Generated: Sun Aug 21 11:10:56 2011 from fg_io_xml.pl 2011/04/15 8.7 KB.
#!/usr/bin/perl -w # NAME: fg_io_xml.pl # AIM: View the contents of a FlightGear IO XML file # 15/04/2011 geoff mclane http://geoffair.net/mperl use strict; use warnings; use File::Basename; # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] ) use Cwd; my $perl_dir = 'C:\GTools\perl'; unshift(@INC, $perl_dir); require 'logfile.pl' or die "Unable to load logfile.pl ...\n"; # log file stuff my ($LF); my $pgmname = $0; if ($pgmname =~ /(\\|\/)/) { my @tmpsp = split(/(\\|\/)/,$pgmname); $pgmname = $tmpsp[-1]; } my $outfile = $perl_dir."\\temp.$pgmname.txt"; open_log($outfile); # user variables my $pgm_version ="0.0.1 2011-04-15"; my $load_log = 0; my $in_file = ''; my $include_format = 0; my $include_name = 0; my $include_type = 0; my $include_factor = 0; my $include_offset = 0; my $debug_on = 1; my $def_file = 'C:\DTEMP\FG\ivao\17\cfg\squawk.xml'; ### program variables my @warnings = (); my $cwd = cwd(); my $os = $^O; sub show_warnings($) { my ($val) = @_; if (@warnings) { prt( "\nGot ".scalar @warnings." WARNINGS...\n" ); foreach my $itm (@warnings) { prt("$itm\n"); } prt("\n"); } else { #prt( "\nNo warnings issued.\n\n" ); } } sub pgm_exit($$) { my ($val,$msg) = @_; if (length($msg)) { $msg .= "\n" if (!($msg =~ /\n$/)); prt($msg); } show_warnings($val); close_log($outfile,$load_log); exit($val); } sub prtw($) { my ($tx) = shift; $tx =~ s/\n$//; prt("$tx\n"); push(@warnings,$tx); } sub process_in_file($) { my ($inf) = @_; if (! open INF, "<$inf") { pgm_exit(1,"ERROR: Unable to open file [$inf]\n"); } my @lines = <INF>; close INF; my $lncnt = scalar @lines; prt("Processing $lncnt lines, from [$inf]...\n"); my ($line,$inc,$lnn); my ($i,$len,$ch,$nc,$i2,$pc,$tag,$txt,$lasttag,$chunk,$dir,$tmp); my (@arr,$key,$val,$tmp2); $lnn = 0; $ch = ''; my $intag = 0; my $inchunk = 0; $tag = ''; $txt = ''; my @tagstack = (); my @chunks = (); $chunk = ''; $dir = ''; my %attrs = (); foreach $line (@lines) { chomp $line; $lnn++; $line = trim_all($line); $len = length($line); for ($i = 0; $i < $len; $i++) { $pc = $ch; $ch = substr($line,$i,1); $i2 = $i + 1; $nc = ($i2 < $len) ? substr($line,$i2,1) : ""; if ($intag) { if ($ch eq '>') { $tag .= $ch; $intag = 0; if ($tag =~ /^<\?/) { # header } elsif ($tag =~ /^<!--/) { # forget comments } elsif ($tag =~ /^<\//) { # close - time to store text $tag =~ s/^<\///; $tag =~ s/>$//; if (@tagstack) { $lasttag = pop @tagstack; } else { pgm_exit(1,"ERROR: $lnn: Closing tag [$tag], with NO open tag stack!\n"); } if ($tag eq $lasttag) { if ($tag eq 'chunk') { $inchunk = 0; if (length($chunk)) { $tmp = "$dir:"; @arr = sort keys(%attrs); if (@arr) { $tmp2 = ''; foreach $key (@arr) { $val = $attrs{$key}; if ($key eq 'format') { $tmp2 .= " $key=\"$val\"" if ($include_format); } elsif ($key eq 'name') { $tmp2 .= " $key=\"$val\"" if ($include_name); } elsif ($key eq 'type') { $tmp2 .= " $key=\"$val\"" if ($include_type); } elsif ($key eq 'factor') { $tmp2 .= " $key=\"$val\"" if ($include_factor); } elsif ($key eq 'offset') { $tmp2 .= " $key=\"$val\"" if ($include_offset); } else { $tmp2 .= " $key=\"$val\""; } } if (length($tmp2)) { $tmp .= $tmp2; prt("$tmp\n"); push(@chunks,$tmp); } } #$tmp = "$dir: $chunk"; #prt("$tmp\n"); } $chunk = ''; %attrs = (); # clear attributes } if (length($txt)) { #prt("$lnn: <$lasttag> [$txt] </$tag> = Close tag\n"); if ($inchunk) { $chunk .= "; " if (length($chunk)); $chunk .= "$tag=$txt"; $attrs{$tag} = $txt; } } else { #prt("$lnn: <$lasttag></$tag> = Close empty tag\n"); } } else { pgm_exit(1,"ERROR: TAG NOT EQUAL [$lasttag] vs [$tag]\n"); } } else { # open $tag =~ s/^<//; $tag =~ s/>$//; if (length($txt)) { prt("$lnn: Open tag = [$tag] with text [$txt]\n"); } else { #prt("$lnn: Open tag = [$tag] NT\n"); } push(@tagstack, $tag); if ($tag eq 'chunk') { $inchunk = 1; } elsif ($tag eq 'output') { $dir = $tag; } elsif ($tag eq 'input') { $dir = $tag; } } $tag = ''; $txt = ''; } else { $tag .= $ch; } } else { if ($ch eq '<') { $tag = $ch; $intag = 1; } else { $txt .= $ch; } } } } } ######################################### ### MAIN ### parse_args(@ARGV); prt( "$pgmname: in [$cwd]: Hello, World...\n" ); process_in_file($in_file); pgm_exit(0,"Normal exit(0)"); ######################################## sub give_help { prt("$pgmname: version $pgm_version\n"); prt("Usage: $pgmname [options] in-file\n"); prt("Options:\n"); prt(" --help (-h or -?) = This help, and exit 0.\n"); } sub need_arg { my ($arg,@av) = @_; pgm_exit(1,"ERROR: [$arg] must have following argument!\n") if (!@av); } sub parse_args { my (@av) = @_; my ($arg,$sarg); while (@av) { $arg = $av[0]; if ($arg =~ /^-/) { $sarg = substr($arg,1); $sarg = substr($sarg,1) while ($sarg =~ /^-/); if (($sarg =~ /^h/i)||($sarg eq '?')) { give_help(); pgm_exit(0,"Help exit(0)"); } else { pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n"); } } else { $in_file = $arg; prt("Set input to [$in_file]\n"); } shift @av; } if ((length($in_file) == 0) && $debug_on) { $in_file = $def_file; } if (length($in_file) == 0) { pgm_exit(1,"ERROR: No input files found in command!\n"); } if (! -f $in_file) { pgm_exit(1,"ERROR: Unable to find in file [$in_file]! Check name, location...\n"); } } # eof - template.pl