333 lines
6.7 KiB
Perl
333 lines
6.7 KiB
Perl
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#!/usr/bin/perl
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use strict;
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use Text::Tabs;
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my $debug = 0;
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while ($ARGV[0] =~ m/^-(.*)/) {
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my $cmd = shift @ARGV;
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if ($cmd eq "--debug") {
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require Data::Dumper;
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$debug = 1;
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next;
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}
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die "argument $cmd unknown";
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}
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if (scalar @ARGV < 2 || scalar @ARGV > 3) {
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die "Usage:\n\t$0 <file in> <file out> [<exceptions file>]\n";
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}
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my ($file_in, $file_out, $file_exceptions) = @ARGV;
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my $data;
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my %ioctls;
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my %defines;
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my %typedefs;
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my %enums;
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my %enum_symbols;
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my %structs;
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#
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# read the file and get identifiers
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#
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my $is_enum = 0;
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my $is_comment = 0;
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open IN, $file_in or die "Can't open $file_in";
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while (<IN>) {
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$data .= $_;
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my $ln = $_;
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if (!$is_comment) {
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$ln =~ s,/\*.*(\*/),,g;
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$is_comment = 1 if ($ln =~ s,/\*.*,,);
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} else {
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if ($ln =~ s,^(.*\*/),,) {
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$is_comment = 0;
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} else {
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next;
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}
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}
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if ($is_enum && $ln =~ m/^\s*([_\w][\w\d_]+)\s*[\,=]?/) {
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my $s = $1;
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my $n = $1;
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$n =~ tr/A-Z/a-z/;
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$n =~ tr/_/-/;
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$enum_symbols{$s} = "\\ :ref:`$s <$n>`\\ ";
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$is_enum = 0 if ($is_enum && m/\}/);
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next;
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}
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$is_enum = 0 if ($is_enum && m/\}/);
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if ($ln =~ m/^\s*#\s*define\s+([_\w][\w\d_]+)\s+_IO/) {
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my $s = $1;
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my $n = $1;
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$n =~ tr/A-Z/a-z/;
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$ioctls{$s} = "\\ :ref:`$s <$n>`\\ ";
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next;
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}
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if ($ln =~ m/^\s*#\s*define\s+([_\w][\w\d_]+)\s+/) {
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my $s = $1;
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my $n = $1;
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$n =~ tr/A-Z/a-z/;
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$n =~ tr/_/-/;
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$defines{$s} = "\\ :ref:`$s <$n>`\\ ";
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next;
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}
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if ($ln =~ m/^\s*typedef\s+([_\w][\w\d_]+)\s+(.*)\s+([_\w][\w\d_]+);/) {
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my $s = $2;
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my $n = $3;
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$typedefs{$n} = "\\ :c:type:`$n <$s>`\\ ";
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next;
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}
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if ($ln =~ m/^\s*enum\s+([_\w][\w\d_]+)\s+\{/
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|| $ln =~ m/^\s*enum\s+([_\w][\w\d_]+)$/
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|| $ln =~ m/^\s*typedef\s*enum\s+([_\w][\w\d_]+)\s+\{/
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|| $ln =~ m/^\s*typedef\s*enum\s+([_\w][\w\d_]+)$/) {
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my $s = $1;
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$enums{$s} = "enum :c:type:`$s`\\ ";
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$is_enum = $1;
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next;
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}
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if ($ln =~ m/^\s*struct\s+([_\w][\w\d_]+)\s+\{/
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|| $ln =~ m/^\s*struct\s+([[_\w][\w\d_]+)$/
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|| $ln =~ m/^\s*typedef\s*struct\s+([_\w][\w\d_]+)\s+\{/
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|| $ln =~ m/^\s*typedef\s*struct\s+([[_\w][\w\d_]+)$/
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) {
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my $s = $1;
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$structs{$s} = "struct :c:type:`$s`\\ ";
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next;
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}
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}
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close IN;
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#
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# Handle multi-line typedefs
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#
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my @matches = ($data =~ m/typedef\s+struct\s+\S+?\s*\{[^\}]+\}\s*(\S+)\s*\;/g,
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$data =~ m/typedef\s+enum\s+\S+?\s*\{[^\}]+\}\s*(\S+)\s*\;/g,);
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foreach my $m (@matches) {
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my $s = $m;
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$typedefs{$s} = "\\ :c:type:`$s`\\ ";
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next;
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}
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#
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# Handle exceptions, if any
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#
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my %def_reftype = (
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"ioctl" => ":ref",
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"define" => ":ref",
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"symbol" => ":ref",
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"typedef" => ":c:type",
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"enum" => ":c:type",
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"struct" => ":c:type",
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);
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if ($file_exceptions) {
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open IN, $file_exceptions or die "Can't read $file_exceptions";
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while (<IN>) {
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next if (m/^\s*$/ || m/^\s*#/);
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# Parsers to ignore a symbol
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if (m/^ignore\s+ioctl\s+(\S+)/) {
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delete $ioctls{$1} if (exists($ioctls{$1}));
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next;
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}
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if (m/^ignore\s+define\s+(\S+)/) {
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delete $defines{$1} if (exists($defines{$1}));
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next;
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}
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if (m/^ignore\s+typedef\s+(\S+)/) {
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delete $typedefs{$1} if (exists($typedefs{$1}));
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next;
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}
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if (m/^ignore\s+enum\s+(\S+)/) {
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delete $enums{$1} if (exists($enums{$1}));
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next;
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}
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if (m/^ignore\s+struct\s+(\S+)/) {
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delete $structs{$1} if (exists($structs{$1}));
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next;
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}
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if (m/^ignore\s+symbol\s+(\S+)/) {
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delete $enum_symbols{$1} if (exists($enum_symbols{$1}));
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next;
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}
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# Parsers to replace a symbol
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my ($type, $old, $new, $reftype);
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if (m/^replace\s+(\S+)\s+(\S+)\s+(\S+)/) {
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$type = $1;
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$old = $2;
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$new = $3;
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} else {
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die "Can't parse $file_exceptions: $_";
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}
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if ($new =~ m/^\:c\:(data|func|macro|type)\:\`(.+)\`/) {
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$reftype = ":c:$1";
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$new = $2;
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} elsif ($new =~ m/\:ref\:\`(.+)\`/) {
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$reftype = ":ref";
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$new = $1;
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} else {
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$reftype = $def_reftype{$type};
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}
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$new = "$reftype:`$old <$new>`";
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if ($type eq "ioctl") {
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$ioctls{$old} = $new if (exists($ioctls{$old}));
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next;
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}
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if ($type eq "define") {
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$defines{$old} = $new if (exists($defines{$old}));
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next;
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}
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if ($type eq "symbol") {
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$enum_symbols{$old} = $new if (exists($enum_symbols{$old}));
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next;
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}
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if ($type eq "typedef") {
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$typedefs{$old} = $new if (exists($typedefs{$old}));
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next;
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}
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if ($type eq "enum") {
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$enums{$old} = $new if (exists($enums{$old}));
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next;
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}
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if ($type eq "struct") {
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$structs{$old} = $new if (exists($structs{$old}));
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next;
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}
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die "Can't parse $file_exceptions: $_";
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}
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}
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if ($debug) {
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print Data::Dumper->Dump([\%ioctls], [qw(*ioctls)]) if (%ioctls);
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print Data::Dumper->Dump([\%typedefs], [qw(*typedefs)]) if (%typedefs);
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print Data::Dumper->Dump([\%enums], [qw(*enums)]) if (%enums);
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print Data::Dumper->Dump([\%structs], [qw(*structs)]) if (%structs);
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print Data::Dumper->Dump([\%defines], [qw(*defines)]) if (%defines);
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print Data::Dumper->Dump([\%enum_symbols], [qw(*enum_symbols)]) if (%enum_symbols);
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}
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#
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# Align block
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#
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$data = expand($data);
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$data = " " . $data;
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$data =~ s/\n/\n /g;
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$data =~ s/\n\s+$/\n/g;
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$data =~ s/\n\s+\n/\n\n/g;
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#
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# Add escape codes for special characters
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#
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$data =~ s,([\_\`\*\<\>\&\\\\:\/\|\%\$\#\{\}\~\^]),\\$1,g;
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$data =~ s,DEPRECATED,**DEPRECATED**,g;
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#
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# Add references
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#
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my $start_delim = "[ \n\t\(\=\*\@]";
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my $end_delim = "(\\s|,|\\\\=|\\\\:|\\;|\\\)|\\}|\\{)";
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foreach my $r (keys %ioctls) {
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my $s = $ioctls{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/($start_delim)($r)$end_delim/$1$s$3/g;
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}
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foreach my $r (keys %defines) {
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my $s = $defines{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/($start_delim)($r)$end_delim/$1$s$3/g;
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}
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foreach my $r (keys %enum_symbols) {
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my $s = $enum_symbols{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/($start_delim)($r)$end_delim/$1$s$3/g;
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}
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foreach my $r (keys %enums) {
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my $s = $enums{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/enum\s+($r)$end_delim/$s$2/g;
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}
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foreach my $r (keys %structs) {
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my $s = $structs{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/struct\s+($r)$end_delim/$s$2/g;
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}
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foreach my $r (keys %typedefs) {
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my $s = $typedefs{$r};
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$r =~ s,([\_\`\*\<\>\&\\\\:\/]),\\\\$1,g;
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print "$r -> $s\n" if ($debug);
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$data =~ s/($start_delim)($r)$end_delim/$1$s$3/g;
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}
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$data =~ s/\\ ([\n\s])/\1/g;
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#
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# Generate output file
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#
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my $title = $file_in;
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$title =~ s,.*/,,;
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open OUT, "> $file_out" or die "Can't open $file_out";
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print OUT ".. -*- coding: utf-8; mode: rst -*-\n\n";
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print OUT "$title\n";
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print OUT "=" x length($title);
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print OUT "\n\n.. parsed-literal::\n\n";
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print OUT $data;
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close OUT;
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