X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=scripts%2Fkernel-doc;h=ec54f12f57b04c10b6f24f7aa561afccb3fba0b7;hb=3010f8caa48ed38679cc32b0d8e84b82cb8d9980;hp=1f5835115cad03b3932dd12225fbe1f3dced2a69;hpb=f745bb1c73e2395e6b9961d4d915a8f8e2cd32cd;p=linux-2.6-omap-h63xx.git

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 1f5835115ca..ec54f12f57b 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -5,6 +5,7 @@ use strict;
 ## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
 ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
 ## Copyright (C) 2001  Simon Huggins                             ##
+## Copyright (C) 2005-2007  Randy Dunlap                         ##
 ## 								 ##
 ## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
 ## Copyright (c) 2000 MontaVista Software, Inc.			 ##
@@ -45,21 +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
 #
@@ -161,7 +165,7 @@ my $type_constant = '\%([-_\w]+)';
 my $type_func = '(\w+)\(\)';
 my $type_param = '\@(\w+)';
 my $type_struct = '\&((struct\s*)*[_\w]+)';
-my $type_struct_xml = '\\\amp;((struct\s*)*[_\w]+)';
+my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
 my $type_env = '(\$\w+)';
 
 # Output conversion substitutions.
@@ -173,16 +177,18 @@ my %highlights_html = ( $type_constant, "<i>\$1</i>",
 			$type_struct_xml, "<i>\$1</i>",
 			$type_env, "<b><i>\$1</i></b>",
 			$type_param, "<tt><b>\$1</b></tt>" );
-my $blankline_html = "<p>";
+my $local_lt = "\\\\\\\\lt:";
+my $local_gt = "\\\\\\\\gt:";
+my $blankline_html = $local_lt . "p" . $local_gt;	# was "<p>"
 
 # XML, docbook format
 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>",
@@ -208,7 +214,7 @@ my $blankline_text = "";
 
 
 sub usage {
-    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ]\n";
+    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -no-doc-sections ]\n";
     print "         [ -function funcname [ -function funcname ...] ]\n";
     print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
     print "         c source file(s) > outputfile\n";
@@ -222,6 +228,7 @@ if ($#ARGV==-1) {
 
 my $verbose = 0;
 my $output_mode = "man";
+my $no_doc_sections = 0;
 my %highlights = %highlights_man;
 my $blankline = $blankline_man;
 my $modulename = "Kernel API";
@@ -326,12 +333,14 @@ while ($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'};
@@ -370,6 +379,29 @@ 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
 #
@@ -391,17 +423,19 @@ sub output_highlight {
 #	confess "output_highlight got called with no args?\n";
 #   }
 
+    if ($output_mode eq "html" || $output_mode eq "xml") {
+	$contents = local_unescape($contents);
+	# convert data read & converted thru xml_escape() into &xyz; format:
+	$contents =~ s/\\\\\\/&/g;
+    }
 #   print STDERR "contents b4:$contents\n";
     eval $dohighlight;
     die $@ if $@;
-    if ($output_mode eq "html") {
-	$contents =~ s/\\\\//;
-    }
 #   print STDERR "contents af:$contents\n";
 
     foreach $line (split "\n", $contents) {
 	if ($line eq ""){
-	    print $lineprefix, $blankline;
+	    print $lineprefix, local_unescape($blankline);
 	} else {
 	    $line =~ s/\\\\\\/\&/g;
 	    if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
@@ -559,8 +593,8 @@ 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;
@@ -866,7 +900,7 @@ sub output_typedef_xml(%) {
 }
 
 # output in XML DocBook
-sub output_intro_xml(%) {
+sub output_blockhead_xml(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $count;
@@ -877,15 +911,23 @@ 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";
@@ -1132,7 +1174,7 @@ sub output_typedef_man(%) {
     }
 }
 
-sub output_intro_man(%) {
+sub output_blockhead_man(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $count;
@@ -1289,7 +1331,7 @@ sub output_struct_text(%) {
     output_section_text(@_);
 }
 
-sub output_intro_text(%) {
+sub output_blockhead_text(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
 
@@ -1320,9 +1362,9 @@ 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++;
 }
@@ -1752,7 +1794,13 @@ sub process_state3_type($$) {
     }
 }
 
-# replace <, >, and &
+# xml_escape: replace <, >, and & in the text stream;
+#
+# however, formatting controls that are generated internally/locally in the
+# kernel-doc script are not escaped here; instead, they begin life like
+# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
+# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
+# just before actual output; (this is done by local_unescape())
 sub xml_escape($) {
 	my $text = shift;
 	if (($output_mode eq "text") || ($output_mode eq "man")) {
@@ -1764,6 +1812,18 @@ sub xml_escape($) {
 	return $text;
 }
 
+# convert local escape strings to html
+# local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
+sub local_unescape($) {
+	my $text = shift;
+	if (($output_mode eq "text") || ($output_mode eq "man")) {
+		return $text;
+	}
+	$text =~ s/\\\\\\\\lt:/</g;
+	$text =~ s/\\\\\\\\gt:/>/g;
+	return $text;
+}
+
 sub process_file($) {
     my $file;
     my $identifier;
@@ -1903,9 +1963,7 @@ sub process_file($) {
 	} elsif ($state == 4) {
 		# Documentation block
 		if (/$doc_block/) {
-			dump_section($section, $contents);
-			output_intro({'sectionlist' => \@sectionlist,
-				      'sections' => \%sections });
+			dump_doc_section($section, xml_escape($contents));
 			$contents = "";
 			$function = "";
 			%constants = ();
@@ -1923,9 +1981,7 @@ sub process_file($) {
 		}
 		elsif (/$doc_end/)
 		{
-			dump_section($section, $contents);
-			output_intro({'sectionlist' => \@sectionlist,
-				      'sections' => \%sections });
+			dump_doc_section($section, xml_escape($contents));
 			$contents = "";
 			$function = "";
 			%constants = ();