Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/dedent.rb

Instance Method Summary collapse

Instance Method Details

#dedent ⇒ Object 



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# File 'lib/dedent.rb', line 2

def dedent
  lines = split "\n"
  return self if lines.empty?
  indents = lines.map do |line|
    line =~ /\S/ ? (line.start_with?(" ") ? line.match(/^ +/).offset(0)[1] : 0) : nil
  end
  indents.compact!
  if indents.empty?
    # No lines had any non-whitespace characters.
    return ([""] * lines.size).join "\n"
  end
  min_indent = indents.min
  return self if min_indent.zero?
  lines.map { |line| line =~ /\S/ ? line.gsub(/^ {#{min_indent}}/, "") : line }.join "\n"
end