Class: String

Inherits:
Object
  • Object
show all
Includes:
Howzit::StringUtils
Defined in:
lib/howzit/colors.rb,
lib/howzit/stringutils.rb

Overview

Template coloring

Instance Method Summary collapse

Methods included from Howzit::StringUtils

#available?, #build_note?, #c, #comp_distance, #contains_count, #distance, #extract_metadata, #format_header, #in_distance?, #in_order, #iterm_marker, #metadata, #normalize_metadata, #note_title, #preserve_escapes, #render_arguments, #render_named_placeholders, #render_numeric_placeholders, #render_template, #render_template!, #should_mark_iterm?, #split_line, #to_config_value, #to_rx, #trunc, #trunc!, #uncolor, #wrap, #wrap!

Instance Method Details

#last_color_code ⇒ Object

Get the calculated ANSI color at the end of the string

Returns:

  • ANSI escape sequence to match color



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# File 'lib/howzit/colors.rb', line 140

def last_color_code
  m = scan(ESCAPE_REGEX)

  em = ['0']
  fg = nil
  bg = nil
  rgbf = nil
  rgbb = nil

  m.each do |c|
    case c
    when '0'
      em = ['0']
      fg, bg, rgbf, rgbb = nil
    when /^[34]8/
      case c
      when /^3/
        fg = nil
        rgbf = c
      when /^4/
        bg = nil
        rgbb = c
      end
    else
      c.split(/;/).each do |i|
        x = i.to_i
        if x <= 9
          em << x
        elsif x >= 30 && x <= 39
          rgbf = nil
          fg = x
        elsif x >= 40 && x <= 49
          rgbb = nil
          bg = x
        elsif x >= 90 && x <= 97
          rgbf = nil
          fg = x
        elsif x >= 100 && x <= 107
          rgbb = nil
          bg = x
        end
      end
    end
  end

  escape = "\e[#{em.join(';')}m"
  escape += "\e[#{rgbb}m" if rgbb
  escape += "\e[#{rgbf}m" if rgbf
  escape + "\e[#{[fg, bg].delete_if(&:nil?).join(';')}m"
end

#normalize_color ⇒ String

Normalize a color name, removing underscores, replacing "bright" with "bold", and converting bgbold to boldbg

Returns:

  • (String) —

    Normalized color name



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# File 'lib/howzit/colors.rb', line 131

def normalize_color
  gsub(/_/, '').sub(/bright/i, 'bold').sub(/bgbold/, 'boldbg')
end

#validate_color ⇒ String

Extract the longest valid %color name from a string.

Allows %colors to bleed into other text and still be recognized, e.g. %greensomething still finds %green.

Returns:

  • (String) —

    a valid color name



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# File 'lib/howzit/colors.rb', line 111

def validate_color
  valid_color = nil
  compiled = ''
  normalize_color.split('').each do |char|
    compiled += char
    if Color.attributes.include?(compiled.to_sym) || compiled =~ /^([fb]g?)?#([a-f0-9]{6})$/i
      valid_color = compiled
    end
  end

  valid_color
end