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Basic MT940 parser with implementations of Dutch banks

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MT940

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Full parser for MT940 files, see MT940. Initially this is based on the original gem of Frank Oxener - Agile Dovadi BV but as of version 2.0 completely rewritten in order to support MT940-structured format introduced by SEPA.

The following (Dutch) banks are implemented:

  • ABN Amro
  • ING
  • Rabobank
  • Triodos
  • Knab
  • van Lanschot
  • SNS Reaal
  • Deutsche Bank

Usage

With the file name as argument:

file_name = '~/Downloads/ing.940'

@parse_result = MT940Structured::Parser.parse_mt940(file_name)

or with the file itself:

file_name = '~/Downloads/ing.940'

file = File.open(file_name)

@parse_result = MT940Structured::Parser.parse_mt940(file)

after parsing:

@parse_result.each do |account_number, bank_statements|
  puts "Account number #{account_number} has #{bank_statements.size} bank statements"
  bank_statements.each do |bank_statement|
    puts "Bank statement has balance of #{bank_statement.previous_balance.amount} at date #{bank_statement.previous_balance.date}"
    bank_statement.transactions.each do |transaction|
      # do something with transaction
      # ...
    end
    puts "Bank statement has new balance of #{bank_statement.new_balance.amount} at date #{bank_statement.new_balance.date}"
  end
end
  • Independent of the bank

    • a parse_result consists of:

      • a map with account numbers as key and a list of BankStatements (http://en.wikipedia.org/wiki/Bank_statement)
      • A BankStatement is a summary of financial transaction in a certain period of time.
        • It is a Struct
        • It contains a previous_balance (Balance) and a new_balance (Balance)
        • It has a list of Transactions
          • a transaction always consists of:
            • accountnumber
            • bank (for example Ing, Rabobank or Unknown)
            • date
            • amount (which is negative in case of a withdrawal)
            • description
            • contra account
  • With the Rabobank its owner is extracted as well.

Running tests

bundle install

bundle exec rake spec

Copyright

Copyright (c) 2012 Frank Oxener - Agile Dovadi BV. See LICENSE.txt for further details.

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