Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re^12: Processing CSV File

by Kenosis (Priest)
on Oct 05, 2012 at 05:39 UTC ( #997387=note: print w/ replies, xml ) Need Help??


in reply to Re^11: Processing CSV File
in thread Processing CSV File

OK... Instead of installing Text::CSV, you can download CSV.pm into the same directory as create-configs.pl. Here's the updated script that requires CSV.pm to parse the csv files:

#!/usr/bin/perl # use strict; use warnings; require 'CSV.pm'; $ARGV[0] or die "Usage: $0 <filename> [<filename>] ..."; my ( $template_file_name, $templateText, %hash ) = ''; my $csv = Text::CSV->new( { binary => 1, eol => $/ } ) or die "Cannot use CSV: " . Text::CSV->error_diag(); for my $csvFile (@ARGV) { print "\nProcesing file $csvFile ...\n"; open my $csvfh, '<', $csvFile or die "Unable to open $csvFile: $!" +; # Ignore column names in first line my $columnNames = $csv->getline($csvfh); # Get vars from second line my @vars = @{ $csv->getline($csvfh) }; # Process each csv line while ( my $row = $csv->getline($csvfh) ) { my $templateFN = pop @$row; if ( $template_file_name ne $templateFN ) { $template_file_name = $templateFN; undef $templateText; } # keys: fields from second line; values: fields from csv line @hash{@vars} = @$row; $templateText //= getTemplateText($template_file_name); my $templateTextCopy = $templateText; $templateTextCopy =~ s/$_/$hash{$_}/g for keys %hash; my $ofile_name = $hash{'##rtrname##'} . '.txt'; print "Writing to file: $ofile_name\n"; open my $fh, '>', $ofile_name or die "$ofile_name: $!"; print $fh $templateTextCopy; close $fh; } close $csvfh; } print "\nDone!\n"; sub getTemplateText { my ($template_file_name) = @_; local $/; open my $fh, '<', $template_file_name or die "$template_file_name: + $!"; $templateText = <$fh>; close $fh; return $templateText; }

This workaround saves you from installing the Text::CSV Module.


Comment on Re^12: Processing CSV File
Select or Download Code
Re^13: Processing CSV File
by Perl3r (Initiate) on Oct 05, 2012 at 06:00 UTC

    I get the following error

    Can't locate Text/CSV_PP.pm in @INC (@INC contains: /Library/Perl/5.12/darwin-thread-multi-2level ....
    I did the same thing for the CSV_PP.pm, as was done for the CSV.pm.. ie downloaded the code, and created a CSV_PP.pm in the same directory..
    Though no joy there..
    Any other ideas?
    Thanks

      Yes, but it's likely you're not going to like it...

      Install Text::CSV, and use the following script:

      #!/usr/bin/perl # use strict; use warnings; use Text::CSV; $ARGV[0] or die "Usage: $0 <filename> [<filename>] ..."; my ( $template_file_name, $templateText, %hash ) = ''; my $csv = Text::CSV->new( { binary => 1, eol => $/ } ) or die "Cannot use CSV: " . Text::CSV->error_diag(); for my $csvFile (@ARGV) { print "\nProcesing file $csvFile ...\n"; open my $csvfh, '<:crlf', $csvFile or die "Unable to open $csvFile +: $!"; # Ignore column names in first line my $columnNames = $csv->getline($csvfh); # Get vars from second line my @vars = @{ $csv->getline($csvfh) }; # Process each csv line while ( my $row = $csv->getline($csvfh) ) { my $templateFN = pop @$row; if ( $template_file_name ne $templateFN ) { $template_file_name = $templateFN; undef $templateText; } # keys: fields from second line; values: fields from csv line @hash{@vars} = @$row; $templateText //= getTemplateText($template_file_name); my $templateTextCopy = $templateText; $templateTextCopy =~ s/$_/$hash{$_}/g for keys %hash; my $ofile_name = $hash{'##rtrname##'} . '.txt'; print "Writing to file: $ofile_name\n"; open my $fh, '>', $ofile_name or die "$ofile_name: $!"; print $fh $templateTextCopy; close $fh; } close $csvfh; } print "\nDone!\n"; sub getTemplateText { my ($template_file_name) = @_; local $/; open my $fh, '<', $template_file_name or die "$template_file_name: + $!"; $templateText = <$fh>; close $fh; return $templateText; }

      If you try it on one machine and it resolves the uninitialized error issue, then there's more diagnostic information to work with.

Re^13: Processing CSV File
by Tux (Monsignor) on Oct 05, 2012 at 09:53 UTC
    • When using Text::CSV_XS or Text::CSV do not pass eol on parser objects when eol is withing default realms. That is all handled automatically.
    • Then "<:crnl" will not be required at all.
    • If needing CSV parsing and CSV writing, make twoCSV objects where only the writing object defines eol
    • Use auto_diag!
    # No eol and auto_diag > 1 will cause die's on error (with diagnostics +) my $csv = Text::CSV_XS->new ({ binary => 1, auto_diag => 2 });

    Enjoy, Have FUN! H.Merijn

      Excellent, Tux, thank you. Appreciate you looking at this code, and will make the auto_diag change.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://997387]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (6)
As of 2014-08-02 05:05 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Who would be the most fun to work for?















    Results (54 votes), past polls