Class: AnsiArt::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/ansi_art/document.rb

Instance Method Summary collapse

Constructor Details

#initialize(ansi) ⇒ Document

Returns a new instance of Document.



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# File 'lib/ansi_art/document.rb', line 3

def initialize ansi
  @ansi = ansi
end

Instance Method Details

#convert(conv) ⇒ Object 



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# File 'lib/ansi_art/document.rb', line 15

def convert conv
  buffer = Buffer.new
  ctrl_seq = ""
  high_byte = false  # current status

  @ansi.bytes do |b|
    if(ctrl_seq.empty? && b != 0x1B) #if is not ctrl sequence
      case b
        when 10 #newline
          conv.put buffer.to_s!
          conv.newLine
        when 13 #ignore \r
        else
          buffer.push b
          high_byte = (!high_byte && b > 128)
        end
      else # is control sequence
        ctrl_seq += (c = [b].pack('C*'))
        if(c.match(/[0-9;\[\x1B]/).nil?)
          if(c == "m") # terminal color config
            ## ANSI Convert##
            # Remove half byte from string before put to converter
            half_char = buffer.slice!(-1) if high_byte
            # puts string with old color settings
            conv.put buffer.to_s!  unless buffer.empty?

            if high_byte
              buffer.push half_char
              # ask converter to store left side color
              conv.wait_half_char!
            end

            # Strip esc chars and "[" and tail char
            ctrl_seq.gsub! /[\x1B\[]/ , ''
            ctrl_seq.slice! -1

            #split with ";" spliter
            confs = ctrl_seq.split(';')
            if(confs.empty?) #*[m = clear setting
              conv.reset_color
            else
              ctrl_seq.split(';').each do |conf|
                case conf = conf.to_i
                  when 0 then conv.reset_color
                  when 1 then conv.set_color_for :bri, true
                  when 30..37 then conv.set_color_for :fg, conf % 10
                  when 40..47 then conv.set_color_for :bg, conf % 10
                end
              end
            end
            conv.commit_color
          end
          ctrl_seq = ""
        end
      end
  end
  conv.put buffer.to_s
  return conv.output
end

#to_html ⇒ Object 



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# File 'lib/ansi_art/document.rb', line 7

def to_html
  return convert HtmlConverter.new
end

#to_png(w = 800, o = {}) ⇒ Object 



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# File 'lib/ansi_art/document.rb', line 11

def to_png w=800, o={}
  return convert PngConverter.new(w,o)
end