Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6

[sfrench/cifs-2.6.git] / scripts / kernel-doc

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 1d1401807e95809a43e2b72c84ee17d4be2854e8..74c2f9db2aac06586f25a1397c94de5325a2b509 100755 (executable)
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -46,21 +46,24 @@ use strict;
 # Note: This only supports 'c'.
 
 # usage:
-# kernel-doc [ -docbook | -html | -text | -man ]
+# kernel-doc [ -docbook | -html | -text | -man ] [ -no-doc-sections ]
 #           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
 # or
 #           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
 #
 #  Set output format using one of -docbook -html -text or -man.  Default is man.
 #
+#  -no-doc-sections
+#      Do not output DOC: sections
+#
 #  -function funcname
-#      If set, then only generate documentation for the given function(s).  All
-#      other functions are ignored.
+#      If set, then only generate documentation for the given function(s) or
+#      DOC: section titles.  All other functions and DOC: sections are ignored.
 #
 #  -nofunction funcname
-#      If set, then only generate documentation for the other function(s).
-#      Cannot be used together with -function
-#      (yes, that's a bug -- perl hackers can fix it 8))
+#      If set, then only generate documentation for the other function(s)/DOC:
+#      sections. Cannot be used together with -function (yes, that's a bug --
+#      perl hackers can fix it 8))
 #
 #  c files - list of 'c' files to process
 #
@@ -182,10 +185,10 @@ my $blankline_html = $local_lt . "p" . $local_gt; # was "<p>"
 my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
                        $type_constant, "<constant>\$1</constant>",
                        $type_func, "<function>\$1</function>",
-                       $type_struct, "<structname>\$1</structname>",
+                       $type_struct_xml, "<structname>\$1</structname>",
                        $type_env, "<envar>\$1</envar>",
                        $type_param, "<parameter>\$1</parameter>" );
-my $blankline_xml = "</para><para>\n";
+my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
 
 # gnome, docbook format
 my %highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
@@ -211,10 +214,11 @@ my $blankline_text = "";
 
 
 sub usage {
-    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ]\n";
+    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -no-doc-sections ]\n";
     print "         [ -function funcname [ -function funcname ...] ]\n";
     print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
     print "         c source file(s) > outputfile\n";
+    print "         -v : verbose output, more warnings & other info listed\n";
     exit 1;
 }
 
@@ -225,6 +229,7 @@ if ($#ARGV==-1) {
 
 my $verbose = 0;
 my $output_mode = "man";
+my $no_doc_sections = 0;
 my %highlights = %highlights_man;
 my $blankline = $blankline_man;
 my $modulename = "Kernel API";
@@ -329,12 +334,14 @@ while ($ARGV[0] =~ m/^-(.*)/) {
        usage();
     } elsif ($cmd eq '-filelist') {
            $filelist = shift @ARGV;
+    } elsif ($cmd eq '-no-doc-sections') {
+           $no_doc_sections = 1;
     }
 }
 
 # get kernel version from env
 sub get_kernel_version() {
-    my $version;
+    my $version = 'unknown kernel version';
 
     if (defined($ENV{'KERNELVERSION'})) {
        $version = $ENV{'KERNELVERSION'};
@@ -373,6 +380,29 @@ sub dump_section {
     }
 }
 
+##
+# dump DOC: section after checking that it should go out
+#
+sub dump_doc_section {
+    my $name = shift;
+    my $contents = join "\n", @_;
+
+    if ($no_doc_sections) {
+        return;
+    }
+
+    if (($function_only == 0) ||
+       ( $function_only == 1 && defined($function_table{$name})) ||
+       ( $function_only == 2 && !defined($function_table{$name})))
+    {
+       dump_section $name, $contents;
+       output_blockhead({'sectionlist' => \@sectionlist,
+                         'sections' => \%sections,
+                         'module' => $modulename,
+                         'content-only' => ($function_only != 0), });
+    }
+}
+
 ##
 # output function
 #
@@ -394,7 +424,7 @@ sub output_highlight {
 #      confess "output_highlight got called with no args?\n";
 #   }
 
-    if ($output_mode eq "html") {
+    if ($output_mode eq "html" || $output_mode eq "xml") {
        $contents = local_unescape($contents);
        # convert data read & converted thru xml_escape() into &xyz; format:
        $contents =~ s/\\\\\\/&/g;
@@ -564,8 +594,8 @@ sub output_function_html(%) {
     print "<hr>\n";
 }
 
-# output intro in html
-sub output_intro_html(%) {
+# output DOC: block header in html
+sub output_blockhead_html(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $count;
@@ -871,7 +901,7 @@ sub output_typedef_xml(%) {
 }
 
 # output in XML DocBook
-sub output_intro_xml(%) {
+sub output_blockhead_xml(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $count;
@@ -882,15 +912,23 @@ sub output_intro_xml(%) {
     # print out each section
     $lineprefix="   ";
     foreach $section (@{$args{'sectionlist'}}) {
-       print "<refsect1>\n <title>$section</title>\n <para>\n";
+       if (!$args{'content-only'}) {
+               print "<refsect1>\n <title>$section</title>\n";
+       }
        if ($section =~ m/EXAMPLE/i) {
            print "<example><para>\n";
+       } else {
+           print "<para>\n";
        }
        output_highlight($args{'sections'}{$section});
        if ($section =~ m/EXAMPLE/i) {
            print "</para></example>\n";
+       } else {
+           print "</para>";
+       }
+       if (!$args{'content-only'}) {
+               print "\n</refsect1>\n";
        }
-       print " </para>\n</refsect1>\n";
     }
 
     print "\n\n";
@@ -1137,7 +1175,7 @@ sub output_typedef_man(%) {
     }
 }
 
-sub output_intro_man(%) {
+sub output_blockhead_man(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $count;
@@ -1294,7 +1332,7 @@ sub output_struct_text(%) {
     output_section_text(@_);
 }
 
-sub output_intro_text(%) {
+sub output_blockhead_text(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
 
@@ -1325,9 +1363,9 @@ sub output_declaration {
 
 ##
 # generic output function - calls the right one based on current output mode.
-sub output_intro {
+sub output_blockhead {
     no strict 'refs';
-    my $func = "output_intro_".$output_mode;
+    my $func = "output_blockhead_".$output_mode;
     &$func(@_);
     $section_counter++;
 }
@@ -1474,13 +1512,13 @@ sub create_parameterlist($$$) {
            # corresponding data structures "correctly". Catch it later in
            # output_* subs.
            push_parameter($arg, "", $file);
-       } elsif ($arg =~ m/\(.*\*/) {
+       } elsif ($arg =~ m/\(.+\)\s*\(/) {
            # pointer-to-function
            $arg =~ tr/#/,/;
-           $arg =~ m/[^\(]+\(\*\s*([^\)]+)\)/;
+           $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
            $param = $1;
            $type = $arg;
-           $type =~ s/([^\(]+\(\*)$param/$1/;
+           $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
            push_parameter($param, $type, $file);
        } elsif ($arg) {
            $arg =~ s/\s*:\s*/:/g;
@@ -1586,7 +1624,6 @@ sub dump_function($$) {
 
     $prototype =~ s/^static +//;
     $prototype =~ s/^extern +//;
-    $prototype =~ s/^fastcall +//;
     $prototype =~ s/^asmlinkage +//;
     $prototype =~ s/^inline +//;
     $prototype =~ s/^__inline__ +//;
@@ -1617,7 +1654,7 @@ sub dump_function($$) {
        $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
        $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
        $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-       $prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+       $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
        $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
        $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
        $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
@@ -1844,6 +1881,13 @@ sub process_file($) {
                } else {
                    $declaration_purpose = "";
                }
+
+               if (($declaration_purpose eq "") && $verbose) {
+                       print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
+                       print STDERR $_;
+                       ++$warnings;
+               }
+
                if ($identifier =~ m/^struct/) {
                    $decl_type = 'struct';
                } elsif ($identifier =~ m/^union/) {
@@ -1870,7 +1914,7 @@ sub process_file($) {
                $newsection = $1;
                $newcontents = $2;
 
-               if ($contents ne "") {
+               if (($contents ne "") && ($contents ne "\n")) {
                    if (!$in_doc_sect && $verbose) {
                        print STDERR "Warning(${file}:$.): contents before sections\n";
                        ++$warnings;
@@ -1926,9 +1970,7 @@ sub process_file($) {
        } elsif ($state == 4) {
                # Documentation block
                if (/$doc_block/) {
-                       dump_section($section, xml_escape($contents));
-                       output_intro({'sectionlist' => \@sectionlist,
-                                     'sections' => \%sections });
+                       dump_doc_section($section, xml_escape($contents));
                        $contents = "";
                        $function = "";
                        %constants = ();
@@ -1946,9 +1988,7 @@ sub process_file($) {
                }
                elsif (/$doc_end/)
                {
-                       dump_section($section, xml_escape($contents));
-                       output_intro({'sectionlist' => \@sectionlist,
-                                     'sections' => \%sections });
+                       dump_doc_section($section, xml_escape($contents));
                        $contents = "";
                        $function = "";
                        %constants = ();