module Webgen::CLI::Utils

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

Constants

DEFAULT_WIDTH

Attributes

use_colors[RW]

Public Class Methods

format(content, width = DEFAULT_WIDTH, indent = 0, first_line_indented = false) click to toggle source

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.

# File lib/webgen/cli/utils.rb, line 45
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) click to toggle source

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.

# File lib/webgen/cli/utils.rb, line 32
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