/usr/lib/ruby/vendor_ruby/highline/string_extensions.rb is in ruby-highline 1.6.20-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | # Extensions for class String
#
# HighLine::String is a subclass of String with convenience methods added for colorization.
#
# Available convenience methods include:
# * 'color' method e.g. highline_string.color(:bright_blue, :underline)
# * colors e.g. highline_string.magenta
# * RGB colors e.g. highline_string.rgb_ff6000
# or highline_string.rgb(255,96,0)
# * background colors e.g. highline_string.on_magenta
# * RGB background colors e.g. highline_string.on_rgb_ff6000
# or highline_string.on_rgb(255,96,0)
# * styles e.g. highline_string.underline
#
# Additionally, convenience methods can be chained, for instance the following are equivalent:
# highline_string.bright_blue.blink.underline
# highline_string.color(:bright_blue, :blink, :underline)
# HighLine.color(highline_string, :bright_blue, :blink, :underline)
#
# For those less squeamish about possible conflicts, the same convenience methods can be
# added to the built-in String class, as follows:
#
# require 'highline'
# Highline.colorize_strings
class HighLine
def self.String(s)
HighLine::String.new(s)
end
module StringExtensions
def self.included(base)
HighLine::COLORS.each do |color|
color = color.downcase
base.class_eval <<-END
undef :#{color} if method_defined? :#{color}
def #{color}
color(:#{color})
end
END
base.class_eval <<-END
undef :on_#{color} if method_defined? :on_#{color}
def on_#{color}
on(:#{color})
end
END
HighLine::STYLES.each do |style|
style = style.downcase
base.class_eval <<-END
undef :#{style} if method_defined? :#{style}
def #{style}
color(:#{style})
end
END
end
end
base.class_eval do
undef :color if method_defined? :color
undef :foreground if method_defined? :foreground
def color(*args)
self.class.new(HighLine.color(self, *args))
end
alias_method :foreground, :color
undef :on if method_defined? :on
def on(arg)
color(('on_' + arg.to_s).to_sym)
end
undef :uncolor if method_defined? :uncolor
def uncolor
self.class.new(HighLine.uncolor(self))
end
undef :rgb if method_defined? :rgb
def rgb(*colors)
color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
color("rgb_#{color_code}".to_sym)
end
undef :on_rgb if method_defined? :on_rgb
def on_rgb(*colors)
color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join
raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/
color("on_rgb_#{color_code}".to_sym)
end
# TODO Chain existing method_missing
undef :method_missing if method_defined? :method_missing
def method_missing(method, *args, &blk)
if method.to_s =~ /^(on_)?rgb_([0-9a-fA-F]{6})$/
color(method)
else
raise NoMethodError, "undefined method `#{method}' for #<#{self.class}:#{'%#x'%self.object_id}>"
end
end
end
end
end
class HighLine::String < ::String
include StringExtensions
end
def self.colorize_strings
::String.send(:include, StringExtensions)
end
end
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