<(common.inc.plp)><:
-use 5.010;
+use List::Util qw(sum max first);
+no if $] >= 5.018, warnings => 'experimental::smartmatch';
Html({
title => 'browser compatibility cheat sheet',
- version => 'v1.0',
- description =>
- "caniuse.",
- keywords => [qw'html css browser feature'],
- stylesheet => [qw'light dark circus mono red'],
- data => ['caniuse.js'],
+ version => '1.5',
+ description => [
+ "Compatibility table of new web features (HTML5, CSS3, SVG, Javascript)",
+ "comparing support and usage share for all popular browser versions.",
+ ],
+ keywords => [qw'
+ web browser support compatibility usage matrix available feature
+ html html5 css css3 svg javascript js dom mobile
+ ie internet explorer firefox chrome safari webkit opera
+ '],
+ stylesheet => [qw'circus dark mono red light'],
+ data => ['data/browser/support.inc.pl'],
});
-:>
-<h1>Browser compatibility</h1>
-
-<p>Alternate view of Fyrd's <a href="http://caniuse.com/">when can I use...</a> site.</p>
+say "<h1>Browser compatibility</h1>\n";
-<:
-use JSON;
-use File::Slurp 'read_file';
-my $source = read_file('caniuse.js');
-for ($source) { # cleanup
- # convert seperate variables to hash keys
- s/\A/{/;
- s/^caniuse\.(\w+) = /"$1":/gm;
- s/;$/,/gm;
- s/,\s*\Z/\n}/;
- # fractions not supported by barekey
- s/(?<=[,{]) (\d*\.\d) (?=:')/"$1"/gx;
- # escapes not supported in singlequote
- s{'((?:[^\\']+|\\.)*)'}{
- my $_ = $1;
- s/"/\\"/g;
- s/\\'/'/g;
- qq("$_");
- }ge;
-}
-my $caniuse = from_json($source, {
-# allow_singlequote => 1,
- allow_barekey => 1,
-});
+my $caniuse = do 'data/browser/support.inc.pl' or die $@ || $!;
+$_->{verrelease} = {
+ # mark last three (future) versions as unreleased, ensure current isn't
+ map {
+ $_->[-1] => 0, $_->[-2] => 0, $_->[-3] => 0,
+ $_->[-4] => undef,
+ } $_->{versions}
+} for values %{ $caniuse->{agents} };
my %CSTATS = (
- n => 'di-b',
- y => 'di-aa',
- a => 'di-d',
- j => 'di-prop',
- p => 'di-prop',
- 'y x' => 'di-a',
+ 'n' => 'l1',
+ 'n d' => 'l2',
+ 'n x d' => 'l2 ex',
+ 'p d' => 'l2',
+ 'a d' => 'l2',
+ 'y' => 'l5',
+ 'y #' => 'l4',
+ 'y x' => 'l5 ex',
+ 'y x #' => 'l4 ex',
+ 'a' => 'l3',
+ 'a x' => 'l3 ex',
+ 'p' => 'l2',
+ 'u' => 'l0',
+ 'u d' => 'l2',
+);
+my %DSTATS = (
+ u => 'unknown',
+ n => 'unsupported',
+ p => 'plugin required',
+ a => 'partial',
+ y => 'supported',
+ d => '(disabled by default)',
+ x => sub {
+ join(' ',
+ 'with prefix',
+ map {"-$_-"}
+ ($caniuse->{agents}->{$_[0]}->{prefix_exceptions} // {})->{$_[1]}
+ // $caniuse->{agents}->{$_[0]}->{prefix} // (),
+ );
+ },
+);
+my %PSTATS = ( # score percentage
+ y => 1, 'y x' => .9,
+ a => .5, 'a x' => .5, 'a d' => .2,
+ p => .2, 'p d' => .1,
+ n => 0, 'n d' => .2, 'n x d' => .2,
+ u => 0,
);
my %CSTATUS = (
- unoff => 'di-rare', # unofficial
- wd => 'di-b', # draft
- pr => 'di-prop', # proposed
- cr => 'di-d', # candidate
- rec => 'di-a', # recommendation
- ietf => 'di-aa', # standard
+ unoff => 'l1', # unofficial
+ wd => 'l2', # draft
+ cr => 'l3', # candidate
+ pr => 'l3', # proposed
+ rec => 'l5', # recommendation
+ ls => 'l4', # whatwg
+ ietf => 'l0', # standard
+ other => 'l0', # non-w3
);
-my @browsers = qw(trident gecko webkit_saf presto);
my %versions;
-if (my ($somerow) = values %{ $caniuse->{data} }) {
- while (my ($browser, $row) = each %{ $somerow->{stats} }) {
- $versions{$browser} = [ sort { paddedver($a) cmp paddedver($b) } keys %$row ];
+while (my ($browser, $row) = each %{ $caniuse->{agents} }) {
+ $versions{$browser} = [
+ sort { paddedver($a) cmp paddedver($b) } grep { defined }
+ @{ $row->{versions} }
+ ];
+}
+
+my $ref = showlink('Can I use', 'https://caniuse.com/');
+$ref =~ s/(?=>)/ title="updated $_"/
+ for map { s/[\sT].*//r } $caniuse->{-date} || ();
+$ref = "Fyrd's $ref page";
+say '<p id="intro">Alternate rendition of '.$ref;
+
+my ($canihas, $usage);
+my $minusage = $get{threshold} // 1;
+given ($get{usage} // 'wm') {
+ when (!$_) {
+ # none
}
+ when (!m{ \A [a-z]\w+ (?:/\d[\d-]*\d)? \z }x) {
+ Alert([
+ 'Invalid browser usage data request',
+ 'Identifier must be alphanumeric name or <q>0</q>.',
+ ]);
+ }
+ $canihas = do "data/browser/usage-$_.inc.pl" or do {
+ Alert('Browser usage data not found', $@ || $!);
+ break;
+ };
+ $usage = $_;
+ my $ref = $canihas->{-title} || 'unknown';
+ $ref = showlink($ref, $_)
+ for $canihas->{-site} || $canihas->{-source} || ();
+ $ref =~ s/(?=>)/ title="updated $_"/ for $canihas->{-date} || ();
+ print "\nwith $ref browser usage statistics";
}
-print '<table class="glyphs dimap">';
-print '<col>' x 2;
+my @browsers;
+if ($usage) { # first() does not work inside given >:(
+ # adapt version usage to actual support data
+ my %engineuse; # prefix => usage sum
+ for my $browser (keys %versions) {
+ my $row = $canihas->{$browser} // {};
+ my $verlist = $versions{$browser} or next;
+ if ($minusage and sum(values %$row) < $minusage) {
+ delete $versions{$browser};
+ next;
+ }
+ my %supported = map { $_ => 1 } @$verlist;
+
+ # cascade unknown versions
+ $row->{$_} //= undef for @$verlist; # ensure stable keys during iteration
+ while (my ($version, $usage) = each %$row) {
+ next if defined $supported{$version};
+ my $next = first { paddedver($_) ge paddedver($version) } @$verlist
+ or warn("No fallback found for $browser v$version; $usage% ignored"), next;
+ $row->{$next} += $usage;
+ $row->{$version} = 0; # balance browser total
+ }
+
+ # build row list for each version
+ if ($minusage) {
+ my @vershown; # $verlist replacement
+ my ($rowusage, @verrow) = (0); # replacement row tracking
+ for (@$verlist) {
+ push @verrow, $_; # queue each version
+ if (($rowusage += $row->{$_}) >= $minusage) {
+ push @vershown, [@verrow]; # add row
+ ($rowusage, @verrow) = (0); # reset row tracking
+ }
+ }
+ push @vershown, \@verrow if @verrow; # always add latest
+ @$verlist = @vershown;
+ }
+ else {
+ @$verlist = map { [$_] } @$verlist;
+ }
+
+ # reusable aggregates (grouped by prefix (engine) and browser)
+ $engineuse{ $caniuse->{agents}->{$browser}->{prefix} } +=
+ $row->{-total} = sum(values %$row);
+ }
+
+ # order browser columns by usage grouped by engine
+ @browsers = sort {
+ $engineuse{ $caniuse->{agents}->{$b}->{prefix} } <=>
+ $engineuse{ $caniuse->{agents}->{$a}->{prefix} }
+ ||
+ $canihas->{$b}->{-total} <=> $canihas->{$a}->{-total}
+ } keys %versions;
+}
+else {
+ # order browser columns by name grouped by engine
+ @{$_} = map { [$_] } @{$_} for values %versions;
+ @browsers = sort {
+ $caniuse->{agents}->{$b}->{prefix} cmp
+ $caniuse->{agents}->{$a}->{prefix}
+ ||
+ $a cmp $b
+ } keys %versions;
+}
+:>.
+</p>
+
+<:
+$canihas ||= {
+ map {
+ $_ => +{
+ map {
+ my $zero = $#$_ - 2; # baseline index
+ ($_->[$zero - 2] => .5), # past
+ ($_->[$zero - 1] => 10 ), # previous
+ ($_->[$zero + 2] => 0 ), # future
+ ($_->[$zero + 1] => .5), # next
+ ($_->[$zero ] => 30 ), # current
+ } $caniuse->{agents}->{$_}->{versions}
+ }
+ } @browsers
+}; # fallback hash based on release semantics
+
+# score multiplier for percentage of all browser versions
+my $usagepct = 99.99 / sum(
+ map { $_->{-total} // values %{$_} } values %{$canihas}
+);
+
+$_->{usage} = featurescore($_->{stats}) * $usagepct
+ for values %{ $caniuse->{data} };
+
+print '<table class="mapped">';
+print '<col span="3">'; # should match first thead row
printf '<colgroup span="%d">', scalar @{ $versions{$_} } for @browsers;
-print "\n";
+say '</colgroup><col>';
-print '<thead><tr>';
-print "<th>$_" for qw(feature status);
-printf '<th colspan="%d">%s',
- scalar @{ $versions{$_} }, $caniuse->{agents}->{$_}->{browser}
- for @browsers;
+my $header = join('',
+ '<tr>',
+ '<th colspan="3" rowspan="2">feature',
+ (map {
+ my $name = $caniuse->{agents}->{$_}->{browser};
+ sprintf('<th colspan="%d" class="%s" title="%s">%s',
+ scalar @{ $versions{$_} },
+ join(' ', map {"b-a-$_"} grep {$_}
+ $_, @{ $caniuse->{agents}->{$_} }{'prefix', 'type'},
+ ),
+ join(' ',
+ sprintf('%.1f%%', $canihas->{$_}->{-total} * $usagepct),
+ $name,
+ ),
+ do {
+ length $name <= (3 * @{ $versions{$_} }) ? $name
+ : $caniuse->{agents}->{$_}->{abbr};
+ },
+ )
+ } @browsers),
+ '<th rowspan="2">%',
+);
+print '<thead>', $header;
# preceding row without any colspan to work around gecko bug
-print '<tr>';
-print '<td>' x $_ for 2, map { scalar @{ $versions{$_} } } @browsers;
-print "</thead>\n";
+print "\n<tr>";
+for my $browser (@browsers) {
+ for my $span (@{ $versions{$browser} }) {
+ my $lastver = first {
+ !defined $caniuse->{agents}->{$browser}->{verrelease}->{$_} # stable
+ } reverse @{$span};
+ printf('<td title="%s"%s>%s',
+ join(' ',
+ sprintf('%.1f%%', sum(@{ $canihas->{$browser} }{ @{$span} }) * $usagepct),
+ 'version ' . showversions(@{$span}, undef),
+ $span->[-1] eq $lastver ? () : '(development)',
+ ),
+ !defined $lastver && ' class="ex"',
+ showversions($lastver // $span->[0]),
+ );
+ }
+}
+say '</thead>';
+say '<tfoot>', $header;
+{
+ # prefix indicates browser family; count adjacent families
+ my (@families, %familycount);
+ for my $browser (@browsers) {
+ my $family = $caniuse->{agents}->{$browser}->{prefix};
+ push @families, $family unless $familycount{$family};
+ $familycount{$family} += @{ $versions{$browser} };
+ }
+
+ print "\n", '<tr class="cat">';
+ printf '<th colspan="%d">%s', $familycount{$_}, $_ for @families;
+}
+say '</tfoot>';
-sub featurerank {
+sub featurescore {
# relative amount of support for given feature
- state $statspts = { y=>10, 'y x'=>9, a=>5, j=>2, p=>1 };
- my ($id) = @_;
my $rank = 0;
- if (my $row = $caniuse->{data}->{$id}->{stats}) {
+ if (my $row = shift) {
+ if ($canihas) {
+ while (my ($browser, $versions) = each %$row) {
+ ref $versions eq 'HASH' or next;
+ while (my ($version, $status) = each %$versions) {
+ $status =~ s/\h\#\d+//g;
+ $rank += ($canihas->{$browser}->{$version} || .001) * $PSTATS{$status};
+ }
+ }
+ return $rank;
+ }
+
while (my ($browser, $vercols) = each %versions) {
my $div = 0; # multiplier exponent (decreased to lower value)
my @vers = map { $row->{$browser}->{$_} } @$vercols;
}
splice @vers, -1, 0, @future; # move ahead to decrease precedence
}
- $rank += $statspts->{$_} * 2**($div--) for reverse @vers;
+ $rank += $PSTATS{$_} * 2**($div--) for reverse @vers;
}
}
return $rank;
}
-for my $id (sort {
- featurerank($b) <=> featurerank($a)
-} keys %{ $caniuse->{data} }) {
+sub formatnotes {
+ my @html = @_;
+ for (@html) {
+ s/\r\n?/\n/g; # windows returns
+ s/\h* $//gmx; # trailing whitespace
+ s/(?<= [^.\n]) $/./gmx; # consistently end each line by a period
+ Entity($_);
+ s{ ` ([^`]*) ` }{<code>$1</code>}gx;
+ s{ \[ ([^]]*) \] \( ([^)]*) \) }{<a href="$2">$1</a>}gx;
+ }
+ return @html;
+}
+
+sub notestotitle {
+ my @notes = @_;
+ for (@notes) {
+ EscapeHTML($_);
+ s{ \[ ([^]]*) \] \( [^)]* \) }{$1}gx; # strip link urls
+ }
+ return @notes;
+}
+
+sub saytitlecol {
+ my ($id) = @_;
my $row = $caniuse->{data}->{$id};
- my $data = $row->{stats} or next; # skip metadata [summary]
- printf '<tr id="%s">', $id;
- printf '<th title="%s">%s', $row->{description}, $row->{title};
- printf '<td title="%s" class="%s">%s', $caniuse->{statuses}->{$_}, $CSTATUS{$_} // '', $_ for $row->{status};
- for my $browser (@browsers) {
- my ($prev, @span);
- for my $ver (@{ $versions{$browser} }, undef) {
- unless (!defined $prev
- or $data->{$browser}->{$prev} ~~ $data->{$browser}->{$ver}) {
- printf '<td class="%s" colspan="%d">%s',
- $CSTATS{ $data->{$browser}->{$prev} },
- scalar @span,
- join('‒', $span[0], @span > 1 ? $span[-1] : ());
- undef $prev;
- @span = ();
+
+ for ($row->{categories}) {
+ my $cell = $_ ? lc $_->[0] : '-';
+ $cell =~ s/ api$//; # trim unessential fluff in 'js api'
+ printf '<th title="%s">%s', join(' + ', @$_), $cell;
+ }
+
+ print '<td>', map {
+ sprintf('<a href="%s" onclick="%s">%s</a>',
+ "#$id",
+ sprintf("try { %s; return false } catch(err) { return true }",
+ "document.getElementById('$id').classList.toggle('target')",
+ ),
+ Entity($_),
+ );
+ } $row->{title};
+ print '<div class=aside>';
+ print "<p>$_</p>"
+ for formatnotes($row->{description}, $row->{notes} || ());
+ if (my %notes = %{ $row->{notes_by_num} }) {
+ say '<p>Browser-specific notes:';
+ say "<br>#$_: ", formatnotes($notes{$_}) for sort keys %notes;
+ say '</p>';
+ }
+ printf 'Resources: %s.', join(', ', map {
+ showlink($_->{title}, $_->{url})
+ } @$_) for grep { @$_ } $row->{links} // ();
+ printf '<br>Parent feature: %s.', join(', ', map {
+ showlink($caniuse->{data}->{$_}->{title}, "#$_")
+ } $_) for $row->{parent} || ();
+ print '</div>';
+}
+
+sub saystatuscol {
+ my ($id) = @_;
+ my $row = $caniuse->{data}->{$id};
+
+ for ($row->{status}) {
+ my $cell = $_ // '-';
+ $cell = showlink($cell, $_) for $row->{spec} // ();
+ printf '<td title="%s" class="l %s">%s',
+ $caniuse->{statuses}->{$_}, $CSTATUS{$_} // '', $cell;
+ }
+}
+
+sub saybrowsercols {
+ my ($id, $browser) = @_;
+ my $feature = $caniuse->{data}->{$id};
+ my $data = $feature->{stats}->{$browser};
+ if (ref $data eq 'ARRAY') {
+ # special case for unsupported
+ my $release = $caniuse->{agents}->{$browser}->{verrelease};
+ $data = {
+ map { $_ => defined $release->{$_} ? 'u' : 'n' } keys %$release
+ };
+ }
+
+ my ($prev, @span);
+ for my $ver (@{ $versions{$browser} }, undef) {
+ my $compare = (
+ !defined $ver ? undef : # last column if nameless
+ ref $data ne 'HASH' ? '' : # unclassified if no support hash
+ $data->{ $ver->[-1] } // $prev # known or inherit from predecessor
+ // (grep { defined } @{$data}{ map { $_->[0] } @{ $versions{$browser} } })[0]
+ ~~ 'n' && 'n' # first known version is unsupported
+ || 'u' # unsure
+ );
+ unless (!defined $prev or $prev ~~ $compare) {
+ my @vercover = (map { @{$_} } @span);
+ for ($ver ? @{$ver} : ()) {
+ $data->{$_} eq $data->{$vercover[-1]} or last;
+ push @vercover, $_; # matches from next span start
}
- push @span, $ver;
- $prev = $ver;
+ my $usage = sum(@{ $canihas->{$browser} }{@vercover});
+
+ # strip #\d note references from support class
+ my @notes;
+ push @notes, $feature->{notes_by_num}->{$1}
+ while $prev =~ s/\h \# (\d+) \b//x;
+
+ # prepare version hover details
+ my $title = sprintf('%.1f%% %s', $usage * $usagepct, join(' ',
+ (map { ref $_ eq 'CODE' ? $_->($browser, $vercover[0]) : $_ }
+ map { $DSTATS{$_} // () }
+ map { split / /, $_ }
+ $prev
+ ),
+ 'in', $caniuse->{agents}->{$browser}->{abbr},
+ showversions(@vercover, undef),
+ ));
+ $title .= "\n$_" for notestotitle(@notes);
+
+ $prev .= ' #' if @notes and $prev =~ /^y/;
+ printf('<td class="%s" colspan="%d" title="%s">%s',
+ join(' ',
+ X => $CSTATS{$prev},
+ !$usage ? ('p0') : ('p',
+ sprintf('p%01d', $usage * ($usagepct - .0001) / 10),
+ sprintf('p%02d', $usage * ($usagepct - .0001)),
+ ),
+ ),
+ scalar @span,
+ $title,
+ showversions($span[0]->[0], @span > 1 && defined $ver ? $span[-1]->[-1] : ()),
+ );
+ undef $prev;
+ @span = ();
}
+ push @span, $ver && [ grep { $data->{ $_ } eq $data->{ $ver->[-1] } } @{$ver} ];
+ $prev = $compare;
}
- print '<td>', int featurerank($id);
}
-print '</table>';
+
+sub sayusagecol {
+ my ($id) = @_;
+ print '<td>', int $caniuse->{data}->{$id}->{usage};
+}
+
+say '<tbody>';
+for my $id (sort {
+ $caniuse->{data}->{$b}->{usage} <=> $caniuse->{data}->{$a}->{usage}
+} keys %{ $caniuse->{data} }) {
+ $caniuse->{data}->{$id}->{stats} or next; # skip metadata [summary]
+ printf '<tr id="%s">', $id;
+ saytitlecol($id);
+ saystatuscol($id);
+ saybrowsercols($id, $_) for @browsers;
+ sayusagecol($id);
+ say '</tr>';
+}
+say '</tbody>';
+say '</table>';
sub paddedver {
# normalised version number comparable as string (cmp)
- shift =~ /^(\d*)(.*)/;
- return sprintf('%02d', $1) . $2;
+ $_[0] =~ m/(?:.*-|^)(\d*)(.*)/;
+ # matched (major)(.minor) of last value in range (a-B)
+ return sprintf('%02d', length $1 ? $1 : 99) . $2;
+}
+
+sub showversions {
+ # title to describe minumum version and optional maximum for multiple cells
+ my @span = (map { split /-/ } grep { defined } @_);
+ return $span[0] =~ s/\.0\z//r if @_ <= 1;
+ splice @span, 1, -1;
+ return join('‒', @span);
}
:>
<div class="legend">
<table class="glyphs"><tr>
- <td class="X di-aa">supported
- <td class="X di-a">prefixed
- <td class="X di-d">partial
- <td class="X di-prop">external (js/plugin)
- <td class="X di-b">missing
+ <td class="X l5">supported
+ <td class="X l4">annotated
+ <td class="X l3">partial
+ <td class="X l2">optional
+ <td class="X l1">missing
+ <td class="X l0">unknown
+ <td class="X ex">prefixed
</table>
+ <p><: if ($usage) { :>
+ Usage percentage:
+ <span class=" p0">0</span> -
+ <span class="p p0 p00">.01</span> -
+ <span class="p p0 p05">1-9</span> -
+ <span class="p p1">10</span> -
+ <span class="p p2">20</span> -
+ <span class="p p5">majority</span>
+<: } else { :>
+ <table class="glyphs"><tr>
+ <td class="p p1">previous version</td>
+ <td class="p p3">current</td>
+ <td class="p p0 p00">upcoming (within months)</td>
+ <td class=" p0">future (within a year)</td>
+ </table>
+<: } :> </p>
+
<div class="right">
<ul class="legend legend-set">
<li>default <strong>style</strong> is
<:= defined $get{style} && 'set to ' :><em><:= $style :></em>
+ <li><strong>usage</strong> source is
+ <:= !defined $get{usage} && 'default ' :><:= defined $usage ? "<em>$usage</em>" : 'not included (<em>0</em>)' :>
+ <li>usage <strong>threshold</strong> is
+ <:= defined $get{threshold} && 'changed to ' :><em><:= $minusage :>%</em>
</ul>
</div>
</div>
+<script type="text/javascript" src="/searchlocal.js"></script>
+<script type="text/javascript"><!--
+ prependsearch(document.getElementById('intro'));
+//--></script>
+