Module: Cri::CoreExtensions::String

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

Instance Method Summary collapse

Instance Method Details

#wrap_and_indent(width, indentation) ⇒ Object

Word-wraps and indents the string.

width

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

indentation

The number of spaces to indent each wrapped line.



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

def wrap_and_indent(width, indentation)
  # Split into paragraphs
  paragraphs = self.split("\n").map { |p| p.strip }.reject { |p| p == '' }

  # 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 >= width
        lines << line
        line = ''
      end

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

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