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#!/usr/bin/perl
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# Written by Mattias Runge 2008
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use XML::Twig;
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use Getopt::Long;
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$binaryname = "makeCanId.pl";
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if (@ARGV > 0)
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{
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    GetOptions( "xmlfile=s"     => \$xmlfile,
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            "cfile=s"   => \$cfile);
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}
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else
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{
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    $help = 1;
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}
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if ($help)
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{
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    print "Usage ./$binaryname [options]\n";
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    print "Options:\n";
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    print "  -x <xmlfile>           Choose xmlfile to parse\n";
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    print "  -c <headerfile>        Choose header file to write\n";
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    print "  -h                 Shows this usage\n";
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    print "\n";
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    print "example: ./$binaryname -x data.xml -c moduleid.h\n";
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    exit 0;
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}
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my $now = localtime time;
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my $twig = XML::Twig->new();
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$twig->parsefile($xmlfile);
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my $root = $twig->root;
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open (MYFILE, '>' . $cfile);
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print MYFILE "// Built on $now by $binaryname\n";
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print MYFILE "// DO NOT CHANGE MANUALLY\n\n";
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print MYFILE "#ifndef MODULEID_H_\n";
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print MYFILE "#define MODULEID_H_\n\n";
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print MYFILE "//------------------ //\n";
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print MYFILE "// Class definitions //\n";
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print MYFILE "//------------------ //\n";
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print MYFILE "\n";
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foreach my $class ($root->first_child('classes')->children('class'))
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{
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    my $className = $class->att('name');
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    $className =~ tr/a-z/A-Z/;
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    print MYFILE "#define CAN_MODULE_CLASS_$className " . $class->att('id') . "\n";
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}
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print MYFILE "\n";
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print MYFILE "//-------------------- //\n";
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print MYFILE "// Command definitions //\n";
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print MYFILE "//-------------------- //\n";
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print MYFILE "\n";
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foreach my $command ($root->first_child('commands')->children('command'))
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{
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    my $commandName = $command->att('name');
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    $commandName =~ tr/a-z/A-Z/;
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    my $commandType = $command->att('type');
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    $commandType =~ tr/a-z/A-Z/;
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    if ($commandType eq "SPECIFIC")
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    {
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        $commandType = $command->att('module');
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        $commandType =~ tr/a-z/A-Z/;
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    }
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    print MYFILE "#define CAN_MODULE_CMD_" . $commandType . "_" . $commandName . " " . $command->att('id') . "\n";
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}
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print MYFILE "\n";
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print MYFILE "//------------------- //\n";
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print MYFILE "// Module definitions //\n";
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print MYFILE "//------------------- //\n";
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print MYFILE "\n";
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foreach my $module ($root->first_child('modules')->children('module'))
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{
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    my $className = $module->att('class');
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    $className =~ tr/a-z/A-Z/;
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    my $moduleName = $module->att('name');
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    $moduleName =~ tr/a-z/A-Z/;
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    print MYFILE "#define CAN_MODULE_TYPE_" . $className . "_" . $moduleName . " " . $module->att('id') . "\n";
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}
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print MYFILE "\n";
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print MYFILE "//----------------- //\n";
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print MYFILE "// Misc definitions //\n";
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print MYFILE "//----------------- //\n";
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print MYFILE "\n";
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foreach my $define ($root->first_child('defines')->children('define'))
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{
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    my $groupName = $define->att('group');
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    $groupName =~ tr/a-z/A-Z/;
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    my $defineName = $define->att('name');
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    $defineName =~ tr/a-z/A-Z/;
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    print MYFILE "#define " . $groupName . "_" . $defineName . " " . $define->att('id') . "\n";
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}
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print MYFILE "\n";
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print MYFILE "#endif /*MODULEID_H_*/\n";
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close (MYFILE);
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print "Successfully wrote " . $cfile . "\n";