__PACKAGE__->attr('full_path');
+sub ext { '\.[ct]sv$' };
+
sub data {
my $self = shift;
my $path = $self->full_path;
my $encoding = 'utf-8';
- if ( $path =~ m/\.(\w+).csv/i ) {
+ if ( $path =~ m/\.([\w\-]+).[ct]sv/i ) {
$encoding = $1;
}
my $data = { items => [] };
my @header;
- my $csv = Text::CSV->new ( { binary => 1, eol => $/ } )
+ open my $fh, "<:encoding($encoding)", $path or die "$path: $!";
+ my $first = <$fh>;
+ my $possible_delimiters;
+ while ( $first =~ s/(\W)// ) {
+ $possible_delimiters->{$1}++;
+ }
+ warn "# possible_delimiters = ",dump($possible_delimiters);
+ seek $fh,0,0; # rewind for Text::CSV
+
+ my @sep_by_usage = sort { $possible_delimiters->{$b} <=> $possible_delimiters->{$a} } keys %$possible_delimiters;
+ my $sep_char = shift @sep_by_usage;
+ while ( $sep_char =~ m/^\s$/ ) {
+ last if $sep_char eq "\t" && $path =~ m/\.tsv$/i;
+ warn "## skip whitespace separator ",dump($sep_char);
+ $sep_char = shift @sep_by_usage;
+ }
+
+ while ( $sep_char =~ m/^\"$/ ) {
+ warn "## skip quote separator ",dump($sep_char);
+ $sep_char = shift @sep_by_usage;
+ }
+
+ if ( $sep_char !~ m/,/ && $possible_delimiters->{','} && $path =~ m/\.csv/i ) {
+ $sep_char = ',';
+ warn "## csv file detected so prefer , as separator";
+ }
+
+ warn "sep_char = [$sep_char] for $path\n";
+
+ my $csv = Text::CSV->new ( { binary => 1, eol => $/, sep_char => $sep_char } )
or die "Cannot use CSV: ".Text::CSV->error_diag ();
- open my $fh, "<:encoding($encoding)", $path or die "$path: $!";
while ( my $row = $csv->getline( $fh ) ) {
if ( ! @header ) {
@header = @$row;
+ $header[0] =~ s/^#// if $path =~ m/\.tsv/i; # remove hash from 1st column
next;
}
my $item;