Class: Ansi2txt::ANSI2TXT

Inherits:
Object
  • Object
show all
Defined in:
lib/ansi2txt.rb

Overview

ANSI2TXT converts ANSI escape sequences to readable plain text

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**kwargs) ⇒ ANSI2TXT

Returns a new instance of ANSI2TXT.



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# File 'lib/ansi2txt.rb', line 12

def initialize(**kwargs)
  @input = kwargs[:input]
  @input = $stdin if @input.nil?
  @output = kwargs[:output]
  @output = $stdout if @output.nil?
end

Instance Attribute Details

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/ansi2txt.rb', line 71

def input
  @input
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/ansi2txt.rb', line 71

def output
  @output
end

Class Method Details

.from_io(input) ⇒ Object

rubocop:enable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity



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# File 'lib/ansi2txt.rb', line 61

def self.from_io(input)
  output = Tempfile.open("")
  ansi2text = Ansi2txt::ANSI2TXT.new(input: input, output: output)
  ansi2text.ansi2txt
  output.rewind
  result = output.read
  output.close
  result
end

Instance Method Details

#ansi2txt ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity



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# File 'lib/ansi2txt.rb', line 28

def ansi2txt
  loop do
    ch = getchar
    while ch.eql?("\r")
      ch = getchar
      putchar("\r") unless ch.eql?("\n")
    end

    if ch.eql?("\e")
      if (ch = getchar).eql?("[")
        while (ch = getchar).eql?(";") || ch.between?("0", "9") || ch.eql?("?")
        end
      elsif ch.eql?("]") && (ch = getchar).between?("0", "9")
        loop do
          if (ch = getchar).nil? || "\a".eql?(ch)
            break
          elsif ch.eql?("\e")
            ch = getchar
            break
          end
        end
      elsif ["%", "(", ")"].include?(ch)
        ch = getchar
      end
    elsif !ch.nil?
      putchar(ch)
    end

    break if ch.nil?
  end
end

#getchar ⇒ Object 



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# File 'lib/ansi2txt.rb', line 19

def getchar
  @input.getc
end

#putchar(chara) ⇒ Object 



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# File 'lib/ansi2txt.rb', line 23

def putchar(chara)
  @output.putc(chara)
end