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
112 my @nibble = (0..9, 'A'..'F');
113 for my $row (@request) {
114 printf '<div class="section"><table class="glyphs%s">', !$row->{cell} && ' charmap';
115 printf '<caption>%s</caption>', $row->{set};
117 for my $section (qw{thead}) {
118 print "<$section><tr><th>↱";
119 print '<th>', $_ for @nibble;
123 for my $msb (0 .. (length($row->{table}) || 256) - 1 >> 4) {
124 printf '<tr><th>%X', $msb + ($row->{offset} >> 4);
125 for my $lsb (0 .. $#nibble) {
127 print $row->{cell}->(($msb<<4) + $lsb);
131 my $glyph = substr $row->{table}, ($msb<<4) + $lsb, 1;
132 if ($glyph eq $NOCHAR) {
137 my $info = [ord $glyph];
138 if (defined (my $mnem = $di{ord $glyph})) {
139 $info = $diinfo->{$mnem};
142 require Unicode::UCD;
143 my $fullinfo = Unicode::UCD::charinfo(ord $glyph);
144 $info = [@$fullinfo{qw/code name category script string/}] if $fullinfo;
146 my ($codepoint, $name, $prop, $script, $string) = @$info;
148 $glyph = quote($string || $glyph);
149 my $desc = sprintf 'U+%04X%s', $codepoint, $name && " ($name)";
150 my @class = ('X', grep {$_} $prop, $script);
152 $glyph = "<span>$glyph</span>" if $prop eq 'Zs';
154 printf "\n".'<td class="%s" title="%s">%s',
155 join(' ', @class), quote($desc), $glyph;
159 print "</table></div>\n";
166 <table class="glyphs"><tr>
167 <td class="X Cc">control
168 <td class="X Zs"><span>whitespace</span>
169 <td class="X Mn">diacritic<table class="glyphs"><tr>
170 <td class="X Sk">letter
172 <td class="X Po">punctuation<table class="glyphs"><tr>
173 <td class="X Pf">quote
175 <td class="X So">symbol<table class="glyphs"><tr>
176 <td class="X Sm">math
177 <td class="X Sc">currency
179 <td class="X No">numeric
180 <td class="X Greek">greek<table class="glyphs"><tr>
181 <td class="X Latin">latin
182 <td class="X Cyrillic">cyrillic
184 <td class="X Aramaic">aramaic<table class="glyphs"><tr>
185 <td class="X Brahmic">brahmic
186 <td class="X Arabic">arabic
188 <td class="X Syllabic">syllabic<table class="glyphs"><tr>
189 <td class="X African">african
190 <td class="X Hiragana">japanese
191 <td class="X Han">cjk
192 <td class="X Bopomofo">chinese
194 <td class="X Alpha">alphabetic
197 <table class="glyphs"><tr>
198 <td class="X">unicode 5.0
199 <td class="X Xr">proposed
200 <td class="X Xd">deprecated
201 <td class="">unassigned
202 <td class="X Xi">invalid
207 <a href="/" rel="home">sheet.shiar.nl</a>/charset.<a href="/source/charset.plp"
208 rel="code" title="Written in Perl">plp</a>
209 <a href="http://git.shiar.nl/sheet.git/history/HEAD:/charset.plp"
210 rel="vcs-git" title="Git repository"><:= $VERSION :></a>
211 created by <a href="http://shiar.nl/" rel="author">Shiar</a> •
212 <a href="http://www.fsf.org/licensing/licenses/agpl-3.0.html" rel="copyright"
213 title="Licensed under the GNU Affero General Public License, version 3">AGPLv3</a>