Method: NA::Color.template

Defined in:
lib/na/colors.rb

.template(input) ⇒ String

Convert a template string to a colored string. Colors are specified with single letters inside curly braces. Uppercase changes background color.

w: white, k: black, g: green, l: blue, y: yellow, c: cyan, m: magenta, r: red, b: bold, u: underline, i: italic, x: reset (remove background, color, emphasis)

Also accepts #RGB and #RRGGBB strings. Put a b before the hash to make it a background color

Color.template(‘RwbWarning:x wyou look a little gillx’)

Color.template(‘#f0aThis is an RGB color’)

Examples:

Convert a templated string

Convert using RGB colors

Parameters:

  • input (String, Array) —

    The template string. If this is an array, the elements will be joined with a space.

Returns:

  • (String) —

    Colorized string



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# File 'lib/na/colors.rb', line 235

def template(input)
  input = input.join(' ') if input.is_a? Array
  return input.gsub(/(?<!\\)\{#?(\w+)\}/i, '') unless NA::Color.coloring?

  input = input.gsub(/(?<!\\)\{((?:[fb]g?)?#[a-f0-9]{3,6})\}/i) do
            hex = Regexp.last_match(1)
            rgb(hex)
          end

  fmt = input.gsub(/%/, '%%')
  fmt = fmt.gsub(/(?<!\\)\{(\w+)\}/i) do
    Regexp.last_match(1).split('').map { |c| "%<#{c}>s" }.join('')
  end

  colors = { w: white, k: black, g: green, l: blue,
             y: yellow, c: cyan, m: magenta, r: red,
             W: bgwhite, K: bgblack, G: bggreen, L: bgblue,
             Y: bgyellow, C: bgcyan, M: bgmagenta, R: bgred,
             d: dark, b: bold, u: underline, i: italic, x: reset }

  format(fmt, colors)
end