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authorRandy Dunlap <randy.dunlap@oracle.com>2007-10-16 23:31:20 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:43:05 -0700
commit6b5b55f6c404fa730a09a8254eb19f5a038afcc2 (patch)
tree7d8398dbe550f13dcd2c6fb8116dc7393bfd2f2b /scripts/kernel-doc
parent51448e2ad72c3cdb50e4118edc47fbcbcc1d03d3 (diff)
kernel-doc: fix doc blocks and html
Johannes Berg reports (Thanks!) that &struct names are not highlighted in html output format when they are inside a DOC: block. DOC: blocks were not escaped thru xml_escape() like other kernel-doc comments were. Fixed that. However, that left a problem with <p> ($blankline_html) being processed thru xml_escape(), converting it to &lt;p&gt;, which isn't good for the generated html output (the <p> should remain unchanged), so this patch also introduces the notion of "local" kernel-doc meta-characters ('\\\\mnemonic:'), which are converted to html just before writing the stream to its output file. Please report any problems that you (anyone) see in "highlighting" in any output mode (text, man, html, xml). Also update copyright to include me. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/kernel-doc')
-rwxr-xr-xscripts/kernel-doc41
1 files changed, 32 insertions, 9 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 1f5835115cad..1d1401807e95 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. ##
@@ -161,7 +162,7 @@ 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.
@@ -173,7 +174,9 @@ 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" . $local_gt; # was "<p>"
# XML, docbook format
my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
@@ -391,17 +394,19 @@ sub output_highlight {
# confess "output_highlight got called with no args?\n";
# }
+ if ($output_mode eq "html") {
+ $contents = local_unescape($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 ".") {
@@ -1752,7 +1757,13 @@ 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") || ($output_mode eq "man")) {
@@ -1764,6 +1775,18 @@ sub xml_escape($) {
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 $identifier;
@@ -1903,7 +1926,7 @@ sub process_file($) {
} elsif ($state == 4) {
# Documentation block
if (/$doc_block/) {
- dump_section($section, $contents);
+ dump_section($section, xml_escape($contents));
output_intro({'sectionlist' => \@sectionlist,
'sections' => \%sections });
$contents = "";
@@ -1923,7 +1946,7 @@ sub process_file($) {
}
elsif (/$doc_end/)
{
- dump_section($section, $contents);
+ dump_section($section, xml_escape($contents));
output_intro({'sectionlist' => \@sectionlist,
'sections' => \%sections });
$contents = "";

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