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FastestCSV

Fastest CSV class for MRI Ruby and JRuby. Faster than faster_csv and fasterer-csv.

Uses native C code to parse CSV lines in MRI Ruby and Java in JRuby.

Supports standard CSV according to RFC4180. Not the so-called "csv" from Excel.

The interface is a subset of the CSV interface in Ruby 1.9.3. The options parameter is not supported.

Originally developed to parse large CSV log files from PowerMTA.

Installation

Add this line to your application's Gemfile:

gem 'fastest-csv'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fastest-csv

Usage

Parse single line

FastestCSV.parse_line("one,two,three")
 => ["one", "two", "three"]

"one,two,three".parse_csv
 => ["one", "two", "three"]

Parse file without header

FastestCSV.foreach("path/to/file.csv") do |row|
  # ...
end

Parse file with header

FastestCSV.open("path/to/file.csv") do |csv|
  fields = csv.shift
  while values = csv.shift
    # ...
  end
end

Parse file in array of arrays

rows = FastestCSV.read("path/to/file.csv")

Parse string in array of arrays

rows = FastestCSV.parse(csv_data)

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

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Fastest CSV class for MRI Ruby and JRuby. Faster than faster_csv and fasterer-csv.

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