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kernel-doc: produce RestructuredText output
If given the -rst flag, output will now be in RestructuredText. Various glitches to be worked out yet. In the end I decided not to use RST section headings within the kerneldoc comments. gpu.tmpl already has headings five levels deep; adding more is not going to bring clarity. This is really just Jani Nikula's asciidoc change with the serial numbers filed off. It's a hack job that doubtless needs a lot of cleaning up. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Jonathan Corbet
parent
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commit
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@ -55,6 +55,7 @@ Output format selection (mutually exclusive):
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-html5 Output HTML5 format.
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-list Output symbol list format. This is for use by docproc.
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-man Output troff manual page format. This is the default.
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-rst Output reStructuredText format.
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-text Output plain text format.
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Output selection (mutually exclusive):
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@ -203,6 +204,8 @@ my $type_param = '\@(\w+)';
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my $type_struct = '\&((struct\s*)*[_\w]+)';
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my $type_struct_xml = '\\&((struct\s*)*[_\w]+)';
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my $type_env = '(\$\w+)';
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my $type_enum_full = '\&(enum)\s*([_\w]+)';
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my $type_struct_full = '\&(struct)\s*([_\w]+)';
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# Output conversion substitutions.
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# One for each output format
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@ -268,6 +271,17 @@ my @highlights_text = (
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);
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my $blankline_text = "";
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# rst-mode
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my @highlights_rst = (
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[$type_constant, "``\$1``"],
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[$type_func, "\\:c\\:func\\:`\$1`"],
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[$type_struct_full, "\\:ref\\:`\$1 \$2`"],
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[$type_enum_full, "\\:ref\\:`\$1 \$2`"],
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[$type_struct, "\\:ref\\:`struct \$1`"],
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[$type_param, "**\$1**"]
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);
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my $blankline_rst = "\n";
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# list mode
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my @highlights_list = (
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[$type_constant, "\$1"],
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@ -404,6 +418,10 @@ while ($ARGV[0] =~ m/^-(.*)/) {
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$output_mode = "text";
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@highlights = @highlights_text;
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$blankline = $blankline_text;
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} elsif ($cmd eq "-rst") {
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$output_mode = "rst";
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@highlights = @highlights_rst;
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$blankline = $blankline_rst;
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} elsif ($cmd eq "-docbook") {
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$output_mode = "xml";
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@highlights = @highlights_xml;
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@ -1704,6 +1722,209 @@ sub output_blockhead_text(%) {
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}
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}
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##
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# output in restructured text
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#
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#
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# This could use some work; it's used to output the DOC: sections, and
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# starts by putting out the name of the doc section itself, but that tends
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# to duplicate a header already in the template file.
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#
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sub output_blockhead_rst(%) {
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my %args = %{$_[0]};
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my ($parameter, $section);
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foreach $section (@{$args{'sectionlist'}}) {
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print "**$section**\n\n";
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output_highlight_rst($args{'sections'}{$section});
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print "\n";
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}
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}
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sub output_highlight_rst {
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my $contents = join "\n",@_;
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my $line;
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# undo the evil effects of xml_escape() earlier
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$contents = xml_unescape($contents);
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eval $dohighlight;
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die $@ if $@;
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foreach $line (split "\n", $contents) {
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if ($line eq "") {
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print $lineprefix, $blankline;
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} else {
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$line =~ s/\\\\\\/\&/g;
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print $lineprefix, $line;
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}
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print "\n";
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}
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}
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sub output_function_rst(%) {
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my %args = %{$_[0]};
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my ($parameter, $section);
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my $start;
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print ".. c:function:: ";
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if ($args{'functiontype'} ne "") {
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$start = $args{'functiontype'} . " " . $args{'function'} . " (";
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} else {
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$start = $args{'function'} . " (";
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}
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print $start;
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my $count = 0;
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foreach my $parameter (@{$args{'parameterlist'}}) {
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if ($count ne 0) {
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print ", ";
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}
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$count++;
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$type = $args{'parametertypes'}{$parameter};
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if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
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# pointer-to-function
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print $1 . $parameter . ") (" . $2;
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} else {
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print $type . " " . $parameter;
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}
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}
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print ")\n\n " . $args{'purpose'} . "\n\n";
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print ":Parameters:\n\n";
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foreach $parameter (@{$args{'parameterlist'}}) {
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my $parameter_name = $parameter;
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#$parameter_name =~ s/\[.*//;
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$type = $args{'parametertypes'}{$parameter};
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if ($type ne "") {
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print " ``$type $parameter``\n";
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} else {
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print " ``$parameter``\n";
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}
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if ($args{'parameterdescs'}{$parameter_name} ne $undescribed) {
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my $oldprefix = $lineprefix;
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$lineprefix = " ";
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output_highlight_rst($args{'parameterdescs'}{$parameter_name});
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$lineprefix = $oldprefix;
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} else {
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print "\n _undescribed_\n";
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}
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print "\n";
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}
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output_section_rst(@_);
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}
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sub output_section_rst(%) {
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my %args = %{$_[0]};
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my $section;
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my $oldprefix = $lineprefix;
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$lineprefix = " ";
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foreach $section (@{$args{'sectionlist'}}) {
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print ":$section:\n\n";
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output_highlight_rst($args{'sections'}{$section});
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print "\n";
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}
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print "\n";
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$lineprefix = $oldprefix;
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}
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sub output_enum_rst(%) {
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my %args = %{$_[0]};
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my ($parameter);
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my $count;
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my $name = "enum " . $args{'enum'};
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print ".. _" . $name . ":\n\n";
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print "**$name**\n\n";
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print " " . $args{'purpose'} . "\n\n";
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print "..\n\n:Constants:\n\n";
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my $oldprefix = $lineprefix;
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$lineprefix = " ";
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foreach $parameter (@{$args{'parameterlist'}}) {
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print " `$parameter`\n";
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if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
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output_highlight_rst($args{'parameterdescs'}{$parameter});
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} else {
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print " undescribed\n";
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}
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print "\n";
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}
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$lineprefix = $oldprefix;
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output_section_rst(@_);
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}
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sub output_typedef_rst(%) {
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my %args = %{$_[0]};
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my ($parameter);
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my $count;
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my $name = "typedef " . $args{'typedef'};
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print "**$name**\n\n";
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print $args{'purpose'} . "\n\n";
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output_section_rst(@_);
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}
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sub output_struct_rst(%) {
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my %args = %{$_[0]};
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my ($parameter);
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my $name = $args{'type'} . " " . $args{'struct'};
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print ".. _" . $name . ":\n\n";
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print "**$name**\n\n";
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print " " . $args{'purpose'} . "\n\n";
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print ":Definition:\n\n";
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print " ::\n\n";
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print " " . $args{'type'} . " " . $args{'struct'} . " {\n";
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foreach $parameter (@{$args{'parameterlist'}}) {
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if ($parameter =~ /^#/) {
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print " " . "$parameter\n";
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next;
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}
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my $parameter_name = $parameter;
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$parameter_name =~ s/\[.*//;
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($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
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$type = $args{'parametertypes'}{$parameter};
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if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
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# pointer-to-function
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print " $1 $parameter) ($2);\n";
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} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
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# bitfield
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print " $1 $parameter$2;\n";
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} else {
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print " " . $type . " " . $parameter . ";\n";
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}
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}
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print " };\n\n";
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print ":Members:\n\n";
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foreach $parameter (@{$args{'parameterlist'}}) {
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($parameter =~ /^#/) && next;
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my $parameter_name = $parameter;
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$parameter_name =~ s/\[.*//;
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($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
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$type = $args{'parametertypes'}{$parameter};
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print " `$type $parameter`" . "\n";
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my $oldprefix = $lineprefix;
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$lineprefix = " ";
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output_highlight_rst($args{'parameterdescs'}{$parameter_name});
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$lineprefix = $oldprefix;
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print "\n";
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}
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print "\n";
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output_section_rst(@_);
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}
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## list mode output functions
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sub output_function_list(%) {
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@ -2405,6 +2626,18 @@ sub xml_escape($) {
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return $text;
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}
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# xml_unescape: reverse the effects of xml_escape
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sub xml_unescape($) {
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my $text = shift;
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if (($output_mode eq "text") || ($output_mode eq "man")) {
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return $text;
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}
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$text =~ s/\\\\\\amp;/\&/g;
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$text =~ s/\\\\\\lt;/</g;
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$text =~ s/\\\\\\gt;/>/g;
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return $text;
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}
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# convert local escape strings to html
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# local escape strings look like: '\\\\menmonic:' (that's 4 backslashes)
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sub local_unescape($) {
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