Let me write a hypothetical question for you that may or may not be what you were trying to ask:

Most wise monks, I am very new to Perl but have been given a large data file to read that was generated by an old Fortran program. The data are in pairs of lines with a header line and a data line like this:

000    NP          U          Pu
001    1.270000    000001     3.141000
002    Lev         N          Pu
003    0.13        000001     3.277118
004    NP          U          Pu
005    1.000220    000002     3.098761
006    Yac         S          Yb
007    10.33000    000001     90000000

[download]

I need to extract the NP U P lines of data. I have worked out how to read the file. But I can't figure out how to find the data. My code so far looks like this:

open I,"data.dat";
for($I=0;$I<1000;++$I)
{
$l1=<I>;
chop $L1;
$L2=<I>;
chop $L2;
#find the data here
printf ("%d, %d, %d\n", $N1, $N2, $n3);
}

[download]

Can someone help me with the code I need to replace the comment please?

Perl is Huffman encoded by design.

In reply to Re: regex help! by GrandFather
in thread regex help! by igotlongestname

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