bugzilla-4intranet/Text/TabularDisplay/Utf8.pm

127 lines
3.6 KiB
Perl

package Text::TabularDisplay::Utf8;
use utf8;
use strict;
use base 'Text::TabularDisplay';
# -------------------------------------------------------------------
# render([$start, $end])
#
# Returns the data formatted as a table. By default, all rows are
# returned; if $start or $end are specified, then only those indexes
# are returned. Those are the start and end indexes!
# -------------------------------------------------------------------
sub render {
my $self = shift;
my $start = shift || 0;
my $end = shift || $#{ $self->{ _DATA } };
my $size = $self->{ _SIZE };
my (@columns, $datum, @text);
push @text, '┌' . join("┬", map( { "─" x ($_ + 2) } @{ $self->{ _LENGTHS } })) . '┐';
if (@columns = $self->columns) {
push @text, _format_line(\@columns, $self->{ _LENGTHS });
push @text, '├' . join("┼", map( { "─" x ($_ + 2) } @{ $self->{ _LENGTHS } })) . '┤';
}
for (my $i = $start; $i <= $end; $i++) {
$datum = $self->{ _DATA }->[$i];
last unless defined $datum;
# Pad the array if there are more elements in @columns
push @$datum, ""
until (@$datum == $size);
push @text, _format_line($datum, $self->{ _LENGTHS });
}
push @text, '└' . join("┴", map( { "─" x ($_ + 2) } @{ $self->{ _LENGTHS } })) . '┘';
return join "\n", @text;
}
# -------------------------------------------------------------------
# _column_length($str)
# -------------------------------------------------------------------
sub _column_length
{
my ($str) = @_;
my $len = 0;
for (split "\n", $str) {
$len = length
if $len < length;
}
# why the /hell/ this length is tainted?..
if (${^TAINT})
{
($len) = $len =~ /(\d+)/so;
}
return $len;
}
undef &Text::TabularDisplay::_column_length;
*Text::TabularDisplay::_column_length = \&_column_length;
# -------------------------------------------------------------------
# _format_line(\@columns, \@lengths)
#
# Returns a formatted line out of @columns; the size of $column[$i]
# is determined by $length[$i].
# -------------------------------------------------------------------
sub _format_line {
my ($columns, $lengths) = @_;
my $height = 0;
my @col_lines;
for (@$columns) {
my @lines = split "\n";
$height = scalar @lines
if $height < @lines;
push @col_lines, \@lines;
}
my @lines;
for my $h (0 .. $height - 1 ) {
my @line;
for (my $i = 0; $i <= $#$columns; $i++) {
my $val = defined($col_lines[$i][$h]) ? $col_lines[$i][$h] : '';
push @line, sprintf " %-" . $lengths->[$i] . "s ", $val;
}
push @lines, join '│', "", @line, "";
}
return join "\n", @lines;
}
1;
__END__
=head1 NAME
Text::TabularDisplay::Utf8 - Display text in formatted table output using UTF-8 pseudographics
=head1 SYNOPSIS
use Text::TabularDisplay::Utf8;
my $table = Text::TabularDisplay::Utf8->new(@columns);
$table->add(@row)
while (@row = $sth->fetchrow);
print $table->render;
┌────┬──────────────┐
│ id │ name │
├────┼──────────────┤
│ 1 │ Tom │
│ 2 │ Dick │
│ 3 │ Barry │
│ │ (aka Bazza) │
│ 4 │ Harry │
└────┴──────────────┘
=head1 DESCRIPTION
The program interface is fully compatible with C<Text::TabularDisplay> -
see its perldoc for more information.