1#!/usr/bin/env perl
2#
3# This file and its contents are supplied under the terms of the
4# Common Development and Distribution License ("CDDL"), version 1.0.
5# You may only use this file in accordance with the terms of version
6# 1.0 of the CDDL.
7#
8# A full copy of the text of the CDDL should have accompanied this
9# source.  A copy is of the CDDL is also available via the Internet
10# at http://www.illumos.org/license/CDDL.
11#
12
13#
14# Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
15# Copyright 2015 John Marino <draco@marino.st>
16#
17
18# This converts MAPPING files to localedef character maps
19# suitable for use with the UTF-8 derived localedef data.
20
21sub ucs_to_utf8
22{
23    my $ucs = shift;
24    my $utf8;
25
26    if ($ucs <= 0x7f) {
27	$utf8 = sprintf("\\x%02X", $ucs).$utf8;
28    } elsif ($ucs <= 0x7ff) {
29	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
30	$ucs >>= 6;
31	$utf8 = sprintf("\\x%02X", $ucs | 0xc0).$utf8;
32
33    } elsif ($ucs <= 0xffff) {
34	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
35	$ucs >>= 6;
36	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
37	$ucs >>= 6;
38	$utf8 = sprintf("\\x%02X", $ucs | 0xe0).$utf8;
39
40    } elsif ($ucs <= 0x1fffff) {
41	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
42	$ucs >>= 6;
43	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
44	$ucs >>= 6;
45	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
46	$ucs >>= 6;
47	$utf8 = sprintf("\\x%02X", $ucs | 0xf0).$utf8;
48
49    } elsif ($ucs <= 0x03ffffff) {
50	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
51	$ucs >>= 6;
52	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
53	$ucs >>= 6;
54	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
55	$ucs >>= 6;
56	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
57	$ucs >>= 6;
58	$utf8 = sprintf("\\x%02X", $ucs | 0xf8).$utf8;
59
60    } else {
61	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
62	$ucs >>= 6;
63	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
64	$ucs >>= 6;
65	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
66	$ucs >>= 6;
67	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
68	$ucs >>= 6;
69	$utf8 = sprintf("\\x%02X", ($ucs & 0x3f) | 0x80).$utf8;
70	$ucs >>= 6;
71	$utf8 = sprintf("\\x%02X", $ucs | 0xf8).$utf8;
72    }
73
74    return ($utf8);
75}
76
77my %unames;
78my %uvalues;
79
80#
81# This is not a general purpose Character Map parser, but its good enough
82# for the stock one supplied with CLDR.
83#
84sub load_utf8_cm
85{
86    my $file = shift;
87
88    open(UTF8, "$file") || die "open";
89
90    while (<UTF8>) {
91	next if (/^#/);
92	next if (/^\s*$/);
93	next if (/^\s*CHARMAP\s*$/);
94	next if (/^\s*END\s*CHARMAP\s*$/);
95	chomp;
96	@words = split /\s+/;
97	$name = $words[0];
98	$utf8val = $words[1];
99
100	if (defined($unames{$utf8val})) {
101	    $unames{$utf8val} .= "\n" .$name;
102	} else {
103	    $unames{$utf8val} = $name;
104	}
105	$uvalues{$name} = $utf8val;
106    }
107    close(UTF8);
108}
109
110my %map;
111
112sub load_map
113{
114    my $file = shift;
115
116    open(MAP, "$file") || die "open";
117
118    while (<MAP>) {
119	next if (/^#/);
120	next if (/^\s*$/);
121	next if (/^0x..\+0x../);
122	next if (/^0x[0-9A-F]{4}\t0x[0-9A-F]{4} 0x[0-9A-F]{4}/);
123	next if (/^0x[0-9A-F]{2}\s+#/);
124	next if (/# ... NO MAPPING .../);
125	chomp;
126	@words = split /\s+/;
127	$utf8 = $words[1];
128	$utf8 =~ s/^\\x[0]*//;
129	$utf8 = ucs_to_utf8(hex($utf8));
130	$val = $words[0];
131	if (defined ($map{$val})) {
132	    $map{$val} .= " ".$utf8;
133	} else {
134	    $map{$val} = $utf8;
135	}
136    }
137}
138
139sub mb_str
140{
141    my $val = shift;
142    my $str = "";
143    $val = hex($val);
144
145    if ($val == 0) {
146	return ("\\x00");
147    }
148    while ($val) {
149	$str = sprintf("\\x%02x", $val & 0xff).$str;
150	$val >>= 8;
151    }
152    return ($str);
153}
154
155$mf = shift(@ARGV);
156$codeset = shift(@ARGV);
157my $max_mb;
158
159load_utf8_cm("etc/final-maps/map.UTF-8");
160load_map($mf);
161
162
163   if ($codeset eq "SJIS")      { $max_mb = 2 }
164elsif ($codeset eq "eucCN")     { $max_mb = 2 }
165elsif ($codeset eq "eucJP")     { $max_mb = 3 }
166elsif ($codeset eq "eucKR")     { $max_mb = 2 }
167elsif ($codeset eq "GBK")       { $max_mb = 2 }
168elsif ($codeset eq "GB2312")    { $max_mb = 2 }
169elsif ($codeset eq "Big5")      { $max_mb = 2 }
170elsif ($codeset eq "Big5HKSCS") { $max_mb = 2 }
171else { $max_mb = 1 };
172print("<code_set_name> \"$codeset\"\n");
173print("<mb_cur_min> 1\n");
174print("<mb_cur_max> $max_mb\n");
175
176print("CHARMAP\n");
177foreach $val (sort (keys (%map))) {
178    #$utf8 = $map{$val};
179    foreach $utf8 (split / /, $map{$val}) {
180	$ref = $unames{$utf8};
181	foreach $name (sort (split /\n/, $ref)) {
182	    print "$name";
183	    my $nt = int((64 - length($name) + 7) / 8);
184	    while ($nt) {
185		print "\t";
186		$nt--;
187	    }
188	    print mb_str($val)."\n";
189	}
190    }
191}
192print "END CHARMAP\n";
193