
+
+
+# Read an SFD file.
+#
+# $1: Name of the SFD file.
+# $2: Reference to the target hash file, mapping from the character code
+# to the subfont index. The format of the key value is the
+# concatenation of the subfont suffix, a space, and the index.
+# $3: Reference to a target array which holds the subfont suffixes.
+
+sub read_sfdfile {
+ my ($sfdfile, $sfdhash, $sfdarray) = @_;
+
+ print("Reading subfont definition file \`$sfdfile'...\n");
+
+ open(SFD, $sfdfile)
+ || die("$prog: can't open \`$sfdfile': $!\n");
+
+ my $line;
+ my $continuation = 0;
+ while (<SFD>) {
+ chop;
+
+ next if /^\s*$/;
+ next if /^#/;
+
+ if ($continuation) {
+ $line .= $_;
+ }
+ else {
+ $line = $_;
+ }
+ $continuation = 0;
+
+ if ($line =~ s/\\$//) {
+ $continuation = 1;
+ next;
+ }
+
+ $_ = $line;
+ my @field = split(" ");
+
+ my $suffix = $field[0];
+ push(@{$sfdarray}, $suffix);
+
+ shift(@field);
+ my $index = 0;
+
+ while (@field) {
+ if ($field[0] =~ /(.*):$/) {
+ $index = $1;
+ }
+ elsif ($field[0] =~ /(.*)_(.*)/) {
+ my $start = $1;
+ my $end = $2;
+ $start = oct($start) if ($start =~ /^0/);
+ $end = oct($end) if ($end =~ /^0/);
+ foreach my $i ($start .. $end) {
+ $sfdhash->{"$suffix $index"} = $i;
+ $index++;
+ }
+ }
+ else {
+ my $value = $field[0];
+ $value = oct($value) if ($value =~ /^0/);
+ $sfdhash->{"$suffix $index"} = $value;
+ $index++;
+ }
+ shift(@field);
+ }
+ }
+ close(SFD);
+}
+
+
+# Read TFM file.
+#
+# $1: Name of the TFM file.
+# $2: Reference to the target array holding metric information in the form
+# `<width> <heigth> <depth>'.
+# $3: Subfont suffix.
+
+sub read_tfmfile {
+ my ($tfmfile, $unicarray, $suffix) = @_;
+
+ print("Processing metrics file \`$tfmfile'...\n");
+ my $arg = "tftopl $tfmfile > $tfmfile.pl";
+ system($arg) == 0
+ || die("$prog: calling \`$arg' failed: $?\n");
+
+ print("Reading property list file \`$tfmfile.pl'...\n");
+ open(PL, "$tfmfile.pl")
+ || die("$prog: can't open \`$tfmfile.pl': $!\n");
+
+ while (<PL>) {
+ my $idx;
+ if (/^\(CHARACTER O (\d+)/) {
+ $idx = oct($1);
+ }
+ elsif (/^\(CHARACTER C (.)/) {
+ $idx = ord($1);
+ }
+ else {
+ next;
+ }
+ $idx += hex($suffix) * 256;
+
+ my $wd = "0";
+ my $ht = "0";
+ my $dp = "0";
+
+ $_ = <PL>;
+ if (/\(CHARWD R (.*)\)/) {
+ $wd = "$1";
+ $_ = <PL>;
+ }
+ if (/\(CHARHT R (.*)\)/) {
+ $ht = "$1";
+ $_ = <PL>;
+ }
+ if (/\(CHARDP R (.*)\)/) {
+ $dp = "$1";
+ }
+
+ $unicarray->[$idx] = "$wd $ht $dp";
+ }
+ close(PL);
+ print("Removing \`$tfmfile.pl'...\n");
+ unlink("$tfmfile.pl");
+}
+
+
+# Write VPL file.
+#
+# $1: Name of the VPL file.
+# $2: Reference to list which holds the font entries. An entry has the
+# form `<index> <Unicode> <width> <height> <depth>'.
+
+sub write_vplfile {
+ my ($vplfile, $glypharray) = @_;
+
+ my %subfonts;
+ my $subcount = 0;
+
+ foreach my $entry (@{$glypharray}) {
+ my @field = split(" ", $entry);
+ my $subfont = int($field[1] / 256);
+ if (!defined ($subfonts{$subfont})) {
+ $subfonts{$subfont} = $subcount;
+ $subcount++;
+ }
+ }
+
+ print("Writing virtual property list file \`$vplfile'...\n");
+
+ open(VPL, ">", $vplfile)
+ || die("$prog: can't open \`$vplfile': $!\n");
+ my $oldfh = select(VPL);
+
+ print("(VTITLE Created by \`$prog " . join(" ", @ARGV) . "')\n");
+ print("(FAMILY TEX-\U$namestem\E)\n");
+ print("(CODINGSCHEME \U$codingscheme\E)\n");
+ print("(FONTDIMEN\n");
+ print(" (SPACE R 0.5)\n");
+ print(" (XHEIGHT R 0.4)\n");
+ print(" (QUAD R 1)\n");
+ print(" )\n");
+
+ foreach my $subfont
+ (sort { $subfonts{$a} <=> $subfonts{$b} } keys %subfonts) {
+ print("(MAPFONT D $subfonts{$subfont}\n");
+ print(" (FONTNAME $uninamestem" . sprintf("%02x", $subfont) . ")\n");
+ print(" )\n");
+ }
+
+ foreach my $entry (@{$glypharray}) {
+ my @field = split(" ", $entry);
+ my $index = $field[0];
+ my $subnumber = $subfonts{int($field[1] / 256)};
+ my $subindex = $field[1] % 256;
+ my $width = $field[2];
+ my $height = $field[3];
+ my $depth = $field[4];
+
+ print("(CHARACTER D $index\n");
+ print(" (CHARWD R $width)\n");
+ print(" (CHARHT R $height)\n");
+ print(" (CHARDP R $depth)\n");
+ print(" (MAP\n");
+ print(" (SELECTFONT D $subnumber)\n");
+ print(" (SETCHAR D $subindex)\n");
+ print(" )\n");
+ print(" )\n");
+ }
+
+ close(VPL);
+ select($oldfh);
+}
+
+
+# eof