(Perl) CSV Insert Column

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Insert a new column into an existing CSV.

Note: This example requires Chilkat v9.5.0.89 or greater because the InsertColumn method was added in v9.5.0.89.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

$csv = chilkat::CkCsv->new();

# Load the following CSV:

#  Name;City;Weight
#  John;Chicago;180
#  Lisa;Denver;120

# Indicate that the 1st line contains column names.
$csv->put_HasColumnNames(1);
$success = $csv->LoadFile("qa_data/csv/insertColumnTest.csv");

# We can insert a column before the 1st column.
$csv->InsertColumn(0);

print $csv->saveToString() . "\r\n";

# The CSV now looks like this:

#  ;Name;City;Weight
#  ;John;Chicago;180
#  ;Lisa;Denver;120

# Set the cells in column 0.

$col = 0;
$csv->SetColumnName($col,"id");
$csv->SetCell(0,$col,"100");
$csv->SetCell(1,$col,"101");

print $csv->saveToString() . "\r\n";

# We now have:

#  id;Name;City;Weight
#  100;John;Chicago;180
#  101;Lisa;Denver;120

# Insert a new column between City and Weight
# In other words, add a new column before the Weight column.
$weightColumn = $csv->GetIndex("Weight");
print "Weight Column Index = " . $weightColumn . "\r\n";
$csv->InsertColumn($weightColumn);

print $csv->saveToString() . "\r\n";

# We now have:

#  id;Name;City;;Weight
#  100;John;Chicago;;180
#  101;Lisa;Denver;;120

# Set the cells in the new column:

$csv->SetColumnName($weightColumn,"Height");
$csv->SetCell(0,$weightColumn,"6' 2\"");
$csv->SetCell(1,$weightColumn,"5' 7\"");

print $csv->saveToString() . "\r\n";

# We now have:

#  id;Name;City;Height;Weight
#  100;John;Chicago;"6' 2""";180
#  101;Lisa;Denver;"5' 7""";120