--- test/html-webhacc/cc.cgi	2007/09/02 08:40:49	1.18
+++ test/html-webhacc/cc.cgi	2007/11/19 12:20:14	1.27
@@ -1,5 +1,6 @@
 #!/usr/bin/perl
 use strict;
+use utf8;
 
 use lib qw[/home/httpd/html/www/markup/html/whatpm
            /home/wakaba/work/manakai2/lib];
@@ -51,7 +52,6 @@
 
   $| = 0;
   my $input = get_input_document ($http, $dom);
-  my $inner_html_element = $http->get_parameter ('e');
   my $char_length = 0;
   my %time;
 
@@ -61,7 +61,12 @@
 <dt>Request URI</dt>
     <dd><code class="URI" lang="">&lt;<a href="@{[htescape $input->{request_uri}]}">@{[htescape $input->{request_uri}]}</a>&gt;</code></dd>
 <dt>Document URI</dt>
-    <dd><code class="URI" lang="">&lt;<a href="@{[htescape $input->{uri}]}">@{[htescape $input->{uri}]}</a>&gt;</code></dd>
+    <dd><code class="URI" lang="">&lt;<a href="@{[htescape $input->{uri}]}" id=anchor-document-uri>@{[htescape $input->{uri}]}</a>&gt;</code>
+    <script>
+      document.title = '<'
+          + document.getElementById ('anchor-document-uri').href + '> \\u2014 '
+          + document.title;
+    </script></dd>
 ]; # no </dl> yet
   push @nav, ['#document-info' => 'Information'];
 
@@ -73,7 +78,7 @@
     <dd><code class="URI" lang="">&lt;<a href="@{[htescape $input->{base_uri}]}">@{[htescape $input->{base_uri}]}</a>&gt;</code></dd>
 <dt>Internet Media Type</dt>
     <dd><code class="MIME" lang="en">@{[htescape $input->{media_type}]}</code>
-    @{[$input->{media_type_overridden} ? '<em>(overridden)</em>' : '']}</dd>
+    @{[$input->{media_type_overridden} ? '<em>(overridden)</em>' : defined $input->{official_type} ? $input->{media_type} eq $input->{official_type} ? '' : '<em>(sniffed; official type is: <code class=MIME lang=en>'.htescape ($input->{official_type}).'</code>)' : '<em>(sniffed)</em>']}</dd>
 <dt>Character Encoding</dt>
     <dd>@{[defined $input->{charset} ? '<code class="charset" lang="en">'.htescape ($input->{charset}).'</code>' : '(none)']}
     @{[$input->{charset_overridden} ? '<em>(overridden)</em>' : '']}</dd>
@@ -83,14 +88,17 @@
 </div>
 ];
 
-  print_http_header_section ($input);
+  my $result = {conforming_min => 1, conforming_max => 1};
+  print_http_header_section ($input, $result);
 
   my $doc;
   my $el;
+  my $manifest;
 
   if ($input->{media_type} eq 'text/html') {
-    ($doc, $el) = print_syntax_error_html_section ($input);
-    print_source_string_section (\($input->{s}), $input->{charset});
+    ($doc, $el) = print_syntax_error_html_section ($input, $result);
+    print_source_string_section
+        (\($input->{s}), $input->{charset} || $doc->input_encoding);
   } elsif ({
             'text/xml' => 1,
             'application/atom+xml' => 1,
@@ -99,23 +107,30 @@
             'application/xhtml+xml' => 1,
             'application/xml' => 1,
            }->{$input->{media_type}}) {
-    ($doc, $el) = print_syntax_error_xml_section ($input);
+    ($doc, $el) = print_syntax_error_xml_section ($input, $result);
     print_source_string_section (\($input->{s}), $doc->input_encoding);
+  } elsif ($input->{media_type} eq 'text/cache-manifest') {
+## TODO: MUST be text/cache-manifest
+    $manifest = print_syntax_error_manifest_section ($input, $result);
+    print_source_string_section (\($input->{s}), 'utf-8');
   } else {
     ## TODO: Change HTTP status code??
-    print_result_unknown_type_section ($input);
+    print_result_unknown_type_section ($input, $result);
   }
 
   if (defined $doc or defined $el) {
-    print_structure_dump_section ($doc, $el);
-    my $elements = print_structure_error_section ($doc, $el);
+    print_structure_dump_dom_section ($doc, $el);
+    my $elements = print_structure_error_dom_section ($doc, $el, $result);
     print_table_section ($elements->{table}) if @{$elements->{table}};
     print_id_section ($elements->{id}) if keys %{$elements->{id}};
     print_term_section ($elements->{term}) if keys %{$elements->{term}};
     print_class_section ($elements->{class}) if keys %{$elements->{class}};
+  } elsif (defined $manifest) {
+    print_structure_dump_manifest_section ($manifest);
+    print_structure_error_manifest_section ($manifest, $result);
   }
 
-  ## TODO: Show result
+  print_result_section ($result);
 } else {
   print STDOUT qq[</dl></div>];
   print_result_input_error_section ($input);
@@ -133,7 +148,8 @@
 </html>
 ];
 
-  for (qw/decode parse parse_xml check/) {
+  for (qw/decode parse parse_html parse_xml parse_manifest
+          check check_manifest/) {
     next unless defined $time{$_};
     open my $file, '>>', ".cc-$_.txt" or die ".cc-$_.txt: $!";
     print $file $char_length, "\t", $time{$_}, "\n";
@@ -141,8 +157,36 @@
 
 exit;
 
-sub print_http_header_section ($) {
-  my $input = shift;
+sub add_error ($$$) {
+  my ($layer, $err, $result) = @_;
+  if (defined $err->{level}) {
+    if ($err->{level} eq 's') {
+      $result->{$layer}->{should}++;
+      $result->{$layer}->{score_min} -= 2;
+      $result->{conforming_min} = 0;
+    } elsif ($err->{level} eq 'w' or $err->{level} eq 'g') {
+      $result->{$layer}->{warning}++;
+    } elsif ($err->{level} eq 'unsupported') {
+      $result->{$layer}->{unsupported}++;
+      $result->{unsupported} = 1;
+    } else {
+      $result->{$layer}->{must}++;
+      $result->{$layer}->{score_max} -= 2;
+      $result->{$layer}->{score_min} -= 2;
+      $result->{conforming_min} = 0;
+      $result->{conforming_max} = 0;
+    }
+  } else {
+    $result->{$layer}->{must}++;
+    $result->{$layer}->{score_max} -= 2;
+    $result->{$layer}->{score_min} -= 2;
+    $result->{conforming_min} = 0;
+    $result->{conforming_max} = 0;
+  }
+} # add_error
+
+sub print_http_header_section ($$) {
+  my ($input, $result) = @_;
   return unless defined $input->{header_status_code} or
       defined $input->{header_status_text} or
       @{$input->{header_field}};
@@ -175,18 +219,12 @@
   print STDOUT qq[</tbody></table></div>];
 } # print_http_header_section
 
-sub print_syntax_error_html_section ($) {
-  my $input = shift;
+sub print_syntax_error_html_section ($$) {
+  my ($input, $result) = @_;
   
   require Encode;
   require Whatpm::HTML;
-
-  $input->{charset} ||= 'ISO-8859-1'; ## TODO: for now.
   
-  my $time1 = time;
-  my $t = Encode::decode ($input->{charset}, $input->{s});
-  $time{decode} = time - $time1;
-
   print STDOUT qq[
 <div id="parse-errors" class="section">
 <h2>Parse Errors</h2>
@@ -206,28 +244,42 @@
     $type =~ tr/ /-/;
     $type =~ s/\|/%7C/g;
     $msg .= qq[ [<a href="../error-description#@{[htescape ($type)]}">Description</a>]];
-    print STDOUT qq[<dd class="$cls">$msg</dd>\n];
+    print STDOUT qq[<dd class="$cls">], get_error_level_label (\%opt);
+    print STDOUT qq[$msg</dd>\n];
+
+    add_error ('syntax', \%opt => $result);
   };
 
   my $doc = $dom->create_document;
   my $el;
-  $time1 = time;
+  my $inner_html_element = $http->get_parameter ('e');
   if (defined $inner_html_element and length $inner_html_element) {
+    $input->{charset} ||= 'windows-1252'; ## TODO: for now.
+    my $time1 = time;
+    my $t = Encode::decode ($input->{charset}, $input->{s});
+    $time{decode} = time - $time1;
+    
     $el = $doc->create_element_ns
         ('http://www.w3.org/1999/xhtml', [undef, $inner_html_element]);
+    $time1 = time;
     Whatpm::HTML->set_inner_html ($el, $t, $onerror);
+    $time{parse} = time - $time1;
   } else {
-    Whatpm::HTML->parse_string ($t => $doc, $onerror);
+    my $time1 = time;
+    Whatpm::HTML->parse_byte_string
+        ($input->{charset}, $input->{s} => $doc, $onerror);
+    $time{parse_html} = time - $time1;
   }
-  $time{parse} = time - $time1;
-
+  $doc->manakai_charset ($input->{official_charset})
+      if defined $input->{official_charset};
+  
   print STDOUT qq[</dl></div>];
 
   return ($doc, $el);
 } # print_syntax_error_html_section
 
-sub print_syntax_error_xml_section ($) {
-  my $input = shift;
+sub print_syntax_error_xml_section ($$) {
+  my ($input, $result) = @_;
   
   require Message::DOM::XMLParserTemp;
   
@@ -244,6 +296,14 @@
     print STDOUT qq[<dt><a href="#line-$line">Line $line</a> column ];
     print STDOUT $err->location->column_number, "</dt><dd>";
     print STDOUT htescape $err->text, "</dd>\n";
+
+    add_error ('syntax', {type => $err->text,
+                level => [
+                          $err->SEVERITY_FATAL_ERROR => 'm',
+                          $err->SEVERITY_ERROR => 'm',
+                          $err->SEVERITY_WARNING => 's',
+                         ]->[$err->severity]} => $result);
+
     return 1;
   };
 
@@ -252,12 +312,49 @@
   my $doc = Message::DOM::XMLParserTemp->parse_byte_stream
       ($fh => $dom, $onerror, charset => $input->{charset});
   $time{parse_xml} = time - $time1;
+  $doc->manakai_charset ($input->{official_charset})
+      if defined $input->{official_charset};
 
   print STDOUT qq[</dl></div>];
 
   return ($doc, undef);
 } # print_syntax_error_xml_section
 
+sub print_syntax_error_manifest_section ($$) {
+  my ($input, $result) = @_;
+
+  require Whatpm::CacheManifest;
+
+  print STDOUT qq[
+<div id="parse-errors" class="section">
+<h2>Parse Errors</h2>
+
+<dl>];
+  push @nav, ['#parse-errors' => 'Parse Error'];
+
+  my $onerror = sub {
+    my (%opt) = @_;
+    my ($type, $cls, $msg) = get_text ($opt{type}, $opt{level});
+    print STDOUT qq[<dt class="$cls">], get_error_label (\%opt), qq[</dt>];
+    $type =~ tr/ /-/;
+    $type =~ s/\|/%7C/g;
+    $msg .= qq[ [<a href="../error-description#@{[htescape ($type)]}">Description</a>]];
+    print STDOUT qq[<dd class="$cls">], get_error_level_label (\%opt);
+    print STDOUT qq[$msg</dd>\n];
+
+    add_error ('syntax', \%opt => $result);
+  };
+
+  my $time1 = time;
+  my $manifest = Whatpm::CacheManifest->parse_byte_string
+      ($input->{s}, $input->{uri}, $input->{base_uri}, $onerror);
+  $time{parse_manifest} = time - $time1;
+
+  print STDOUT qq[</dl></div>];
+
+  return $manifest;
+} # print_syntax_error_manifest_section
+
 sub print_source_string_section ($$) {
   require Encode;
   my $enc = Encode::find_encoding ($_[1]); ## TODO: charset name -> Perl name
@@ -306,7 +403,7 @@
         $r .= '<ul class="attributes">';
         for my $attr (sort {$a->[0] cmp $b->[0]} map { [$_->name, $_->value, $_->namespace_uri, 'node-'.refaddr $_] }
                       @{$child->attributes}) {
-          $r .= qq[<li id="$attr->[3]" class="tree-attribute"><code title="@{[defined $_->[2] ? $_->[2] : '']}">] . htescape ($attr->[0]) . '</code> = '; ## ISSUE: case?
+          $r .= qq[<li id="$attr->[3]" class="tree-attribute"><code title="@{[defined $attr->[2] ? htescape ($attr->[2]) : '']}">] . htescape ($attr->[0]) . '</code> = '; ## ISSUE: case?
           $r .= '<q>' . htescape ($attr->[1]) . '</q></li>'; ## TODO: children
         }
         $r .= '</ul>';
@@ -327,6 +424,21 @@
     } elsif ($nt == $child->DOCUMENT_NODE) {
       $r .= qq'<li id="$node_id" class="tree-document">Document';
       $r .= qq[<ul class="attributes">];
+      my $cp = $child->manakai_charset;
+      if (defined $cp) {
+        $r .= qq[<li><code>charset</code> parameter = <code>];
+        $r .= htescape ($cp) . qq[</code></li>];
+      }
+      $r .= qq[<li><code>inputEncoding</code> = ];
+      my $ie = $child->input_encoding;
+      if (defined $ie) {
+        $r .= qq[<code>@{[htescape ($ie)]}</code>];
+        if ($child->manakai_has_bom) {
+          $r .= qq[ (with <code class=charname><abbr>BOM</abbr></code>)];
+        }
+      } else {
+        $r .= qq[(<code>null</code>)];
+      }
       $r .= qq[<li>@{[scalar get_text ('manakaiIsHTML:'.($child->manakai_is_html?1:0))]}</li>];
       $r .= qq[<li>@{[scalar get_text ('manakaiCompatMode:'.$child->manakai_compat_mode)]}</li>];
       unless ($child->manakai_is_html) {
@@ -360,7 +472,7 @@
   print STDOUT $r;
 } # print_document_tree
 
-sub print_structure_dump_section ($$) {
+sub print_structure_dump_dom_section ($$) {
   my ($doc, $el) = @_;
 
   print STDOUT qq[
@@ -372,10 +484,44 @@
   print_document_tree ($el || $doc);
 
   print STDOUT qq[</div>];
-} # print_structure_dump_section
+} # print_structure_dump_dom_section
 
-sub print_structure_error_section ($$) {
-  my ($doc, $el) = @_;
+sub print_structure_dump_manifest_section ($) {
+  my $manifest = shift;
+
+  print STDOUT qq[
+<div id="dump-manifest" class="section">
+<h2>Cache Manifest</h2>
+];
+  push @nav, ['#dump-manifest' => 'Caceh Manifest'];
+
+  print STDOUT qq[<dl><dt>Explicit entries</dt>];
+  for my $uri (@{$manifest->[0]}) {
+    my $euri = htescape ($uri);
+    print STDOUT qq[<dd><code class=uri>&lt;<a href="$euri">$euri</a>></code></dd>];
+  }
+
+  print STDOUT qq[<dt>Fallback entries</dt><dd>
+      <table><thead><tr><th scope=row>Oppotunistic Caching Namespace</th>
+      <th scope=row>Fallback Entry</tr><tbody>];
+  for my $uri (sort {$a cmp $b} keys %{$manifest->[1]}) {
+    my $euri = htescape ($uri);
+    my $euri2 = htescape ($manifest->[1]->{$uri});
+    print STDOUT qq[<tr><td><code class=uri>&lt;<a href="$euri">$euri</a>></code></td>
+        <td><code class=uri>&lt;<a href="$euri2">$euri2</a>></code></td>];
+  }
+
+  print STDOUT qq[</table><dt>Online whitelist</dt>];
+  for my $uri (@{$manifest->[2]}) {
+    my $euri = htescape ($uri);
+    print STDOUT qq[<dd><code class=uri>&lt;<a href="$euri">$euri</a>></code></dd>];
+  }
+
+  print STDOUT qq[</dl></div>];
+} # print_structure_dump_manifest_section
+
+sub print_structure_error_dom_section ($$$) {
+  my ($doc, $el, $result) = @_;
 
   print STDOUT qq[<div id="document-errors" class="section">
 <h2>Document Errors</h2>
@@ -390,8 +536,10 @@
     $type =~ tr/ /-/;
     $type =~ s/\|/%7C/g;
     $msg .= qq[ [<a href="../error-description#@{[htescape ($type)]}">Description</a>]];
-    print STDOUT qq[<dt class="$cls">] . get_node_link ($opt{node}) .
-        qq[</dt>\n<dd class="$cls">], $msg, "</dd>\n";
+    print STDOUT qq[<dt class="$cls">] . get_error_label (\%opt) .
+        qq[</dt>\n<dd class="$cls">], get_error_level_label (\%opt);
+    print STDOUT $msg, "</dd>\n";
+    add_error ('structure', \%opt => $result);
   };
 
   my $elements;
@@ -406,7 +554,31 @@
   print STDOUT qq[</dl></div>];
 
   return $elements;
-} # print_structure_error_section
+} # print_structure_error_dom_section
+
+sub print_structure_error_manifest_section ($$$) {
+  my ($manifest, $result) = @_;
+
+  print STDOUT qq[<div id="document-errors" class="section">
+<h2>Document Errors</h2>
+
+<dl>];
+  push @nav, ['#document-errors' => 'Document Error'];
+
+  require Whatpm::CacheManifest;
+  Whatpm::CacheManifest->check_manifest ($manifest, sub {
+    my %opt = @_;
+    my ($type, $cls, $msg) = get_text ($opt{type}, $opt{level}, $opt{node});
+    $type =~ tr/ /-/;
+    $type =~ s/\|/%7C/g;
+    $msg .= qq[ [<a href="../error-description#@{[htescape ($type)]}">Description</a>]];
+    print STDOUT qq[<dt class="$cls">] . get_error_label (\%opt) .
+        qq[</dt>\n<dd class="$cls">], $msg, "</dd>\n";
+    add_error ('structure', \%opt => $result);
+  });
+
+  print STDOUT qq[</div>];
+} # print_structure_error_manifest_section
 
 sub print_table_section ($) {
   my $tables = shift;
@@ -524,15 +696,119 @@
   print STDOUT qq[</dl></div>];
 } # print_class_section
 
-sub print_result_unknown_type_section ($) {
-  my $input = shift;
+sub print_result_section ($) {
+  my $result = shift;
 
   print STDOUT qq[
 <div id="result-summary" class="section">
-<p><em>Media type <code class="MIME" lang="en">@{[htescape $input->{media_type}]}</code> is not supported!</em></p>
+<h2>Result</h2>];
+
+  if ($result->{unsupported} and $result->{conforming_max}) {  
+    print STDOUT qq[<p class=uncertain id=result-para>The conformance
+        checker cannot decide whether the document is conforming or
+        not, since the document contains one or more unsupported
+        features.  The document might or might not be conforming.</p>];
+  } elsif ($result->{conforming_min}) {
+    print STDOUT qq[<p class=PASS id=result-para>No conformance-error is
+        found in this document.</p>];
+  } elsif ($result->{conforming_max}) {
+    print STDOUT qq[<p class=SEE-RESULT id=result-para>This document
+        is <strong>likely <em>non</em>-conforming</strong>, but in rare case
+        it might be conforming.</p>];
+  } else {
+    print STDOUT qq[<p class=FAIL id=result-para>This document is 
+        <strong><em>non</em>-conforming</strong>.</p>];
+  }
+
+  print STDOUT qq[<table>
+<colgroup><col><colgroup><col><col><col><colgroup><col>
+<thead>
+<tr><th scope=col></th>
+<th scope=col><a href="../error-description#level-m"><em class=rfc2119>MUST</em>‐level
+Errors</a></th>
+<th scope=col><a href="../error-description#level-s"><em class=rfc2119>SHOULD</em>‐level
+Errors</a></th>
+<th scope=col><a href="../error-description#level-w">Warnings</a></th>
+<th scope=col>Score</th></tr></thead><tbody>];
+
+  my $must_error = 0;
+  my $should_error = 0;
+  my $warning = 0;
+  my $score_min = 0;
+  my $score_max = 0;
+  my $score_base = 20;
+  my $score_unit = $score_base / 100;
+  for (
+    [Transfer => 'transfer', ''],
+    [Character => 'char', ''],
+    [Syntax => 'syntax', '#parse-errors'],
+    [Structure => 'structure', '#document-errors'],
+  ) {
+    $must_error += ($result->{$_->[1]}->{must} += 0);
+    $should_error += ($result->{$_->[1]}->{should} += 0);
+    $warning += ($result->{$_->[1]}->{warning} += 0);
+    $score_min += (($result->{$_->[1]}->{score_min} *= $score_unit) += $score_base);
+    $score_max += (($result->{$_->[1]}->{score_max} *= $score_unit) += $score_base);
+
+    my $uncertain = $result->{$_->[1]}->{unsupported} ? '?' : '';
+    my $label = $_->[0];
+    if ($result->{$_->[1]}->{must} or
+        $result->{$_->[1]}->{should} or
+        $result->{$_->[1]}->{warning} or
+        $result->{$_->[1]}->{unsupported}) {
+      $label = qq[<a href="$_->[2]">$label</a>];
+    }
+
+    print STDOUT qq[<tr class="@{[$uncertain ? 'uncertain' : '']}"><th scope=row>$label</th><td class="@{[$result->{$_->[1]}->{must} ? 'FAIL' : '']}">$result->{$_->[1]}->{must}$uncertain</td><td class="@{[$result->{$_->[1]}->{should} ? 'SEE-RESULT' : '']}">$result->{$_->[1]}->{should}$uncertain</td><td>$result->{$_->[1]}->{warning}$uncertain</td>];
+    if ($uncertain) {
+      print qq[<td class="@{[$result->{$_->[1]}->{must} ? 'FAIL' : $result->{$_->[1]}->{should} ? 'SEE-RESULT' : '']}">&#x2212;&#x221E;..$result->{$_->[1]}->{score_max}</td>];
+    } elsif ($result->{$_->[1]}->{score_min} != $result->{$_->[1]}->{score_max}) {
+      print qq[<td class="@{[$result->{$_->[1]}->{must} ? 'FAIL' : 'SEE-RESULT']}">$result->{$_->[1]}->{score_min}..$result->{$_->[1]}->{score_max}</td></tr>];
+    } else {
+      print qq[<td class="@{[$result->{$_->[1]}->{must} ? 'FAIL' : '']}">$result->{$_->[1]}->{score_min}</td></tr>];
+    }
+  }
+
+  $score_max += $score_base;
+
+  print STDOUT qq[
+<tr class=uncertain><th scope=row>Semantics</th><td>0?</td><td>0?</td><td>0?</td><td>&#x2212;&#x221E;..$score_base</td></tr>
+</tbody>
+<tfoot><tr class=uncertain><th scope=row>Total</th>
+<td class="@{[$must_error ? 'FAIL' : '']}">$must_error?</td>
+<td class="@{[$should_error ? 'SEE-RESULT' : '']}">$should_error?</td>
+<td>$warning?</td>
+<td class="@{[$must_error ? 'FAIL' : $should_error ? 'SEE-RESULT' : '']}"><strong>&#x2212;&#x221E;..$score_max</strong></td></tr></tfoot>
+</table>
+
+<p><strong>Important</strong>: This conformance checking service
+is <em>under development</em>.  The result above might be <em>wrong</em>.</p>
+</div>];
+  push @nav, ['#result-summary' => 'Result'];
+} # print_result_section
+
+sub print_result_unknown_type_section ($$) {
+  my ($input, $result) = @_;
+
+  my $euri = htescape ($input->{uri});
+  print STDOUT qq[
+<div id="parse-errors" class="section">
+<h2>Errors</h2>
+
+<dl>
+<dt class=unsupported><code>&lt;<a href="$euri">$euri</a>&gt;</code></dt>
+    <dd class=unsupported><strong><a href="../error-description#level-u">Not
+        supported</a></strong>:
+    Media type
+    <code class="MIME" lang="en">@{[htescape $input->{media_type}]}</code>
+    is not supported.</dd>
+</dl>
 </div>
 ];
-  push @nav, ['#result-summary' => 'Result'];
+  push @nav, ['#parse-errors' => 'Errors'];
+  add_error (char => {level => 'unsupported'} => $result);
+  add_error (syntax => {level => 'unsupported'} => $result);
+  add_error (structure => {level => 'unsupported'} => $result);
 } # print_result_unknown_type_section
 
 sub print_result_input_error_section ($) {
@@ -543,6 +819,64 @@
   push @nav, ['#result-summary' => 'Result'];
 } # print_Result_input_error_section
 
+sub get_error_label ($) {
+  my $err = shift;
+
+  my $r = '';
+
+  if (defined $err->{line}) {
+    if ($err->{column} > 0) {
+      $r = qq[<a href="#line-$err->{line}">Line $err->{line}</a> column $err->{column}];
+    } else {
+      $err->{line} = $err->{line} - 1 || 1;
+      $r = qq[<a href="#line-$err->{line}">Line $err->{line}</a>];
+    }
+  }
+
+  if (defined $err->{node}) {
+    $r .= ' ' if length $r;
+    $r = get_node_link ($err->{node});
+  }
+
+  if (defined $err->{index}) {
+    $r .= ' ' if length $r;
+    $r .= 'Index ' . (0+$err->{index});
+  }
+
+  if (defined $err->{value}) {
+    $r .= ' ' if length $r;
+    $r .= '<q><code>' . htescape ($err->{value}) . '</code></q>';
+  }
+
+  return $r;
+} # get_error_label
+
+sub get_error_level_label ($) {
+  my $err = shift;
+
+  my $r = '';
+
+  if (not defined $err->{level} or $err->{level} eq 'm') {
+    $r = qq[<strong><a href="../error-description#level-m"><em class=rfc2119>MUST</em>‐level
+        error</a></strong>: ];
+  } elsif ($err->{level} eq 's') {
+    $r = qq[<strong><a href="../error-description#level-s"><em class=rfc2119>SHOULD</em>‐level
+        error</a></strong>: ];
+  } elsif ($err->{level} eq 'w') {
+    $r = qq[<strong><a href="../error-description#level-w">Warning</a></strong>:
+        ];
+  } elsif ($err->{level} eq 'unsupported') {
+    $r = qq[<strong><a href="../error-description#level-u">Not
+        supported</a></strong>: ];
+  } else {
+    my $elevel = htescape ($err->{level});
+    $r = qq[<strong><a href="../error-description#level-$elevel">$elevel</a></strong>:
+        ];
+  }
+
+  return $r;
+} # get_error_level_label
+
 sub get_node_path ($) {
   my $node = shift;
   my @r;
@@ -580,7 +914,8 @@
 
 sub load_text_catalog ($) {
   my $lang = shift; # MUST be a canonical lang name
-  open my $file, '<', "cc-msg.$lang.txt" or die "$0: cc-msg.$lang.txt: $!";
+  open my $file, '<:utf8', "cc-msg.$lang.txt"
+      or die "$0: cc-msg.$lang.txt: $!";
   while (<$file>) {
     if (s/^([^;]+);([^;]*);//) {
       my ($type, $cls, $msg) = ($1, $2, $_);
@@ -688,12 +1023,10 @@
 
       ## TODO: More strict parsing...
       my $ct = $res->header ('Content-Type');
-      if (defined $ct and $ct =~ m#^([0-9A-Za-z._+-]+/[0-9A-Za-z._+-]+)#) {
-        $r->{media_type} = lc $1;
-      }
-      if (defined $ct and $ct =~ /;\s*charset\s*=\s*"?(\S+)"?/i) {
+      if (defined $ct and $ct =~ /;\s*charset\s*=\s*"?([^\s;"]+)"?/i) {
         $r->{charset} = lc $1;
         $r->{charset} =~ tr/\\//d;
+        $r->{official_charset} = $r->{charset};
       }
 
       my $input_charset = $http->get_parameter ('charset');
@@ -701,9 +1034,22 @@
         $r->{charset_overridden}
             = (not defined $r->{charset} or $r->{charset} ne $input_charset);
         $r->{charset} = $input_charset;
-      } 
+      }
+
+      ## TODO: Support for HTTP Content-Encoding
 
       $r->{s} = ''.$res->content;
+
+      require Whatpm::ContentType;
+      ($r->{official_type}, $r->{media_type})
+          = Whatpm::ContentType->get_sniffed_type
+              (get_file_head => sub {
+                 return substr $r->{s}, 0, shift;
+               },
+               http_content_type_byte => $ct,
+               has_http_content_encoding =>
+                   defined $res->header ('Content-Encoding'),
+               supported_image_types => {});
     } else {
       $r->{uri} = $res->request->uri;
       $r->{request_uri} = $request_uri;
@@ -724,7 +1070,18 @@
     $r->{charset} = ''.$http->get_parameter ('_charset_');
     $r->{charset} =~ s/\s+//g;
     $r->{charset} = 'utf-8' if $r->{charset} eq '';
+    $r->{official_charset} = $r->{charset};
     $r->{header_field} = [];
+
+    require Whatpm::ContentType;
+    ($r->{official_type}, $r->{media_type})
+        = Whatpm::ContentType->get_sniffed_type
+            (get_file_head => sub {
+               return substr $r->{s}, 0, shift;
+             },
+             http_content_type_byte => undef,
+             has_http_content_encoding => 0,
+             supported_image_types => {});
   }
 
   my $input_format = $http->get_parameter ('i');
@@ -741,6 +1098,7 @@
   if ($r->{media_type} eq 'text/xml') {
     unless (defined $r->{charset}) {
       $r->{charset} = 'us-ascii';
+      $r->{official_charset} = $r->{charset};
     } elsif ($r->{charset_overridden} and $r->{charset} eq 'us-ascii') {
       $r->{charset_overridden} = 0;
     }
@@ -791,4 +1149,4 @@
 
 =cut
 
-## $Date: 2007/09/02 08:40:49 $
+## $Date: 2007/11/19 12:20:14 $