5 use open IO => ':utf8';
9 $header{content_type} = 'text/html; charset=utf-8';
11 :><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
12 "http://www.w3.org/TR/html4/loose.dtd">
16 <meta http-equiv="content-type" content="<:= $header{content_type} :>">
17 <title>charset cheat sheet</title>
18 <link rel="stylesheet" type="text/css" media="all" href="/base.css">
22 <h1>Character encoding</h1>
25 my $diinfo = do 'digraphs.inc.pl';
26 my %di = map { $diinfo->{$_}->[0] => $_ } grep { ref $diinfo->{$_} }
29 use Encode qw(decode resolve_alias);
30 # generate character table(s)
31 # (~16x faster than decoding in loop;
32 # substr strings is twice as fast as splitting to an array)
34 # default => [qw(unicode utf-8 iso-8859-1 cp437 -cp1252- --iso-8859-15- -koi8-f)],
35 default => [qw(unicode- utf-8 iso-8859-1 -cp1252- --iso-8859-15- cp437 -cp850)],
36 0 => [qw(cp437 cp863)],
37 1 => [qw(iso-8859-1 cp1252 MacRoman cp850)],
38 2 => [qw(iso-8859-2 cp1250 cp852 MacCentralEurRoman MacCroatian MacRumanian)],
39 5 => [qw(koi8-f iso-8859-5 cp1251 MacCyrillic cp855 cp866)],
40 7 => [qw(iso-8859-7 cp1253 MacGreek cp737 cp869)],
41 8 => [qw(iso-8859-8 cp1255 MacHebrew cp862)],
45 my %row = (offset => 0);
47 if ($input =~ s/^--//) {
48 $row{offset} = $endpoint > 160 ? 160 : 48;
50 elsif ($input =~ s/^-//) {
51 $row{offset} = $endpoint > 128 ? 128 : 32;
53 if ($input =~ s/-$//) {
54 $endpoint = $row{offset} ? $row{offset} < 160 ? 159 : 191 : 127;
57 if ($input =~ /^U([0-9a-f]+)(?:-([0-9a-f]+))?/) {
58 my $start = hex($1) << ($2 ? 4 : 8);
59 my $end = $2 ? hex($2) << 4 : $start + 240;
60 $row{table} = join '', map { chr } $start .. $end+15;
61 utf8::upgrade($row{table}); # prevent latin1 output
62 $row{set} = sprintf 'Unicode block U+%02Xxx', $start >> 8;
64 elsif ($input eq 'U') {
65 $row{table} = ' ' x 512;
66 $row{set} = 'Unicode planes';
67 $row{cell} = do 'charset-ucplanes.inc.pl';
69 elsif ($row{set} = resolve_alias($input)) {
70 if ($row{set} eq 'Internal') {
71 $row{table} = ' ' x ($endpoint < 255 ? 640 : 4096);
72 $row{set} = 'Unicode BMP';
73 $row{cell} = do 'charset-unicode.inc.pl';
75 elsif ($row{set} eq 'utf-8-strict') {
78 $row{cell} = do 'charset-utf8.inc.pl';
81 $row{table} = decode($row{set}, pack 'C*', $row{offset} .. $endpoint);
85 print "<p>Encoding $input unknown</p>\n";
92 } map { defined $ALIAS{$_} ? @{ $ALIAS{$_} } : $_ }
93 $ENV{PATH_INFO} =~ /\w/ ? split(m{[/+\s]}, $ENV{PATH_INFO}) : 'default';
94 my $NOCHAR = chr 0xFFFD;
96 for my $cp437 (grep {$request[$_]->{set} eq 'cp437'} 0 .. $#request) {
97 substr($request[$cp437]->{table}, 237, 1) = pack 'U*', 0x3D5; # phi sign
98 substr($request[$cp437]->{table}, 0, 32) = pack 'U*', map {hex} qw(
99 2007 263A 263B 2665 2666 2663 2660 2022 25D8 25CB 25D9 2642 2640 266A 266B 263C
100 25BA 25C4 2195 203C 00B6 00A7 25AC 21A8 2191 2193 2192 2190 221F 2194 25B2 25BC
114 my @nibble = (0..9, 'A'..'F');
115 for my $row (@request) {
116 printf '<li><table class="glyphs%s">', !$row->{cell} && ' charmap';
117 printf '<caption>%s</caption>', $row->{set};
119 for my $section (qw{thead}) {
120 print "<$section><tr><th>↱";
121 print '<th>', $_ for @nibble;
125 for my $msb (0 .. (length($row->{table}) || 256) - 1 >> 4) {
126 printf '<tr><th>%X', $msb + ($row->{offset} >> 4);
127 for my $lsb (0 .. $#nibble) {
129 print $row->{cell}->(($msb<<4) + $lsb);
133 my $glyph = substr $row->{table}, ($msb<<4) + $lsb, 1;
134 if ($glyph eq $NOCHAR) {
139 my $info = [ord $glyph];
140 if (defined (my $mnem = $di{ord $glyph})) {
141 $info = $diinfo->{$mnem};
144 require Unicode::UCD;
145 my $fullinfo = Unicode::UCD::charinfo(ord $glyph);
146 $info = [@$fullinfo{qw/code name category script string/}] if $fullinfo;
148 my ($codepoint, $name, $prop, $script, $string) = @$info;
150 $glyph = quote($string || $glyph);
151 my $desc = sprintf 'U+%04X%s', $codepoint, $name && " ($name)";
152 my @class = ('X', grep {$_} $prop, $script);
154 $glyph = "<span>$glyph</span>" if $prop eq 'Zs';
156 printf "\n".'<td class="%s" title="%s">%s',
157 join(' ', @class), quote($desc), $glyph;
170 <table class="glyphs"><tr>
171 <td class="X Cc">control
172 <td class="X Zs"><span>whitespace</span>
173 <td class="X Mn">diacritic<table class="glyphs"><tr>
174 <td class="X Sk">letter
176 <td class="X Po">punctuation<table class="glyphs"><tr>
177 <td class="X Pf">quote
179 <td class="X So">symbol<table class="glyphs"><tr>
180 <td class="X Sm">math
181 <td class="X Sc">currency
183 <td class="X No">numeric
184 <td class="X Greek">greek<table class="glyphs"><tr>
185 <td class="X Latin">latin
186 <td class="X Cyrillic">cyrillic
188 <td class="X Aramaic">aramaic<table class="glyphs"><tr>
189 <td class="X Brahmic">brahmic
190 <td class="X Arabic">arabic
192 <td class="X Syllabic">syllabic<table class="glyphs"><tr>
193 <td class="X African">african
194 <td class="X Hiragana">japanese
195 <td class="X Han">cjk
196 <td class="X Bopomofo">chinese
198 <td class="X Alpha">alphabetic
201 <table class="glyphs"><tr>
202 <td class="X">unicode 5.0
203 <td class="X Xr">proposed
204 <td class="X Xd">deprecated
205 <td class="">unassigned
206 <td class="X Xi">invalid
211 <a href="/" rel="home">sheet.shiar.nl</a>/charset.<a href="/source/charset.plp" rel="code">plp</a>
212 <a href="http://git.shiar.nl/sheet.git" rel="vcs-git" title="Git repository"><:= $VERSION :></a>
213 created by <a href="http://shiar.nl/" rel="author">Shiar</a> •
214 <a title="Licensed under the GNU Affero General Public License, version 3" rel="copyright"
215 href="http://www.fsf.org/licensing/licenses/agpl-3.0.html">AGPLv3</a>