Module: Cri::CoreExtensions::String

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

Instance Method Summary (collapse)

Instance Method Details

- (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 10

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 34

def wrap_and_indent(width, 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 >= 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