Class: DiffParser

Inherits:
Object
  • Object
show all
Defined in:
lib/coopy/diff_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(fname) ⇒ DiffParser

Returns a new instance of DiffParser.



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# File 'lib/coopy/diff_parser.rb', line 5

def initialize(fname)
  @rows = CSV.read(fname)
end

Instance Method Details

#applyObject



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# File 'lib/coopy/diff_parser.rb', line 18

def apply
  rows = @rows
  render = @diff_output
  return if render.nil?
  render.begin_diff
  rcs = []
  columns = DiffColumns.new
  rows.each_with_index do |row, r|
    row_mode = ""
    open = false
    next if row.length == 0
    txt = row[0]
    txt = "" if txt.nil?
    if txt=="@" or txt=="@@"
      row_mode = "@@"
      columns.title_row = row
      columns.update
    elsif txt=="!" or txt=="+++" or txt=="---" or txt=="..." or txt.include? "->"
      row_mode = txt
      columns.change_row = row if txt=="!"
    else
      open = true
    end
    cmd = txt
    cells = []
    row.each_with_index do |val, c|
      next if c == 0
      nval = nil
      txt = ""
      txt = val.to_s unless val.nil?
      txt = "" if txt=="NULL"
      cell_mode = ""
      separator = ""
      if open and !columns.change_row.nil?
        change = columns.change_row[c]
        if change=="+++" or change == "---"
          cell_mode = change
        end
      end
      if cmd.to_s.include? "->"
        if txt.include? cmd
          cell_mode = "->"
          separator = cmd
          b = txt.index(cmd)
          val = txt[0,b]
          nval = txt[b+cmd.length,txt.length]
        end
      end
      cells << {
        :txt => txt,
        :value => val,
        :new_value => nval,
        :cell_mode => cell_mode,
        :separator => separator
      }
    end
    rc = RowChange.new(row_mode,cells)
    unless columns.title_row.nil?
      rcs.each { |rc| self.apply_row_main(rc,columns) }
      rcs = []
      self.apply_row_main(rc,columns)
    else
      rcs << rc
    end
  end
  rcs.each { |rc| self.apply_row_main(rc,columns) }
  render.end_diff
end

#apply_row_main(rc, columns) ⇒ Object



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# File 'lib/coopy/diff_parser.rb', line 13

def apply_row_main(rc,columns)
  rc.columns = columns
  @diff_output.apply_row(rc)
end

#set_output(output) ⇒ Object



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# File 'lib/coopy/diff_parser.rb', line 9

def set_output(output)
  @diff_output = output
end

#to_stringObject



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# File 'lib/coopy/diff_parser.rb', line 87

def to_string
  return diff_output.to_string unless diff_output.nil?
  ""
end