I wrote some code today to solve a co-worker's problem. Apparently a client was concatenating a series of XML files into one big file to send via email (or some other numbskull reason) & then needed them split up afterwards for processing.

Here's what I came up with. Being that TIMTOWTDI, which would be the Better/Stronger/Faster/SHORTEST possible way to accomplish the same thing: 

use strict;
my @input_file = <>;
my @temp;
my $filecount = 0;
my $filename_prefix = "outfile_";
my $file_is_open = 0;
my $out_name;

foreach my $in (@input_file) {
  if ($in =~ m/^<\?xml version/) {

      if ($file_is_open) {
        close(OF) or die "Couldn't close $out_name!!\n";
        $file_is_open = 0;
      }
      ++$filecount;
      $out_name = $filename_prefix.$filecount.".xml";
      open(OF,"> $out_name") or die "Couldnt open $out_name for writin
+g!!\n";
      print(STDOUT "Writing to $out_name.\n");
      $file_is_open = 1;
  }
  if ($file_is_open) {
      print(OF $in);
  }
}
close(OF);

[download]

My first thought was to use the command flag to put perl into looping mode, but I haven't gone there yet... Any other brilliant ideas? I find I learn more quickly when other people try to tackle the same problem as I & we can share insights.



Wait! This isn't a Parachute, this is a Backpack!

In reply to XML File Slicing Golf(ish) by gregor42

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