method

generate_row

v1_8_7_330 - Show latest stable - 0 notes - Class: CSV

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What's this?

generate_row(src, cells, out_dev, fs = nil, rs = nil) public

Convert a line from cells data to string. Consider using CSV.generate_line instead. To generate multi-row CSV string, see EXAMPLE below.

EXAMPLE

row1 = ['a', 'b']
row2 = ['c', 'd']
row3 = ['e', 'f']
src = [row1, row2, row3]
buf = ''
src.each do |row|
  parsed_cells = CSV.generate_row(row, 2, buf)
  puts "Created #{ parsed_cells } cells."
end
p buf

ARGS

src: an Array of String to be converted to CSV string.  Must respond to
  'size' and '[](idx)'.  src[idx] must return String.
cells: num of cells in a line.
out_dev: buffer for generated CSV string.  Must respond to '<<(string)'.
col_sep: Column separator.  ?, by default.  If you want to separate
  fields with semicolon, give ?; here.
row_sep: Row separator.  nil by default.  nil means "\r\n or \n".  If you
  want to separate records with \r, give ?\r here.

RETURNS

parsed_cells: num of converted cells.

Show source

# File lib/csv.rb, line 271
  def CSV.generate_row(src, cells, out_dev, fs = nil, rs = nil)
    fs ||= ','
    if fs.is_a?(Fixnum)
      fs = fs.chr
    end
    if !rs.nil? and rs.is_a?(Fixnum)
      rs = rs.chr
    end
    src_size = src.size
    if (src_size == 0)
      if cells == 0
        generate_separator(:DT_ROWSEP, out_dev, fs, rs)
      end
      return 0
    end
    res_type = :DT_COLSEP
    parsed_cells = 0
    generate_body(src[parsed_cells], out_dev, fs, rs)
    parsed_cells += 1
    while ((parsed_cells < cells) and (parsed_cells != src_size))
      generate_separator(:DT_COLSEP, out_dev, fs, rs)
      generate_body(src[parsed_cells], out_dev, fs, rs)
      parsed_cells += 1
    end
    if (parsed_cells == cells)
      generate_separator(:DT_ROWSEP, out_dev, fs, rs)
    else
      generate_separator(:DT_COLSEP, out_dev, fs, rs)
    end
    parsed_cells
  end

generate_row

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