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docs: kernel-doc: Move STATE_BODY processing to a separate function
Also group the pseudo-global $leading_space variable with its peers. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Jonathan Corbet
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3cac2bc41d
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d742f24d6c
@ -336,6 +336,7 @@ use constant {
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};
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my $state;
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my $in_doc_sect;
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my $leading_space;
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# Inline documentation state
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use constant {
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@ -1865,12 +1866,110 @@ sub process_name($$) {
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}
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}
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#
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# STATE_BODY and STATE_BODY_MAYBE: the bulk of a kerneldoc comment.
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#
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sub process_body($$) {
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my $file = shift;
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if (/$doc_sect/i) { # case insensitive for supported section names
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$newsection = $1;
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$newcontents = $2;
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# map the supported section names to the canonical names
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if ($newsection =~ m/^description$/i) {
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$newsection = $section_default;
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} elsif ($newsection =~ m/^context$/i) {
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$newsection = $section_context;
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} elsif ($newsection =~ m/^returns?$/i) {
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$newsection = $section_return;
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} elsif ($newsection =~ m/^\@return$/) {
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# special: @return is a section, not a param description
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$newsection = $section_return;
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}
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if (($contents ne "") && ($contents ne "\n")) {
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if (!$in_doc_sect && $verbose) {
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print STDERR "${file}:$.: warning: contents before sections\n";
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++$warnings;
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}
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dump_section($file, $section, $contents);
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$section = $section_default;
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}
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$in_doc_sect = 1;
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$state = STATE_BODY;
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$contents = $newcontents;
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$new_start_line = $.;
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while (substr($contents, 0, 1) eq " ") {
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$contents = substr($contents, 1);
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}
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if ($contents ne "") {
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$contents .= "\n";
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}
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$section = $newsection;
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$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, $contents);
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$section = $section_default;
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$contents = "";
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}
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# look for doc_com + <text> + doc_end:
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if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
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print STDERR "${file}:$.: warning: suspicious ending line: $_";
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++$warnings;
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}
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$prototype = "";
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$state = STATE_PROTO;
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$brcount = 0;
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} elsif (/$doc_content/) {
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# miguel-style comment kludge, look for blank lines after
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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, $contents);
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$section = $section_default;
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$contents = "";
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$new_start_line = $.;
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} else {
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$contents .= "\n";
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}
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$state = STATE_BODY;
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} elsif ($state == STATE_BODY_MAYBE) {
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# Continued declaration purpose
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chomp($declaration_purpose);
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$declaration_purpose .= " " . $1;
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$declaration_purpose =~ s/\s+/ /g;
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} else {
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my $cont = $1;
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if ($section =~ m/^@/ || $section eq $section_context) {
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if (!defined $leading_space) {
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if ($cont =~ m/^(\s+)/) {
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$leading_space = $1;
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} else {
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$leading_space = "";
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}
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}
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$cont =~ s/^$leading_space//;
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}
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$contents .= $cont . "\n";
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}
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} else {
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# i dont know - bad line? ignore.
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print STDERR "${file}:$.: warning: bad line: $_";
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++$warnings;
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}
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}
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sub process_file($) {
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my $file;
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my $func;
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my $initial_section_counter = $section_counter;
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my ($orig_file) = @_;
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my $leading_space;
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$file = map_filename($orig_file);
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@ -1894,97 +1993,7 @@ sub process_file($) {
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} elsif ($state == STATE_NAME) {
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process_name($file, $_);
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} elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE) {
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if (/$doc_sect/i) { # case insensitive for supported section names
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$newsection = $1;
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$newcontents = $2;
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# map the supported section names to the canonical names
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if ($newsection =~ m/^description$/i) {
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$newsection = $section_default;
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} elsif ($newsection =~ m/^context$/i) {
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$newsection = $section_context;
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} elsif ($newsection =~ m/^returns?$/i) {
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$newsection = $section_return;
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} elsif ($newsection =~ m/^\@return$/) {
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# special: @return is a section, not a param description
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$newsection = $section_return;
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}
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if (($contents ne "") && ($contents ne "\n")) {
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if (!$in_doc_sect && $verbose) {
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print STDERR "${file}:$.: warning: contents before sections\n";
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++$warnings;
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}
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dump_section($file, $section, $contents);
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$section = $section_default;
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}
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$in_doc_sect = 1;
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$state = STATE_BODY;
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$contents = $newcontents;
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$new_start_line = $.;
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while (substr($contents, 0, 1) eq " ") {
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$contents = substr($contents, 1);
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}
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if ($contents ne "") {
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$contents .= "\n";
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}
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$section = $newsection;
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$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, $contents);
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$section = $section_default;
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$contents = "";
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}
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# look for doc_com + <text> + doc_end:
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if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
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print STDERR "${file}:$.: warning: suspicious ending line: $_";
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++$warnings;
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}
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$prototype = "";
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$state = STATE_PROTO;
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$brcount = 0;
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# print STDERR "end of doc comment, looking for prototype\n";
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} elsif (/$doc_content/) {
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# miguel-style comment kludge, look for blank lines after
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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, $contents);
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$section = $section_default;
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$contents = "";
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$new_start_line = $.;
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} else {
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$contents .= "\n";
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}
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$state = STATE_BODY;
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} elsif ($state == STATE_BODY_MAYBE) {
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# Continued declaration purpose
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chomp($declaration_purpose);
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$declaration_purpose .= " " . $1;
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$declaration_purpose =~ s/\s+/ /g;
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} else {
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my $cont = $1;
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if ($section =~ m/^@/ || $section eq $section_context) {
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if (!defined $leading_space) {
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if ($cont =~ m/^(\s+)/) {
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$leading_space = $1;
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} else {
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$leading_space = "";
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}
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}
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$cont =~ s/^$leading_space//;
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}
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$contents .= $cont . "\n";
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}
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} else {
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# i dont know - bad line? ignore.
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print STDERR "${file}:$.: warning: bad line: $_";
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++$warnings;
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}
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process_body($file, $_);
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} elsif ($state == STATE_INLINE) { # scanning for inline parameters
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# First line (state 1) needs to be a @parameter
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if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
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