I want to read in a text file, and make a search n replace with each item that matches the pattern, and is also a member of the hash I'm checking. The way I'm doing it here can be dangerous because I can't guarantee that it'll match the particular expression each time (or worse, it may go into infinite regression (e.g. replace a with ab)), so what I was thinking about doing was storing it into a list (tokening by whitespace probably) and this would give me the ability to manipulate each token separately.

But if I do such a thing, how can I re-create the original file, since I don't have easy access to the delimiters once the list is created.

Note: The delimiting characters may include more than just whitespace. Thanx! 
open (fp,$ARGV[0]) || die ("Can't open $ARGV[0]! Exiting.");
while (<fp>)
{
  if (!m/^\s*\/\//) #Ignore commented lines
  {
    s/\/\/.*//g;
    while (m/([A-Za-z0-9_\.\:]+)/g)
    {
      if (exists $my_replacement{$1})
      {
        s/$1/$my_replacement{$1}/;
      }
    }
  }
  print $_;
}

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Desert coder

In reply to Read In A File, Manipulate It, Spit It Back Out by JojoLinkyBob

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