1 # Copyright (C) 2014-2015 all contributors <meta@public-inbox.org>
2 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
4 # represents a header value in various forms. Used for HTML generation
5 # in our web interface(s)
6 package PublicInbox::Hval;
9 use Encode qw(find_encoding);
10 use URI::Escape qw(uri_escape_utf8);
11 use PublicInbox::MID qw/mid_clean/;
13 # for user-generated content (UGC) which may have excessively long lines
14 # and screw up rendering on some browsers. This is the only CSS style
16 use constant STYLE => '<style>pre{white-space:pre-wrap}</style>';
17 use constant PRE => "<pre\nstyle=\"white-space:pre-wrap\">"; # legacy
19 my $enc_ascii = find_encoding('us-ascii');
22 my ($class, $raw, $href) = @_;
24 # we never care about trailing whitespace
28 href => defined $href ? $href : $raw,
33 my ($class, $msgid, $no_compress) = @_;
34 $msgid = mid_clean($msgid);
35 $class->new($msgid, $msgid);
39 my ($class, $raw) = @_;
40 $raw = '' unless defined $raw;
41 $raw =~ tr/\t\n / /s; # squeeze spaces
42 $raw =~ tr/\r//d; # kill CR
56 $s =~ s/\r\n/\n/sg; # fixup bad line endings
57 $s =~ s/([<>&'"])/$xhtml_map{$1}/ge;
58 $enc_ascii->encode($s, Encode::HTMLCREF);
61 sub as_html { ascii_html($_[0]->{raw}) }
62 sub as_href { ascii_html(uri_escape_utf8($_[0]->{href})) }