Class: ETL::Parser::FixedWidthParser

Inherits:

Parser

• Object
• Parser
• ETL::Parser::FixedWidthParser

show all

Defined in:

lib/etl/parser/fixed_width_parser.rb

Overview

Instance Attribute Summary

Attributes inherited from Parser

#options, #source

Instance Method Summary (collapse)

• - (Object) each

  Return each row.

• - (Object) fields

  Return a map of defined fields.

• - (FixedWidthParser) initialize(source, options = {}) constructor

  Initialize the parser

  • source: The source object

  • options: Parser options Hash.

Methods inherited from Parser

class_for_name

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# File 'lib/etl/parser/fixed_width_parser.rb', line 8

def initialize(source, options={})
  super
  configure
end

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# File 'lib/etl/parser/fixed_width_parser.rb', line 14

def each
  Dir.glob(file).each do |file|
    open(file).each do |line|
      row = {}
      lines_skipped = 0
      fields.each do |name, f|
        if lines_skipped < source.skip_lines
          lines_skipped += 1
          next
        end
        # TODO make strip optional?
        row[name] = line[f.field_start, f.field_length].strip
      end
      yield row
    end
  end
end

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# File 'lib/etl/parser/fixed_width_parser.rb', line 33

def fields
  @fields ||= {}
end