Method: RDoc::Text#expand_tabs

Defined in:
lib/rdoc/text.rb

#expand_tabs(text) ⇒ Object

Expands tab characters in text to eight spaces



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# File 'lib/rdoc/text.rb', line 68

def expand_tabs text
  expanded = []

  text.each_line do |line|
    nil while line.gsub!(/(?:\G|\r)((?:.{8})*?)([^\t\r\n]{0,7})\t/) do
      r = "#{$1}#{$2}#{' ' * (8 - $2.size)}"
      r.force_encoding text.encoding if Object.const_defined? :Encoding
      r
    end

    expanded << line
  end

  expanded.join
end