260 lines
6.2 KiB
Perl
260 lines
6.2 KiB
Perl
#!/usr/bin/env perl
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#
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# su-filter.pl
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#
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use strict;
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my $in_su = 0;
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my $indent = 0;
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my $out;
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my $braces = 0;
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my $arrcnt;
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my $data;
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my $tststr;
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my $incomm = 0;
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while(<>) {
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$tststr = $_;
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$incomm++ while $tststr =~ /\/\*/g;
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$incomm-- while $tststr =~ /\*\//g;
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if($in_su == 1) {
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if(/}(.*);/) {
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$out .= $_;
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do_output($out);
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$in_su = 0;
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} elsif(/^ *\} [^\s]+(\[\d*\])* = \{/) {
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$tststr = $1;
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$arrcnt = 0;
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$arrcnt++ while $tststr =~ /\[/g;
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$in_su++;
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$braces = 1;
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/^(.* = \{)(.*)$/;
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$data = $2;
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$out .= $1."\n";
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} else {
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$out .= $_;
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}
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} elsif($in_su == 2) {
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$data .= $_;
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if(/};$/) {
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#$data = "\n$data";
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$data =~ s/\n */\n/g;
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$data =~ s/};\n?//s;
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my @strucdata = structureData($data);
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$out .= displayData($indent, 0, \@strucdata);
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$out .= "\n$indent};\n";
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do_output($out);
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$in_su = 0;
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}
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} elsif($incomm <= 0 && /( *)(static )?(const )?(union|struct) ([a-zA-Z_\$][\$0-9a-zA-Z_]+ )?\{/) {
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$in_su = 1;
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$indent = $1;
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$out = $_;
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next;
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} else {
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do_output($_);
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}
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}
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sub structureData {
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my $data = $_[0];
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my @datalist = split(/(\{|\}|,|"|#|\n|\/\*|\*\/|\(|\))/, $data);
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my $item;
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my $dataitem = "";
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my @struclist = ();
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my $substruc;
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my $inquote = 0;
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my $inbrace = 0;
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my $preproc = 0;
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my $comment = 0;
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my $inparen = 0;
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foreach $item (@datalist) {
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if($comment) {
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if($item eq "*/") {
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$comment = 0;
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$dataitem .= "*/";
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push @struclist, $dataitem;
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$dataitem = "";
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next;
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}
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$dataitem .= $item;
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next;
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}
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if($inquote) {
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$dataitem .= $item;
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if($item eq "\"") {
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$inquote--;
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}
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next;
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}
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if($preproc) {
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if($item eq "\n") {
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$preproc = 0;
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push @struclist, $dataitem;
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$dataitem = "";
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next;
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}
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$dataitem .= $item;
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next;
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}
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if($inbrace) {
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if($item eq "}") {
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$inbrace --;
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if(!$inbrace) {
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$substruc = structureData($dataitem);
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$dataitem = $substruc;
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next;
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}
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} elsif($item eq "{") {
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$inbrace++;
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} elsif ($item eq "\"") {
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$inquote++;
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}
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$dataitem .= $item;
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next;
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}
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if($inparen) {
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if($item eq ")") {
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$inparen--;
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}
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$dataitem .= $item;
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next;
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}
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if($item eq "\n") {
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next;
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}
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if($item eq "#") {
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$preproc = 1;
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push @struclist, $dataitem;
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$dataitem = "#";
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next;
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}
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if($item eq "/*") {
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$comment = 1;
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push @struclist, $dataitem;
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$dataitem= "/*";
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next;
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}
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if($item eq "\"") {
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$dataitem .= $item;
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$inquote++;
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next;
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}
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if($item eq "{") {
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$inbrace++;
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next;
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}
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if($item eq ",") {
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push @struclist, $dataitem;
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$dataitem = "";
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next;
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}
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if($item eq "(") {
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$dataitem .= $item;
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$inparen++;
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next;
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}
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if($item =~ /^\s*$/) {
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next;
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}
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if(ref $dataitem eq 'ARRAY') {
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push @struclist, $dataitem;
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$dataitem = "";
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}
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$dataitem .= $item;
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}
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push @struclist, $dataitem;
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return \@struclist;
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}
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sub displayData {
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my $indent = shift;
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my $depth = shift;
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my $data = shift;
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my $item;
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my $out = "";
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my $currline = "";
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my $first = 1;
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my $prevpreproc = 0;
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my $prevcomment = 0;
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foreach $item (@{$data}) {
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if($item =~ /^\/\*/) {
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#Comment
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$item =~ s/\n/\n$indent/g;
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if($out =~ /\n\s*$/s) {
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$out .= $item."\n".$indent;
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} else {
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$out .= "\n".$indent.$item."\n".$indent;
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}
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$currline = $indent;
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$prevcomment = 1;
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next;
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}
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$item =~ s/^\s+//;
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if($item =~ /^#/) {
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#Pre-processor directive
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if($out =~ /\n\s*$/s) {
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$out =~ s/\n\s*$/\n/;
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$out .= $item."\n".$indent;
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} else {
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$out .= "\n".$item."\n".$indent;
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}
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$currline = $indent;
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$prevpreproc = 1;
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next;
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}
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if($first) {
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$first = 0;
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if($depth != 0) {
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$out .= $indent;
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$currline = $indent;
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}
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} else {
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if(!$prevpreproc && !$prevcomment) {
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$out .= ", ";
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$currline .= ", ";
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if($depth == 1) {
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$out .= "\n";
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$currline = "";
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}
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if($depth == 1) {
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$out .= $indent;
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$currline .= $indent;
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}
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}
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}
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$prevpreproc = 0;
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$prevcomment = 0;
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if (ref $item eq 'ARRAY') {
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if($depth == 0) {
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$out .= displayData("$indent ", $depth+1, $item);
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} else {
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$out .= "{\n".displayData("$indent ", $depth+1, $item)."\n".$indent."}";
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$currline = $indent."}";
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}
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} else {
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if(length $currline.$item > 79) {
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$currline = $indent;
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$out .= "\n$indent";
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}
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$out .= $item;
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$currline .= $item;
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}
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}
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return $out;
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}
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sub do_output {
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my $out = shift;
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# Strip any trailing whitespace
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$out =~ s/\s+\n/\n/g;
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print $out;
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}
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