#/usr/bin/perl

die "\nUsage: perl RtestDTD.pl [FLAG] url_list.txt.

FLAGS:
  -v    = verify   ( would create rtest_html.veri )
  -b    = baseline ( would create rtest_html.base )
  -help = info. on running the script\n" 
if( @ARGV[0]!~/-help/ && ((@ARGV >2 || @ARGV < 2) || ($ARGV[0]!~m/-v/ && $ARGV[0]!~m/-b/)));

if($ARGV[0]=~m/-help/) {
 print  "
         1. \"url_list.txt\" can be generated by running UrlGen.pl
            Ex. perl UrlGen.pl.
         2. Run base line (-b) before making changes in your tree.
            This will generate rtest_html.base file [DO NOT CHANGE THIS].
         3. Run verification (-v) after making changes in your tree.
            This will generate rtest_html.veri file and will compare
            rtest_html.base and rtest_html.veri.

NOTE:  Need perl version 5.0 or greater. \n";
 exit(0);
}

use Cwd;

$ENV{"PARSER_DUMP_CONTENT"}=1;

($drive,@path)=split(/:/,`cd`);

system("$drive:\\mozilla\\dist\\win32_d.obj\\bin\\viewer.exe -f $ARGV[1]");

if($ARGV[0]=~m/-b/) {
  rename("rtest_html.txt","rtest_html.base");
}
elsif($ARGV[0]=~m/-v/) {
  rename("rtest_html.txt","rtest_html.veri");
  @result=CompareFiles("rtest_html.base","rtest_html.veri");
  Display(@result);
}

sub CompareFiles {

  open(BASE,"<$_[0]") || die "Can't output $_[0] $!";
  open(VERI,"<$_[1]") || die "Can't output $_[1] $!";

  #Separate file contents into URL and DOCUMENT

  while(<BASE>) {
   ($url,$document1)=split/;/;
   push(@url1,$url);
   push(@documents1,$document1);
  }
  while(<VERI>) {
   ($url,$document2)=split/;/;
   push(@url2,$url);
   push(@documents2,$document2);
  }

  #Search for documents that don't match

  for($i=0;$i<=$#documents1+1;$i++) {
   if($documents1[$i] !~ /$documents2[$i]/) {
    (@string1)=split(//,$documents1[$i]);
    (@string2)=split(//,$documents2[$i]);
    for($j=0;$j<=$#string1;$j++) {
     # Find the character that failed
     if($string1[$j] !~ /$string2[$j]/) {
       push(@result,$url1[$i],$string2[$j],$j);
       $j=@string1; # Stop looping
     }
    }
   }
  }
  close(BASE);
  close(VERI);

  return @result;
}


sub Display {
  for($i=0;$i<@_;$i++) {
   print "\n $_[$i++] failed on character '$_[$i++]' at location $_[$i]";
  }
  print "\n--------------------\n";
  $count=@_/3;
  if(($count)>0) {
    print "$count url(s) failed\n";
  }
  else {
    print "\nALL SUCCEEDED\n";
  }
}