scripts/kernel-doc: added support for html5

New output option html5 writes validating HTML5 and adds
CSS classes ready to be selected by third-party stylesheets.
HTML ids have been added to block-level elements "article" for
direct reference of particular objects via URL.

Signed-off-by: Dan Luedtke <mail@danrl.de>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9b0c0b8b4ab4cd483158cfb606aaba038fbbabb5..97e037aa97a7a3d1f41c1a9645982b8c82023b8a 100755 (executable)
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -6,6 +6,7 @@ use strict;
 ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
 ## Copyright (C) 2001  Simon Huggins                             ##
 ## Copyright (C) 2005-2012  Randy Dunlap                         ##
+## Copyright (C) 2012  Dan Luedtke                               ##
 ##                                                              ##
 ## #define enhancements by Armin Kuster <akuster@mvista.com>    ##
 ## Copyright (c) 2000 MontaVista Software, Inc.                         ##
@@ -35,6 +36,8 @@ use strict;
 #              Small fixes (like spaces vs. \s in regex)
 # -- Tim Jansen <tim@tjansen.de>
 
+# 25/07/2012 - Added support for HTML5
+# -- Dan Luedtke <mail@danrl.de>
 
 #
 # This will read a 'c' file and scan for embedded comments in the
@@ -44,12 +47,16 @@ use strict;
 # Note: This only supports 'c'.
 
 # usage:
-# kernel-doc [ -docbook | -html | -text | -man | -list ] [ -no-doc-sections ]
-#           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
+# kernel-doc [ -docbook | -html | -html5 | -text | -man | -list ]
+#            [ -no-doc-sections ]
+#            [ -function funcname [ -function funcname ...] ]
+#            c file(s)s > outputfile
 # or
-#           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
+#            [ -nofunction funcname [ -function funcname ...] ]
+#            c file(s)s > outputfile
 #
-#  Set output format using one of -docbook -html -text or -man.  Default is man.
+#  Set output format using one of -docbook -html -html5 -text or -man.
+#  Default is man.
 #  The -list format is for internal use by docproc.
 #
 #  -no-doc-sections
@@ -182,6 +189,14 @@ my $local_lt = "\\\\\\\\lt:";
 my $local_gt = "\\\\\\\\gt:";
 my $blankline_html = $local_lt . "p" . $local_gt;      # was "<p>"
 
+# html version 5
+my %highlights_html5 = ( $type_constant, "<span class=\"const\">\$1</span>",
+                       $type_func, "<span class=\"func\">\$1</span>",
+                       $type_struct_xml, "<span class=\"struct\">\$1</span>",
+                       $type_env, "<span class=\"env\">\$1</span>",
+                       $type_param, "<span class=\"param\">\$1</span>" );
+my $blankline_html5 = $local_lt . "br /" . $local_gt;
+
 # XML, docbook format
 my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
                        $type_constant, "<constant>\$1</constant>",
@@ -309,6 +324,10 @@ while ($ARGV[0] =~ m/^-(.*)/) {
        $output_mode = "html";
        %highlights = %highlights_html;
        $blankline = $blankline_html;
+    } elsif ($cmd eq "-html5") {
+       $output_mode = "html5";
+       %highlights = %highlights_html5;
+       $blankline = $blankline_html5;
     } elsif ($cmd eq "-man") {
        $output_mode = "man";
        %highlights = %highlights_man;
@@ -351,10 +370,11 @@ while ($ARGV[0] =~ m/^-(.*)/) {
 # continue execution near EOF;
 
 sub usage {
-    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man | -list ]\n";
+    print "Usage: $0 [ -docbook | -html | -html5 | -text | -man | -list ]\n";
     print "         [ -no-doc-sections ]\n";
     print "         [ -function funcname [ -function funcname ...] ]\n";
     print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
+    print "         [ -v ]\n";
     print "         c source file(s) > outputfile\n";
     print "         -v : verbose output, more warnings & other info listed\n";
     exit 1;
@@ -448,7 +468,8 @@ sub output_highlight {
 #      confess "output_highlight got called with no args?\n";
 #   }
 
-    if ($output_mode eq "html" || $output_mode eq "xml") {
+    if ($output_mode eq "html" || $output_mode eq "html5" ||
+       $output_mode eq "xml") {
        $contents = local_unescape($contents);
        # convert data read & converted thru xml_escape() into &xyz; format:
        $contents =~ s/\\\\\\/\&/g;
@@ -458,6 +479,11 @@ sub output_highlight {
     die $@ if $@;
 #   print STDERR "contents af:$contents\n";
 
+#   strip whitespaces when generating html5
+    if ($output_mode eq "html5") {
+       $contents =~ s/^\s+//;
+       $contents =~ s/\s+$//;
+    }
     foreach $line (split "\n", $contents) {
        if ($line eq ""){
            print $lineprefix, local_unescape($blankline);
@@ -473,7 +499,7 @@ sub output_highlight {
     }
 }
 
-#output sections in html
+# output sections in html
 sub output_section_html(%) {
     my %args = %{$_[0]};
     my $section;
@@ -633,6 +659,239 @@ sub output_blockhead_html(%) {
     print "<hr>\n";
 }
 
+# output sections in html5
+sub output_section_html5(%) {
+    my %args = %{$_[0]};
+    my $section;
+
+    foreach $section (@{$args{'sectionlist'}}) {
+       print "<section>\n";
+       print "<h1>$section</h1>\n";
+       print "<p>\n";
+       output_highlight($args{'sections'}{$section});
+       print "</p>\n";
+       print "</section>\n";
+    }
+}
+
+# output enum in html5
+sub output_enum_html5(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    my $html5id;
+
+    $html5id = $args{'enum'};
+    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
+    print "<article class=\"enum\" id=\"enum:". $html5id . "\">";
+    print "<h1>enum " . $args{'enum'} . "</h1>\n";
+    print "<ol class=\"code\">\n";
+    print "<li>";
+    print "<span class=\"keyword\">enum</span> ";
+    print "<span class=\"identifier\">" . $args{'enum'} . "</span> {";
+    print "</li>\n";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       print "<li class=\"indent\">";
+       print "<span class=\"param\">" . $parameter . "</span>";
+       if ($count != $#{$args{'parameterlist'}}) {
+           $count++;
+           print ",";
+       }
+       print "</li>\n";
+    }
+    print "<li>};</li>\n";
+    print "</ol>\n";
+
+    print "<section>\n";
+    print "<h1>Constants</h1>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       print "<dt>" . $parameter . "</dt>\n";
+       print "<dd>";
+       output_highlight($args{'parameterdescs'}{$parameter});
+       print "</dd>\n";
+    }
+    print "</dl>\n";
+    print "</section>\n";
+    output_section_html5(@_);
+    print "</article>\n";
+}
+
+# output typedef in html5
+sub output_typedef_html5(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    my $html5id;
+
+    $html5id = $args{'typedef'};
+    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
+    print "<article class=\"typedef\" id=\"typedef:" . $html5id . "\">\n";
+    print "<h1>typedef " . $args{'typedef'} . "</h1>\n";
+
+    print "<ol class=\"code\">\n";
+    print "<li>";
+    print "<span class=\"keyword\">typedef</span> ";
+    print "<span class=\"identifier\">" . $args{'typedef'} . "</span>";
+    print "</li>\n";
+    print "</ol>\n";
+    output_section_html5(@_);
+    print "</article>\n";
+}
+
+# output struct in html5
+sub output_struct_html5(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $html5id;
+
+    $html5id = $args{'struct'};
+    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
+    print "<article class=\"struct\" id=\"struct:" . $html5id . "\">\n";
+    print "<hgroup>\n";
+    print "<h1>" . $args{'type'} . " " . $args{'struct'} . "</h1>";
+    print "<h2>". $args{'purpose'} . "</h2>\n";
+    print "</hgroup>\n";
+    print "<ol class=\"code\">\n";
+    print "<li>";
+    print "<span class=\"type\">" . $args{'type'} . "</span> ";
+    print "<span class=\"identifier\">" . $args{'struct'} . "</span> {";
+    print "</li>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       print "<li class=\"indent\">";
+       if ($parameter =~ /^#/) {
+               print "<span class=\"param\">" . $parameter ."</span>\n";
+               print "</li>\n";
+               next;
+       }
+       my $parameter_name = $parameter;
+       $parameter_name =~ s/\[.*//;
+
+       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+       $type = $args{'parametertypes'}{$parameter};
+       if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+           # pointer-to-function
+           print "<span class=\"type\">$1</span> ";
+           print "<span class=\"param\">$parameter</span>";
+           print "<span class=\"type\">)</span> ";
+           print "(<span class=\"args\">$2</span>);";
+       } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
+           # bitfield
+           print "<span class=\"type\">$1</span> ";
+           print "<span class=\"param\">$parameter</span>";
+           print "<span class=\"bits\">$2</span>;";
+       } else {
+           print "<span class=\"type\">$type</span> ";
+           print "<span class=\"param\">$parameter</span>;";
+       }
+       print "</li>\n";
+    }
+    print "<li>};</li>\n";
+    print "</ol>\n";
+
+    print "<section>\n";
+    print "<h1>Members</h1>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       ($parameter =~ /^#/) && next;
+
+       my $parameter_name = $parameter;
+       $parameter_name =~ s/\[.*//;
+
+       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+       print "<dt>" . $parameter . "</dt>\n";
+       print "<dd>";
+       output_highlight($args{'parameterdescs'}{$parameter_name});
+       print "</dd>\n";
+    }
+    print "</dl>\n";
+    print "</section>\n";
+    output_section_html5(@_);
+    print "</article>\n";
+}
+
+# output function in html5
+sub output_function_html5(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    my $html5id;
+
+    $html5id = $args{'function'};
+    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
+    print "<article class=\"function\" id=\"func:". $html5id . "\">\n";
+    print "<hgroup>\n";
+    print "<h1>" . $args{'function'} . "</h1>";
+    print "<h2>" . $args{'purpose'} . "</h2>\n";
+    print "</hgroup>\n";
+    print "<ol class=\"code\">\n";
+    print "<li>";
+    print "<span class=\"type\">" . $args{'functiontype'} . "</span> ";
+    print "<span class=\"identifier\">" . $args{'function'} . "</span> (";
+    print "</li>";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       print "<li class=\"indent\">";
+       $type = $args{'parametertypes'}{$parameter};
+       if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+           # pointer-to-function
+           print "<span class=\"type\">$1</span> ";
+           print "<span class=\"param\">$parameter</span>";
+           print "<span class=\"type\">)</span> ";
+           print "(<span class=\"args\">$2</span>)";
+       } else {
+           print "<span class=\"type\">$type</span> ";
+           print "<span class=\"param\">$parameter</span>";
+       }
+       if ($count != $#{$args{'parameterlist'}}) {
+           $count++;
+           print ",";
+       }
+       print "</li>\n";
+    }
+    print "<li>)</li>\n";
+    print "</ol>\n";
+
+    print "<section>\n";
+    print "<h1>Arguments</h1>\n";
+    print "<p>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+       my $parameter_name = $parameter;
+       $parameter_name =~ s/\[.*//;
+
+       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+       print "<dt>" . $parameter . "</dt>\n";
+       print "<dd>";
+       output_highlight($args{'parameterdescs'}{$parameter_name});
+       print "</dd>\n";
+    }
+    print "</dl>\n";
+    print "</section>\n";
+    output_section_html5(@_);
+    print "</article>\n";
+}
+
+# output DOC: block header in html5
+sub output_blockhead_html5(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    my $html5id;
+
+    foreach $section (@{$args{'sectionlist'}}) {
+       $html5id = $section;
+       $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
+       print "<article class=\"doc\" id=\"doc:". $html5id . "\">\n";
+       print "<h1>$section</h1>\n";
+       print "<p>\n";
+       output_highlight($args{'sections'}{$section});
+       print "</p>\n";
+    }
+    print "</article>\n";
+}
+
 sub output_section_xml(%) {
     my %args = %{$_[0]};
     my $section;