Module: MonoclePrint::TerminalEscapes

Included in:
OutputDevice
Defined in:
lib/monocle-print/terminal-escapes.rb

Constant Summary collapse

ANSI_COLORS = 
{
  :blue => 4,   :white => 7,  :magenta => 5,
  :yellow => 3, :green => 2,  :black => 0,
  :red => 1,    :cyan => 6
}
ANSI_COLOR_NAMES = 
ANSI_COLORS.keys.freeze
ANSI_MODIFIERS = 
{
  :bold      => 1,
  :underline => 4,
  :blink     => 5,
  :reverse   => 7,
  :conceal   => 8
}
ANSI_MODIFIER_NAMES = 
ANSI_MODIFIERS.keys.freeze

Class Method Summary collapse

Class Method Details

.ansi_color(type, color, bold = nil) ⇒ Object

def term_info

@term_info ||= TermInfo.new

end



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# File 'lib/monocle-print/terminal-escapes.rb', line 32

def ansi_color( type, color, bold = nil )
  offset =
    case type
    when ?f then 30  # foreground
    when ?b then 40  # background
    end
  code = offset + ANSI_COLORS.fetch( color.to_sym ) do
    raise( ArgumentError, "unknown color name `%s'" % color )
  end
  "\e[#{ '1;' if bold }#{ code }m"
end

.ansi_modifier(name) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 62

def ansi_modifier( name )
  code =
    ANSI_MODIFIERS.fetch( name.to_sym ) do
      fail ArgumentError, "unknown modifier name `%s'" % name
    end
  "\e[#{ code }m"
end

.blink ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 82

def blink
  "\e[5m"
end

.bold ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 74

def bold
  "\e[1m"
end

.clear_attr ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 70

def clear_attr
  "\e[0m"
end

.clear_down ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 155

def clear_down
  "\e[0J"
end

.clear_left ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 147

def clear_left
  "\e[1K"
end

.clear_line ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 151

def clear_line
  "\e[2K"
end

.clear_right ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 143

def clear_right
  "\e[0K"
end

.clear_screen ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 163

def clear_screen
  "\e[2J"
end

.clear_up ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 159

def clear_up
  "\e[1J"
end

.conceal ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 90

def conceal
  "\e[8m"
end

.cursor_backward(columns = 1) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 110

def cursor_backward( columns = 1 )
  "\e[%iD" % columns
end

.cursor_down(lines = 1) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 102

def cursor_down( lines = 1 )
  "\e[%iB" % lines
end

.cursor_forward(columns = 1) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 106

def cursor_forward( columns = 1 )
  "\e[%iC" % columns
end

.cursor_up(lines = 1) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 98

def cursor_up( lines = 1 )
  "\e[%iA" % lines
end

.dobule_height_bottom ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 131

def dobule_height_bottom
  "\e#4"
end

.double_height_top ⇒ Object

VT100 escapes



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# File 'lib/monocle-print/terminal-escapes.rb', line 127

def double_height_top
  "\e#3"
end

.double_width ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 139

def double_width
  "\e#6"
end

.konsole_color(type, r, g, b, bold = nil) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 53

def konsole_color( type, r, g, b, bold = nil)
  prefix =
    case type
    when ?f then 38  # foreground
    when ?b then 48  # background
    end
  "\e[#{ prefix };2;#{ r };#{ g };#{ b }m"
end

.restore_cursor ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 118

def restore_cursor
  "\e[u"
end

.reverse ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 86

def reverse
  "\e[7m"
end

.save_cursor ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 114

def save_cursor
  "\e[s"
end

.set_cursor(line = 0, column = 0) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 94

def set_cursor( line = 0, column = 0 )
  "\e[%i;%iH" % [ line, column ]
end

.single_width ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 135

def single_width
  "\e#5"
end

.underline ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 78

def underline
  "\e[4m"
end

.xterm_color(type, color_index, bold = nil) ⇒ Object 



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# File 'lib/monocle-print/terminal-escapes.rb', line 44

def xterm_color( type, color_index, bold = nil )
  prefix =
    case type
    when ?f then 38  # foreground
    when ?b then 48  # background
    end
  "\e[#{ prefix };5;#{ color_index }m"
end