This script will do what you want,
provided that your file is not too big
for your memory.
#!/usr/bin/perl -w
use strict;
my $start_flag = '<REANALYZED>';
my $stop_flag = '</REANALYZED>';
my $replacement = <<'REPL';
"z:\path\newfilename1.ext" GL
"z:\path\newfilename2.ext" GL
"z:\path\newfilename3.ext" GL
"z:\path\newfilename4.ext" GL
"z:\path\newfilename5.ext" GL
"z:\path\newfilename6.ext" GL
REPL
open ORIGINAL, "< original.txt"
or die "can't open original file\n";
my $original;
{
local $/;
$original = <ORIGINAL>;
}
close ORIGINAL;
$original =~ s/
$start_flag
.*?
(\s*)
$stop_flag
\n
/$start_flag\n$replacement$1$stop_flag/gsx;
open COPY, "> copy.txt"
or die "can't write to copy\n";
print COPY $original;
close COPY;
HTH
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