# remote_table Open Google Docs spreadsheets, local or remote XLSX, XLS, ODS, CSV (comma separated), TSV (tab separated), other delimited, fixed-width files. Tested on MRI 1.8, MRI 1.9, and JRuby 1.6.7+. Thread-safe. ## Real-world usage

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We use `remote_table` for [data science at Brighter Planet](http://brighterplanet.com/research) and in production at * [Brighter Planet's impact estimate web service](http://impact.brighterplanet.com) * [Brighter Planet's reference data web service](http://data.brighterplanet.com) It's also a big part of * the [`data_miner`](https://github.com/seamusabshere/data_miner) library * the [`earth`](https://github.com/brighterplanet/earth) library ## Example >> require 'remote_table' => true >> t = RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/98guide6.zip', :filename => '98guide6.csv' => #, @extend_bang_mutex=#, @errata_mutex=#, @cache=[], @download_count=0, @url="http://www.fueleconomy.gov/FEG/epadata/98guide6.zip", @format=nil, @headers=:first_row, @compression=:zip, @packing=nil, @streaming=false, @warn_on_multiple_downloads=true, @delimiter=",", @sheet=nil, @keep_blank_rows=false, @form_data=nil, @skip=0, @internal_encoding="UTF-8", @row_xpath=nil, @column_xpath=nil, @row_css=nil, @column_css=nil, @glob=nil, @filename="98guide6.csv", @transform_settings=nil, @cut=nil, @crop=nil, @schema=nil, @schema_name=nil, @pre_select=nil, @pre_reject=nil, @errata_settings=nil, @other_options={}, @transformer=#, @legacy_transformer_mutex=#>, @local_copy=#, @encoded_io_mutex=#, @generate_mutex=#>> >> t.rows.length => 806 >> t.rows.first.length => 26 >> require 'pp' => true >> pp t[23] {"Class"=>"TWO SEATERS", "Manufacturer"=>"PORSCHE", "carline name"=>"BOXSTER", "displ"=>"2.5", "cyl"=>"6", "trans"=>"Manual(M5)", "drv"=>"R", "cty"=>"19", "hwy"=>"26", "cmb"=>"22", "ucty"=>"21.2", "uhwy"=>"33.9499", "ucmb"=>"25.5114", "fl"=>"P", "G"=>"", "T"=>"", "S"=>"", "2pv"=>"", "2lv"=>"", "4pv"=>"", "4lv"=>"", "hpv"=>"", "hlv"=>"", "fcost"=>"956", "eng dscr"=>"", "trans dscr"=>""} ## Columns and rows * If there are headers, you get an Array of Hashes with **string keys**. * If you set :headers => false, then you get an Array of Arrays. ## Row keys Row keys are **strings**. Row keys are NOT symbolized. row['foobar'] # correct row[:foobar] # incorrect You can call symbolize_keys yourself, but we don't do it automatically to avoid creating loads of garbage symbols. ## Supported formats
Format Notes Library
Delimited (CSV, TSV, etc.) All RemoteTable::Delimited::PASSTHROUGH_CSV_SETTINGS, for example :col_sep, are passed directly to fastercsv. fastercsv (1.8); stdlib (1.9)
Fixed width You have to set up a :schema. fixed_width-multibyte
HTML See XML. nokogiri
ODS roo
XLS roo
XLSX roo
XML The idea is to set up a :row_[xpath|css] and (optionally) a :column_[xpath|css]. nokogiri
## Compression and packing You can directly pick a file out of a remote archive using :filename or use a :glob. * zip * tar * bz2 * gz * exe (treated as zip) ## Encoding Everything is forced into UTF-8. You can improve the quality of the conversion by specifying the original encoding with `:encoding` * ASCII-8BIT and BINARY are equal * ISO-8859-1 and Latin1 are equal ## More examples RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdHRNaVpSUWw2Z2VhN3RUV25yYWdQX2c&output=csv') # aircraft fuel use equations derived from EMEP/EEA and ICAO RemoteTable.new('https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdEhYenF3dGt1T0Y1cTdneUNsNjV0dEE&output=csv') # distance classes from the WRI business travel tool and UK DEFRA/DECC GHG Conversion Factors for Company Reporting RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdFBKM0xWaUhKVkxDRmdBVkE3VklxY2c&hl=en&gid=0&output=csv') # seat classes used in the WRI GHG Protocol calculation tools RemoteTable.new('https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdG9EdmxybG1wdC1iU3JRYXNkMGhvSnc&output=csv') # pure automobile fuels RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdE9xTEdueFM2R0diNTgxUlk1QXFSb2c&gid=0&output=csv') # blended automobile fuels RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdEswNGIxM0U4U0N1UUppdWw2ejJEX0E&gid=0&output=csv') # A list of hybrid make model years derived from the EPA fuel economy guide RemoteTable.new('https://docs.google.com/spreadsheet/pub?hl=en_US&hl=en_US&key=0AoQJbWqPrREqdGtzekE4cGNoRGVmdmZMaTNvOWluSnc&output=csv') # BTS aircraft type lookup table RemoteTable.new("http://www.transtats.bts.gov/Download_Lookup.asp?Lookup=L_AIRCRAFT_TYPE", :errata => { RemoteTable.new('https://spreadsheets.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdEZ2d3JQMzV5T1o1T3JmVlFyNUZxdEE&output=csv' }) # aircraft made by whitelisted manufacturers whose ICAO code starts with 'B' from the FAA # for definition of `Aircraft::Guru` and `manufacturer_whitelist?` see https://github.com/brighterplanet/earth/blob/master/lib/earth/air/aircraft/data_miner.rb RemoteTable.new("http://www.faa.gov/air_traffic/publications/atpubs/CNT/5-2-B.htm", :encoding => 'windows-1252', :row_xpath => '//table/tr[2]/td/table/tr', :column_xpath => 'td', :errata => { RemoteTable.new('https://spreadsheets.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdGVBRnhkRGhSaVptSDJ5bXJGbkpUSWc&output=csv', :responder => Aircraft::Guru.new }, :select => proc { |record| manufacturer_whitelist? record['Manufacturer'] }) # OpenFlights.org airports database RemoteTable.new('https://openflights.svn.sourceforge.net/svnroot/openflights/openflights/data/airports.dat', :headers => %w{ id name city country_name iata_code icao_code latitude longitude altitude timezone daylight_savings }, :select => proc { |record| record['iata_code'].present? }, :errata => { RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdFc2UzhQYU5PWEQ0N21yWFZGNmc2a3c&gid=0&output=csv', :responder => Airport::Guru.new }) # see https://github.com/brighterplanet/earth/blob/master/lib/earth/air/aircraft/data_miner.rb # T100 flight segment data for #{month.strftime('%B %Y')} # for definition of `form_data` and `FlightSegment::Guru` see https://github.com/brighterplanet/earth/blob/master/lib/earth/air/flight_segment/data_miner.rb RemoteTable.new('http://www.transtats.bts.gov/DownLoad_Table.asp', :form_data => form_data, :compression => :zip, :glob => '/*.csv', :errata => { RemoteTable.new('https://spreadsheets.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdGxpYU1qWFR3d0syTVMyQVVOaDd0V3c&output=csv', :responder => FlightSegment::Guru.new }, :select => proc { |record| record['DEPARTURES_PERFORMED'].to_i > 0 }) # 1995 Fuel Economy Guide # for definition of `:fuel_economy_guide_b` and `AutomobileMakeModelYearVariant::ParserB` see https://github.com/brighterplanet/earth/blob/master/lib/earth/automobile/automobile_make_model_year_variant/data_miner.rb RemoteTable.new("http://www.fueleconomy.gov/FEG/epadata/95mfgui.zip", :filename => '95MFGUI.DAT', :format => :fixed_width, :cut => '13-', :schema_name => :fuel_economy_guide_b, :select => proc { |row| row['model'].present? and (row['suppress_code'].blank? or row['suppress_code'].to_f == 0) and row['state_code'] == 'F' }, :transform => { :class => AutomobileMakeModelYearVariant::ParserB, :year => 1995 }, :errata => { :url => "https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdDkxTElWRVlvUXB3Uy04SDhSYWkzakE&output=csv", :responder => AutomobileMakeModelYearVariant::Guru.new }) # 1998 Fuel Economy Guide # for definition of `AutomobileMakeModelYearVariant::ParserC` see https://github.com/brighterplanet/earth/blob/master/lib/earth/automobile/automobile_make_model_year_variant/data_miner.rb RemoteTable.new('http://www.fueleconomy.gov/FEG/epadata/98guide6.zip', :filename => '98guide6.csv', :transform => { :class => AutomobileMakeModelYearVariant::ParserC, :year => 1998 }, :errata => { :url => "https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdDkxTElWRVlvUXB3Uy04SDhSYWkzakE&output=csv", :responder => AutomobileMakeModelYearVariant::Guru.new }, :select => proc { |row| row['model'].present? }) # annual corporate average fuel economy data for domestic and imported vehicle fleets from the NHTSA RemoteTable.new('https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdEdXWXB6dkVLWkowLXhYSFVUT01sS2c&hl=en&gid=0&output=csv', :errata => { 'url' => 'http://static.brighterplanet.com/science/data/transport/automobiles/make_fleet_years/errata.csv' }, :select => proc { |row| row['volume'].to_i > 0 }) # total vehicle miles travelled by gasoline passenger cars from the 2010 EPA GHG Inventory RemoteTable.new('http://www.epa.gov/climatechange/emissions/downloads10/2010-Inventory-Annex-Tables.zip', :filename => 'Annex Tables/Annex 3/Table A-87.csv', :skip => 1, :select => proc { |row| row['Year'].to_i.to_s == row['Year'] }) # total vehicle miles travelled from the 2010 EPA GHG Inventory RemoteTable.new('http://www.epa.gov/climatechange/emissions/downloads10/2010-Inventory-Annex-Tables.zip', :filename => 'Annex Tables/Annex 3/Table A-87.csv', :skip => 1, :select => proc { |row| row['Year'].to_i.to_s == row['Year'] }) # total travel distribution from the 2010 EPA GHG Inventory RemoteTable.new('http://www.epa.gov/climatechange/emissions/downloads10/2010-Inventory-Annex-Tables.zip', :filename => 'Annex Tables/Annex 3/Table A-93.csv', :skip => 1, :select => proc { |row| row['Vehicle Age'].to_i.to_s == row['Vehicle Age'] }) # building characteristics from the 2003 EIA Commercial Building Energy Consumption Survey RemoteTable.new('http://www.eia.gov/emeu/cbecs/cbecs2003/public_use_2003/data/FILE02.csv', :skip => 1, :headers => ["PUBID8","REGION8","CENDIV8","SQFT8","SQFTC8","YRCONC8","PBA8","ELUSED8","NGUSED8","FKUSED8","PRUSED8","STUSED8","HWUSED8","ONEACT8","ACT18","ACT28","ACT38","ACT1PCT8","ACT2PCT8","ACT3PCT8","PBAPLUS8","VACANT8","RWSEAT8","PBSEAT8","EDSEAT8","FDSEAT8","HCBED8","NRSBED8","LODGRM8","FACIL8","FEDFAC8","FACACT8","MANIND8","PLANT8","FACDST8","FACDHW8","FACDCW8","FACELC8","BLDPLT8","ADJWT8","STRATUM8","PAIR8"]) # 2003 CBECS C17 - Electricity Consumption and Intensity - New England Division # for definition of `CbecsEnergyIntensity::NAICS_CODE_SYNTHESIZER` see https://github.com/brighterplanet/earth/blob/master/lib/earth/industry/cbecs_energy_intensity/data_miner.rb RemoteTable.new("http://www.eia.gov/emeu/cbecs/cbecs2003/detailed_tables_2003/2003set10/2003excel/C17.xls", :headers => false, :select => proc { |row| CbecsEnergyIntensity::NAICS_CODE_SYNTHESIZER.call(row) }, :crop => (21..37)) # U.S. Census 2002 NAICS code list RemoteTable.new('http://www.census.gov/epcd/naics02/naicod02.txt', :skip => 4, :headers => false, :delimiter => ' ') # MECS table 3.2 Total US RemoteTable.new("http://205.254.135.24/emeu/mecs/mecs2006/excel/Table3_2.xls", :crop => (15..94), :headers => ["NAICS Code", "Subsector and Industry", "Total", "BLANK", "Net Electricity", "BLANK", "Residual Fuel Oil", "Distillate Fuel Oil", "Natural Gas", "BLANK", "LPG and NGL", "BLANK", "Coal", "Coke and Breeze", "Other"]) # MECS table 6.1 Midwest RemoteTable.new("http://205.254.135.24/emeu/mecs/mecs2006/excel/Table6_1.xls", :crop => (184..263), :headers => ["NAICS Code", "Subsector and Industry", "Consumption per Employee", "Consumption per Dollar of Value Added", "Consumption per Dollar of Value of Shipments"]) # U.S. Census Geographic Terms and Definitions RemoteTable.new('http://www.census.gov/popest/about/geo/state_geocodes_v2009.txt', :skip => 6, :headers => %w{ Region Division FIPS Name }, :select => proc { |row| row['Division'].to_i > 0 and row['FIPS'].to_i == 0 }) # state census divisions from the U.S. Census RemoteTable.new('http://www.census.gov/popest/about/geo/state_geocodes_v2009.txt', :skip => 8, :headers => ['Region', 'Division', 'State FIPS', 'Name'], :select => proc { |row| row['State FIPS'].to_i > 0 }) # OpenGeoCode.org's Country Codes to Country Names list RemoteTable.new('http://opengeocode.org/download/countrynames.txt', :format => :delimited, :delimiter => ';', :headers => false, :skip => 22) # heating degree day data from WRI CAIT RemoteTable.new('https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdDN4MkRTSWtWRjdfazhRdWllTkVSMkE&output=csv', :select => Proc.new { |record| record['country'] != 'European Union (27)' }, :errata => { RemoteTable.new('https://docs.google.com/spreadsheet/pub?key=0AoQJbWqPrREqdDNSMUtCV0h4cUF4UnBKZlNkczlNbFE&output=csv' }) # US average grid loss factor derived eGRID 2007 data RemoteTable.new('http://www.epa.gov/cleanenergy/documents/egridzips/eGRID2010V1_1_STIE_USGC.xls', :sheet => 'USGC', :skip => 5) # eGRID 2010 regions and loss factors RemoteTable.new('http://www.epa.gov/cleanenergy/documents/egridzips/eGRID2010V1_1_STIE_USGC.xls', :sheet => 'STIE07', :skip => 4, :select => proc { |row| row['eGRID2010 year 2007 file state sequence number'].to_i.between?(1, 51) }) # eGRID 2010 subregions and electricity emission factors RemoteTable.new('http://www.epa.gov/cleanenergy/documents/egridzips/eGRID2010_Version1-1_xls_only.zip', :filename => 'eGRID2010V1_1_year07_AGGREGATION.xls', :sheet => 'SRL07', :skip => 4, :select => proc { |row| row['SEQSRL07'].to_i.between?(1, 26) }) # U.S. Census State ANSI Code file RemoteTable.new('http://www.census.gov/geo/www/ansi/state.txt', :delimiter => '|', :select => proc { |record| record['STATE'].to_i < 60 }) # Mapping Hacks zipcode database RemoteTable.new('http://mappinghacks.com/data/zipcode.zip', :filename => 'zipcode.csv') # zipcode states and eGRID Subregions from the US EPA RemoteTable.new('http://www.epa.gov/cleanenergy/documents/egridzips/Power_Profiler_Zipcode_Tool_v3-2.xlsx', :sheet => 'Zip-subregion') # horse breeds RemoteTable.new('http://www.freebase.com/type/exporttypeinstances/base/horses/horse_breed?page=0&filter_mode=type&filter_view=table&show%01p%3D%2Ftype%2Fobject%2Fname%01index=0&show%01p%3D%2Fcommon%2Ftopic%2Fimage%01index=1&show%01p%3D%2Fcommon%2Ftopic%2Farticle%01index=2&sort%01p%3D%2Ftype%2Fobject%2Ftype%01p%3Dlink%01p%3D%2Ftype%2Flink%2Ftimestamp%01index=false&=&exporttype=csv-8') # Brighter Planet's list of cat and dog breeds, genders, and weights RemoteTable.new('http://static.brighterplanet.com/science/data/consumables/pets/breed_genders.csv', :encoding => 'ISO-8859-1', :select => proc { |row| row['gender'].present? }) # residential electricity prices from the EIA RemoteTable.new('http://www.eia.doe.gov/cneaf/electricity/page/sales_revenue.xls', :select => proc { |row| row['Year'].to_s.first(4).to_i > 1989 }) # residential natural gas prices from the EIA # for definition of `NaturalGasParser` see https://github.com/brighterplanet/earth/blob/master/lib/earth/residence/residence_fuel_price/data_miner.rb RemoteTable.new('http://tonto.eia.doe.gov/dnav/ng/xls/ng_pri_sum_a_EPG0_FWA_DMcf_a.xls', :sheet => 'Data 1', :skip => 2, :select => proc { |row| row['year'].to_i > 1989 }, :transform => { :class => NaturalGasParser }) # 2005 EIA Residential Energy Consumption Survey microdata RemoteTable.new('http://www.eia.doe.gov/emeu/recs/recspubuse05/datafiles/RECS05alldata.csv', :headers => :upcase) # ...and more from the tests... RemoteTable.new 'http://spreadsheets.google.com/pub?key=t5HM1KbaRngmTUbntg8JwPA&single=true&gid=0' RemoteTable.new 'http://spreadsheets.google.com/pub?key=t5HM1KbaRngmTUbntg8JwPA' RemoteTable.new 'http://spreadsheets.google.com/pub?key=t5HM1KbaRngmTUbntg8JwPA', :skip => 1, :headers => false RemoteTable.new 'http://spreadsheets.google.com/pub?key=tObVAGyqOkCBtGid0tJUZrw' RemoteTable.new 'http://spreadsheets.google.com/pub?key=tObVAGyqOkCBtGid0tJUZrw', :headers => %w{ col1 col2 col3 } RemoteTable.new 'http://spreadsheets.google.com/pub?key=tujrgUOwDSLWb-P4KCt1qBg' RemoteTable.new 'http://tonto.eia.doe.gov/dnav/pet/xls/PET_PRI_RESID_A_EPPR_PTA_CPGAL_M.xls', :transform => { :class => FuelOilParser } RemoteTable.new 'http://www.freebase.com/type/exporttypeinstances/base/horses/horse_breed?page=0&filter_mode=type&filter_view=table&show%01p%3D%2Ftype%2Fobject%2Fname%01index=0&show%01p%3D%2Fcommon%2Ftopic%2Fimage%01index=1&show%01p%3D%2Fcommon%2Ftopic%2Farticle%01index=2&sort%01p%3D%2Ftype%2Fobject%2Ftype%01p%3Dlink%01p%3D%2Ftype%2Flink%2Ftimestamp%01index=false&=&exporttype=csv-8' RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/02data.zip', :filename => 'guide_jan28.xls' RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/08data.zip', :filename => '2008_FE_guide_ALL_rel_dates_-no sales-for DOE-5-1-08.csv' RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/08data.zip', :glob => '/*.csv' RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/98guide6.zip', :filename => '98guide6.csv' RemoteTable.new 'http://www.worldmapper.org/data/opendoc/2_worldmapper_data.ods', :sheet => 'Data', :keep_blank_rows => true RemoteTable.new 'https://spreadsheets.google.com/pub?key=t5HM1KbaRngmTUbntg8JwPA' RemoteTable.new 'www.customerreferenceprogram.org/uploads/CRP_RFP_template.xlsx' RemoteTable.new 'www.customerreferenceprogram.org/uploads/CRP_RFP_template.xlsx', :headers => %w{foo bar baz} RemoteTable.new 'www.customerreferenceprogram.org/uploads/CRP_RFP_template.xlsx', :headers => false RemoteTable.new 'http://www.transtats.bts.gov/DownLoad_Table.asp?Table_ID=293&Has_Group=3&Is_Zipped=0', :form_data => 'UserTableName=T_100_Segment__All_Carriers&[...]', :compression => :zip, :glob => '/*.csv' RemoteTable.new "http://www.faa.gov/air_traffic/publications/atpubs/CNT/5-2-E.htm", :encoding => 'US-ASCII', :row_xpath => '//table/tr[2]/td/table/tr', :column_xpath => 'td' RemoteTable.new "http://www.faa.gov/air_traffic/publications/atpubs/CNT/5-2-G.htm", :encoding => 'windows-1252', :row_xpath => '//table/tr[2]/td/table/tr', :column_xpath => 'td', :errata => Errata.new(:url => 'http://spreadsheets.google.com/pub?key=tObVAGyqOkCBtGid0tJUZrw', :responder => AircraftGuru.new) RemoteTable.new "http://www.faa.gov/air_traffic/publications/atpubs/CNT/5-2-G.htm", :encoding => 'windows-1252', :row_xpath => '//table/tr[2]/td/table/tr', :column_xpath => 'td', :errata => { :url => 'http://spreadsheets.google.com/pub?key=tObVAGyqOkCBtGid0tJUZrw', :responder => AircraftGuru.new } RemoteTable.new 'http://www.fueleconomy.gov/FEG/epadata/00data.zip', :filename => 'Gd6-dsc.txt', :format => :fixed_width, :crop => 21..26, # inclusive :cut => '2-', :select => proc { |row| /\A[A-Z]/.match row['code'] }, :schema => [[ 'code', 2, { :type => :string } ], [ 'spacer', 2 ], [ 'name', 52, { :type => :string } ]] RemoteTable.new 'http://cloud.github.com/downloads/seamusabshere/remote_table/test2.fixed_width.txt', :format => :fixed_width, :skip => 1, :schema => [[ 'header4', 10, { :type => :string } ], [ 'spacer', 1 ], [ 'header5', 10, { :type => :string } ], [ 'spacer', 12 ], [ 'header6', 10, { :type => :string } ]] RemoteTable.new 'http://cloud.github.com/downloads/seamusabshere/remote_table/test2.fixed_width.txt', :format => :fixed_width, :keep_blank_rows => true, :skip => 1, :schema => [[ 'header4', 10, { :type => :string } ], [ 'spacer', 1 ], [ 'header5', 10, { :type => :string } ], [ 'spacer', 12 ], [ 'header6', 10, { :type => :string } ]] RemoteTable.new 'http://cloud.github.com/downloads/seamusabshere/remote_table/remote_table_row_hash_test.fixed_width.txt', :format => :fixed_width, :skip => 1, :schema => [[ 'header1', 10, { :type => :string } ], [ 'spacer', 1 ], [ 'header2', 10, { :type => :string } ], [ 'spacer', 12 ], [ 'header3', 10, { :type => :string } ]] RemoteTable.new 'http://cloud.github.com/downloads/seamusabshere/remote_table/remote_table_row_hash_test.alternate_order.fixed_width.txt', :format => :fixed_width, :skip => 1, :schema => [[ 'spacer', 11 ], [ 'header2', 10, { :type => :string } ], [ 'spacer', 1 ], [ 'header3', 10, { :type => :string } ], [ 'spacer', 1 ], [ 'header1', 10, { :type => :string } ]] ## Requirements * Unix tools like curl, iconv, perl, cat, cut, tail, etc. accessible from your `$PATH` ## Wishlist * Win32 compat * The new "custom parser" syntax (aka transformer) hasn't been defined yet... only the old-style syntax is available ## Authors * Seamus Abshere * Andy Rossmeissl ## Copyright Copyright (c) 2012 Brighter Planet. See LICENSE for details.