Class: RdbCSVReader::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/rdb_csv/reader.rb

Instance Method Summary collapse

Constructor Details

#initialize(fp, db, delimiter, options) ⇒ Reader

Returns a new instance of Reader.



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# File 'lib/rdb_csv/reader.rb', line 3

def initialize(fp, db, delimiter, options)
  @fp = fp
  @db = db
  @delimiter = delimiter
  @escape = options[:escape] || "\\" # 1 char
  @linefeed = options[:linefeed] || "\n"
  @quote = options[:quote] || '"'
end

Instance Method Details

#each_line ⇒ Object 



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# File 'lib/rdb_csv/reader.rb', line 12

def each_line
  str = ''
  row = []
  quote_num = 0

  each_char do |char|
    if quote_num > 0
      if str[-1] == @quote && char == @quote
        quote_num -= 1
      elsif str[-1] != @quote && char == @quote
        quote_num -= 1
      elsif char == @quote
        quote_num += 1
      end
      str += char
    else
      if char == @delimiter
        row << str
        str = ''
      elsif char == @linefeed
        row << str
        yield RdbCSV::CSV::Row.new(row)
        row = []
        str = ''
      else
        quote_num += 1 if (str.size == 0 || str[0] == @quote) && char == @quote
        str += char
      end
    end
  end
end