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Re: Parsing CSV only returns the second line of the file

by philiprbrenan (Monk)
on Sep 01, 2012 at 11:33 UTC ( #991145=note: print w/replies, xml ) Need Help??

in reply to Parsing CSV only returns the second line of the file

Please consider building and manipulating the entire data structure in an array step by step, it makes it easier because you can see what you are doing with pp().

use feature ":5.14"; use warnings FATAL => qw(all); use strict; use Data::Dump qw(dump pp); use Text::CSV_XS; # So original data look something like: my @d = split /\n/, <<'END'; 1,6064.86,85391.25,593.75,13.25 2,6072.17,85392.95,593.79,13.29 3,6078.94,85393.05,593.76,13.26 4,6085.51,85392.22,593.77,13.27 END # I need to insert two lines at the top, two lines at the # bottom, switch columns 2 and 3 around and replace column 5 with colu +mn # 1.I'm using Text::CSV for parsing and also Lava GUI package. So part + of # the code that does parsing looks like this:D my ($t, @t) = (Text::CSV_XS->new); $t->parse($_) && push(@t, [($t->fields())[4,2,1,3,0]]) or die "Could n +ot parse: $_" for @d; # Parse and rearrange unshift @t, ["Top line 1"], ["Top line 2"]; # Top lines push @t, ["Bot line 1"], ["Bot line 2"]; # Bottom lines $t->combine(@$_) && ($_ = $t->string) or die "Cannot combine: ".dump( +$_) for @t; # Combine pp(\@t); # Print result


[ "\"Top line 1\"", "\"Top line 2\"", "13.25,85391.25,6064.86,593.75,1", "13.29,85392.95,6072.17,593.79,2", "13.26,85393.05,6078.94,593.76,3", "13.27,85392.22,6085.51,593.77,4", "\"Bot line 1\"", "\"Bot line 2\"", ]

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choroba still has one more.
[Corion]: I have Thursday and Friday off, so then I might get to converting the rough outlines to more articles ;)
[Corion]: But currently, most of the modules are web-related and I don't like to publish two web articles in a row
[Corion]: Maybe I should do the Filter::Simple release on the next weeked - this would give me one more article to milk from this theme

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