termcol: make rules to setup xcolors checkout
[sheet.git] / source.plp
index f713a73c3cbe0631d9ccb614f479aa0bf040b057..71ed8cecf15c46c50d1399d6ae052dbc757cd9eb 100644 (file)
 <(common.inc.plp)><:
-       our $VERSION = 'v1.0';
 
-:><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
- "http://www.w3.org/TR/html4/loose.dtd">
-<html>
+my $source = $Request;
 
-<head>
-<meta http-equiv="content-type" content="<:= $header{content_type} :>">
-<title>sheet page source code</title>
-<:= stylesheet(qw'light dark mono red') :>
-</head>
+if ($source =~ s{(?<=\Q.inc.pl\E)/jsonp?$}{} and -r $source) {
+       # convert perl include to json construct
+       checkmodified($source);
+       eval {
+               my $data = do $source or die $@ || $! || 'read error';
+               require JSON;
+               my $converter = JSON->new;
+               $converter->utf8->indent->space_after->canonical;
 
-<body id="source">
-<:
+               $header{content_type} = 'application/json';
+               $header{content_type} = 'text/plain' if exists $get{debug};
+               print $_, '(' for $get{callback} // ();
+               print $converter->encode($data);
+               print     ')' for $get{callback} // ();
+               return 1;
+       } or do {
+               $header{status} = '500 File unavailable';
+               $header{content_type} = 'text/plain';
+               print "Conversion failed: $@";
+       };
+       exit;
+}
+
+Html({
+       title => "$source source code",
+       version => '1.1',
+       description => !$source ? 'Index of source files for this site.' : [
+               "Source code of the $source file at this site,",
+               "with syntax highlighted and references linked."
+       ],
+       keywords => [qw'
+               sheet cheat source code perl plp html agpl
+       '],
+       stylesheet => [qw'light dark mono red'],
+});
 
-my $source = $ENV{PATH_INFO};
-$source =~ s{^/}{};
+say '';
 
 if (not $source) {
        print "<h1>Source files</h1>";
 
        print "<p>Project code distributed under the AGPL. Please contribute back.</p>";
-       print '<ul>'."\n";
+       say '<ul>';
        for (glob '*.plp') {
                chomp;
-               printf '<li><a href="/source/%s">%1$s</a></li>'."\n", EscapeHTML($_);
+               say '<li>', showlink($_, "/source/$_");
        }
-       print "</ul>\n\n";
+       say "</ul>\n";
 }
 else {
-       print "<h1>Source of $source</h1>\n";
+       say "<h1>Source of $source</h1>";
 
        if ($source =~ m{(?:/|^)\.}) {
                die "File request not permitted\n";
        }
        elsif ($source =~ s{::}{/}g or !-e $source) {
                $source .= '.pm';
-               for (0 .. $#{@INC}) {
+               for (0 .. $#INC) {
                        -e ($_ = "$INC[$_]/$source") or next;
                        $source = $_;
                        last;
                }
        }
        -r $source or die "Requested file not found\n";
+       my $size = (stat $source)->[7];
 
-       if (eval { require Text::VimColor and Text::VimColor->VERSION(0.12) }) {
+       if (my $hl = eval {
+               $size < 32_768 or die 'large files take too long to parse';
+               require Text::VimColor;
+               Text::VimColor->VERSION(0.12)
+                       or die 'early versions are buggy under FastCGI';
                delete $Text::VimColor::SYNTAX_TYPE{Underlined};
+               return Text::VimColor->new(
+                       file => $source,
+                       vim_options => [@Text::VimColor::VIM_OPTIONS, '+:set enc=utf-8'],
+               )->marked;
+       }) {
                my %TYPETAG = (
                        Statement => 'strong',
                        Error     => 'em',
                        Todo      => 'em',
                );
 
-               my $hl = Text::VimColor->new(
-                       file => $source,
-                       vim_options => [@Text::VimColor::VIM_OPTIONS, '+:set enc=utf-8'],
-               );
-               my $parsed = $hl->marked;
-               print "<pre>\n";
-               foreach (@$parsed) {
-                       my $tag = $_->[0] && ($TYPETAG{ $_->[0] } || 'span');
+               say '<pre>';
+               foreach (@{$hl}) {
+                       my ($type, $contents) = @{$_};
+                       $contents = decode_utf8($contents);
+                       my $tag = $type && ($TYPETAG{$type} || 'span');
                        my $arg = '';
-                       print "<$tag$arg class=\"sy-\l$_->[0]\">" if $tag;
-                       if (!$_->[0] || $_->[0] eq 'Constant'
-                       and $_->[1] =~ s{^(['"]?)(/?[a-z0-9_.]+\.(?:plp?|css|js))(?=\1$)}{}) {
-                               printf '%s<a href="%s">%s</a>', $1, "/source/$2", $2;
+                       print "<$tag$arg class=\"sy-\l$type\">" if $tag;
+                       if (!$type || $type eq 'Constant'
+                       and $contents =~ s{^(['"]?)([/a-z0-9_.-]+\.(?:plp?|css|js))(?=\1$)}{}) {
+                               # link other page sources, stylesheets, and javascript
+                               print $1 . showlink($2, "/source/$2");
                        }
-                       if (!$_->[0] and $_->[1] =~ s/^(\s*)([A-Z]\w+(?:::\w+)+)(?![^;\s])//) {
-                               printf '%s<a href="%s">%s</a>', $1, "/source/$2", $2;
+                       if (!$type and $contents =~ s/^(\s*)([A-Z]\w+(?:::\w+)+)(?![^;\s])//) {
+                               # link perl module names (Xx::Xx...)
+                               print $1 . showlink($2, "/source/$2");
                        }
-                       print Text::VimColor::_xml_escape($_->[1]);
+                       if ($type && $type eq 'Comment'
+                       and $contents =~ s{^(.*? by )(tools/\S+)}{}) {
+                               # link generator scripts (by tools/...)
+                               print $1 . showlink($2, "/source/$2");
+                       }
+                       print Text::VimColor::_xml_escape($contents);
                        print "</$tag>" if $tag;
                }
-               print "</pre>\n";
+               say '</pre>';
        }
        else {
-               print "<pre>\n", EscapeHTML(ReadFile($source)), "</pre>\n";
+               say '<pre>';
+               print EscapeHTML(decode_utf8(ReadFile($source)));
+               say '</pre>';
        }
+
+       say '';
 }
-:>
-<p class="footer">
-       <a href="/" rel="home">sheet.shiar.nl</a>/source.<a href="/source/source.plp"
-        rel="code" title="Written in Perl">plp</a>
-       <a href="http://git.shiar.nl/sheet.git/history/HEAD:/source.plp"
-        rel="vcs-git" title="Git repository"><:= $VERSION :></a>
-       created by <a href="http://shiar.nl/" rel="author">Shiar</a> •
-       <a href="http://www.fsf.org/licensing/licenses/agpl-3.0.html" rel="copyright"
-        title="Licensed under the GNU Affero General Public License, version 3">AGPLv3</a>
-</p>
 
-</html>