Given the datastructure 
my @fields = (
  [ name1 => { start =>  0, len=> 10 } ], 
  [ name2 => { start =>  8, len=>  3 } ],
  [ name3 => { start => 11, len=> 14 } ],
);

[download]
that describes the fields of a fixed length textfile, write a program that constructs a string that can be fed into unpack to get the values out of a line of data.

I'm currently working on my own implementation. But I know someone will beat me. :=)


holli, /regexed monk/

In reply to Challenge: Construct an unpack string by holli

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