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package IkiWiki::Plugin::table;
# by Victor Moral <victor@taquiones.net>
use warnings;
use strict;
use Encode;
use IkiWiki 2.00;
sub import { #{{{
hook(type => "preprocess", id => "table", call => \&preprocess);
} # }}}
sub preprocess (@) { #{{{
my %params =(
format => 'auto',
header => 'yes',
@_
);
if (exists $params{file}) {
if (! $pagesources{$params{file}}) {
error gettext("cannot find file");
}
$params{data} = readfile(srcfile($params{file}));
add_depends($params{page}, $params{file});
}
if (lc $params{format} eq 'auto') {
# first try the more simple format
if (is_dsv_data($params{data})) {
$params{format} = 'dsv';
}
else {
$params{format} = 'csv';
}
}
my @data;
if (lc $params{format} eq 'csv') {
@data=split_csv($params{data},
defined $params{delimiter} ? $params{delimiter} : ",",);
# linkify after parsing since html link quoting can
# confuse CSV parsing
if (! exists $params{file}) {
@data=map {
[ map {
IkiWiki::linkify($params{page},
$params{destpage}, $_);
} @$_ ]
} @data;
}
}
elsif (lc $params{format} eq 'dsv') {
# linkify before parsing since wikilinks can contain the
# delimiter
if (! exists $params{file}) {
$params{data} = IkiWiki::linkify($params{page},
$params{destpage}, $params{data});
}
@data=split_dsv($params{data},
defined $params{delimiter} ? $params{delimiter} : "|",);
}
else {
error gettext("unknown data format");
}
my $header;
if (lc($params{header}) eq "yes") {
$header=shift @data;
}
if (! @data) {
error gettext("empty data");
}
my @lines;
push @lines, defined $params{class}
? "<table class=\"".$params{class}.'">'
: '<table>';
push @lines, "\t<thead>",
genrow($params{page}, $params{destpage}, "th", @$header),
"\t</thead>" if defined $header;
push @lines, "\t<tbody>" if defined $header;
push @lines, genrow($params{page}, $params{destpage}, "td", @$_)
foreach @data;
push @lines, "\t</tbody>" if defined $header;
push @lines, '</table>';
my $html = join("\n", @lines);
if (exists $params{file}) {
return $html."\n\n".
htmllink($params{page}, $params{destpage}, $params{file},
linktext => gettext('Direct data download'));
}
else {
return $html;
}
} #}}}
sub is_dsv_data ($) { #{{{
my $text = shift;
my ($line) = split(/\n/, $text);
return $line =~ m{.+\|};
}
sub split_csv ($$) { #{{{
my @text_lines = split(/\n/, shift);
my $delimiter = shift;
eval q{use Text::CSV};
error($@) if $@;
my $csv = Text::CSV->new({
sep_char => $delimiter,
binary => 1,
allow_loose_quotes => 1,
}) || error("could not create a Text::CSV object");
my $l=0;
my @data;
foreach my $line (@text_lines) {
$l++;
if ($csv->parse($line)) {
push(@data, [ map { decode_utf8 $_ } $csv->fields() ]);
}
else {
debug(sprintf(gettext('parse fail at line %d: %s'),
$l, $csv->error_input()));
}
}
return @data;
} #}}}
sub split_dsv ($$) { #{{{
my @text_lines = split(/\n/, shift);
my $delimiter = shift;
$delimiter="|" unless defined $delimiter;
my @data;
foreach my $line (@text_lines) {
push @data, [ split(/\Q$delimiter\E/, $line, -1) ];
}
return @data;
} #}}}
sub genrow ($$$@) { #{{{
my $page = shift;
my $destpage = shift;
my $elt = shift;
my @data = @_;
my @ret;
push @ret, "\t\t<tr>";
for (my $x=0; $x < @data; $x++) {
my $cell=htmlize($page, $destpage, $data[$x]);
my $colspan=1;
while ($x+1 < @data && $data[$x+1] eq '') {
$x++;
$colspan++;
}
if ($colspan > 1) {
push @ret, "\t\t\t<$elt colspan=\"$colspan\">$cell</$elt>"
}
else {
push @ret, "\t\t\t<$elt>$cell</$elt>"
}
}
push @ret, "\t\t</tr>";
return @ret;
} #}}}
sub htmlize ($$$) { #{{{
my $page = shift;
my $destpage = shift;
return IkiWiki::htmlize($page, $destpage, pagetype($pagesources{$page}),
IkiWiki::preprocess($page, $destpage, shift));
}
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