Re: Checking for single digit

[vladb]

in reply to Checking for single digit

In your match try to use the special regexp anchors ^ and $:

  if ($input =~ /^[0-9]$/) {
    print "input was a single digit number\n";
  } else {
    print "input wasn't a single digit number\n";
  }

From the Perl regular expression tutorial (perlre), the "^" and "$" are defined as:

^   Match the beginning of the line
$   Match the end of the line (or before newline at the end)

Unless they are used, Perl will look for a match anywhere within your $input string! ;-)

Update: threw in some perldoc definitions for your viewing pleasure :)

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