docs: kernel-doc: Get rid of xml_escape() and friends
XML escaping is a worry that came with DocBook, which we no longer have any dealings with. So get rid of the useless xml_escape()/xml_unescape() functions. No change to the generated output. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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@ -553,10 +553,9 @@ sub output_highlight {
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}
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if ($line eq ""){
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if (! $output_preformatted) {
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print $lineprefix, local_unescape($blankline);
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print $lineprefix, $blankline;
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}
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} else {
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$line =~ s/\\\\\\/\&/g;
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if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
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print "\\&$line";
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} else {
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@ -751,9 +750,6 @@ 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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@ -1422,8 +1418,6 @@ sub push_parameter($$$$) {
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}
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}
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$param = xml_escape($param);
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# strip spaces from $param so that it is one continuous string
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# on @parameterlist;
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# this fixes a problem where check_sections() cannot find
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@ -1748,47 +1742,6 @@ sub process_proto_type($$) {
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}
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}
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# xml_escape: replace <, >, and & in the text stream;
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#
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# however, formatting controls that are generated internally/locally in the
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# kernel-doc script are not escaped here; instead, they begin life like
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# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
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# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
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# just before actual output; (this is done by local_unescape())
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sub xml_escape($) {
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my $text = shift;
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if ($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 $text;
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}
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# xml_unescape: reverse the effects of xml_escape
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sub xml_unescape($) {
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my $text = shift;
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if ($output_mode eq "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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my $text = shift;
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if ($output_mode eq "man") {
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return $text;
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}
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$text =~ s/\\\\\\\\lt:/</g;
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$text =~ s/\\\\\\\\gt:/>/g;
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return $text;
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}
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sub map_filename($) {
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my $file;
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@ -1889,7 +1842,7 @@ sub process_file($) {
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$descr =~ s/^\s*//;
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$descr =~ s/\s*$//;
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$descr =~ s/\s+/ /g;
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$declaration_purpose = xml_escape($descr);
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$declaration_purpose = $descr;
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$in_purpose = 1;
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} else {
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$declaration_purpose = "";
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@ -1944,7 +1897,7 @@ sub process_file($) {
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print STDERR "${file}:$.: warning: contents before sections\n";
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++$warnings;
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}
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dump_section($file, $section, xml_escape($contents));
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dump_section($file, $section, $contents);
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$section = $section_default;
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}
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@ -1962,7 +1915,7 @@ sub process_file($) {
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$leading_space = undef;
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} elsif (/$doc_end/) {
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if (($contents ne "") && ($contents ne "\n")) {
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dump_section($file, $section, xml_escape($contents));
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dump_section($file, $section, $contents);
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$section = $section_default;
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$contents = "";
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}
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@ -1981,7 +1934,7 @@ sub process_file($) {
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# @parameter line to signify start of description
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if ($1 eq "") {
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if ($section =~ m/^@/ || $section eq $section_context) {
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dump_section($file, $section, xml_escape($contents));
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dump_section($file, $section, $contents);
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$section = $section_default;
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$contents = "";
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$new_start_line = $.;
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@ -1992,7 +1945,7 @@ sub process_file($) {
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} elsif ($in_purpose == 1) {
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# Continued declaration purpose
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chomp($declaration_purpose);
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$declaration_purpose .= " " . xml_escape($1);
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$declaration_purpose .= " " . $1;
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$declaration_purpose =~ s/\s+/ /g;
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} else {
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my $cont = $1;
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@ -2030,7 +1983,7 @@ sub process_file($) {
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# Documentation block end */
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} elsif (/$doc_inline_end/) {
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if (($contents ne "") && ($contents ne "\n")) {
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dump_section($file, $section, xml_escape($contents));
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dump_section($file, $section, $contents);
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$section = $section_default;
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$contents = "";
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}
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@ -2057,7 +2010,7 @@ sub process_file($) {
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$contents = $2;
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if ($contents ne "") {
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$contents .= "\n";
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dump_section($file, $section, xml_escape($contents));
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dump_section($file, $section, $contents);
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$section = $section_default;
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$contents = "";
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}
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@ -2072,7 +2025,7 @@ sub process_file($) {
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} elsif ($state == STATE_DOCBLOCK) {
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if (/$doc_end/)
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{
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dump_doc_section($file, $section, xml_escape($contents));
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dump_doc_section($file, $section, $contents);
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$section = $section_default;
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$contents = "";
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$function = "";
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