Re: Perl Module for identifying country name

[TomDLux]

in reply to Perl Module for identifying country name

You can search for any group of strings you wish to. The problem is, what are the possible values. Will it be the English name or the German on: Germany or Deutchland? Will it be the current name or an older one: Myamar or Burma? Sri Lanka or Ceylon? Mumbai or Bombay?

If you have a file with one value per line, you can use "grep -f countries datafile" to examine datafile for all the countries in the countries file. The perl equivalent is simple:

• read in the set of countries into an array
• form into a regular expression which will capture the found string:

  my $re_text = join '|', map {($_)} @countries;
  my $re = rx/$re_text/;
  

• and then test each input line against the re:

  while ( my $line = <$fh>) {
      chomp $line;
      my $found = ($line =~ /$re/);
      # Profit!
  }
  

[CountZero]

What use is the map {($_)} in your regex-making code? You will create a great many "captures" which are unnecessary.