Module: Cri::CoreExtensions::String

Included in:
String
Defined in:
lib/cri/core_ext/string.rb

Instance Method Summary (collapse)

Instance Method Details

- (String) formatted_as_command

The string, formatted to be used as the name of a command in the help

Returns:

  • (String)

    The string, formatted to be used as the name of a command in the help



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# File 'lib/cri/core_ext/string.rb', line 73

def formatted_as_command
  self.green
end

- (String) formatted_as_option

The string, formatted to be used as an option definition of a command in the help

Returns:

  • (String)

    The string, formatted to be used as an option definition of a command in the help



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# File 'lib/cri/core_ext/string.rb', line 79

def formatted_as_option
  self.yellow
end

- (String) formatted_as_title

The string, formatted to be used as a title in a section in the help

Returns:

  • (String)

    The string, formatted to be used as a title in a section in the help



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# File 'lib/cri/core_ext/string.rb', line 67

def formatted_as_title
  self.upcase.red.bold
end

- (Array<String>) to_paragraphs

Extracts individual paragraphs (separated by two newlines).

Returns:

  • (Array<String>)

    A list of paragraphs in the string



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# File 'lib/cri/core_ext/string.rb', line 11

def to_paragraphs
  lines = self.scan(/([^\n]+\n|[^\n]*$)/).map { |s| s[0].strip }

  paragraphs = [ [] ]
  lines.each do |line|
    if line.empty?
      paragraphs << []
    else
      paragraphs.last << line
    end
  end

  paragraphs.reject { |p| p.empty? }.map { |p| p.join(' ') }
end

- (String) wrap_and_indent(width, indentation)

Word-wraps and indents the string.

Parameters:

  • width (Number)

    The maximal width of each line. This also includes indentation, i.e. the actual maximal width of the text is width-indentation.

  • indentation (Number)

    The number of spaces to indent each line.

Returns:

  • (String)

    The word-wrapped and indented string



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# File 'lib/cri/core_ext/string.rb', line 35

def wrap_and_indent(width, indentation)
  indented_width = width - indentation
  indent = ' ' * indentation
  # Split into paragraphs
  paragraphs = self.to_paragraphs

  # Wrap and indent each paragraph
  paragraphs.map do |paragraph|
    # Initialize
    lines = []
    line = ''

    # Split into words
    paragraph.split(/\s/).each do |word|
      # Begin new line if it's too long
      if (line + ' ' + word).length >= indented_width
        lines << line
        line = ''
      end

      # Add word to line
      line += (line == '' ? '' : ' ' ) + word
    end
    lines << line

    # Join lines
    lines.map { |l| indent + l }.join("\n")
  end.join("\n\n")
end