Module: Webgen::CLI::Utils

Defined in:
lib/webgen/cli/utils.rb

Overview

Provides methods for CLI classes for formatting text in a consistent manner.

Defined Under Namespace

Modules: Color

Constant Summary collapse

DEFAULT_WIDTH = 
80

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.use_colors ⇒ Object

Returns the value of attribute use_colors.



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# File 'lib/webgen/cli/utils.rb', line 12

def use_colors
  @use_colors
end

Class Method Details

.format(content, width = DEFAULT_WIDTH, indent = 0, first_line_indented = false) ⇒ Object

Return an array of lines which represents the text in content formatted so that no line is longer than width characters.

The indent parameter specifies the amount of spaces prepended to each line. If first_line_indented is true, then the first line is indented.



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# File 'lib/webgen/cli/utils.rb', line 46

def self.format(content, width = DEFAULT_WIDTH, indent = 0, first_line_indented = false)
  content = (content || '').dup
  length = width - indent

  paragraphs = content.split(/\n\n/)
  if (0..1) === paragraphs.length
    pattern = /^(.{0,#{length}})[ \n]/m
    lines = []
    while content.length > length
      if content =~ pattern
        str = $1
        len = $&.length
      else
        str = content[0, length]
        len = length
      end
      lines << (lines.empty? && !first_line_indented ? '' : ' '*indent) + str.gsub(/\n/, ' ')
      content.slice!(0, len)
    end
    lines << (lines.empty? && !first_line_indented ? '' : ' '*indent) + content.gsub(/\n/, ' ') unless content.strip.empty?
    lines
  else
    ((format(paragraphs.shift, width, indent, first_line_indented) << '') +
     paragraphs.collect {|p| format(p, width, indent, true) << '' }).flatten[0..-2]
  end
end

.method_missing(id, text = nil) ⇒ Object

Used for dynamically formatting the text (setting color, bold face, …).

The id (method name) can be one of the following: bold, light, green, yellow, red, blue, reset.



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# File 'lib/webgen/cli/utils.rb', line 33

def self.method_missing(id, text = nil)
  if self.use_colors && Color.respond_to?(id)
    Color.send(id, text)
  else
    text.to_s
  end
end