305 lines
8.0 KiB
Perl
305 lines
8.0 KiB
Perl
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#! /usr/bin/perl -w
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#
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# Copyright 2000 Patrik Stridvall
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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#
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use strict;
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my $name0=$0;
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$name0 =~ s%^.*/%%;
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my $invert = 0;
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my $pattern;
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my @files = ();
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my $usage;
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while(defined($_ = shift)) {
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if (/^-v$/) {
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$invert = 1;
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} elsif (/^--?(\?|h|help)$/) {
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$usage=0;
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} elsif (/^-/) {
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print STDERR "$name0:error: unknown option '$_'\n";
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$usage=2;
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last;
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} elsif(!defined($pattern)) {
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$pattern = $_;
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} else {
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push @files, $_;
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}
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}
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if (defined $usage)
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{
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print "Usage: $name0 [--help] [-v] pattern files...\n";
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print "where:\n";
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print "--help Prints this help message\n";
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print "-v Return functions that do not match pattern\n";
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print "pattern A regular expression for the function name\n";
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print "files... A list of files to search the function in\n";
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exit $usage;
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}
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foreach my $file (@files) {
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open(IN, "< $file") || die "Error: Can't open $file: $!\n";
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my $level = 0;
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my $extern_c = 0;
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my $again = 0;
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my $lookahead = 0;
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while($again || defined(my $line = <IN>)) {
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if(!$again) {
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chomp $line;
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if($lookahead) {
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$lookahead = 0;
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$_ .= "\n" . $line;
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} else {
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$_ = $line;
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}
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} else {
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$again = 0;
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}
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# remove C comments
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if(s/^(|.*?[^\/])(\/\*.*?\*\/)(.*)$/$1 $3/s) {
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$again = 1;
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next;
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} elsif(/^(.*?)\/\*/s) {
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$lookahead = 1;
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next;
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}
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# remove C++ comments
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while(s/^(.*?)\/\/.*?$/$1\n/s) { $again = 1; }
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if($again) { next; }
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# remove empty rows
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if(/^\s*$/) { next; }
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# remove preprocessor directives
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if(s/^\s*\#/\#/m) {
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if(/^\#[.\n\r]*?\\$/m) {
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$lookahead = 1;
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next;
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} elsif(s/^\#\s*(.*?)(\s+(.*?))?\s*$//m) {
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next;
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}
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}
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# Remove extern "C"
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if(s/^\s*extern[\s\n]+"C"[\s\n]+\{//m) {
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$extern_c = 1;
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$again = 1;
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next;
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} elsif(m/^\s*extern[\s\n]+"C"/m) {
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$lookahead = 1;
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next;
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}
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if($level > 0)
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{
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my $line = "";
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while(/^[^\{\}]/) {
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s/^([^\{\}\'\"]*)//s;
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$line .= $1;
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if(s/^\'//) {
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$line .= "\'";
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while(/^./ && !s/^\'//) {
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s/^([^\'\\]*)//s;
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$line .= $1;
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if(s/^\\//) {
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$line .= "\\";
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if(s/^(.)//s) {
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$line .= $1;
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if($1 eq "0") {
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s/^(\d{0,3})//s;
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$line .= $1;
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}
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}
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}
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}
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$line .= "\'";
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} elsif(s/^\"//) {
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$line .= "\"";
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while(/^./ && !s/^\"//) {
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s/^([^\"\\]*)//s;
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$line .= $1;
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if(s/^\\//) {
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$line .= "\\";
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if(s/^(.)//s) {
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$line .= $1;
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if($1 eq "0") {
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s/^(\d{0,3})//s;
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$line .= $1;
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}
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}
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}
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}
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$line .= "\"";
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}
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}
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if(s/^\{//) {
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$_ = $'; $again = 1;
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$line .= "{";
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$level++;
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} elsif(s/^\}//) {
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$_ = $'; $again = 1;
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$line .= "}" if $level > 1;
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$level--;
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if($level == -1 && $extern_c) {
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$extern_c = 0;
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$level = 0;
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}
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}
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next;
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} elsif(/^class[^\}]*{/) {
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$_ = $'; $again = 1;
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$level++;
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next;
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} elsif(/^class[^\}]*$/) {
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$lookahead = 1;
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next;
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} elsif(/^typedef[^\}]*;/) {
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next;
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} elsif(/(extern\s+|static\s+)?
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(?:__inline__\s+|__inline\s+|inline\s+)?
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((struct\s+|union\s+|enum\s+)?(?:\w+(?:\:\:(?:\s*operator\s*[^\)\s]+)?)?)+((\s*(?:\*|\&))+\s*|\s+))
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((__cdecl|__stdcall|CDECL|VFWAPIV|VFWAPI|WINAPIV|WINAPI|CALLBACK)\s+)?
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((?:\w+(?:\:\:)?)+(\(\w+\))?)\s*\(([^\)]*)\)\s*
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(?:\w+(?:\s*\([^\)]*\))?\s*)*\s*
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(\{|\;)/sx)
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{
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$_ = $'; $again = 1;
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if($11 eq "{") {
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$level++;
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}
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my $linkage = $1;
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my $return_type = $2;
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my $calling_convention = $7;
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my $name = $8;
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my $arguments = $10;
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if(!defined($linkage)) {
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$linkage = "";
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}
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if(!defined($calling_convention)) {
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$calling_convention = "";
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}
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$linkage =~ s/\s*$//;
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$return_type =~ s/\s*$//;
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$return_type =~ s/\s*\*\s*/*/g;
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$return_type =~ s/(\*+)/ $1/g;
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$arguments =~ y/\t\n/ /;
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$arguments =~ s/^\s*(.*?)\s*$/$1/;
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if($arguments eq "") { $arguments = "void" }
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my @argument_types;
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my @argument_names;
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my @arguments = split(/,/, $arguments);
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foreach my $n (0..$#arguments) {
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my $argument_type = "";
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my $argument_name = "";
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my $argument = $arguments[$n];
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$argument =~ s/^\s*(.*?)\s*$/$1/;
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# print " " . ($n + 1) . ": '$argument'\n";
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$argument =~ s/^(IN OUT(?=\s)|IN(?=\s)|OUT(?=\s)|\s*)\s*//;
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$argument =~ s/^(const(?=\s)|CONST(?=\s)|__const(?=\s)|__restrict(?=\s)|\s*)\s*//;
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if($argument =~ /^\.\.\.$/) {
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$argument_type = "...";
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$argument_name = "...";
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} elsif($argument =~ /^
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((?:struct\s+|union\s+|enum\s+|(?:signed\s+|unsigned\s+)
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(?:short\s+(?=int)|long\s+(?=int))?)?(?:\w+(?:\:\:)?)+)\s*
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((?:const(?=\s)|CONST(?=\s)|__const(?=\s)|__restrict(?=\s))?\s*(?:\*\s*?)*)\s*
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(?:const(?=\s)|CONST(?=\s)|__const(?=\s)|__restrict(?=\s))?\s*
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(\w*)\s*
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(?:\[\]|\s+OPTIONAL)?/x)
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{
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$argument_type = "$1";
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if($2 ne "") {
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$argument_type .= " $2";
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}
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$argument_name = $3;
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$argument_type =~ s/\s*const\s*/ /;
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$argument_type =~ s/^\s*(.*?)\s*$/$1/;
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$argument_name =~ s/^\s*(.*?)\s*$/$1/;
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} else {
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die "$file: $.: syntax error: '$argument'\n";
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}
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$argument_types[$n] = $argument_type;
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$argument_names[$n] = $argument_name;
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# print " " . ($n + 1) . ": '$argument_type': '$argument_name'\n";
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}
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if($#argument_types == 0 && $argument_types[0] =~ /^void$/i) {
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$#argument_types = -1;
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$#argument_names = -1;
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}
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@arguments = ();
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foreach my $n (0..$#argument_types) {
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if($argument_names[$n] && $argument_names[$n] ne "...") {
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if($argument_types[$n] !~ /\*$/) {
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$arguments[$n] = $argument_types[$n] . " " . $argument_names[$n];
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} else {
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$arguments[$n] = $argument_types[$n] . $argument_names[$n];
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}
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} else {
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$arguments[$n] = $argument_types[$n];
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}
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}
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$arguments = join(", ", @arguments);
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if(!$arguments) { $arguments = "void"; }
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if((!$invert && $name =~ /$pattern/) || ($invert && $name !~ /$pattern/)) {
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if($calling_convention) {
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print "$return_type $calling_convention $name($arguments)\n";
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} else {
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if($return_type =~ /\*$/) {
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print "$return_type$name($arguments)\n";
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} else {
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print "$return_type $name($arguments)\n";
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}
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}
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}
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} elsif(/\'(?:[^\\\']*|\\.)*\'/s) {
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$_ = $'; $again = 1;
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} elsif(/\"(?:[^\\\"]*|\\.)*\"/s) {
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$_ = $'; $again = 1;
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} elsif(/;/s) {
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$_ = $'; $again = 1;
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} elsif(/extern\s+"C"\s+{/s) {
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$_ = $'; $again = 1;
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} elsif(/\{/s) {
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$_ = $'; $again = 1;
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$level++;
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} else {
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$lookahead = 1;
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}
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}
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close(IN);
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}
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