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Contents
# encoding: utf-8
module CLAide
class ANSI
# Provides support for generating escape sequences relative to the graphic
# mode.
#
module Graphics
# @return [String] The escape sequence for a text attribute.
#
# @param [Symbol] key
# The name of the text attribute.
#
def self.text_attribute(key)
code = ANSI.code_for_key(key, TEXT_ATTRIBUTES)
graphics_mode(code)
end
# @return [String] The escape sequence for a foreground color.
#
# @param [Symbol] key
# The name of the color.
#
def self.foreground_color(key)
code = ANSI.code_for_key(key, COLORS) + 30
graphics_mode(code)
end
# @return [String] The escape sequence for a background color.
#
# @param [Symbol] key
# The name of the color.
#
def self.background_color(key)
code = ANSI.code_for_key(key, COLORS) + 40
graphics_mode(code)
end
# @return [String] The escape sequence for a foreground color using the
# xterm-256 format.
#
# @param [Fixnum] color
# The value of the color.
#
def self.foreground_color_256(color)
code = [38, 5, color]
graphics_mode(code)
end
# @return [String] The escape sequence for a background color using the
# xterm-256 format.
#
# @param [Fixnum] color
# The value of the color.
#
def self.background_color_256(color)
code = [48, 5, color]
graphics_mode(code)
end
# @return [String] The escape sequence for a single or a list of codes.
#
# @param [Fixnum, Array<Fixnum>] codes
# The code(s).
#
def self.graphics_mode(codes)
codes = Array(codes)
"\e[#{codes.join(';')}m"
end
end
end
end
Version data entries
18 entries across 18 versions & 2 rubygems