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authorHarald Eilertsen <haraldei@anduin.net>2015-02-02 18:59:12 +0100
committerHarald Eilertsen <haraldei@anduin.net>2015-02-02 18:59:53 +0100
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treee70ed92ba61b64044339b8b4dd163b3eb30c36ce /lib/norwegian-postcodes.rb
parent743dadd3f7cfabd9d0dbaebff3b4f07d32c5f1ef (diff)
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Rename files and prepare for release.v0.1.0
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-rw-r--r--lib/norwegian-postcodes.rb117
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diff --git a/lib/norwegian-postcodes.rb b/lib/norwegian-postcodes.rb
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--- a/lib/norwegian-postcodes.rb
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-module PostCodes
-
- require 'norwegian-postcodes/railtie' if defined?(Rails)
-
- # Correspond to the Norwegian 'Fylke'
- Counties = [
- "ØSTFOLD",
- "AKERSHUS",
- "OSLO",
- "HEDMARK",
- "OPPLAND",
- "BUSKERUD",
- "VESTFOLD",
- "TELEMARK",
- "AUST-AGDER",
- "VEST-AGDER",
- "ROGALAND",
- "HORDALAND",
- "(BERGEN)",
- "SOGN OG FJORDANE",
- "MØRE OG ROMSDAL",
- "SØR-TRØNDELAG",
- "NORD-TRØNDELAG",
- "NORDLAND",
- "TROMS",
- "FINNMARK",
- "SVALBARD",
- "JAN MAYEN",
- "KONTINENTALSOKKELEN"
- ]
-
- # Class for holding postcode data
- class PostCode
- # Four digit post code
- attr_reader :postcode
-
- # Name of city
- attr_reader :city
-
- # Four digit municipality ('kommune') id
- attr_reader :municipality
-
- # Name of municipality ('kommune')
- attr_reader :municipality_name
-
- # Category
- # * 'G' = street address
- # * 'P' = Postboxes
- # * 'B' = Both street addresses and postboxes
- # * 'S' = Service addresses
- # * 'K' = Customer with its own post code
- # * 'F' = Multiple uses
- attr_reader :cat
-
- # Create a new post code.
- # This method should generally not be used by users of the library.
- def initialize(postcode, city, muni, muni_name, cat)
- @postcode, @city, @municipality, @municipality_name, @cat = postcode, city, muni, muni_name, cat
- end
-
- # Return the County ('kommune') from the postcode data.
- # The returned format is `[county_id, county_name]`
- def county
- code = @municipality[0..1].to_i
- [code, PostCodes.county(code)]
- end
-
- # Output postcode data in the same format as in the original postcode database.
- def to_s
- [@postcode, @city, @municipality, @municipality_name, @cat].join("\t")
- end
- end
-
- class << self
-
- # Load the postcode data into memory.
- #
- # +file+ is a file name or IO object to read the data from.
- def load(file)
- @postcodes = []
- if file.is_a?(String)
- f = File.open(file, :encoding => Encoding::ISO_8859_15)
- else
- f = file
- end
-
- f.each_line do |l|
- a = l.chomp().split("\t").map{|s| s.encode(Encoding::UTF_8)}
- @postcodes << PostCode.new(*a)
- end
- end
-
- # Search for a given postcode.
- #
- # Takes a 4 digit postcode as a string, and returns an object of
- # type PostCodes::PostCode, or +nil+ if the postcode was not found.
- #
- def search(postcode)
- res = @postcodes.bsearch {|x| x.postcode.to_i >= postcode.to_i}
- unless res.nil?
- res.postcode.to_i == postcode.to_i ? res : nil
- end
- end
-
- # Return the county by number.
- #
- # Takes a number between 1 and 23 as input. This corresponds to the
- # first two digits in the municipality number.
- #
- # The county name as a string is returned.
- #
- def county(index)
- return nil unless index > 0 && index <= Counties.size
- Counties[index - 1]
- end
- end
-end