1 package Gitalist::View::SyntaxHighlight;
3 use namespace::autoclean;
5 extends 'Catalyst::View';
7 use Syntax::Highlight::Engine::Kate ();
8 use Syntax::Highlight::Engine::Kate::Perl ();
10 use HTML::Entities qw(encode_entities);
12 # What should be done, but isn't currently:
14 # broquaint> Another Cat question - if I want to have arbitrary things highlighted is pushing things through a View at all costs terribly wrong?
15 # broquaint> e.g modifying this slightly to highlight anything (or arrays of anything) http://github.com/broquaint/Gitalist/blob/a7cc1ede5f9729465bb53da9c3a8b300a3aa8a0a/lib/Gitalist/View/SyntaxHighlight.pm
16 # t0m> no, that's totally fine.. I'd tend to push the rendering logic into a model, so you end up doing something like: $c->model('SyntaxDriver')->highlight_all($stuff, $c->view('SyntaxHighlight'));
17 # broquaint> I'm thinking it's a bad idea because the Controller needs to munge data such that the View knows what to do
18 # broquaint> You just blew my mind ;)
19 # t0m> ^^ That works _much_ better if you split up your view methods into process & render..
21 # t0m> i.e. I'd have 'highlight this scalar' as the ->render method in the view..
22 # t0m> And then the 'default' thing (i.e. process method) will do that and shove the output in the body..
23 # t0m> but then you can write foreach my $thing (@things) { push(@highlighted_things, $c->view('SyntaxHighlight')->render($thing)); }
24 # t0m> and then I'd move that ^^ loop down into a model which actually knows about / abstracts walking the data structures concerned..
25 # t0m> But splitting render and process is the most important bit.. :) Otherwise you need to jump through hoops to render things that don't fit 'nicely' into the bits of stash / body that the view uses by 'default'
26 # t0m> I wouldn't kill you for putting the structure walking code in the view given you're walking simple arrays / hashes.. It becomes more important if you have a more complex visitor..
27 # t0m> (I use Visitor in the design patterns sense)
28 # t0m> As the visitor is responsible for walking the structure, delegating to the ->render call in the view which is responsible for actually mangling the content..
33 for($c->stash->{blobs} ? @{$c->stash->{blobs}} : $c->stash->{blob}) {
34 $_ = $self->render($c, $_, { language => $c->stash->{language} });
37 $c->forward('View::Default');
41 my ($self, $c, $blob, $args) = @_;
43 my $lang = $args->{language};
47 # via http://github.com/jrockway/angerwhale/blob/master/lib/Angerwhale/Format/Pod.pm#L136
49 no warnings 'redefine';
50 local *Syntax::Highlight::Engine::Kate::Template::logwarning
51 = sub { die @_ }; # i really don't care
52 my $hl = Syntax::Highlight::Engine::Kate->new(
62 # convert Kate's internal representation into
63 # <span class="<internal name>"> value </span>
65 $_ => [ qq{<span class="$_">}, '</span>' ]
67 qw/Alert BaseN BString Char Comment DataType
68 DecVal Error Float Function IString Keyword
69 Normal Operator Others RegionMarker Reserved
70 String Variable Warning/,
74 my $hltxt = $hl->highlightText($blob);
75 $hltxt =~ s/([^[:ascii:]])/encode_entities($1)/eg;
81 return $ret || encode_entities($blob);
84 __PACKAGE__->meta->make_immutable;
90 Gitalist::View::SyntaxHighlight - Responsible for syntax highlighting code
94 Catalyst View for Syntax highlighting.
104 See L<Gitalist> for authors.
108 See L<Gitalist> for the license.