in reply to parsing and evaluating a string

What is the correct sum of the following characters? 

   {   123
   k   107
   p   112
   *    42
+
-----
 ???

They don't really add in a numeric sense.

What is the bigger picture here? What are you trying to accomplish?

At least the parsing part shouldn't be too difficult: 

my $string = "char(123)+char(107)+char(112)+char(42)";
my @characters = map{ chr $_ } $string =~ m/(\d+)/g;
print "$_\n" foreach @characters;

[download]

Dave

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Re^2: parsing and evaluating a string
by bfdi533 (Friar) on Apr 24, 2006 at 12:52 UTC

    Sorry, should have been a bit more clear. The '+' is a concat operator not a sum operator.

[reply]

      Maybe this then: 

      use strict;
use warnings;
my $input = "char(123)+char(107)+char(112)+char(42)";
my $output .= chr( $_ ) foreach $input =~ m/(\d+)/g;
print "$output\n";

      [download]

      Dave

[reply]
[d/l]

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