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Re^2: Parse .csv file from FTP using Perl

by Sherlock Perl (Novice)
on Jun 21, 2012 at 00:39 UTC ( #977516=note: print w/ replies, xml ) Need Help??


in reply to Re: Parse .csv file from FTP using Perl
in thread Parse .csv file from FTP using Perl

Thank you for the quick reply. Could you please direct me to some place where I can read how to parse the csv. The idea is that the file I am reaching to has 2 rows and I want to find the value in the 2nd row that corresponds to a specific value (assume "xyz") in the first row? How exactly should I go about doing this and storing the value from the 2nd row? Thank you in advance!


Comment on Re^2: Parse .csv file from FTP using Perl
Re^3: Parse .csv file from FTP using Perl
by muba (Priest) on Jun 21, 2012 at 00:48 UTC

    Text::CSV will help you do that. I would hack together a little something for you, but uhm, you also need to know which field (or column, or whatever the CSV terminology for that is) the value appears in, am I right? Otherwise you're just saying something like, "search me a thing that is similar to the thing that grows on the tree!" Yeah, okay, but what sort of thing on what tree? Are we talking branches here? Apples? Pears? Leafs?

      Yes I perfectly understand your logic. I have two rows in the .csv file and lets say the .csv looks like this: A1 = a B1 = b C1 = c .... etc etc A2 = 1 B2 = 2 C2 = 3 .... etc etc. So I want to find the value in Row 2 (A2, B2, C2,...) that corresponds to lets say value "c" in Row1. It is basically like HLOOKUP function in excel. I am not sure if I am clear enough in explaining what I want to do?

        So the CSV file would look like this?

        a,b,c 1,2,3

        How does any of the fields in line 2 correspond to any of the fields in line 1? I'm afraid I don't follow :)

        Edit: Wait, I think I get it now. What you want is a way to tell Perl, "hey, listen. What is the number of the field in the first line that has the value 'c'? Got that? Okay, now give me the value of the field with that number in the second line." Is that what you mean? There are actually several approaches, and I'm coming up with something momentarily. Hold on.

        Edit-edit: Yes, got it now. Okay, gimme a couple minutes.

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